1.2.13 Release Notes for MGX 8230, MGX 8250, and MGX 8850 (PXM1) [Cisco MGX 8800 Series Switches]

Table Of Contents

Release Notes for Cisco MGX 8230, MGX 8250, and MGX 8850 (PXM1), Software Version 1.2.13

Contents

About These Release Notes

Features Introduced in Release 1.2.13

Additional PXM1 Stats and NBSM Stats for AUSM and FRSM

Command to Terminate a Telnet Session

Features Not Supported in This Release

MGX 8220 Hardware That Has Been Superseded by MGX 8850-Specific Hardware

Service Module Redundancy Support

Network Management Features

Port/Connection Limits

SNMP MIB

Notes and Cautions

Loopback Plug on a HSSI:DTE Interface

UPC Connection Parameters

ForeSight and Standard ABR Coexistence Guidelines

CLI Modifications in 1.2.x Baseline

Node Related

Connection Management Related

Limitations

CWM Recognition of RPM-PR and MGX-RPM-128M/B Back Cards

clrsmcnf

Problems Fixed in Release 1.2.13

Known Anomalies for Platform Software Release 1.2.13 and Service Module Firmware

Compatibility Notes

MGX 8230/8250/8850 Software Interoperability with Other Products

Boot File Names and Sizes

MGX 8250/8850 Firmware Compatibility

MGX 8230 Firmware Compatibility

Comparison Matrix

RPM Compatibility Matrix

MGX 8850, MGX 8250, and MGX 8230 Release 1.2.13 Hardware

Special Installation and Upgrade Requirements

Special Instructions for Networks Containing FRSM 2 CT3

Executing the Script

Script Functionality

Upgrade Procedure for Non-Redundant PXM

Upgrade Procedure for Redundant PXMs

Instructions to Abort PXM Upgrade

Upgrade from Release 1.1.3x

Upgrade from Release 1.1.2x

Service Module Boot/Firmware Download Procedure

Manual Configuration of Chassis Identification

MGX as a Standalone Node

Chassis Identification During a Firmware Upgrade

Interoperability of Service Module on MGX 8220 and MGX 8250 Switches

Service Module Upgrades

Historical Information from the 1.2.x Baseline

Features Introduced in Release 1.2.11

RPM Automatic Cellbus Double Clocking

Enhanced Alarm Filtering

Features Introduced in Release 1.2.10

AUSM-8T1E1 Egress Channel Counters

PXM-UI-S3 Secondary BITS Clocking

VISM-PR Front Cards

Features Introduced in Release 1.2.02

Configuring the Cellbus Clock (CBC) Rate

Features Introduced in Release 1.2.01

Standard ABR on FRSM-VHS Modules

APS Support on SRM-E

Features Introduced in Release 1.2.00

FRSM-HS2/B

SRM-E

ITU APS Annex-A, All Configurations Supported on PXM1

CESM 8T1 Model B

PXM-UI-S3

Problems Fixed in Release 1.2.11

Problems Fixed in Release 1.2.10

Problems Fixed in Release 1.2.02

Problems Fixed in Release 1.2.01

Problems Fixed in Release 1.2.00

Related Documentation

Obtaining Documentation

World Wide Web

Documentation CD-ROM

Ordering Documentation

Documentation Feedback

Obtaining Technical Assistance

Cisco.com

Technical Assistance Center

Cisco TAC Web Site

Cisco TAC Escalation Center

Release Notes for Cisco MGX 8230, MGX 8250, and MGX 8850 (PXM1), Software Version 1.2.13

Contents

About These Release Notes

Cisco documentation and additional literature are available in a CD-ROM package, which ships with your product. The Documentation CD-ROM, a member of the Cisco Connection Family, is updated monthly. Therefore, it might be more current than printed documentation. To order additional copies of the Documentation CD-ROM, contact your local sales representative or call customer service. The CD-ROM package is available as a single package or as an annual subscription.

Note that for Release 1.2.13, the user documentation (command reference, overview, and installation and configuration guides) were not updated. Use the Release 1.1.3 and 1.2.10 documents in addition to this release note.

Product documentation for MGX 8850 is available at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/wanbu/mgx8850

Product documentation for MGX 8250 is available at the following URL:http://www.cisco.com/univercd/cc/td/doc/product/wanbu/mgx8850

Product documentation for MGX 8230 is available at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/wanbu/mgx8850

Product documentation for VISM 3.1(0) is available at the following URLs:
http://www.cisco.com/univercd/cc/td/doc/product/wanbu/mgx8850/

Product documentation for RPM 1.1 and 1.2.10 is available at the following URLs:
http://www.cisco.com/univercd/cc/td/doc/product/wanbu/mgx8850/rpm/index.htm
http://www.cisco.com/univercd/cc/td/doc/product/wanbu/mgx8250/rpm/index.htm
http://www.cisco.com/univercd/cc/td/doc/product/wanbu/mgx8230/rpm/index.htm

If you are reading Cisco product documentation on the World Wide Web, you can submit comments electronically. Click Feedback in the toolbar, select Documentation, and click Enter the feedback form. After you complete the form, click Submit to send it to Cisco. We appreciate your comments.

Features Introduced in Release 1.2.13

In addition to the following new features, Release 1.2.13 supports all new features introduced in the Release 1.2.x baseline. (See "Historical Information from the 1.2.x Baseline" section.)

Additional PXM1 Stats and NBSM Stats for AUSM and FRSM

Statistics Collection is used to monitor the traffic conditions on the MGX 8250 and MGX 8230 nodes, Statisitics are collected from every Servce Module card at the user specified interval. The Statistical Collection Manager is a CWM feature. For this release, we are adding statistics for the FRSM and AUSM service modules, specifically, the statistics on the MGX-FRSM-VHS, MGX-FRSM-8T1E1 and MGX-AUSM-8 T1E1 service modules, as well as the PXM1.

For more information, refer to the latest CWM release notes.

Command to Terminate a Telnet Session

The delsesn command lets you terminate one or more user-sessions. To see the number of the each active session, use the dspsesn command. Termination takes place immediately upon command execution. Before it proceeds, the CLI warns you that the command is destructive. If you proceed with the deletion, the user whose session is being deleted receives the message, "Forced Logout By <userid> !!!!!!!!!!!," where userid is the user running the delsesn command. Note that you can delete any user-session command with this command. The command syntax is the following.

delsesn <sesn no> [sesn no>] [sesn no>] ...

where

sesn no designates the number of the session in the range 0-15. At least one session number is mandatory, and all others up to a total of 15 are optional. The dspsesn command can provide the user-session numbers.

For example, use the dspsesn command to determine the existing user-sessions. Delete session 2 (user "david9"), then repeat the dspsesn command. Note that the dspsesn output provides a form of the user-session number that delsesn requires: "Session 2."
M8850_NY.7.PXM.a > M8850_NY.7.PXM.a > dspsesn
    Port        Slot      Idle       UserId       From
    -------------------------------------------------------------
    telnet.01 *    7     0:00:00     david        10.19.238.35
    telnet.02      7     0:00:18     david9       10.19.238.35
M8850_NY.7.PXM.a > M8850_NY.7.PXM.a > dspsesn
-----------------------------------------
 > Session 0 (console): 
Waiting for login...
-----------------------------------------
*> Session 1 (telnet): 
Executing command: dspsesn
user name:         david
access level:      SERVICE_GP
slot:              7
slotFallback:      1
From:              10.19.238.35
-----------------------------------------
 > Session 2 (telnet): 
Waiting for user input...
user name:         david9
access level:      GROUP1
slot:              7
slotFallback:      7
From:              10.19.238.35
M8850_NY.7.PXM.a > delsesn 2
WARNING! delsesn is a destructive command it will 
non-gracefully delete sessions selected by you 
Do you wish to proceed ? [y/n] y
M8850_NY.7.PXM.a > dspsesn
-----------------------------------------
 > Session 0 (console): 
Waiting for login...
-----------------------------------------
*> Session 1 (telnet): 
Executing command: dspsesn
user name:         david
access level:      SERVICE_GP
slot:              7
slotFallback:      1
From:              10.19.238.35
Features Not Supported in This Release

•Layer 2 support as an AutoRoute routing node

•Interworking with Cisco 3810

MGX 8220 Hardware That Has Been Superseded by MGX 8850-Specific Hardware

The following MGX 8220 hardware has been superseded by MGX 8850 hardware.

•The MGX-SRM-3T3-C front card replaces the original AX-SRM-3T3-A front card and the MGX-BNC-3T3 back card replaces the original AX-BNC-3T3 back card. Both the AX-SRM-3T3-A/AX-BNC-3T3 card set and the MGX-SRM-3T3-C/MGX-BNC-3T3 card set are supported on the MGX 8220.

•The AX-SCSI2-2HSSI is superseded by the MGX-SCSCI2-2HSSI/B, which works with the MGX-FRSM-HS2 and MGX-FRSM-HS2/B front card.

Service Module Redundancy Support

MGX 8850 provides high-speed native ATM interfaces, which can be configured as ATM UNI ports or trunks. The following table contains redundancy support information for service modules.

Table 1 Service Module Redundancy Support

Front Card Model #

Redundancy Supported

MGX-AUSM-8E1/B

1:N redundancy

MGX-AUSM-8T1/B

1:N redundancy

AX-CESM-8E1

1:N redundancy

AX-CESM-8T1

1:N redundancy

MGX-CESM-8T1/B

1:N redundancy

MGX-CESM-2T3E3

1:1 redundancy

AX-FRSM-8E1

1:N redundancy

AX-FRSM-8E1-C

1:N redundancy

AX-FRSM-8T1

1:N redundancy

AX-FRSM-8T1-C

1:N redundancy

MGX-FRSM-HS2

1:1 redundancy

MGX-FRSM-HS2/B

with HSSI back card, 1:1 redundancy
with 12IN1-8S back card, no redundancy

MGX-FRSM-2CT3

1:1 redundancy

MGX-FRSM-2T3E3

1:1 redundancy

MGX-FRSM-HS1/B

No redundancy

MGX-RPM-128M/B

1:N redundancy

MGX-RPM-PR-256

1:N redundancy

MGX-RPM-PR-512

1:N redundancy

MGX-VISM-8T1

1:N redundancy

MGX-VISM-8E1

1:N redundancy

MGX-VISM-PR-8T1

1:N redundancy

MGX-VISM-PR-8E1

1:N redundancy

Note Support for 1:N redundancy is provided in conjunction with an MGX-SRM-3T3¹ card or an MGX-SRM-E² card.

¹Bulk Distribution is supported for T1 lines only on SRM-3T3 cards.

²Bulk Distribution is supported for T1 and E1 lines using the SRM-E card.

Network Management Features

Network management features are detailed in the CWM Release 11 Release Notes at: http://cisco.com/univercd/cc/td/doc/product/wanbu/svplus/index.htm

Port/Connection Limits

Connection limits can vary. The table below shows total connections per card, but also shows the number of connections per port with LMI enabled. For example, the new FRSM-HS2/B card using a HSSI back card can support a total of 2000 connections on the card. However, if LMI is enabled on both ports, the total number of connections goes down. If StrataLMI is enabled for one ports, that port supports 560 connections. The other port not configured for LMI can support 1000 connections, for a total of 1560 connections.

Overall, there is a limit of 16,000 connections per shelf.

Refer to Table 2 for detailed connection information.

Table 2 Port/Connection Limits

Card Type

Back Card(s)

Conns./Card

Physical Ports

Logical Ports

Per port with StrataLMI

Per port with Annex A/D NNI/UNI

MGX-FRSM-HS2/B

HSSI

2000

2

2

560

898

12IN1-8S

4000

8

8

560

898

MGX-FRSM-HS2

HSSI

2000

2

2

560

898

MGX-FRSM-2CT3

BNC-2T3

4000

2

256

560

898

MGX-FRSM-2T3E3

BNC-2T3

2000

2

2

560

898

BNC-2E3

2000

2

2

560

898

BNC-2E3A

2000

2

2

560

898

MGX-FRSM-HS1/B

12IN1-4S

192

4

4

192

192

MGX-AUSM-8E1/B

RJ48-8E1

1000

8

8

N/A

N/A

SMB E1

1000

8

8

N/A

N/A

MGX-AUSM-8T1/B

RJ48-8T1

1000

8

8

N/A

N/A

AX-CESM-8E1

RJ48-8E1

248

8

248

N/A

N/A

SMB-8E1

248

8

248

N/A

N/A

AX-CESM-8T1

RJ48-T1

192

8

192

N/A

N/A

MGX-CESM-8T1/B

RJ48-T1

192

8

192

N/A

N/A

MGX-CESM-2T3E3

BNC-2T3

1

1

1

N/A

N/A

BNC-2E3

1

1

1

N/A

N/A

AX-FRSM-8E1

RJ48-8E1

1000

8

8

560

898

SMB-8E1

1000

8

8

560

898

AX-FRSM-8E1-C

RJ48-8E1

1000

8

248

560

898

SMB-8E1

1000

8

248

560

898

AX-FRSM-8T1

RJ48-8T1

1000

8

8

560

898

AX-FRSM-8T1-C

RJ48-8T1

1000

8

192

560

898

For the MGX8230 and MGX 8250 Edge Concentrators, 16,000 connections (PVC) on the PXM1 based PAR Controller. If the MGX is a feeder to a BPX, only 15,729 feeder connections are available—271 connections are reserved for communication between the BPX and MGX. Maximum number of PXM UNI connections supported is still 4000 (as in prior releases).

SNMP MIB

The MGX 1 MIB naming convention has been changed as of this release. The new_mibFormat. will now be named mgx1rel1211mib.tar.

The MIBs are bundled in the firmware bundle posted to CCO.

Note The old_mib_Format is discontinued as of this release.

Notes and Cautions

The following notes and cautions should be reviewed before using this release.

Loopback Plug on a HSSI:DTE Interface

Using a loopback plug on a HSSI:DTE interface is not supported and can bring the node down.

UPC Connection Parameters

In Release 1.1.40 and higher, the default PCR is 50 cps, and the default for policing is "enabled." These settings are insufficient for running RPM ISIS protocol over the connection, and with such settings, the ISIS protocol will fail. The PCR value needs to be increased, depending upon the number of interfaces configured for ISIS on the RPM. CLI modification and changes in this release.

Depending upon your connection type, you can use the following CLIs to modify the PCR parameter.

•cnfupccbr

•cnfupcvbr

•cnfupcabr

•cnfupcubr

ForeSight and Standard ABR Coexistence Guidelines

ForeSight is similar to the rate-based ABR control system in TM 4.0 in that they both use Rate up and Rate down messages sent to the source of the connection to control the rate a connection runs at, based on congestion within the switches along that connections path. Both systems use Resource Management (RM) cells to pass these messages. There are differences between the two systems that need to be considered.

RM Cell Generation

ForeSight is a destination-driven congestion notification mechanism. The destination switch is responsible for generating the RM cells, which defaults to every 100 ms. This means that any rate modifications at the source end happen approximately every 100 ms, and the time delay between the actual congestion at the destination and the source getting to know about it could be 100 ms.

In standard ABR a source generates FRM cells every (nRM) cell intervals, where n is configurable. These are used to pass congestion information along to the destination switch, which then uses this information to generate BRM (Backward RM cells) back to the source A further consideration is that the actual user data flow will be lower for an equivalent rate due to the additional RM cells. Therefore, the more traffic being generated on a connection at any one time, the faster the feedback will be to the source.

There is also a TRM parameter which states that if no RM cells have been generated after this time has passed then one will automatically be sent. Depending upon the speed it is running at, an ABR connection may therefore react faster or slower to congestion than the equivalent ForeSight connection. (for example, if an ABR connection runs at 100 cells per second, and nRM is 32, then approximately three RM cells will be generated per second, or once every 300 msecs. If it runs at 1000 cps then an RM cell would be generated approximately every 30 msecs. In both cases, the equivalent ForeSight connection would generate an RM cell every 100 msec.)

Reaction to Feedback Messages - Rate Up

In ForeSight, in response to a Rate Up cell from the destination, the source increases its rate by a percentage of the MIR for that connection. If we call this percentage the rate increase percentage (RIP), then RIP is configurable at the card level (the default is 10 percent). In the case where MIR is low, the ForeSight rate increase will be slow as it has to increase as a percentage of MIR (rather than CIR).

On a standard ABR connection, in the event of available bandwidth (no congestion) the source increases its rate by a factor of (RIF*PCR). This means the rate increase step sizes are much bigger than for ForeSight for larger values of RIF (RIF has a range of 1/2, 1/4,....,1/32768). If RIF is not configured properly then standard ABR will ramp up its rate much faster and to a higher value. This is aided by the fact that the step sizes are bigger and the step frequency is higher in comparison with ForeSight.

Reaction to feedback messages - Rate Down

In ForeSight on receiving a Rate Down cell from the remote end, the source reduces its current rate (actual cell rate) by 13 percent. The rate decrease percentage (RDP). RDP is configurable at the card level.

In standard ABR, rate decrease is by an amount (RDF*ACR). Currently, the default value of RDF is 1/16 (6.25 percent). This means when this connection co-exists with ForeSight connections, in the event of congestion ForeSight connection reduces its rate by 13 percent whereas standard ABR connection reduces its rate by only 6.25 percent. Therefore, in the case of co-existence, if we need to approximate the same behavior across the two connection types, then RDF should be changed to 1/8, so that both connections ramp down by the same amount (13 percent).

Fast-Down

In ForeSight if the destination egress port drops any data due to congestion then the destination sends a Fast Rate Down cell. Also, if a frame cannot be reassembled at the egress due to a lost cell somewhere in the network, a Fast-down will be generated. On reception of Fast Rate Down the source reduces its current rate by 50 percent (this is again a card-level configurable parameter).

Standard ABR does not distinguish between drops and the ECN/EFCI threshold being exceeded. This means that, in case of drops in the egress port queue, a standard ABR connection rate reduces by only (RDF*ACR) but the ForeSight connection rate reduces by (ACR*0.5). Therefore, in the case of co-existence, if we need to approximate the same behavior across the two connection types then Fast Down could be effectively disabled by configuring the reaction to be 13 percent rate down instead of 50 percent.

Guidelines

The two systems will work together within the network, but as the above description suggests, if the differences between the two systems are not taken into consideration, then a ForeSight connection and an ABR connection with the same configuration parameters will not behave the same way within the network.

ABR and ForeSight provide a mechanism for distributing excess bandwidth between connections over and above the minimum rate, therefore if these guidelines are not taken into consideration then the allocation of this excess bandwidth may be biased toward connections running one of these algorithms over connections running the other.

If this is a requirement, the following guidelines may be useful, assuming ForeSight is set to defaults except for Fast Rate Down which is set for 13 percent.

1. Nrm: Nrm needs to be set at a value whereby the approximate RM cell generation is
100 milliseconds, to match that of ForeSight. This calculation is based on the expected average, or sustained, cell rate of the connection. However, if the (potential) fast-down messages from ForeSight are left to equate to 50 percent rate down, then an estimate of how often this may occur needs to be made and factored into the equation. If the connection receives Fast-down messages, then this would make the ForeSight connection react faster than the equivalent ABR connection to congestion. To compensate for this, Nrm needs to be set at a value of less than 100 msecs, a suggested value to aim for is between 60-70 msecs (this would be approximate as n is configurable in steps of 2**n). This would mean that, in the event of congestion, the ABR connection would start to react faster.

2. RIF: Rate increase factor is a factor of PCR in ABR and MCR in ForeSight. The default RIF for ForeSight is MCR*.10. Therefore, RIF should be configured so that (PCR*RIF) approximates MCR*0.1. If Fast-Down is still effectively enabled, then PCR*RIF should approximate MCR*0.62 to compensate.

3. RDF: (Rate Decrease Factor) RDF should be 1/8. This approximates to 13 percent that ForeSight uses.

The following worked examples may help explain this further

Assume a network is currently running ForeSight with default parameters, and supports the following four connection type, where CIR = MIR, PIR = port speed, and QIR = PIR:

T1 Port Speed 64K CIR

Example:

CIR = MIR = 64K
PIR = QIR = port speed = 1544
Fastdown = 13%

(The calculation used to convert between frame based parameters (CIR, PIR, and so on.) and their equivalent cell-based parameters is FR_param *3/800. This allows for cell overheads, and so on. based on frame sizes of 100 octets.)

CIR = MIR = (64000*3/800) = 240 cps
PIR = QIR = (1544 *3/800) = 5790 cps

ForeSight ABR
Rate-up equals (240*.1) = 24 cps RIF equals x where (1590/x) = 24 cps
X needs to be approx 200
RIF equals 256 (nearest factor of 2)

RDF equals 13% RDF = 1/8
Nrm equals 100 msecs Nrm equals 32

RM cells will be generated somewhere between 6 (5790 cps approx equal to 32 cells per 6 msecs) and 133 msecs (240 cps approx equal to 32 cells every 133 msecs) depending on ACR.

CLI Modifications in 1.2.x Baseline

Table 3 lists the new and modified commands in Release 1.2.x baseline.
Table 3 New/Modified CLI Commands in 1.2.x Baseline
CLI

Changes

For Feature

addapsln

The parameter archmode sets the APS architect mode to be used on the working/protection line pairs. The new value "5" is added to specify 5: 1+1 Annex A.

ITU APS Annex-A
SRM-E¹

addcon

Two new values have been introduced for cesCas type to configure a channel with the multiframe option enabled. The values are ds1SfCasMF and ds1EsfCasMF.

The channels on a particular line can be either all MF (SF MF or ESF SF) or all non-mf (SF or ESF). The first connection type added on a particular line (mf/non-mf) decides the sync mode. The second connection must have the same cesCas type, and so on.

CESM²

adddiagtest

Diagnostics.The diagnostic commands are modified for test number 8-SRM M13 Access. This command will perform SRM or SRM-E hardware online diagnostics, depending upon what kind of cards are in the slot. Refer to the Release Notes for Cisco WAN MGX 8850, MGX 8230, and MGX 8250 Software Version 1.1.40 at http://www.cisco.com/univercd/cc/td/doc/product/wanbu/mgx8850/14/rnotes/rn1140.htm

SRM-E

addlink

Bulk redundancy/distribution. The existing command addlink is modified to link a certain number of T1/E1 channels from a bulk interface on SRM-E to a service module's T1/E1 lines. This command checks the card type of the service module in the target slot. The service module must be a T1/E1 type, depending upon the tributary type configured for the SRM-E line using the cnfln command. A service module will switch all its lines to bulk mode even if only one line is mapped to a tributary from SRM-E.

Note You must enable the lines on the SRM-E cards (using the upln and cnfln commands) before you can configure them for distribution.

SRM-E

addln

Existing addln command is modified to support per line interface type configuration (used only with the 12IN1-8S). If the user doesn't specify <interface_type>, the default type V.35 is used.

FRSM-HS2/B

SRM-E

addlnloop

Physical interface. Existing command addlnloop is modified to add a logical loopback on a line on the new card. (SRM-E)

SRM-E

addred

Redundancy activities. The existing command addred is modified to configure redundancy on the new card.

SRM-E

clralldiagtests

Command is modified for test number 8-SRM M13 Access. The command will perform SRM or SRM-E hardware online diagnostics, depending upon what kind of cards are in the slot.

SRM-E

clralm

Managing alarms. Existing command clralm is modified to clear alarms on a line on the new card.

SRM-E

clralmcnt

Managing alarms. The existing command clralmcnt is modified to clear alarm counts on a line on the new card.

SRM-E

cnfbert

BERT activities. The existing command cnfbert is modified to configure a line or port for BERT and start the test on the new card.

SRM-E

cnfclktype

Existing cnfclktype command is added to FRSM-HS2B to configure line clock type for V.35/X.21 interfaces. This command is valid on the FRSM-HS2B-12IN1 card.

FRSM-HS2/B

cnfdiagparams

Command is modified for test number 8-SRM M13 Access. The command will perform SRM or SRM-E hardware online diagnostics, depending upon what kind of cards are in the slot.

SRM-E

clrdiagresults

Command is modified for test number 8-SRM M13 Access. The command will perform SRM or SRM-E hardware online diagnostics, depending upon what kind of cards are in the slot.

SRM-E

cnfclklevel

Permits the user to set the STRATUM level desired. (S-3 Clocking)

PXM-UI-S3

cnfdiagtest

Command is modified for test number 8-SRM M13 Access. The command will perform SRM or SRM-E hardware online diagnostics, depending upon what kind of cards are in the slot.

SRM-E

cnflink

Bulk redundancy/distribution. The existing command cnflink is modified to configure the link for T1 byte-sync mapping on the new card. For byte-sync mapping on sonet interfaces, the T1 framing format should be configured.

The framing format can be specified at line level for all links using the cnfln command. It can be then overridden on a per link basis using the cnflink command.

Note The cnflink command is not applicable to 3T3 back cards. Also, byte-sync mapping is supported only for Sonet --> T1 mapping. Therefore, this command is not applicable if an SRM-E's line are configured for SDH --> E1 mapping.

SRM-E

cnfln

Existing cnfln command is modified on FRSM-HS2/B to support new MIB objects.

Note Do not configure an interface to DTE mode when a physical loopback plug is plugged in. This will cause the line to go in and out of alarm and generate software errors on the PXM. If this situation occurs, use the command cnfln to configure the line as DCE to recover from the situation.

For SRM-E, cnfln command is modified to support new MIB objects and new enumerations for line rate.

For tributary type, option VT2 (carries E1 signals in Sonet) is not supported in this release.

For tributary mapping type, only option, 2 byte-synchronous mapping, is supported for T1.

FRSM-HS2/B

SRM-E

cnfsrmcklsrc

Managing clock sources. Existing command cnfsrmclksrc is modified to support the new SRM-E card.

SRM-E

clrsrmcnf

Managing configuration. The existing command clrsrmcnf is modified to clear all card configuration including distribution links. The configuration cannot be cleared if redundancy is enabled.

SRM-E

delbert

BERT activities. The existing command delbert is modified to delete/terminate the operation in progress on the new card.

SRM-E

deldiagtest

Command is modified for test number 8-SRM M13 Access. The command will perform SRM or SRM-E hardware online diagnostics, depending upon what kind of cards are in the slot.

SRM-E

dellink, delslotlink

Bulk redundancy/distribution. The existing commands dellink/delslotlink are modified to delete distribution links on the new card. After the last distribution link to a service module is deleted, the service module switches all its lines to non-bulk mode (to its back card).

SRM-E

delln

Physical interface. Existing command delln is modified to disable a line on the new card.

Note A line cannot be deleted if distribution links are configured for that line.

SRM-E

dellnloop

Physical interface. Existing command dellnloop is modified to delete a logical loopback on a line on the new card.

SRM-E

delred

Redundancy activities. The existing command delred is modified to delete the redundancy configuration on the new card.

SRM-E

delsesn

Use this command to terminate a UNIX-based telnet session.

delsesn <sesn no> [sesn no>] [sesn no>] ...

where sesn no is the number of the session in the range 0-15.

PXM³

dspalmcnt

Managing alarms.The existing command dspalmcnt is modified to display alarm counts on a line on the new card.

SRM-E

dspalm

Managing alarms. Existing command dspalm is modified to display alarms on a line on the new card.

SRM-E

dspalmcnf

Managing alarms. Display alarm configuration for a line.

SRM-E

dspalms

Managing alarms. Existing command dspalms is modified to display alarms on all lines of a slot on the new card.

SRM-E

dspapsln

ITU APS Annex-A
SRM-E1

dspbert

BERT activities. The existing command dspbert is modified to display the parameters and the results of an ongoing operation on the new card.

SRM-E

dspcd

The dspcd command on the CESM model B card is modified to display "CESM8T1B" next to the Fab number. This can be used to differentiate between CESM model A and B cards.

CLI changes

The channels on a particular line can be either all MF (SF MF or ESF SF) or all non-mf (SF or ESF). The first connection type added on a particular line (mf/non-mf) decides the sync mode. The second connection must have the same cesCas type and so on.

CESM2
dspclkinfo
Displays some extra information about second external BITS clock, as shown in the following screen example:
NOEXTCLK2 = OFF
extClock2Present = No
Last External Clock2 Present = 1
PXM-UI-S3⁴
dspparifs

Displays the existence of interface 7.36 alongwith interface 7.35.

PXM-UI-S34

dspdiagresults.

Command is modified for test number 8-SRM M13 Access. The command will perform SRM or SRM-E hardware online diagnostics, depending upon what kind of cards are in the slot

SRM-E

dspdiagtests

Command is modified for test number 8-SRM M13 Access. The command will perform SRM or SRM-E hardware online diagnostics, depending upon what kind of cards are in the slot.

SRM-E

dsplink, dspslotlink

Bulk redundancy/distribution. The existing commands dsplink/dspslotlink are modified to display distribution links.

SRM-E

dspln

Existing dspln command is modified on FRSM-HS2 B and SRM-E to display new objects.

FRSM-HS2/B
SRM-E

dsplns

Existing dsplns command is modified to display interface type.

FRSM-HS2/B
SRM-E

dsplog

The command dsplog will include SRME online diagnostics failure if it happens.

SRM-E

dspred

Redundancy activities. The existing command dspred is modified to display the redundancy configuration on the new card.

SRM-E

dspsrmclksrc

Managing clock sources. Existing command dspsrmclksrc is modified to display the card types of the current and previous SRM card.

SRM-E

dspsrmcnf

Managing configuration. The existing command dspsrmcnf is modified to display the current card configuration on the new card.

SRM-E

modbert

BERT activities. The existing command modbert is used to modify BERT parameters.

SRM-E

pausediag
resumediag

Command is modified for test number 8-SRM M13 Access. The command will perform SRM or SRM-E hardware online diagnostics, depending upon what kind of cards are in the slot

SRM-E

rundiagtest

Command is modified for test number 8-SRM M13 Access. The command will perform SRM or SRM-E hardware online diagnostics, depending upon what kind of cards are in the slot

SRM-E

showdiagtests

Command is modified for test number 8-SRM M13 Access. The command will perform SRM or SRM-E hardware online diagnostics, depending upon what kind of cards are in the slot

SRM-E

softswitch

Redundancy activities. The existing command softswitch is modified to manually switch to the redundant module for the SRM-E.

SRM-E

switchapsln

The command is modified to include the following options:

3 = forced working-> protection

4 = forced protection->working

5 = manual working->protection

6 = manual protection-> working

ITU APS Annex-A

SRM-E1

switchback

Redundancy activities. The existing command switchback is modified to switch back to the primary module from the redundant module for the SRM-E.

SRM-E

xcnfalm

Managing alarms.The existing command xcnfalm is modified to configure alarms for a line on the new card. The xcnfalm command allows only DS3 and E3 alarm thresholds to be configured.

SRM-E

xcnfcon

Two new values have been introduced for cesCas type to configure a channel with the multiframe option enabled. The values are ds1SfCasMF and ds1EsfCasMF.

The channels on a particular line can be either all MF (SF MF or ESF SF) or all non-mf (SF or ESF). The first connection type added on a particular line (mf/non-mf) decides the sync mode. The second connection must have the same cesCas type, and so on.

CESM2
¹Added in Release 1.2.01.

²Modified in Release 1.2.01.

³Added in Release 1,2,13

⁴Modified in Release 1.2.10
Node Related

A maximum of one BERT test can be performed per bay at any point in time. The command addln should be issued before executing the addapsln command.

If you are moving service modules from an existing MGX 8220 platform to the MGX 8850, the MGX 8220 service modules (AX-FRSM-8T1/E1, and AX-CESM-8T1/E1) need to have the boot flash upgraded to MGX 8220 Release 5.0.00 common boot code (1.0.01 version) before they can be plugged in to the MGX 8850 chassis. All MGX 8220 service module versions that use Release 4.0.xx of boot code and earlier are not supported in the MGX 8850.

If loading of the correct common boot code image is required then it will have to be performed on an MGX 8220 chassis, and cannot be performed on an MGX 8850 chassis. Please refer to the procedure below, which is also outlined in the Cisco MGX 8850 Installation and Configuration publication on the documentation CD.

Step 1 Use ftp to port the Axis 5 common boot image for the service module to a workstation.

Step 2 Plug in the card into the MGX 8220 shelf.

Step 3 Download the proper MGX 8220 shelf Release 5.0 boot image using the following commands from the workstation:
tftp <ip address of the MGX 8220 shelf > 
bin 
put <boot filename> AXIS_SM_1_<slot#>.BOOT 
To insure that TFTP downloaded the appropriate boot code, perform the following procedure to verify the flash checksums.

Step 1 Log into the shelf.
cc <slot #> 
Step 2 Verify that the two checksums are the same.
chkflash
If not, repeat the process until they are the same. If they are the same, then you can safely remove the card. At this point the service module can be used in the MGX 8850 shelf.

Caution If the checksums are not the same when you remove the service module, then the service module will not boot when it is plugged in and the service module will have to be returned using the Cisco Returned Material Authorization process.

Whenever an MGX 8850 is added as a feeder to a BPX 8600, SWSW automatically programs a channel with a VPI.VCI of 3.8 for use as the IP Relay channel. IP Relay is used to send IP data between nodes via the network handler, allowing every node in the domain to be directly addressable via IP addressing and CWM workstations to communicate with every node (especially feeders) using TELNET, SNMP and CWM protocols. If the user tries to add a channel with a VPI.VCI of 3.8, the BPX 8600 does not prevent the user channel from being added, but the MGX 8850 rejects it. To delete the added channel on the BPX 8600, and to get IP relay working you need to reset the BXM card.

In addition to clearing the entire configuration, clrallcnf command clears the network IP addresses. IP addresses and netmasks stay the same (dspifip). However, Cisco recommends entering the cnfifip command to reconfigure the network IP addresses. Network IP is gone (dspnwip), and must be re-configured using the cnfifip command. Refer to the entry on cnfifip in the Cisco MGX 8850 Command Reference for syntax.

Service module upgrades error handling is not provided. If the user skips any of the steps during upgrade or if a power failure happens in the middle of the upgrade, results will be unpredictable. See the Special Installation and Upgrade requirements section for service module upgrades. To recover from procedural errors contact your TAC support personnel.

The MGX 8850 supports 15 simultaneous Telnet sessions and up to 10 TFTP sessions per shelf.

You must use the following Y-cables for FRSM-HS2 and FRSM-CT3 redundancy as specified in the Product Orderability Matrix (Straight Cable: 72-0710-01, Crossover Cable: 72-1265-01, Straight Y-cable: FRSM-HS2: CAB-SCSI2-Y, FRSM-CT3: CAB-T3E3-Y). Other cables are not supported.

Y-cable redundancy for FRSM-HS2, FRSM-2CT3, FRSM-2T3, FRSM-2E3 is supported only for adjacent slots.

There is no need to issue the syncdisk and shutdisk commands before removing the PXMs. The system quiesces the disk by detecting the removal of the PXM board and flushes the write buffers to the disk and puts the PXM in sleep mode. This disables any further hard disk access by locking the actuator.

Note When the card is reinserted the PXM automatically comes out of sleep mode.

Caution Cooling and Power limitations: Customer should be aware of the need for extra power supplies and fans beyond certain limitations. A single fan tray will support all configurations that draw between 1200 and 1400 watts. For power requirements, the MGX 8850 requires a minimum of one power supply per line cord to support the power requirement for five cards.

0-5 Cards

6-10 Cards

11 and Above

Single Line Cord (N+1):

2

3

4

Dual Line Cord (2N):

2

4

6

This is based on an estimated worst-case power requirement of 190W plus margin per card slot.

Connection Management Related

The name of the node cannot be changed if there are PVCs. The node name must be changed from the default value before adding connections, since it cannot be changed later. Use the cnfname command to change the node name.

Only one feeder trunk can be configured. No BNI trunk to MGX 8850 as a feeder is supported.

The slave end of a connection must be added first.

The slave end cannot be deleted and re-added back by itself. If you delete the slave end, the entire connection must be completely torn down and re-added back. If the slave end of the connection is deleted and re-added back by itself, then unpredictable results will happen.

For user connections, VCI 3 and VCI 4 on every VPI are reserved for VPC OAMs.

The actual number of feeder connections you can provision on the PXM is always two less than you have configured. The dsprscprtns command shows max connections as 32767, but you can only use 32767 - 2 = 32765. One connection is used for LMI and another one for IP relay.

There is no error handling detection while provisioning through the CLI. Invalid endpoints and unsupported connection types (such as connections between FRSM-CESM ports or connections between structured and unstructured connections) are permitted using the CLI. The user should not configure these connections.

The sum of CIR of all channels of a port can be greater than port speed as long as CAC is disabled. However, it is not acceptable for one channel's CIR to be greater then port speed even if CAC is disabled. Two channels added up can exceed port speed. This means you cannot oversubscribe a port if only one channel is configured.

When trying to add a port on DS0 slot 32 of a CESM-8E1 line using an SNMP set or the CiscoView Equipment Manager, the SNMP agent in CESM will time out, without adding the port. The SNMP libraries treat the 32 bit DS0 slotmap (cesPortDs0ConfigBitMap) as an integer. The value for the last DS0 is treated as the sign value. This causes a corruption in the packet coming to the agent. As the agent does not receive a complete SNMP packet, it does not respond and times out. Use the command line interface to add a port on DS0 slot 32 of a CESM-8E1 line.

The cnfport command does not allow VPI ranges to be reduced. The cnfport command only allows the VPI range to expand. The correct sequence is to delete all connections on the partitions, delete the partitions, delete the port, and add the port with new VPI range.

On an FRSM-2CT3, one can add 128 ports on a group of 14 T1 lines as indicated below.

• lines 1 to 14: 128 ports (A)

• lines 15 to 28: 128 ports (B)

• lines 29 to 42: 128 ports (C)

• lines 43 to 56: 128 ports (D)

So, to add 256 ports on one T3: add 128 ports on the first 14 T1 lines and the remaining 128 on the next 14 T1 lines.

Note that (A) and (D) are connected to first FREEDM and (B) and (C) are connected to the second FREEDM. Each FREEDM supports only 128 ports. If 128 ports are added on one T3 as in (A), then there cannot be any more ports as in (D). The 129th port should be on lines 15 to 42 (as in B or C).

If the user adds a connection between an RPM and a PXM and then deletes the connection, the RPM shows no connection but the PXM still has the connection. The MGX was designed and implemented in such a way that only the connections that have the master end show up on PXM (by dspcons command). Consider these three connections:

•c1: has only slave end

•c2: has only master end

•c3: has both master and slave end

When using the dspcons command, c2 and c3 will be displayed, not c1. The connection will not show up once the master end (PXM) is deleted. Recommendation: When adding a connection, if one end of the connection is PXM, always configure the PXM side to be the slave. Thus when deleting the RPM side, which is the master, the connection will not show up on the PXM. However, keep in mind that the slave end (PXM) still exists. This also provides a side benefit. When a connection exists with only the slave side, no bandwidth is occupied. The bandwidth is reserved only if the master end exists (with or without the slave).

Limitations

CWM Recognition of RPM-PR and MGX-RPM-128M/B Back Cards

CWM does not distinguish between the Ethernet back card versions installed with the MGX-RPM-128M/B or RPM-PR. There is no functionality difference.

clrsmcnf

As a speedy way to wipe out all configuration on an SM, you can use clrsmcnf. This command works in the following scenarios:

•SM not in slot

•SM in slot and in active (good) state

•SM in slot but in failed state, boot state or another state.

To be able to use an SM of a different type from the current one in a slot you can also use clrsmcnf for example, if there is a FRSM8T1/E1 in the slot with some configuration and the customer wants to use this slot for an AUSM8T1/E1 card.

The following are NOT supported on the MGX 8850. MGX 8250, and MGX 8230:

•Saving a configuration of an SM from one shelf and restoring it to the same slot on another shelf.

•Saving a configuration of an SM in a slot and restoring it to another slot of the same card type.

Note As designed, if RPM-PR is configured as a Label Switch Controller (LSC), execution of the clrsmcnf command on those LSC slots will be rejected.

Problems Fixed in Release 1.2.13

The following is the list of problems fixed in the service module firmware and the Release 1.2.13 software. Included with each is a brief discussion of the problem. A more in-depth discussion is available in the Release Note enclosure of the problem record in Bug Navigator.

Bug ID

Description

CSCdx40133

Symptom:

User will be able to configure the cell bus clock rate to 42Mhz when VISM/VISM-PR resides on the cell bus. VISM/VISM-PR does not support running at cell bus clock rate of 42Mhz

Conditions:

When VISM/VISM-PR and any other VHS cards are on the same cell bus.

Workaround:

Set the cell bus clock rate back to 21MHz.

CSCdy21804

Symptom:

One end of some of the connections will remain alarmed after alarm reason is fixed. The alarm is a false/bogus alarm as the connections are passing traffic and are passing tstcon.

The frequency of the problem is random. The connections affected are random upon reproduction.

This problem severely impact the ability of the customer to manage their network.

Condition:

Generate a legitimate alarm (e.g. power cycle the BPX in the middle, or reset the remote SM) then fix the alarm reason.

Workaround:

- switchcc on the BPX will clear the problm - on the BPX "dncon" on one connection of the card connections will clear the alarm for all the alarmed connections (looks like the connectection to be donwed has to be from the same bundle). Then connectin can be uppped again

- on the SES (for alarmed PNNI connections), dncon, then upcon will clear that connection's alarm. -Deleting the connections and adding them again will clear the alarm. - Resetting the local service module will clear the alarms. - Leaving the connection over long period of time (days) will clear the alarms.

CSCdy31817

Symptom:

AUSM ABRFST connection are picking wrong values for PCR,MCR and ICR. Display for AUSM might be AXIS when you cc to AUSM card.

Conditions:

When issuing dspchan channel number,third screen will give wrong values for the PCR,MCR and ICR.

Workaround:

none

CSCdy60181

Symptom:

Connections show abit failure on PXM

Conditions:

After executing addln/delln on unused line on the CESM.

Workaround:

upcon/dncon on the BPX

Further Problem Description:

This is only a display issue. Traffic is not affected.

CSCdy71636

Symptom:

The customer sees traffic stop in one direction spontaneously

Conditions:

It happens spontaneously on an FRSM 8T1E1 card on the MGX1 shelf. MGX1 shelf is a feeder to an MGX2 shelf.

Workaround:

Using CWM reconfigure the CIR of the connection or delete and re-add the PVC.

Further Problem Description:

The traffic was stopping because the FRSM card was sending Abit=0 to the CPE. PXM and the other end FRSM show no failures.

CSCdy74077

Symptom:

Clock switched to Secondary (Internal if there is no Sec clk src configured.)

Conditions:

Issue switchc or switchyred

Workaround:

1. Unconfigure and reconfigure the Inband clock

2. Use external clocking

Further Problem Description:

This is caused by the non-revertive nature of Inband clocking

CSCdz01066

Symptom:

After adding links for E1-distribution, alarms present on SM line.

Condition:

On SM side it is still transmitting RAI alarm and this is only on the line that corresponds to first link added from SRME.

Workaround:

When this condition is present, delete and re-add the SM line again.

OR

Add the SRME link first and then add the line at SM side.

CSCdz03912

Symptom:

FRSM-HS1/B card resets when entering clrsarcnt without any parms.

Condition: Entering clrsarnt without any parmaters.

Workaround:

Always enter the channel parameters.

Additional Information: It does not fail on FRSM8 or FRSM-VHS cards in MGX shelf.

CSCdz22964

Symptom:

Display alarm needed for VT/VC level

Condition:

This is an enhancement.

Workaround:

None

Known Anomalies for Platform Software Release 1.2.13 and Service Module Firmware

The following is the list of known anomalies in the service module firmware and the Release 1.2.13 software. Included with each is a brief discussion of the problem. A more in-depth discussion is available in the Release Note enclosure of the problem record in Bug Navigator.

Bug ID

Description

CSCdr71479

Symptom:

When using 1:N redundancy on MGX8250/8850 (PXM1) if slot 9 or 25 are configured in the 1:N group, upon transitioning to OR from slot 9 or 25, line alarms are generated. To date, the alarms observed have been RcvLOS (Receive Loss of Signal). Upon returning to the original service module the alarm clears.

Conditions:

- 1:N redundancy must be configured with slot 9 and/or 25 as either the redundant card (1) or in the working group (N).

- Upon a transition to or from slot 9 or 25, the physical lines will go into alarm. To date, the alarms observed have been Loss of Signal.

This has been confirmed with CESM and AUSM, but is not service module specific.

Workaround:

Only known workaround is to not use slot 9 or slot 25 in the 1:N redundancy group.

CSCds14512

Symptom:

The OC-12 feeder trunk was configured as 1+1 unidirectional non- revertive mode on the PXM and the Agilent test set was sending invalid "SF-H" K2 bytes to the

PXM. The "dspapsln" command did not display "protocol switch byte failure" after detecting the invalid K2 bytes.

Conditions:

When APS is configured and the remote end sends invalid "SF-H" K2 bytes.

Workaround:

None.

Further Problem Description:

The invalid K2 bytes is not being detected by the firmware.

CSCds26505

Symptom:

Cannot generate ilmi signal failure on PXM.

Conditions:

unknown.

Workaround:

Use external tester to generate ilmi signal failure.

CSCds86780

Symptom:

The commands dspcd, dspln, dsplns, dspport, dspports, dspcon, and dspcons do not return the prompt after adding multiple 3 segment connections using a script.

Conditions:

adding multiple 3 seg cons om MGX8850 using script

Workaround:

resetcd.

CSCdt35150

Symptom:

Console port connection stopped while taking some captures, did not come up after doing 'delserialif 1' and 'addserialif 1'.

Conditions:

Normal

Workaround:

None

CSCdt90915

Symptom:

When using the addlnloop command on a PXM card and specifying a remote line loop, the line was put in local line loop instead.

Conditions:

remote loop using addlnloop

Workaround:

Use the cnfln command to put the line in remote/local loopback.

CSCdu19822

Symptom:

Frames gets CLP tagged when DE is disabled at the ingress and ingress is pumped at more than cir

Conditions:

DE is disabled at the ingress and ingress is pumped at more than cir

Workaround:

None

CSCdu50072

Symptom:

Deleting APS via SNMP requires "downing" the line.

Conditions:

The SNMP interface is used by CiscoView to manage APS for MGX Rel1.

Workaround:

Use the "delapsln" command, or de-activate the working SONET line.

CSCdu72687

Symptom:

Can't change donothold from front card from CiscoView.

Conditions:

Always

Workaround:

Use CLI

CSCdu77558

Symptom:

On a fully loaded shelf (with 12 RPMs), if multiple redundant groups, if multiple resetcds followed by switchcc causes shelf to reset.

Condition:

On a fully loaded shelf (with 12 RPMs), if multiple redundant groups, if multiple resetcds followed by switchcc causes shelf to reset.

Workaround:

Wait for at least 5-10 mins before doing the switchcc.

CSCdu82341

Symptom:

dspred will show blocked for 1:N redundancy. both primary and secondary vism reboot. redundancy not available.

Conditions:

AIS generated from AUSM, the alarm will not clear on vism card The voatm set up is

3810---ais---ausm_vism-----4ess oam f5 between vism and 3810

Workaround:

None

CSCdv14030

Symptom:

Port deletion fails with message "Deleting resource partition failed"

Conditions:

When a slave end-point is still present on the port.

Workaround:

Delete the master connection which has a slave end point on the port being deleted.

CSCdv17041

Symptom:

Command line interface on the AUSM is not standard and the format is different when entering VPI in different parameters.

Conditions:

Trying to add a VPC connection

Workaround:

None

CSCdv43341

Symptom:

After pulling out the standby PXM1 card, the yellow alarm on the active card disappears after a while.

Conditions:

Removing the standby PXM1.

Workaround:

None.

CSCdv44392

Symptom:

dsplog on the node does not report recovery of the primary clock source after failure. The dspcurclk/dspclkinfo shows the proper clock source.

Conditions:

If the primary clock source is on an APS trunk and changes to and from that clock source occur.

Workaround:

Always check the dspcurclk command output for the correct information on currently active clock sources.

CSCdv45747

Symptom:

More cells are lost when the secondary SM of a redundant set is active on PXM switchover.

Conditions:

When the secondary ausm is active and a pxm switchover takes place.

Workaround:

None known

CSCdv49211

Symptom:

It has been seen that the CPE device is sending traffic to the FRSM-HS1/B but the FRSM-HS1/B is not receiving any traffic on the port.

The physical line is clear of alarms as seen in dspalms however, the port sees 0 traffic coming in, as seen in dspportcnt <cmdArg>port_num<noCmdArg>.

Conditions:

This was seen with FRSM-HS1/B firmware 10.0.22 and PXM firmware 1.1.34.

Workaround:

Execute the commands "addlnloop <line#>" and "dellnloop <line#>" on the line which has failed port.

CSCdv50855

Symptom:

APS active line is stuck in protection line.

Conditions:

APS configured. Reproduction is unknown.

Workaround:

1) Make sure the working cards on both ends are active.

2) Make sure working lines and protection lines are clear at both ends.

3) Delete the APS line and add the APS back again.

CSCdv53678

Symptom:

switchapsln clear command sometimes causes aps line switch over from active working line to the protection line.

Conditions:

Under a specific sequence of actions and conditions, this problem occured once.

Initial conditions:

MGX 7.1 and BPX 1.1 working lines are active, all lines are clear. There is no last user APS request shown. PXM card in slot 7 is active.

Sequence of actions:

a. Disconnect MGX to BPX 7.1 fiber (just one fiber)

b. "switchapsln s 8" on MGX

c. Remove MGX slot 7 back card

d. "switchcc" on MGX

e. Remove MGX slot 7 front card

f. Insert MGX slot 7 back card with the previously disconnected fiber reconnected

g. Insert MGX slot 7 front card

h. "switchcc" on MGX

i. "switchapsln s 7" on MGX

Workaround:

1) Make sure at both ends the working card is active.

2) Make sure both working and protection lines on both sides are clear.

3) Delete APS on MGX and added it back.

CSCdv53969

Symptom:

MGX 8250 does not show the correct clock source using the command dspcurclk after a clock switch.

Condition:

Unknown

Workaround.

None.

CSCdv69491

Symptom:

When two lines on the same AUSM card are connected to each other with only one line enabled, the other line will be in alarm. But if you reset the card, alarm goes away.

Conditions:

Lines on the same card

Workaround:

None

CSCdv84864

Symptom:

When adding a connection, get error message saying 'dlci already in use'

Conditions:

unknown.

Workaround:

Need to manually correct the situation.

CSCdv86457

Symptom:

PXM1 counter is not accurate when packet size is 128 .

Conditions:

Whenever packet size of 128 is used for sending traffic between PE to PE ,pxm counters in dspchancnt shows wrong value.

Workaround:

None.

Further Problem Description:

None.

CSCdv88082

Symptom:

Unable to pump traffic at full port speed. Causes discards.

Conditions:

Traffic at full port speed.

Workaround:

None at present.

CSCdw00713

Symptom:

Major Communication Failure on trunk between 8250 and IGX.

Conditions:

Trunk between 8250 and IGX is in Major Communication Failure causing the feeder to be unreachable.

Workaround:

Under shellConn invoke init_bbif_cnf(), to reprogram QE1, so that QE1 will stop discarding cells. However this is a partial fix. Under investigation.

CSCdw33684

Symptom:

A route disappears on the shelf (routeShow command shows the routes)

Conditions:

It disappears when the user tries to ping the route from a workstation

Workaround:

Add back the route using the routeAdd command

Further Problem Description:

None

CSCdw51070

Symptom:

dspdiagresults show that the CBC access test fails multiple times.

Conditions:

Happens spontaneously

Workaround:

None

Further Problem Description:

The PXM was reset and the CBC error shown in the cbcDspCounts command disappeared but the CBC access test still fails.

CSCdw51344

Symptom:

FRSM reports out of buffers condition while adding connections

Conditions:

It happens for these firmware versions intermittently while using scripts to add connections. MGX:1.2.01 FRSM:10.0.20

Workaround:

None

CSCdw52453

Symptom:

No trap is generated for APS directional mismatch.

Conditions:

Add aps line at both local and remote end. Configure APS so that it has directional mismatch. Now there the trap 50614 is not generated.

Configure APS so that there is no directional mismatch. Trap 50615 is not generated.

Workaround:

None.

Further Problem description:

None

CSCdw60302

Symptom:

With 1+1 APS bi-directional configuration, working line 7.1 in YEL alarm, active line stays on working 7.1.

Conditions:

Removed the Rx of the working line from remote end to cause YEL alarm (RDI-L) on the working line. Delapsln and Addapsln, then configured to bi-directional mode.

Workaround:

Execute a switchaps with Lockout, then switchaps with Clear. Then the active line will switch to protection line 8.1.

Further Problem Description:

This problem is due to line condition prior to APS configuration.

CSCdw74845

Symptom:

Active PXM switchover with software error reset. Core dump available.

Conditions:

Not known

Workaround:

None available

Further Description:

The active pxm reset with software error and the standby pxm took over.

CSCdw83475

Symptom:

tstdelay is inconsistent when run from IGX on a connection between IGX and MGX8250 feeder. It is longer and varies anywhere between 10 - 40ms. tstdelay at the MGX is consistent and much lower: ~4ms.

Conditions:

Can be environment with minimal traffic.

Workaround:

None

CSCdx07153

Symptom:

QE Access online diagnostics test fails.

Conditions:

None

Workaround:

If the card is active, switchcc to the other pxm and monitor the diag results. If the card is standby, reset the card once and active monitor the diag results.

Further Problem Description:

PXM had a QE ACCESS Online diag test failure. During these QE access failures, it is recommended to switch to the other pxm and actively monitor the old QE failing card for any access failures. If QE failures are still seen, then replace the card.

CSCdx12314

Symptom:

Improper output from certain cisco level command

Conditions:

Always

Workaround:

none.

CSCdx15975

Symptom:

Upon a "switchcc", "resetsys" or power cycle when the active PXM is reset, the routes previously manually configured and shown in "routeShow" will disappear and will not be found on the new Active PXM card.

Conditions:

Any activity which causes the Active PXM card to reset will result in route loss. This if only for the routes configured manually.

Workaround:

Manually restore the routes again with "routeAdd" or routeNetAdd"

Further Problem Description:

None.

CSCdx16223

Symptom:

Unable to telnet to PXM. Console access ok to both active and standby PXM. In the console access doing "ll" you will see the following error message "IO Error

- can't stat file: S_iosLib_TOO_MANY_OPEN_FILES"

Conditions:

When the switchcc or automatic switchover happened when tftp get/put is happening. After the switchover, the pxm will have telnet/console access. Then do multiple savesmcnf, saveallcnf etc.

Workaround:

switchcc

Further Problem Description:

When a switchover happens when there is a active file download between active and standby card, the newly active card will start losing descriptors while executing saveallcnf, savesmcnf and other tftp downloads to the C:FW and C:CNF and C:RPM directories. During such a time after losing all descriptors, will not be able to telnet to shelf and console access will show the above error. The work arround is to do switchcc.

CSCdx27962

Symptom:

MGX1 (1.1.34) node logs do not contain details of post diagnostics. dsplog -mod ONLI will not give you post diag results.

Conditions:

MGX1 with 1.1.34 release, and post diagnostics

Workaround:

none

Further Problem Description:

The post diagnostics results are not logged in the node log. The restults are sent as trap to the NMS. CLI will also show proper results.

CSCdx33779

Symptom:

Customer is seeing error message of packet size too big on SNMP GET.Had to resend SNMP query. SNMP GET will give error messgae "Packet Size too Big."

Conditions:

unknown

Workaround:

resend the GET again.

Further Problem Description:

snmp get sometimes get "packet too big" error from the mgx.

CSCdx36186

Symptom:

Traffic drop seen on aborting an upgrade.

Conditions:

1. Graceful upgrade on PXMT3 from 1134 to 1210Av (dspupgrade = install; and newrev 12.10Av)

2. Also, same symptom observed during fallback from 1210Av to 1134.

(dspupgrade = newrev; and abort 1134)

Workaround:

None known.

CSCdx46852

Symptom:

Node went unreachable to the BPX. Service modules showed failed.

Condition

The pxm also showed CBC failures.

Workaround:

Switchcc fixed the outage.

Further Description

The node went unrecheable to bpx and the pxm reported all cards failed in dspcds. But the cards werent in failed state. The pxm also showed online diagnostics

CBC asic monitor test failures. switchcc solves the problem.

CSCdx70775

Symptoms:

incomplete connections on two different MGX nodes

Conditions:

Unknown

Workaround:

Unknown

CSCdx77019

Symptom:

PXM1 reset with Watchdog Timeout Reset.

Conditions:

Unknown

Workaround:

No workaround, PXM switched gracefully.

CSCdx84872

Symptom:

xcnfln on the FRSM-E3 card shows incorrect ds3clk display.

Conditions:

Condition occurs after issuing the "xcnfln" command. It shows the backplane clock from BNM - it should be backplane clock from PXM

Workaround:

None

CSCdy20589

Symptom:

All incoming cells discarded at AUSM ingress Q

Conditions:

When AAL1 test cells at 155 cps CBR are transmitted in both directions over the 1/100 PVC

Workaround:

none

CSCdy28061

Symptom:

chanEgrSrvRate value is not valid.

Conditions:

Add a connection on a VHS card. Then change the CIR for this connection. The chanEgrSrvRate doesn't get updated with the new value of CIR. This is a problem if the chanServiceTypeOverride flag is Enabled.

Workaround:

Modify the chanEgrSrvRate manually.

CSCdy30773

Symptom:

PXM1 online diagnostics are reporting a SAR buffer availabity error. Node logs, core dumps, and error output have been captured.

Conditions:

Node is a spare, and has no production traffic. no ports or connections are provisioned.

Workaround:

None

CSCdy39992

Symptom:

Customer is performing tests in lab environment with CWM 10.4.10 patch 1 and MGX firmware 1.1.32 They have found during testing that a seperate application used to produce stats reports is unable to process all stats files tftp'd from the MGX. Investigation has shown that the failed stats files have a corrupted Header which causes the external application to fail in its processing of the file. This is happening approx 1% of the time from 4 different nodes.

Conditions:

This was found in a lab environment with the MGX 8250's running 1.1.32 and the CWM running 10.4.10 patch 1.

Closer examination of the Binary File converted to ASCII shows the third field does not contain the standard format.

Here is the corrupted header information > 1, 1, 1..2, 3, 0, 1, 60, 255 > 0, 8, 1_16, 1, ( stat type: 0 stat value: 2713 stat peak > value: 238 ), ( > stat ty> We can now see a good header: > 1, 1, 1132, 14, 0, 1, 60, 255 > compared with a bad header: > 1, 1, 1..2, 3, 0, 1, 60, 255

This shows that the stats files is being changed to 1..2 instead of 1132 to show the release. This change is sufficient to cause and exception in the stats collection process and create inconsistent stat reports.

Workaround:

NO workaround currently available.

Further Problem Description:

None.

CSCdy43226

Symptom:

After a successful provisioning, deleting a port from CWM GUI caused the FRSM slot 5 to reset and ssitch to redundancy slot 14.

Conditions:

PXM FW is 1.2.01 FRSM FW is 10.2.01

Workaround:

Softswitch the FRSM back to primary and the FRSM is functioning normally.

Further Problem Description:

There is a software error 20208 and multiple Task failed before the FRSM reset.

CSCdy50417

Symptom:

Ausm in slot 17 stuck in booting Unable to tftp fw.

Conditions:

Node was a hot standby, no customers were provisioned.

Workaround:

Work around was to delete the hung task and do switchcc

CSCdy51472

Symptom:

When using 1:N redundancy on MGX8250/8850 (PXM1) with the SRM-E if slot 9 or 25 are configured in the 1:N group, upon transitioning to OR from slot 9 or 25, line alarms are generated. To date, the alarms observed have been RcvLOS (Receive Loss of Signal). Upon returning to the original service module the alarm clears.

Conditions:

- SRM-E used to provide card redundancy feature. - 1:N redundancy must be configured with slot 9 and/or 25 as either the redundant card (1) or in the working group (N). - Upon a transition to or from slot 9 or 25, the physical lines will go into alarm. To date, the alarms observed have been Loss of Signal.

This has been seen in 1.2.00. This has been confirmed with AUSM, but is not service module specific.

Workaround:

Only known workaround is to not use slot 9 or slot 25 in the 1:N redundancy group.

CSCdy51566

Symptom:

PXM reset due to "DMA freezing for QE1"

Conditions:

Unknown

Workaround:

None

CSCdy51864

Symptom:

Cannot add maintainance port (port 2) using addserilaif command after the first serial port is deleted using "delserialif 1" command.

Conditions:

Seen in PXM running 1.1.32. Also seen in 1.1.40 and 1.1.42

Workaround:

For single PXM MGX8250's there is no workaround. For MGX's with redundant PXM's doing a switchcc will enable both console and mainatainance port on its own

Further Problem Description:

m8250-4a.1.8.PXM.a > addserialif 2 Set failed due to illegal option value(s)

Syntax: addserialif "<serial_port_num>" Serial Port Number -- a number 1..2

The above output describes the error condition.

If the display is done after deleting the first interface and not readding it, the display may look like the following:

m8250-4a.1.7.PXM.a > dspserialif -if 2 Data item not found: serialInterface.serialInterfaceTable.2

CSCdy55509

Symptom:

When softstitch is done, incorrect Alarm comes up even thought some of the information say no alarm/error.

Conditions:

MGX8850 PXM1 Rel : 1.1.41 FRSM-8T F/W : 10.0.24 Y-redundancy

Workaround:

1, delred and then resetcd FRSM card. 2, delcon/addcon

CSCdy59415

Symptom:

APS switch from 'P'->'W' in bidirectional-non_revertive mode causes 'P' line to go into alarm.

Conditions:

Pull out the back-card of the 'P' slot and make it switch to the 'W' slot.

Workaround:

n/a

CSCdy63295

Symptom:

config changes during savecnf should be overwritten on the PXM during restore cnf.

Conditions:

While savecnf is going on, make configuration changes from another telnet session.

Workaround:

none

CSCdy67572

Symptom:

Standby PXM reset itself and removed itself from the node. Without user intervention the card came back to life.

Conditions:

Unknown

Workaround:

Unknown

CSCdy70760

Symptom:

Spurious messages in MGX log causing confusion and concern.

09/21/2002-08:31:58 02 PAR:Fail PAR-7-FDR_EVT AXIS shelf on TRK 1.1 Minor Alarm

Conditions:

Any state change in routing nodes, causes all feeders to get update, and log irrelevant message.

Workaround:

Unknown

CSCdy78050

Symptom:

When manually removing standby PXM1, user traffic dropped approx 20 ms.

Conditions:

Unknown

Workaround:

Unknown

CSCdy81090

Symptom:

MGX1 took a Software Error Reset, and switched over. Executed a core dump.

Conditions:

Unknown

Workaround:

Unknowng. The standby PXM takes over.

Further Problem Description:

The logs indicate the cause for the Software Error Reset was a task PAR:Lmi taking a Address Exception error. (Accessing Memory Location that was out of bounds)

CSCdz16976

Symptom:

Customer added port on AUSM cards and the port did not appear on the PXM.

Conditions:

Creating port on MGX1 with PXM1 processor and AUSM card, the port is created on the service module but fails to appear on the PXM. The log contails the port add, dspports on the service module shows the port, but dsparifs on the active PXM does not have the port.

Workaround:

Delete the port on the AUSM card and perform a softswitch. The port can then be added.

CSCdz25872

Symptom:

SCM doesn't get stat file from FRSM card. CLI's like dsplns/dspports were not working for Slot 28 FRSM card.

Conditions:

Upload tftp stat file from FRSM-8 failed. The cmdTask was failed on the slot. Hence CLI's like dsplns/dspports were not working for Slot 28 FRSM card.

Workaround:

Unknown.

CSCdz30023

Symptom:

Active/Secondary PXM have the same serial number

Conditions:

When a SQL query is done on the card database table you get the same serial number for both PXM cards active/standby

Workaround:

none.

CSCdz31964

Symptom:

All cards in MGX 8250 were in FAILED state, except for the active PXM. The standby PXM was in Card Init state.

Conditions:

Normal operation.

Workaround:

DE advised to attempt to reset the active PXM, if that did not work try a sysreset to restore service.

Further Problem Description:

Node ceased to pass traffic. All service modules (AUSM, CESM, etc) were in a failed condition. Only the active PXM was not failed, and the standby PXM was in Card Init.

CSCdz32761

Symptom:

MGX 8250 with FRSM T3 card with 300, 64k connections on both ports.If traffic is sent within contract on one port then traffic runs clean. If traffic sent on both ports, both within contract, discards are seen at the port - buffer not available counter

Conditions:

300, 64k connections on two ports using 256 byte frames

Workaround:

NONE

CSCdz42342

Symptom:

When issuing "cnfport" on FRSM , card resets .

Conditions:

Unknown

Workaround:

No workaround at this time

CSCdz42844

Symptom:

When using SNMP to poll entries in the OID 1.3.6.1.4.1.351.110.4.3.1.3.1.1 all 'Counter' types are only able to reach 65535. A 'Counter' type should be allowed to max out at 4294967295 (a 32 bit value).

Conditions:

This was confirmed using a CESM-8T1E1 card.

Workaround:

No applicable workaround.

Polling and clearing the counters on a regular basis is the only way to get accurate information

Compatibility Notes

MGX 8230/8250/8850 Software Interoperability with Other Products

MGX 8230/8250/8850 (PXM1)

MGX 1.2.13

MGX 8850/8950 (PXM45/PXM-1E)

MGX 3.0.20
MGX 2.1.80

BPX Switch Software:

In 9.3 Baseline, 9.3.36, 9.3.45
In 9.2 Baseline, Switch Software 9.2.43

BPX SES Shelf:

SES 3.0.20

SES 1.1.75

MGX 8220 Shelf:

MGX 8220 4.1.12
MGX 8220 5.0.19

VISM:

VISM Release 3.1

Boot File Names and Sizes

The following table displays the boot file names and sizes for this release.

Table 4 Boot File Names and Size

File Name

File Size (in bytes)

ausm_8t1e1_AU8_BT_1.0.02.fw

377836

cesm_8t1e1_CE8_BT_1.0.02.fw

264592

cesm_t3e3_CE8_BT_1.0.02.fw

303936

frsm_8t1e1_FR8_BT_1.0.02.fw

297988

frsm_hs1_HS1_BT_1.0.02.fw

293052

frsm_vhs_VHS_BT_1.0.04.fw

468228

pxm_bkup_1.2.13.fw

1345528

rpm-boot-mz.122-11.T2

2796756

MGX 8250/8850 Firmware Compatibility

The following firmware compatibility matrix is for this release.

Table 5 MGX 8250 Switch and MGX 8850 Switch Firmware Compatibility Matrix

PCB Description

CW2000 Name

Latest F/W

File Name

File Size
(in bytes)

PXM1

PXM-1

1.2.13

pxm_1.2.13.fw

2608376

PXM1-2-T3E3

PXM1-2T3E3

1.2.13

pxm_1.2.13.fw

2608376

PXM1-4-155

PXM1-4OC3

1.2.13

pxm_1.2.13.fw

2608376

PXM1-1-622

PXM1-OC12

1.2.13

pxm_1.2.13.fw

2608376

MGX-SRM-3T3/B

SRM-3T3

—

—

—

MGX-SRM-3T3/C

SRM-3T3

—

—

—

MGX-SRM-E

SRM-E

—

—

—

MGX-AUSM-8E1/B

AUSMB-8E1

10.2.13

ausm_8t1e1_10.2.13.fw

1314656

MGX-AUSM-8T1/B

AUSMB-8T1

10.2.13

ausm_8t1e1_10.2.13.fw

1314656

AX-CESM-8E1

CESM-8E1

10.2.13

cesm_8t1e1_10.2.13.fw

701808

AX-CESM-8T1

CESM-8T1

10.2.13

cesm_8t1e1_10.2.13.fw

701808

MGX-CESM-8T1/B

CESM-8T1

10.2.13

cesm_8t1e1_10.2.13.fw

701808

MGX-CESM-T3

CESM-T3

10.2.13

cesm_t3e3_10.2.13.fw

608576

MGX-CESM-E3

CESM-E3

10.2.13

cesm_t3e3_10.2.13.fw

608576

AX-FRSM-8E1/E1-C

FRSM-8E1

10.2.13

frsm_8t1e1_10.2.13.fw

838292

AX-FRSM-8T1/T1-C

FRSM-8T1

10.2.13

frsm_8t1e1_10.2.13.fw

838292

MGX-FRSM-HS2/B

FRSM-HS2/B

10.2.13

frsm_vhs_10.2.13.fw

989620

MGX-FRSM-HS2

FRSM-HS2

10.2.13

frsm_vhs_10.2.13.fw

989620

MGX-FRSM-2CT3

FRSM-2CT3

10.2.13

frsm_vhs_10.2.13.fw

989620

MGX-FRSM-2T3E3

FRSM-2T3

10.2.13

frsm_vhs_10.2.13.fw

989620

MGX-FRSM-2T3E3

FRSM-2E3

10.2.13

frsm_vhs_10.2.13.fw

989620

MGX-FRSM-HS1/B

FRSM-HS1/B

10.2.13

frsm_hs1_10.2.13.fw

770944

MGX-RPM-128M/B

RPM

12.2(11)T2

rpm-js-mz.122-11.T2 (IOS)

9120208

MGX-RPM-PR

RPM

12.2(11)T2

rpm-js-mz.122-11.T2 (IOS)

9120208

MGX 8230 Firmware Compatibility

The following firmware compatibility matrix is for this release.

Table 6 MGX 8230 Firmware Compatibility Matrix

PCB Description

CW2000 Name

Latest F/W

File Name

File Size
(in bytes)

PXM1

PXM-1

1.2.13

pxm_sc_1.2.13.fw

2605308

PXM1-2-T3E3

PXM1-2T3E3

1.2.13

pxm_sc_1.2.13.fw

2605308

PXM1-4-155

PXM1-4OC3

1.2.13

pxm_sc_1.2.13.fw

2605308

PXM1-1-622

PXM1-OC12

1.2.13

pxm_sc_1.2.13.fw

2605308

MGX-SRM-3T3/B

SRM-3T3

—

—

—

MGX-SRM-3T3/C

SRM-3T3

—

—

—

MGX-SRM-E

SRM-E

—

—

—

MGX-AUSM-8E1/B

AUSMB-8E1

10.2.13

ausm_8t1e1_10.2.13.fw

1314656

MGX-AUSM-8T1/B

AUSMB-8T1

10.2.13

ausm_8t1e1_10.2.13.fw

1314656

AX-CESM-8E1

CESM-8E1

10.2.13

cesm_8t1e1_10.2.13.fw

701808

AX-CESM-8T1

CESM-8T1

10.2.13

cesm_8t1e1_10.2.13.fw

701808

MGX-CESM-8T1/B

CESM-8T1

10.2.13

cesm_8t1e1_10.2.13.fw

701808

MGX-CESM-T3

CESM-T3

10.2.13

cesm_t3e3_10.2.13.fw

608576

MGX-CESM-E3

CESM-E3

10.2.13

cesm_t3e3_10.2.13.fw

608576

AX-FRSM-8E1/E1-C

FRSM-8E1

10.2.13

frsm_8t1e1_10.2.13.fw

838292

AX-FRSM-8T1/T1-C

FRSM-8T1

10.2.13

frsm_8t1e1_10.2.13.fw

838292

MGX-FRSM-HS2/B

FRSM-HS2/B

10.2.13

frsm_vhs_10.2.13.fw

989620

MGX-FRSM-HS2

FRSM-HS2

10.2.13

frsm_vhs_10.2.13.fw

989620

MGX-FRSM-2CT3

FRSM-2CT3

10.2.13

frsm_vhs_10.2.13.fw

989620

MGX-FRSM-2T3E3

FRSM-2T3

10.2.13

frsm_vhs_10.2.13.fw

989620

MGX-FRSM-2T3E3

FRSM-2E3

10.2.13

frsm_vhs_10.2.13.fw

989620

MGX-FRSM-HS1/B

FRSM-HS1/B

10.2.13

frsm_hs1_10.2.13.fw

770944

MGX-RPM-128M/B

RPM

12.2(11)T2

rpm-js-mz.122-11.T2 (IOS)

9120208

MGX-RPM-PR

RPM

12.2(11)T2

rpm-js-mz.122-11.T2 (IOS)

9120208

Comparison Matrix

This multiservice gateway comparison matrix is designed to identify capabilities supported in the MGX 8220, 8230, 8250, and 8850 platforms.

Table 7 MGX 8220, MGX 8230, MGX 8250, and MGX 8850 Comparison Matrix

Feature

MGX 8220

MGX 8230

MGX 8250

MGX 8850, PXM1

Slot Capacity

Total Number of Slots

16 single-height

14 single-height/
7 double-height, or combination

32 single-height/
16 double-height, or combination

32 single-height/
16 double-height, or combination

Slots for Processor cards (PXM1s)

2 single-height (plus 2 slots reserved for BNM)

2 double-height

2 double-height

2 double-height

Slots for Service Modules (SMs)

10 single-height

8 single-height/
4 double-height or combination

24 single-height/ 12 double-height, or combination

24 single-height/
12 double-height combination

Slots for SRM Cards

(Service Resource Modules)

2 single-height

2 single-height

4 single-height

4 single-height

Physical Attributes

8220

8230

8250

8850

Height (in inches)

8.75

12.25

26.25 to 29.75

26.25 to 29.75

Width (in inches)

17.45

17.72

17.72

17.72

Depth

20.0

23.5

21.5

21.5

Services

8220

8230

8250

8850

MPLS (IP +ATM)

No

Yes

Yes

Yes

Voice

No

Yes

Yes

Yes

ATM

Yes

Yes

Yes

Yes

Frame Relay

Yes

Yes

Yes

Yes

Frame Relay-to-ATM network interworking

Yes

Yes

Yes

Yes

Frame Relay-to-ATM service interworking

Yes

Yes

Yes

Yes

Circuit Emulation

Yes

Yes

Yes

Yes

Local Switching

8220

8230

8250

8850

No

Yes

Yes

Yes

Feeder

8220

8230

8250

8850

Feeder to BPX 8600

Yes

Yes

Yes

Yes

Feeder to MGX 8850 PXM-45

No

Yes

Yes

Yes

Feeder to IGX

No

Yes

Yes

Yes

Automatic Protection Switching

(APS 1+1)

8220

8230

8250

8850

APS on PXM-1

No

Yes

Yes

Yes

APS on SRM-3T3/B

No

Yes

Yes

Yes

APS on SRM-3T3/C

No

Yes

Yes

Yes

APS on SRM-E

No

Yes

Yes

Yes

Switching Capacity

8220

8230

8250

8850

320 Mbps

1.2 Gbps

1.2 Gbps

1.2 Gbps

Trunk/Port Interfaces

8220

8230

8250

8850

T3/E3

1

2
(one feeder trunk)

2
(one feeder trunk)

2

OC-3c/STM-1

1

4
(one feeder trunk)

4
(one feeder trunk)

4

OC-12c/STM-4

No

1

1

1

OC-48c/STM-16

No

No

No

No

n x T1/E1

Yes

Yes

Yes

Yes

Front Cards

8220

8230

8250

8850

AX-FRSM-8T1

Yes

Yes

Yes

Yes

AX-FRSM-8E1

Yes

Yes

Yes

Yes

AX-FRSM-8T1-C

Yes

Yes

Yes

Yes

AX-FRSM-8E1-C

Yes

Yes

Yes

Yes

MGX-FRSM-HS2

Yes

Yes

Yes

Yes

MGX-FRSM-HS2/B

No

Yes

Yes

Yes

AX-FRSM-HS1

Yes

No

No

No

MGX-FRSM-HS1/B

Yes

Yes

Yes

Yes

MGX-FRSM-2T3/E3

No

Yes

Yes

Yes

MGX-FRSM-2CT3

No

Yes

Yes

Yes

AX-AUSM-TE1

Yes

No

No

No

MGX-AUSM-8T1/B

Yes

Yes

Yes

Yes

AX-AUSM-8E1

Yes

No

No

No

MGX-AUSM-8E1/B

Yes

Yes

Yes

Yes

AX-IMATM-8T1/B

Yes

No

No

No

AX-IMATM-8E1/B

Yes

No

No

No

AX-CESM-8T1

Yes

Yes

Yes

Yes

AX-CESM-8E1

Yes

Yes

Yes

Yes

MGX-CESM-T3E3

No

Yes

Yes

Yes

MGX-CESM-8T1/B

Yes

Yes

Yes

Yes

AX-SRM-T1E1/B

Yes

No

No

No

AX-SRM-3T3

Yes

No

No

No

MGX-SRM-3T3/B

Yes

Yes

Yes

Yes

MGX-SRM-3T3/C

Yes

Yes

Yes

Yes

MGX-SRM-E

No

Yes

Yes

Yes

MGX-VISM-8T1

No

Yes

Yes

Yes

MGX-VISM-8E1

No

Yes

Yes

Yes

MGX-VISM-PR-8T1

No

Yes

Yes

Yes

MGX-VISM-PR-8E1

No

Yes

Yes

Yes

MGX-RPM-128/B

No

Yes

Yes

Yes

MGX-RPM-PR

No

Yes

Yes

Yes

PXM1

No

Yes

Yes

Yes

PXM1-2T3E3

No

Yes

Yes

Yes

PXM1-4-155

No

Yes

Yes

Yes

PXM1-1-622

No

Yes

Yes

Yes

Back Cards

8220

8230

8250

8850

AX-SMB-8E1

Yes

Yes

Yes

Yes

AX-RJ48-8E1

Yes

Yes

Yes

Yes

AX-RJ48-8T1

Yes

Yes

Yes

Yes

AX-R-SMB-8E1

Yes

Yes

Yes

Yes

AX-R-RJ48-8E1

Yes

Yes

Yes

Yes

AX-R-RJ48-8T1

Yes

Yes

Yes

Yes

MGX-SCSI2-2HSSI/B

Yes

Yes

Yes

Yes

MGX-12IN1-4S

Yes

Yes

Yes

Yes

MGX-12IN1-8S

No

Yes

Yes

Yes

MGX-BNC-2T3

No

Yes

Yes

Yes

MGX-BNC-2E3

No

Yes

Yes

Yes

MGX-BNC-2E3A

No

Yes

Yes

Yes

MGX-BNC-3T3-M

No

Yes

Yes

Yes

PXM1-UI

No

Yes

Yes

Yes

PXM-UI-S3

No

Yes

Yes

Yes

MGX-MMF-4-155/B

No

Yes

Yes

Yes

OC3/STM1

No

Yes

Yes

Yes

MGX-SMFIR-4-155/B

No

Yes

Yes

Yes

MGX-SMFLR-4-155/B

No

Yes

Yes

Yes

MGX-SMFIR-1-622/B

No

Yes

Yes

Yes

MGX-SMFLR-1-622/B

No

Yes

Yes

Yes

MGX-RJ45-FE

No

Yes

Yes

Yes

MGX-MMF-FE

No

Yes

Yes

Yes

MGX-RJ45-4E

No

Yes

Yes

Yes

RPM Compatibility Matrix

MGX SW version

1.1.34

1.1.40

1.2.00

1.2.01

1.2.02

1.2.10

1.2.11

1.2.13

IOS Version

12.2(2)T2

12.2(4)T

12.2(4)T1

—¹

12.2(8)T1²

12.2(8)T4

12.2(11)T1

12.2(11)T2

CWM

10.4.01
Patch 1

10.5

10.5.10

—1

10.5.10
Patch 1

11.0.00

11.0.10

11.0.10 Patch 1

¹Due to CSCdx06855, MGX 1.2.01 is no longer generally available and has been deferred. This DDTS has been resolved in MGX 1.2.02.

²MGX 1.2.02 has also been certified with IOS 12.2(4)T3.

MGX 8850, MGX 8250, and MGX 8230 Release 1.2.13 Hardware

Table 8 shows the front card and back card compatibility for the hardware supported in this release. The table lists the card model/ name, part numbers, the minimum version and the minimum revisions of each card supported in Release 1.2.13. Note that there may be more than one 800 level part numbers for the same front cards. The minimum version is identified by the last 2 digits of the 800 level numbers.

Table 8 Hardware Compatibility Matrix

Front Cards

Part Number/
Min. Version

Rev.

Back Cards

Part Number/
Min. Version

Rev.

PXM1

800-05084-02

800-05760-01

800-07888-01

A0

A0

PXM-UI

PXM-UI-S3

800-03688-01

800-05787-01

A0

A0

PXM1-4-155

800-05086-02

800-05762-01

800-06229-02

A0

A0

A0

PXM-UI

PXM-UI-S3

MGX-MMF-4-155/B

MGX-SMFIR-4-155/B

MGX-SMFLR-4-155/B

800-03688-01

800-05787-01

800-05053-01

800-05351-01

800-05352-01

A0

A0

A0

A0

A0

PXM1-1-622

800-05085-02

800-05763-01

800-06228-02

A0

A0

A0

PXM-UI

PXM-UI-S3

MGX-SMFIR-1-622/B

MGX-SMFLR-1-622/B

800-03688-01

800-05787-01

800-05379-01

800-05381-01

A0

A0

A0

A0

PXM1-2-T3E3

800-05087-02

800-05602-01

800-06230-02

A0

A0

A0

PXM-UI

PXM-UI-S3

MGX-BNC-2E3

MGX-BNC-2E3A

MGX-BNC-2T3

800-03688-01

800-05787-01

800-04056-02

800-04743-02

800-04057-02

A0

A0

A0

A0

A0

MGX-SRM-3T3/B

800-04092-01

E0

MGX-BNC-3T3-M

800-03148-02

A0

MGX-SRM-3T3/C

800-05648-01

A0

MGX-BNC-3T3-M

800-03148-02

A0

MGX-SRME

800-14224-02

A0

MGX-SMFIR-1-155

MGX-STM1-EL-1

800-14460-02

800-14479-02

A0

A0

MGX-AUSM-8E1/B

800-04810-01

A0

AX-SMB-8E1

AX-R-SMB-8E1

AX-RJ48-8E1

AX-R-RJ48-8E1

MGX-RJ48-8E1

800-02287-01

800-02410-01

800-02408-01

800-02409-01

800-19310-01

A0

A0

A0

A0

A0

MGX-AUSM-8T1/B

800-04809-01

A0

AX-RJ48-8T1

AX-R-RJ48-8T1

800-02286-01

800-02288-01

A0

A0

AX-CESM-8E1

800-02751-02

A0

AX-SMB-8E1

AX-R-SMB-8E1

AX-RJ48-8E1

AX-R-RJ48-8E1

MGX-RJ48-8E1

800-02287-01

800-02410-01

800-02408-01

800-02409-01

800-19310-01

A0

A0

A0

A0

A0

AX-CESM-8T1

800-02750-02

A0

A0

AX-RJ48-8T1

AX-R-RJ48-8T1

800-02286-01

800-02288-01

A0

A0

MGX-CESM-8T1/B

800-08613-02

A0

A0

AX-RJ48-8T1

AX-R-RJ48-8T1

800-02286-01

800-02288-01

A0

A0

MGX-CESM-T3E3

800-03864-02

A0

MGX-BNC-2E3

MGX-BNC-2E3A

MGX-BNC-2T3

800-04056-02

800-04743-02

800-04057-02

A0

A0

A0

AX-FRSM-8E1

800-02438-04

A0

AX-SMB-8E1

AX-R-SMB-8E1

AX-RJ48-8E1

AX-R-RJ48-8E1

MGX-RJ48-8E1

800-02287-01

800-02410-01

800-02408-01

800-02409-01

800-19310-01

A0

A0

A0

A0

A0

AX-FRSM-8E1-C

800-02462-04

A0

AX-SMB-8E1

AX-R-SMB-8E1

AX-RJ48-8E1

AX-R-RJ48-8E1

MGX-RJ48-8E1

800-02287-01

800-02410-01

800-02408-01

800-02409-01

800-19310-01

A0

A0

A0

A0

A0

AX-FRSM-8T1

800-02437-04

A0

AX-RJ48-8T1

AX-R-RJ48-8T1

800-02286-01

800-02288-01

A0

A0

AX-FRSM-8T1-C

800-02461-04

A0

AX-RJ48-8T1

AX-R-RJ48-8T1

800-02286-01

800-02288-01

A0

A0

MGX-FRSM-2CT3

800-02910-04

800-06335-01

A0

A0

MGX-BNC-2T3

800-04057-02

A0

MGX-FRSM-2T3E3

800-02911-03

A0

MGX-BNC-2E3

MGX-BNC-2E3A

MGX-BNC-2T3

800-04056-02

800-04743-02

800-04057-02

A0

A0

A0

MGX-FRSM-HS1/B

800-05129-01

A0

MGX-12IN1-4S

MGX-SCSI2-2HSSI/B

800-04981-01

800-05463-02
800-05501-01

A0

A0
A0

MGX-FRSM-HS2

800-02909-03

A0

MGX-SCSI2-2HSSI/B

800-05463-02
800-05501-01

A0
A0

MGX-FRSM-HS2/B

800-17066-01

A0

MGX-12IN1-8S

800-18302-01

A0

MGX-RPM-128M/B

800-05743-01

A0

MGX-RJ45-FE

MGX-MMF-FE

MGX-RJ45-4E

MGX-MMF-FDDI

MGX-MMF-FDDI/FD

MGX-SMF-FDDI

MGX-SMF-FDDI/FD

800-02735-02

800-03202-02

800-02737-02

800-02857-01

800-03820-01

800-02736-01

800-03822-01

A0

A0

A0

A0

A0

A0

A0

MGX-RPM-PR-256

800-07178-02

A0

MGX-RJ45-FE

MGX-MMF-FE

MGX-RJ45-4E/B

800-02735-02

800-03202-02

800-12134-01

A0

A0

A0

MGX-RPM-PR-512

800-07656-02

A0

MGX-RJ45-FE

MGX-MMF-FE

MGX-RJ45-4E/B

800-02735-02

800-03202-02

800-12134-01

A0

A0

A0

MGX-VISM-8E1

800-04398-01

A0

AX-SMB-8E1

AX-R-SMB-8E1

AX-RJ48-8E1

AX-R-RJ48-8E1

MGX-RJ48-8E1

800-02287-01

800-02410-01

800-02408-01

800-02409-01

800-19310-01

A0

A0

A0

A0

A0

MGX-VISM-8T1

800-04399-01

A0

AX-RJ48-8T1

AX-R-RJ48-8T1

800-02286-01

800-02288-01

A0

A0

MGX-VISM-PR-8E1

800-07991-02

A0

AX-SMB-8E1

AX-R-SMB-8E1

AX-RJ48-8E1

AX-R-RJ48-8E1

MGX-RJ48-8E1

800-02287-01

800-02410-01

800-02408-01

800-02409-01

800-19310-01

A0

A0

A0

A0

A0

MGX-VISM-PR-8T1

800-07990-02

A0

AX-RJ48-8T1

AX-R-RJ48-8T1

800-02286-01

800-02288-01

A0

A0

]

Special Installation and Upgrade Requirements

Existing customers should use the upgrade procedure Service Module Upgrades to upgrade. A graceful upgrade from any release previous to the current release is supported. For new customers, the image will be pre-installed and should use the PXM installation procedure to upgrade to future maintenance releases.

A graceful upgrade from any release previous to the current release is supported, but a graceful downgrade is not supported. Abort or fallback to the previous release is supported at any stage during the upgrade. For abort instructions, refer to Instructions to Abort PXM Upgrade.

Special Instructions for Networks Containing FRSM 2 CT3

When upgrading from any release prior to Release 1.1.32, under certain conditions with the FRSM 2 CT3, a script must be ran in order to properly upgrade the software. The script resolves the FREEDM buffer issue described in anomaly CSCds66176; namely, that ports are lost sometimes after softswitch or resetcd. The algorithm to allocate FREEDM buffers was changed in order to fix this anomaly. Because of the algorithm change, ports might be lost when upgrading from a release (FRSM version < 10.0.22) with the older algorithm. The script identifies cards which will lose ports if the card is upgraded to Release 1.1.32 or greater.

A README file contained in the Release bundle TAR file located on CCO describes how to run the script and shows an example of the script output.

Executing the Script

Execute the script:

•On all shelves with FRSM-2CT3 prior to an upgrade from any version to Release 1.1.32 (FRSM VHS version 10.0.22) or higher.

•For upgrades from releases prior to Release 1.1.32 for the MGX 8250, MGX 8230, or MGX 8850. To fix this issue, an algorithm change was made in Release 1.1.32 (10.0.22 version of FRSM 2 CT3).

Script Functionality

The script applies the new algorithm for buffer allocation to existing ports to determine if all the ports will remain intact during the upgrade process. After application of the new algorithm, a log file is created for each FREEDM chip on all the FRSM 2CT3 cards on the shelf. The log file contains confirmation that the buffer allocations are OK or NOTOK. If the log file contains NOTOK for a card, then upgrading the card to the new release will cause the card to lose ports. Therefore, ports must be moved to another card before upgrading this card.

Upgrade Procedure for Non-Redundant PXM

Step 1 Save your current configuration.
saveallcnf
Step 2 Get the filename by listing the CNF directory:
node-prompt> ll "C:/CNF"
size          date           time       name
--------      ------         ------     --------
512           APR-08-1999    08:16:18   .                 <DIR>
512           APR-08-1999    08:16:18   ..                <DIR>
512           APR-09-1999    05:26:42   TMP               <DIR>
45433         APR-09-1999    05:28:42   NODENAME_0409990528.zip  
45433         APR-09-1999    05:28:42   NODENAME.zip      
In the file system : 
total space :  819200 K bytes
free  space :  787787 K bytes
Step 3 On the workstation, upload the saved configuration to the workstation:
unix-prompt> tftp <shelf.ip.address>
tftp> bin
tftp> get CNF/NODENAME_0409990528.zip
Received 45433 bytes in 0.4 seconds
Step 4 Download the release to upgrade PXM Backup boot image to the PXM. For example:
unix-prompt> tftp <node_name or IP address>
tftp> bin
tftp> put pxm_bkup_<new_rel>.fw POPEYE@PXM.BT
tftp> quit
Step 5 Download the release to upgrade PXM runtime image to the PXM. For example:
tftp> <node_name or IP address> 
tftp> bin 
tftp> put pxm_<new_rel>.fw POPEYE@PXM.FW
tftp> quit 
Step 6 Download the ComMat.dat file to the C:/FW directory of the Active PXM. Enter the TFTP put command:
tftp <node_name or IP address> 
tftp> bin 
tftp> put ComMat.dat 
tftp> quit 
Step 7 On the PXM type the following when the transfer is done:
PXM.a> copy ComMat.dat /FW/ComMat.dat 
Step 8 Enter install bt <new_rel>.

Step 9 Enter install <new_rel>. At the end of the display, enter yes.
PXM.a> install <new_rel>
redundancy is not available
the other card is not available
you are not in redundant mode,
do you want to try an ungraceful upgrade
(yes or no)?yes
Upgrade Procedure for Redundant PXMs

This section applies to upgrades from 1.1.23 and all later releases.

Caution Do not remove old firmware until the upgrade is done.

Note First you must ensure that the shelf IP address and the PXM IP address are set. The PXM must have its own unique IP address and there must be a another unique IP address for the shelf.

Step 1 Save your current configuration.
saveallcnf
Step 2 Get the filename by listing the CNF directory:
        node-prompt> ll "C:/CNF"
          size          date       time       name
        --------       ------     ------    --------
             512    APR-08-1999  08:16:18   .                 <DIR>
             512    APR-08-1999  08:16:18   ..                <DIR>
             512    APR-09-1999  05:26:42   TMP               <DIR>
           45433    APR-09-1999  05:28:42   NODENAME_0409990528.zip  
           45433    APR-09-1999  05:28:42   NODENAME.zip      
        In the file system : 
            total space :  819200 K bytes
            free  space :  787787 K bytes
Step 3 On the workstation, upload the saved configuration to the workstation:
unix-prompt> tftp <shelf.ip.address>
tftp> bin
tftp> get CNF/NODENAME_0409990528.zip
Received 45433 bytes in 0.4 seconds
Step 4 Verify that one PXM is Active and the other Standby.

Step 5 From the workstation, download the PXM Backup boot image.
unix-prompt> tftp <pxm.ip.address>
tftp> bin
tftp> put pxm_bkup_<new_rel>.fw POPEYE@PXM.BT
tftp> quit
Step 6 From the workstation, download the PXM FW.
unix-prompt> tftp <pxm.ip.address>
tftp> bin
tftp> put pxm_<new_rel>.fw POPEYE@PXM.FW
Sent 1982672 bytes in 18.3 seconds
Make sure that the transfer is successful by looking at the message displayed on the PXM console after the transfer:
Program length = 1982672
Calculated checksum = 0xd9779bc6 stored checksum = 0xd9779bc6
Fw checksum passed
Note Bytes sent, program length, and receive time vary per release. Also, see the Compatibility Matrixes for current file sizes and file names.
Step 7 Download the ComMat.dat file to the C:/FW directory of the Active PXM. Enter the TFTP put command:
unix-prompt> tftp <node_name or IP address> 
tftp> bin 
tftp> put ComMat.dat 
tftp> quit 
Step 8 After the transfer is done, type the following on the PXM:
PXM.a> copy ComMat.dat /FW/ComMat.dat
Step 9 Enter the command install bt <new_rel>.

Step 10 Enter the command install <new_rel>.

Step 11 After the Standby card is reset and successfully enters the hold state, on the Active PXM, enter the command newrev <new_rel>.

The Active card will be reset and go to hold state.

After the newrev, enter the command dspcd to show the firmware revision on the new, active PXM.

Caution If at this stage (after newrev) the upgrade needs to be aborted, follow the instructions under "Instructions to Abort PXM Upgrade."

During the graceful upgrade procedure, if after the newrev command the non-active card enters the "MISMATCH" state, do the normal commit command. You will get a warning message:

other card not found,

do you still want to complete the commit operation

Answer yes and then reset the non-active card.

If you get the MISMATCH during the upgrade process, after you finish, you will still have the MISMATCH. To correct the mismatch, you must check your back cards; they must be identical.

Step 12 After the Active PXM is reset and successfully enters the hold state, on the new Active PXM, enter commit <new_rel>.

Instructions to Abort PXM Upgrade

A graceful downgrade is not supported. However, abort or fallback to the previous release is supported at any stage during the upgrade. The following procedure should be used to abort to a previous release.

Upgrade from Release 1.1.3x

If the upgrade needs to be aborted for any reason during the upgrade process, follow these instructions.

Step 1 Execute abort <release no>
PXM.a> abort <release no> 
Upgrade from Release 1.1.2x

If the upgrade needs to be aborted for any reason during the upgrade process, follow these instructions.

Step 1 If the abort is required before the newrev command is entered, skip to Step 2.

a. Enter the following commands if the upgrade process is past the newrev stage.

b. On the Active PXM, enter shellConn

c. Enter smCardMibVer = 21

d. Enter saveDBToArchive <PXM SlotNo>, 0

e. Enter uploadBram <PXM SlotNo>, <PXM SlotNo>

The <PXM SlotNo> should be 7 for the MGX8850 Switch and for the MGX 8250 Switch (even if the Active PXM is in slot 8, use slot 7).

The <PXM SlotNo> should be 1 for the MGX8230 Switch (even if the Active PXM is in slot 2 use slot 1).

The example that follows is for the MGX8850.
PXM.a > shellConn
-> smCardMibVer=21
-> saveDBToArchive 7, 0
-> uploadBram 7, 7
f. If RPM cards also are on this node, perform the following for each RPM card:

Inside shellConn on Active PXM, enter:

saveDBToArchive <RPM_slot#>, 1

d &arcMem+<RPM_slot#>*4
Copy down the 4 byte address that is displayed after executing the d&arcMem+<RPM_slot#>*4 
command and enter it in the following command.
rmSlotArchFileSave <RPM_slot#>, <4 byte address>
For example, for an RPM in slot 9, the result is:
-> d &arcMem+36
d &arcMem+36
8051cb90:            8702 bad8 0000 0000 0000 0000   *      ..........*
8051cba0:  0000 0000 0000 0000 0000 0000 0000 0000
-> rmSlotArchFileSave 9,0x8702bad8 
Step 2 Execute abort <release no>.
PXM.a> abort <release no>

Service Module Boot/Firmware Download Procedure

The following procedure describes how to download the boot and the service module firmware for slot-independent and slot-dependent images.

Step 1 Download the boot image for the service module onto the PXM hard disk.
unix-prompt> tftp <node_name or IP address> 
tftp> bin 
tftp> put <backup boot> POPEYE@SM_1_0.BT
tftp> quit
Step 2 Download the boot image onto the respective service module using the command:

install bt sm <slot #> <version>

Repeat for each of the service modules on the node.

Step 3 Now, choose instruction for slot-independent or slot-dependent firmware. See below.

For slot-independent image:

Download the selected revision of service module firmware onto the PXM hard disk.
unix-prompt>tftp <node_name or IP address>
tftp> bin
tftp> put <FW file> POPEYE@SM_1_0.FW
tftp> quit 
You cannot do two puts in the same TFTP session.

Repeat for each service module type and for each slot-independent firmware.

For slot-dependent image:

For a slot-specific image (in this example the service module is tied to slot 1),
unix-prompt> tftp <ip address of the MGX 8850 shelf>
tftp> bin 
tftp> put <sm FW file name> POPEYE@SM_1_1.fw
Note If the checksums are not the same when you remove the service module then the service module will not boot when it is plugged in and the service module will have to be RMA'ed.

Note Please consult your Support Representative before performing any software upgrade.

Manual Configuration of Chassis Identification

MGX as a Standalone Node

If any MGX box is to be used as a standalone node for testing, the intended model number from the PXM firmware configuration should be matched MANUALLY by running the "runConfigurator" utility.

Example: node1 was running 1.1.24 as a 8850 node:

If the node's model number is set to 8250 by default after a 1.1.32 firmware upgrade, but the node1 is still configured as a 8850 standalone node on the CWM side, then CWM will reject the node on discovery, and the node will remain undiscovered.

Solution: On every standalone node, manually verify that the runConfigurator settings match the switch.

Chassis Identification During a Firmware Upgrade

On the CWM side, the emd.conf must be modified to a one second wait time so it can help clean up the emc process's internal cache and CWM database (regarding any slot that has sent the functional removal trap). This ensures that CWM will sync up whatever is current with the switch after the upgrade.

Before a firmware upgrade is begun, complete the following steps:

Step 1 Change the following line in emd.conf:

"Hold for 300 secs before deleting the card after a func module trap is received".

to

"Hold for 1 secs before deleting the card after a func module trap is received".

Note This prevents race conditions in updating the database table from the firmware version upgrade.

Step 2 After emd.conf is changed, send HUP signals to all EMC processes.

Step 3 After the firmware upgrade is complete, reset the hold time back to 300 seconds.

Step 4 Send HUP signals to EMC processes to confirm the changeback.

Interoperability of Service Module on MGX 8220 and MGX 8250 Switches

Caution Graceful downgrade for the Service Module is not supported.

If you are moving service modules from an existing MGX 8220 platform to the MGX 8850, the MGX 8220 service modules (AX-FRSM-8T1/E1, and AX-CESM-8T1/E1) need to have the boot flash upgraded to MGX 8220 Release 5.0.00 common boot code (1.0.01 version) before they can be plugged in the MGX 8850 chassis. All MGX 8220 service module versions that use Release 4.0.xx of boot code and earlier are not supported in the MGX 8850.

SPARE DEPOT: Customers receiving a replacement service module via the TAC (through the RMA process) will have the common boot code image that works for MGX 8220 Release 4.x, 5,x, and MGX 8850 installed on legacy service modules. (Spare service modules received directly from manufacturing through the normal ordering process will have the correct boot code image already loaded.)

If loading of the correct common boot code image is required then it will have to be performed on an MGX 8220 chassis, and cannot be performed on an MGX 8850 chassis. Please refer to the procedure below, which is also outlined in the Cisco MGX 8850 Installation and Configuration Guide on the documentation CD.

Use ftp to port the Axis 5 common boot image for the service module to a workstation.

Plug in the card into the MGX 8220 shelf.

Download the proper MGX 8220 shelf Release 5.0 boot image using the following commands from the workstation:
unix-prompt> tftp <ip address of the MGX 8220 shelf > 
tftp> bin 
1tftp> put <boot filename> AXIS_SM_1_<slot#>.BOOTkj
Now you must insure that TFTP downloaded the appropriate boot code by verifying the flash checksums.

Login to the shelf.
unix-prompt> tftp cc <slot #>
tftp> chkflash
Verify that the two checksums are the same.

If NOT, repeat the process until they are the same. If they are the same, then you can safely remove the card. At this point the service module can be used in the MGX 8850 shelf.

Service Module Upgrades

The following steps need to be followed for service module upgrades. Service module firmware images cannot be downloaded as specific versions, because only 1 slot independent image can be present on the disk. Hence, the user cannot revert back during the installation process.

Step 1 Download the service module firmware to the shelf. Refer to Service Module Boot/Firmware Download Procedure.

Note To upgrade all the service modules, load all the firmware files and boot files to the node. Then execute the command resetsys. Make sure that the configuration is saved.

Step 2 For non-graceful upgrades, just reset the card and the service module will come up with the new image.

Step 3 Enter the following command to install the service module boot file:
install bt sm <slot> <version>
where <slot> is the service module that is being upgraded

and <version> is the service module image on the disk.

Step 4 For graceful upgrades, a secondary card should be backing up the service module that needs to be upgraded. Configure the redundancy and enter the following command:
install sm <slot> <version>
where <slot> is the service module that is being upgraded

and <version> is the service module image on the disk.

Note The concept of version is redundant here, since there is only one service module image on the disk. However we do check that the version given by the user matches the image on the disk to make it consistent with PXM upgrade/downgrade.
newrev sm <slot> <version>
where <slot> is the service module that is being upgraded

and <version> is the service module image on the disk.
commit sm <slot> <version>
where <slot> is the service module that is being upgraded

and <version> is the service module image on the disk.

Note There is no abort command for service module upgrade.

Historical Information from the 1.2.x Baseline

Features Introduced in Release 1.2.11

In addition to the following new features, Release 1.2.11 supports all new features introduced in the Release 1.2.x baseline.

RPM Automatic Cellbus Double Clocking

When enabled, this feature will automatically double the Cellbus clock timing when two adjacent RPMs are inserted in the same Cellbus. The doubling of the Cellbus clock provides better traffic management when both RPM clocks rates are set at 42 MHz. Previously, the setting of the Cellbus clock was a manual process.

Enhanced Alarm Filtering

Currently, MGX switches report an integrated shelf alarm to the CWM via the Shelf Integrated alarm trap and MIB. This feature will enhance the switch to report an extra filtered integrated shelf alarm state in the trap and MIB to the CWM and all NMS systems.

The filtered integrated shelf alarm will ignore all lines, ports, connections and feeder alarms. CWM will provide the option to configure the network on a per user basis to display the real integrated shelf alarm or the filtered integrated shelf alarm.

ated shelf alarm.

Features Introduced in Release 1.2.10

In addition to the following new features, Release 1.2.10 supports all new features introduced in the Release 1.2.x baseline.

AUSM-8T1E1 Egress Channel Counters

New AUSM egress counters for channels and ports have been added to monitor traffic statistics. The new statistics are configured through the Statistics Collection Manager (SCM) in the CWM and require no new CLI commands. You can, however, verify the statistics against the traffic using the dspchancnt, dspsarcnt and dspportcnt CLI commands.

For more information, refer to the CWM Release 11 documentation.

PXM-UI-S3 Secondary BITS Clocking

In this release, the PXM-UI-S3 back card, which provides Stratum level 3 clock source inputs, has been enhanced to accept two external BITS clock inputs. A new interface, 7.36, has been added to support one more external clock input. Thus, interface 7.36 now refers to the second BITS clock input of the PXM-UI-S3 back card. The properties and use of this newly added interface is exactly the same as that of interface 7.35, which refers to the first BITS clock input of the PXM-UI-S3 back card. The second BITS clock source can be added as primary, secondary or tertiary clock source, which is the same for any other clock interface.

VISM-PR Front Cards

VISM Release 3.0 introduces the new VISM-PR front cards. The new VISM-PR-8E1 and VISM-PR-8T1 cards work in the MGX 8230, MGX 8250 and MGX 8850 Release 1 switches, in combination with the PXM1 Processor Module card. The VISM-PR cards support 144 channels when used with the G.723.1 codec, whereas the current VISM cards support 64 channels with the G.723.1 codec.

Note The VISM-PR-8E1 and VISM-PR-8T1 cards use the same back cards as the current VISM front cards.

For more information, refer to the Release Notes for Cisco Voice Interworking Service Module Release 3.0(0) and the Cisco VISM Installation and Configuration Guide, Release 3.0.

Features Introduced in Release 1.2.02

Release 1.2.02 supports all new features introduced in the Release 1.2.0x baseline. The following is a new feature for RPM implementations using IOS Release 12.2(8)T1.

Configuring the Cellbus Clock (CBC) Rate

When two adjacent RPM cards are on the same cell bus, that is, occupy adjacent slots, the cellbus clock (CBC) rate should be set to 42MHz. If, for any reason, one of the adjacent RPMs goes to Failed or Empty state, the CBC must be reconfigured to 21MHz on the active, live RPM card, for Traffic Shaping to work correctly. For more inforation, refer to the RPMrelease notes.

Features Introduced in Release 1.2.01

Release 1.2.01 is a feature release. The following table contains a short description of the new features that are available with Release 1.2.01.

Note Due to CSCdx06855, MGX 1.2.01 is no longer generally available and has been deferred. This DDTS has been resolved in MGX 1.2.02.

Features

Standard ABR on FRSM-VHS Modules. This feature implements standard TM 4.0 ABR service on the FRSM-VHS card.

APS Support on SRM-E. The enhanced SRM-E Service Redundancy Module, which was introduced in Release 1.2.00, now provides GR.253 and ITU Annex-A and Annex-B APS 1+1 support.

Standard ABR on FRSM-VHS Modules

The feature implements TM 4.0 ABR service on the FRSM VHS cards which include FRSM-2CT3, FRSM-2T3E3, FRSM-HS2 and FRSM-HS2/B. The current FRSM supports a pre-standard version of congestion control- foresight. This feature provides standards compliant ABR congestion mechanism in addition to foresight. The module will generate RM cells to dynamically increase or decrease bandwidth rate. The scope involves to including all applicable modes of behavior Source, Destination or Switch. Only relevant modes need be considered. Connections with standard ABR parameter will be mapped to appropriate queues that also will co-exist with foresight connection types. For more information, refer to ForeSight and Standard ABR Coexistence Guidelines.

This feature will be implemented via appropriate MIBS and CLI. This feature is supported by CWM 10.5.10 patch 1. There will be one common license for foresight and standard ABR on FRSM. This is a billable feature. Standard ABR fulfills the standards compliance part of TM 4.0.

APS Support on SRM-E

The enhanced SRM-E Service Redundancy Module now provides GR.253 and ITU Annex-A and Annex-B APS 1+1 support. The SRM-E supports a new one-port OC3/STM1 back card, BERT, 1:N redundancy for the 8 port service modules and both T1 and E1 bulk distribution for the 8 port service modules. For more information on SRM-E, refer to SRM-E and CLI Modifications in 1.2.x Baseline.

For intercard APS to operate properly on the MGX 8850 and MGX 8250, an APS connector must be installed between the two cards. For more information on the APS connector and how to install it, see the Cisco MGX 8850 Routing Switch Hardware Installation Guide.

Note The MGX 8230 does not require the APS connector.

Features Introduced in Release 1.2.00

Release 1.2.00 is a feature release. The following table contains a short description of the features which are available with Release 1.2.00.

Features

FRSM-HS2/B. In addition to the current HSSI interface support, the new service module supports V.35 and X.21 Frame Relay interfaces.

SRM-E Service Redundancy Module is an enhanced version of the current SRM-3T3 card, supporting a new one-port OC3/STM1 back card. The new card supports BERT, 1:N redundancy for the 8 port service modules and both T1 and E1 bulk distribution for the 8 port service modules. APS support will be available in a future release.

ITU APS Annex-A, All Configurations Supported on PXM1. This feature was introduced in Release 1.1.40 with some configurations supported; now all are supported. Compatible with CWM 10.5 and higher.

CESM 8T1 Model B eliminates problem in DS0 throughput reduction when CESM channels are configured in CAS mode (not applicable for E1 lines).

PXM-UI-S3, provides support for Stratum-3 clocking. This card was first supported in Release 1.1.31. Release 1.1.31 was compatible with CWM 10.3. The upgrade to Release 1.2.00 provides important fixes to this feature.

FRSM-HS2/B

The FRSM-HS2/B service module supports v.35 and x.21 frame relay interfaces in addition to the current HSSI interface. A new 8 port back card 12IN1-8S is introduced. The new front card supports the current HSSI back card and the new 12IN1-8S back card. All the current FRSM-HS2 features are supported in addition to the FRSM-HS1/B features. Each interface in the 12IN1-8S can be individually configured as x.21 or v.35 interface. The new service module supports a maximum of 4000 connections with the 12IN1-8S back card and 2000 connections with the HSSI back card when no LMI is configured. When LMI is configured, the maximum number of connections per port for strataLMI port is 560 and Annex A/D UNI/NNI port is 898.

The FRSM-HS2/B supports both DCE and DTE modes with line rates between 48Kbps to 51.84 Mbps for HSSI interface and 48Kbps to 8.192 Mbps for v.35/x.21 interface. In FRSM-HS2B, for DTE interfaces the clock frequency threshold %ge is introduced and is configurable (1 - 5) % with a default value of 3%. The new front card and back card is supported in CWM 10.5.10.

Warning Do not configure an interface to a DTE mode when a physical loopback plug is plugged in. This will cause the line to go in and out of alarm, and cause software errors in the PXM. Use the command cnfln to configure the line as DCE to recover from this situation. For further information refer to bug CSCdv79470.

A comparison of the FRSM-HS1/B, FRSM-HS2, and FRSM-HS2/B is shown in Table 9.

Table 9 Comparison of FRSM Modules

Quality

FRSM-HS1/B

FRSM-HS2

FRSM-HS2/B

back card supported

12IN1-4S

HSSI

HSSI, 12IN1-8S

port count

4

2

2 with HSSI

8 with 12IN1-8S

maximum line rate

8 Mbps

52 Mbps

52 Mbps with HSSI

8 Mbps with 12IN1-8S

individually configurable interface type

No

No

No with HSSI

Yes with 12IN1-8S

DTE clock monitoring threshold

—

—

Available

maximum number of connections

200

2000

2000 with HSSI

4000 with 12IN18-S

redundancy support

No

1:1

1:1 with HSSI

None with 12IN1-8S

The following table lists the cables necessary for card performance.

Table 10 Cables Supported for HSSI

DCE

DTE

Cable

FRSM-HS2/B

Cisco router

St. Cable 72-0710-01

FRSM-HS2/B

Non-Cisco standard DTE

St. Cable 72-0710-01

Cisco router

FRSM-HS2/B

St. Cable 72-0710-01

Non-Cisco standard DCE

FRSM-HS2/B

Cross Cable 72-1265-01

FRSM-HS2/B

FRSM-HS2/B

Cross Cable 72-1265-01

SRM-E

The new Service Redundancy Module is an enhanced version of the current SRM-3T3 card. The new card supports a one-port OC3/STM1 back card or functions without a back card.

Features Supported Without a Back Card

Features Supported With a Back Card

BERT

Bulk Distribution

1:N redundancy

BERT

--

1:N redundancy

The new card supports BERT, 1:N redundancy for the 8 port service modules and both T1 and E1 bulk distribution for the 8 port service modules. Support for both GR-253 and ITU- Annex A and B APS 1+1 will be provided in a future release.

The new front card will function without the back card for BERT and 1:N redundancy features. CWM and CiscoView will support the new front and back card.

You can have either 0, 2 or 4 SRM's with redundant processors and 0, 1 or 2 with non-redundant processors. The MGX8250 or MGX 8850 shelf has two bays while the MGX8230 has only one bay. Each bay of the MGX8x50 requires its own SRM-E card along with its respective back card. For full redundancy for the shelf, you need 4 SRM-Es and their respective back cards for MGX8850 or MGX 8250 switch (2 SRM-Es for MGX8230). Since the SRM-E is part of the core card set, if redundancy is required for the PXM, then redundancy also should be provided for the SRM-E.

SRM-E cards do not require any firmware to be downloaded to them. They are controlled by platform software running on the PXM. When a switch-over occurs from active PXM to standby PXM, the corresponding SRM-E cards (as part of the core card set) will also switch.

The interfaces available (through the appropriate back cards below) are:

· OC3 optical

· STS3 electrical

· STM1 optical

· STM1 electrical

The following cards are supported on both MGX8850 or MGX 8250 switch and the MGX8230 switch.

SMFIR: Single Mode Intermediate Range Fiber

STM1-EL-1: Synchronous Transport Module level 1

Limitations

Limits

Physical Interfaces

· Data Communication Channel (DCC) bytes in the Sonet/SDH overhead bytes are not supported.

· Byte-synchronous mapping will be implemented only for T1. Support for E1 will be implemented in a subsequent

phase only if required.

Bulk-mode Distribution

· Service module lines should be mapped to bulk-distributed channels on an all-or-none basis, i.e. a service module

should get all of its lines either from its back card or from the distribution bus but not both.

BERT

· When BERT is active, regular user traffic cannot flow on the port/line being tested.

· Only one BERT session per SRME can be active at any one time.

· You must stop an ongoing BERT operation to configure a different pattern.

· Far end loopbacks and V.54 polynomial loopbacks are not verified (they are always reported to have succeeded).

· if BERT is in progress, it will be stopped (and not resumed) if core card switch-over takes place.

· If BERT is in progress, it will be stopped (and not resumed) if APS switch-over is required.

· Only redundancy with 2 backcards is supported.

Bulk-mode distribution and redundancy

· A maximum of 84 T1 lines and 63 E1 lines can be distributed. Note that 12 slots are available in MGX8x50 for distribution with a capacity to support 96 T1/E1 lines if 8 line service modules are used.

· On MGX8x50, SRME in a given bay can distribute only to service modules in that bay.

· Only one set of service modules can be covered for redundancy in non-bulk mode using redundancy bus. (Multiple sets of service modules can be covered for redundancy in bulk mode)

· A redundancy group can not span both bays of MGX8x50.

Non-bulk mode redundancy

· Multiple redundancy groups can be defined but only one redundancy group in each half of the shelf can be using

the redundancy bus at any time.

BERT

· The BERT functionality described in this document is for use with the SRME card. The following Service Modules

are supported: FRSM-8T1/E1, AUSM-8T1/E1, CESM-8T1/E1, VISM-8T1/E1, FRSM-2CT3

· PN127 patterns are not supported because SRME can only generate the PN127 patterns and the detection is left to the service modules, which can not currently detect the PN127 patterns.

· BERT support in the service module is necessary. Service module must support specific services such as verify

the existence of a port/line, switch the physical lines to the BERT bus etc.

Automatic Protection Switching

· APS will be supported in a future release.

Table 11 SRM-E LED Descriptions

LED

State

Red

Yellow

Green

Off

ACT

Card State

N/A

N/A

Card is active and ready

Card is not yet ready

STDBY

Card State

N/A

Card is in standby mode or a mismatch occurred for active card

N/A

Card is not in standby mode or a mismatch did not occur for the active card

FAIL

Card State

Indicates a major failure with the card

N/A

N/A

Card is working

1:N RED

Card State

N/A

N/A

1:N on-bulk mode redundancy is in force

1:N on-bulk mode redundancy is not in force

BERT

Card State

N/A

N/A

BERT is in progress

BERT is not in progress

Line LED(s)

Line State

Service affecting alarms (LOS, LOF, LOP, AIS etc.)

Non-service affecting alarms (RDI)

Normal operation

Line is not connected

ITU APS Annex-A, All Configurations Supported on PXM1

In the previous MGX1 release (1.1.40), limited ITU-APS Annex-A configuration was validated and made available in MGX 8230, 8250 and 8850 with support for a 1+1 bidirectional non-revertive configuration. In Release 1.2.00, the remaining configurations are supported.

Features

Limitations

Software

Supported configurations for OC3/STM1 (SMFIR) interface and OC12/STM4
(SMFLR and MMF) interface are:

•Bi-directional revertive

•Bi-directional non-revertive

•Unidirectional revertive

•Unidirectional non-revertive

Hardware

There is no support for intracard APS configuration.

Firmware

Interoperability between 1+1 unidirectional and 1+1 bidirectional is not supported.

CESM 8T1 Model B

CESM-8T1 and CESM-8E1 cards provide TDM circuit emulation capabilities over ATM networks, according to ATM forum CES-IS standards.

During field testing, it was found that in the case of CESM-8T1 cards (and not applicable for CESM-8E1 cards), when a CESM channel was configured in CAS mode, the first byte of an AAL1 structure may not be aligned to the first byte of T1 physical level multiframe (SF/ESF). This causes the effective DS0 throughput to reduce from 62.67 Kbps to 60 Kbps. This throughput reduction causes bit errors when the CESM-8T1 is used in certain kind of applications; for example, during transfers of modem calls.

Both hardware and firmware changes were required to eliminate this anomaly. The hardware changes are implemented as CESM-8T1/B revision of the hardware with a minimum Firmware Release 1.2.00. No earlier versions of firmware are supported. The model "B" does not show up via CLI on the PXM or via CWM. However, if the command dspcd is executed from the CESM Model B, it will display "CESM8T1B" next to the Fab number. This can be used to differentiate between CESM model A and B cards. The CESM8T1/B card also is identified by a new face plate on which the card name is suffixed with a "B.".

Model A and Model B card are interchangeable, except when multi-framing is enabled on Model-B. In that case, multi-framing must be disabled before changing cards. Note that the default framing mode is non-multiframe (in order to have a compatibility between Model-A & Model-B).

The CESM8T1/B card supports 1:N redundancy.

Table 12 CESM-8T1 and CESM-8T1 /B Feature Comparison

CESM-8T1

CESM-8T1/B

Exhibits multiframe-AAL1 structure misalignment.

Multiframe-AAL1 structure aligned if MF enabled.

The clocking feature of deriving service module line clock can be used.

If MF is enabled, the service module line clock cannot be used to drive the PXM.

Ingress Cell Bus Slave FIFO reset in rare cases may not be synchronized to Cell Bus clock after switchcc.

Fixed FIFO reset logic in hardware (independent of software). This fixes the switchcc related problems.

PXM-UI-S3

Standard clocking in the MGX is supported with a built-in Stratum-4 clock source. For network applications that require a higher clock accuracy, the PXM-UI back card used with the Stratum-4 can be replaced with an optional PXM-UI-S3 back card that carries a Stratum-3 clock. This clock reference conforms to AT&T T1.5 and ITU G.824 specifications. A provision is also made for a Service Provider to connect an external clock source, if necessary.

The default clock is the internal Stratum-4. Pertinent CLI and MIB support are provided for Stratum-3 configuration. The PXM-UI-S3 back card is also recognized by the Cisco WAN Manager.

The Stratum-3 Clocking feature on the PXM-UI-S3 was introduced in Release 1.1.31, but support was removed in subsequent releases. It is being supported again in Release 1.2.00 and higher.

Hardware Changes

The new PXM-UI-S3 supports both T1 and E1 interfaces through an RJ-45/48 connector.

CLI

A new CLI cnfclklevel permits the user to set the STRATUM level desired.

Default Settings

VISM Release 2.2 on MGX 8250, MGX 8850 Release 1, and MGX8230 Switches supported on the PXM-UI-S3 or this release. The external clock interface cannot be used for Stratum 4 with UIS3 backcard.

Warning If an External clock was configured to drive the node in Stratum-4 clocking with the old UI back card, and this UI card is replaced with the new PXM-UI-S3 back card, the Stratum-3 clocking must be explicitly configured on the node to continue using the External clock source. The following CLI's must be executed:

* cnfclklevel 3
* cnfextclk (with T1/E1 option)

Problems Fixed in Release 1.2.11

The following is the list of problems fixed in the service module firmware and the Release 1.2.11 software. Included with each is a brief discussion of the problem. A more in-depth discussion is available in the Release Note enclosure of the problem record in Bug Navigator.

Bug ID

Description

CSCdt22274

Symptom:

Sonet port is receiving errors when put in local loopback.

Conditions:

When the sonet port is in local loopback, the port errors continue to increment and the line will be in alarm.

Workaround:

None

CSCdu61217

Symptom:

dspcds and dspcd shows card in major alarm because of line failure. dsplns shows everything is fine.

Conditions:

While using addlnloop on the ds1 lines.

Workaround:

addds3loop and delds3loop on the ds3 line.

CSCdu66767

Symptom:

pxmCurClkSourceTrap is not generated properly.

Conditions:

When there is a clock switch.

Workaround:

None.

CSCdv40282

Symptom:

SMs go into a mismatch/failed state if the SMs and the PXM are reset together.

Conditions:

This happened only when the SM and the PXM/ SRM were removed at the same time.

Workaround:

Reset the card which is stuck in the Failed/ Mismatch state

Further Problem Description:

This was happening because the infobits of the SM were not getting updated due to the PXM switchover.

CSCdw46173

Symptom:

Even though the port is in alarm, some channels on the card stop transmitting AIS cells towards the remote end-point.

Conditions:

When connection have high channel numbers. It was observed on conns with channel numbers greater than 256.

Workaround:

None.

CSCdx21483

Symptom:

Cellbus clock rate set incorrectly when two RPM occupy a cellbus.

Conditions:

For traffic shaping on RPM, two RPM occupying a cellbus need to have cbus clock rate set to 42MHz. In all other conditions, cbus clock rate should be 21MHz. This is manually configurable today using the cnfcbclk cli command. Need to have it automatically set.

Workaround:

Use cnfcbclk cli command to set cbus clock rate correctly.

CSCdx33333

Symptom:

RPM fails to check the health of IOS image on the MGX hard disk via "debug rpm check_image now c:<image_name>". Same command is successfully executed against the image in the bootflash.

Conditions:

This condition was observed after successfully upgrading the RPM card to internally released IOS image.

Issue "debug rpm check_image now c:<image_name>".

Workaround:

Copy the IOS image to bootflash and issue "debug rpm check_image now bootflash:<image_name>".

CSCdx45979

Symptom:

Receive "ConnPCR greater than port speed" error in attempt to adjust fstPCR on ports.

Conditions:

Error seen after removing 1 port from ima group and then attempting to adjust remaining port fstPCR from 10773 to 7182.

Workaround:

Option 1) If there is a need to delete a line from an IMA group, change the connection PCR first and then delete the ima line from the group.

Option 2) If the line has already been deleted from the ima group and now the channel PCR needs to be updated..we have to make sure that we change other parameters and they should also be below the new ima port rate( which depends on the number of lines present) This can be done by using xcnfcon like this:

xcnfcon -chn 17 -rs 3 -pcr 7182 -pcr01 7182 -mcr 7182 -pir 7182 -mir 7182 -qir 7182 the mir, qir, mcr can be set to desired values(below port rate), this is just an example.

CSCdx54888

Symptom:

The sonet line status tables are not uploaded in the PXM config file.

Conditions:

The sonet line status for section, current & path are not uploaded in the PXM config file.

Workaround:

None.

CSCdx64136

Symptom:

FRSM-2E3 card stops processing data.

Conditions:

The problem happens when ALL the following 3 conditions are met :

1. The traffic should be pumped at a rate higher than 33 Mbps (which is close to the port speed on an E3 card of 34 Mbps).

2. The frame size should be between ~ (240 - 300) bytes.

3. The frames sent out of Adtech should be test patterns only .

Workaround:

Reduce the traffic rate to 32900 Kbps.

CSCdx68356

Symptom:

Framing errors. AIS, Loss of Pattern were seen on the Test Set when one goes through the particular sequence of remote/local loopbacks.

Conditions:

Normal.

Workaround:

The preventive workaround is to make sure that the line is not in LOS before configuring a remote loop back on that line. To verify this, perform
dspalm -ds1 <line number >

CSCdx71672

Symptom:

When a customer performs a special sequence of remote loops to test the CESM unstructured circuits before provisioning CRC errors, Loss of pattern can be seen on the test sets.

Conditions:

Problem can be reproduced by putting up some remote loops using a cnfbert command.

Workaround:

Resetting the card. Change the CESM port type to Structured.

CSCdx72108

Symptom:

PXM throw an exception and then reset.

Conditions:

PXM card does not have a TBC. and trying to query the DS3 config such

as config upload or dspln.

Workaround:

None.

CSCdx83386

Symptoms:

1. RPM card will not come up with the runtime image using 12.1(5.3)T_XT boot image and 1.2.10, 1.2.02, 1.2.01 PXM images.

2. Upgrade of Latest PXM and IOS images respectively will be affected.

Conditions:

1. RPM should contain 12.1(5.3)T_XT boot image as a first file in the bootflash.

2. Load 1.2.01 or 1.2.02 or 1.2.10 PXM images.

Workaround:

Upgrade first RPM cards to the latest image and then upgrade the PXM image.

CSCdx83611

Symptom:

cell loss is observed on CESM when tstdelay/tstcon is executed.

Conditions:

Alway upon tstdelay/tstcon execution

Workaround:

None.

CSCdx88630

Symptom:

The egress OAM keep alive cells for a voice channel do not get enough bw in the egress direction on an IMA port and as a result the voice PVC goes down.

Conditions:

There is enough data traffic to starve the egress OAM queue.

Workaround:

none

Further Problem Description:

The problem is not specific to but common for IMA groups, in case of IMA groups with mulitple lines, when some of the lines go out of the group because of alarm, the port might get oversubscribed as the BW has reduced. In such cases if the data traffic takes up all the bw there is nothing left for the oam flow on the egress side on a port. This means that if there is a pvc using the end to end oam cells as keep alive cells, that PVC will be brough down by the CPE side because AUSMwill not be able to send the OAM cells for that pvc to the CPE.

CSCdx89682

Symptom:

autoClk does not change cellbus speed immediately after being enabled.

Condition:

Cellbus speed is set incorrectly before autoClk feature is enabled.

Workaround:

Reload or reseat one of the cards on the cellbus to prompt the autoClk feature to take effect.

CSCdx93715

Symptom:

foresight abr connections start dropping frames in the ingress directions.

Conditions:

frsm vhs running 10.2.01

Workaround:

downgrade to 10.0.23 version

Further Problem Description:

Upon upgrading to 10.2.01, the frsm vhs abr foresight connections starts dropping frames in the ingress. The Foresight control loop rate up cells are not acted upon properly causing the connection to never ramp up more than the qir.

Because of this, irrespective of cir, the channel will be serviced only at qir rate in the ingress direction. This causes the ingress q to overflow and hence frames gets dropped because of exceeding q depth.

This happens only to abr foresight connections.

CSCdy17992

Symptoms:

Customer is complaining about the minor alarm on the active PXM when they perform a resetcd on the standby PXM. They also see billions of LCV's in the dsplamcnt.

This symptom is different than CSCds60139 where the fix is in the PXM HW.

Conditions:

Normal Network Conditions.

Workaround:

clralmcnt will clear the errors. Also, these LCV's are bogus and not service affecting.

CSCdy33878

Symptom:

tstcon and tstdelay do not work when passing data

Conditions:

It looks like a problem with StdABR only. Problem occurs when traffic is received on StdABR connections, tstcon and tstdelay fails.

If there is no traffic receiving on StdAbr connections, then tstcon and tstdelay are passing.

Workaround:

unknown

CSCdy38334

Symptom:

The customer sees traffic stop in one direction spontaneously

Conditions:

It happens spontaneously on an FRSM 8T1E1 card on a POP1 shelf. POP1 shelf is a feeder to an MGX 2 shelf.

Workaround:

Using CWM reconfigure the CIR of the connection. Or delete and re add the PVC

Further Problem Description:

The traffic was stopping because the FRSM card was sending Abit=0 to the CPE. PXM and the other end FRSM show no failures.

CSCdy55571

Symptom:

The PCR has no impact on the data xfer for a stdabr connection.

Condition:

There is a FR-FR NIW ABR-STD PVC from local node SLOT 19 LINE 6 PORT 10 DLCI 679 to remote node SLOT 20 LINE 1 PORT 1 DLCI 679.

The configuration is CIR =1536 kBPS PCR=MCR=ICR 100 cells

The ADTECH data generator is connected to Line 6 Port 10 of local node. The other end is line looped. Customer could send /receive the traffic at 97% CIR rate (1490 Kbits) without any drops in frames/cells

The PCR has no impact on the data xfer.

Workaround:

set the channel IBS to 0.

For a stbabr connection to work properly the IBS should be set to zero.

CSCdy61568

Symptom:

DC power supply low voltage cutoff has to increase

Conditions:

Unknown

Workaround:

Unknown

Problems Fixed in Release 1.2.10

The following is the list of problems fixed in the service module firmware and the Release 1.2.10 software. Included with each is a brief discussion of the problem. A more in-depth discussion is available in the Release Note enclosure of the problem record in Bug Navigator.

Bug ID

Description

CSCds06755

Symptom:

Typo in the help for xcnfilmi command. Instead of showing command name as xcnfilmi, the command name is shown as cnfilmi.

Conditions:

Always

Workaround:

None

CSCds14597

Symptom:

The OC-12 feeder trunk is configured as 1+1 unidirectional mode on the PXM. When Agilent OmniBer 719 testset was used to inject CV-L BER on the protection line, we found deviation on both SFBER and SDBER thresholds set by cnfapsln. The SDBER was configured as 1.0E-7, but was operated at 5.1E-8. The SFBER was configured as 1.0E-3, but the was operated at 1.1E-4.

Conditions:

When APS is configured and the line has errors.

Workaround:

None

CSCds15474

Symptom:

CESM allows incorrect configuration modifications.

Conditions:

Modify the timeslot value for an unstructured port.

Workaround:

None

CSCds73028

Symptom:

After deleting the master side of the connection from the RPM there is still an assigned channel for this connection on the PXM.

Conditions:

Deleting master connection on the RPM side.

Workaround:

None

CSCdt90991

Symptom:

The command cnfextclk accepted E1 clock configuration when used to configure an external clock source on a T1 clock port. No warning was given.

Conditions:

Normal conditions.

Workaround:

Use the correct clock configuration for the external clock source port type.

CSCdu12986

Symptom:

Cannot run dsplog cli command on the card.

Conditions:

Did not quit gracefully for dsplogs command on other telnet session.

Workaround:

switchcc

CSCdu17346

Symptom:

CLI clock source commands does not return accurate information about which clock the card is currently using. It shows the card is using external while it is actually using internal.

Condition:

External clock configured for E1 but incoming external clock is 1.544 MHz T1 clock.

Workaround:

None

CSCdu49191

Symptom:

The command cnfimatst does not correctly report back the status of the link if the pattern 255 is used. It will always report "failed" even when the link is fully operational.

Conditions:

Always

Workaround:

Use data values other that 255.

CSCdu72671

Symptom:

Cannot change cell bus rate from CiscoView.

Conditions:

Always

Workaround:

Use CLI to change the cell bus rate.

CSCdu79023

Symptom:

Reset of primary PXM is allowed even if secondary card is not available.

Conditions:

always

Workaround:

Always use switchcc instead of resetcd to make sure whether the redundancy is available or not.

CSCdu80132

Symptom:

Second external clock input on UI-S3 is not available to use Need to support both primary and secondary BITS timing.

Conditions:

Always

Workaround:

None

Further Problem Description:

This is a new feature. With this, the second external clock on UI-S3 back card can be used.

CSCdu86525

Symptom:

PXM1 resets due to watchdog timeout reset.

Conditions:

Unknown.

Workaround:

None. This problem is a pure software issue and there is no need to replace hardware. PXM will reset due to watchdog timeout and come up to active/standby state.

CSCdv11015

Symptom:

No Sonet option under the xcnfalm command

Conditions:

Always

Workaround:

None

CSCdv19158

Symptom:

PXM Bootcode burn failed on the standby card with "DB table is full all 20 entries used" logged.

Conditions:

Unknown. However, user should avoid using Ctrl-C during saveallcnf/savesmcnf.

Workaround:

switchcc

CSCdv28342

Symptom:

When you add an incomplete connection from FRSM to PXM with VCI = 0, it's shown as ok.

Conditions:

Adding an incomplete connection using VCI=0.

Workaround:

Use non-zero VCI.

CSCdv38913

Symptom:

Need to discontinue the MIB version# shown in dspcd on PXM.

Conditions:

Always

Workaround:

None

Further Problem Description:

For further details, refer to MIB release notes.

CSCdv48510

Symptom:

1) active core card set SRM showing "mismatch" because of missing back card

2) standby core card set PXM showing "mismatch" because it has SRM card

3) unable to switchcc because core card set not available

4) after inserting the SRM backcard, get message "PXM Switchover for SRM Failure" on the active PXM but it does not switch.

Condition:

Pull out standby SRM back card.

Workaround:

Insert standby SRM back card.

CSCdv54796

Symptom:

The downloaded information from the switch shows the backcard as removed even if it is not present.

Conditions:

When the back card of an ausm-8t1e1 is removed.

Workaround:

None

CSCdv56773

Symptom:

Command line is hung issuing display requests. Customer experienced hung Command Line Interface and could not issue any normal display requests.

Commands such as dspcds, dspcons or dspalms, which have more than one page output, would cause the CLI to hang.

Conditions:

A command with multiple page output was issued and when it prompts for <Return> or `Q', no input was given and the telnet session was left idle.

Workaround:

Switchcc

Further Problem Description:

The fix basically makes the CLI to timeout if user doesn't specify the input in 30 seconds. It applies to prompts like: Type <CR> to continue, Q<CR> to stop: and also: Do you want to proceed (Yes/No)?

CSCdv62107

Symptom:

Unknown line number sent by switch for PXM-OC12.

Conditions:

When PXM-OC12 is used.

Workaround:

None

CSCdv79466

Symptom:

Sometimes oldiag fails on standby PXM. Node will be placed in major alarm due to the standby PXM oldiag failure.

Conditions:

oldiag fails attempting ipc with the standby PXM.

Workaround:

None

CSCdv81736

Symptom:

SM Card seen to reset continuously.

Conditions:

Previously saved PRI File downloaded to the switch. Connections provisioned after this.

Workaround:

Reset the card after the PRI file download.

CSCdv89742

Symptom:

clralmcnt <CmdArg>-ds3<noCmdArg> does not clear the counters for the SRM.

Conditions:

Always

Workaround:

Use clralms <CmdArg>-ds3<noCmdArg>.

CSCdw01992

Symptom:

PXM spontaneously switched over. The following error messages scrolled across the screen

################################### ###### SYSTEM ERROR 20182 -426933 2025115134 50338856 -2029099400 ################################### vsim fatal: can't get message buffer

Conditions:

Flapping DS3 lines on SM/SRM, which can cause buffer depletion on controller card.

Workaround:

Clear the alarm or add loopback on the line.

CSCdw02483

Symptom:

Couldn't add maximum number of connections on FRSM-HS2/B card under certain conditions.

Conditions:

Unknown

Workaround:

None

CSCdw03604

Symptom:

Inconsistency in databases on CESM-T3/E3. The lines, ports and connections remains out of alarm. But one of the cards remains in major alarm.

Conditions:

Master connection is added before adding the slave connection.

Workaround:

Add the slave connection before adding the master connection.

CSCdw05153

Symptom:

Stats file only contains header. No data is actually lost. The same file becomes available within 2 minutes 40 seconds, even on a maxed out shelf.

Conditions:

Stats file is requested immediately after the expiration of the interval.

Workaround:

Collect Statistics about 3 minutes after the interval expires, or, reduce the number of items that stats collection is enabled for.

CSCdw09468

Symptom:

When dsperr with page mode off after an interval the PXM switches over

Conditions:

Issue dsperr command pagemode off.

Workaround:

Before issung dsperr, make sure that pagemode is ON by issuing pagemode. If it's OFF, use pagemode ON command.

CSCdw10286

Symptom:

CESM T3E3 card goes into Major alarm after addcon CLI is executed with the slave parameter.

Conditions:

Execute CLI addcon 1 2 on the CESM T3E3 card

Workaround:

None.

CSCdw13465

Symptom :

The config file of 8850 contains incorrect information for SRM. The card information table of SRM is replaced by the card information table of PXM

Conditions:

Not known.

Workaround :

None

CSCdw18114

Symptom:

Port LED blanks out when 'runslftstno 6' is entered. Port LED blanks out, Line/Port/Channel configuration disappear and DATA stops when runslftst no 8 is entered.

Conditions:

Normal

Workaround:

None

CSCdw20626

Symptom:

T3E3 card does not show card minor alarm when connection is in alarm because of cell loss.

Conditions:

Cell Loss alarm on a connection. This can be caused as a result of:
1. A bit alarm on a connection
2. Errors in the transmission of the data.

Workaround:

None

CSCdw26129

Symptom:

When the redundant card fails, no trap gets generated.

Conditions:

Always

Workaround:

None

CSCdw34721

Symptom:

RcvRAI count does not increment in dspalmcnt for SRM DS3

Conditions:

When the SRM DS3 line is receiving RAI.

Workaround:

None.

CSCdw37004

Symptom:

Cannot ping IPV6 address accross an FR link on FRSM card.

FRSM does not respond to IPv6 packets.

Conditions:

Unknown

Workaround:

None.

CSCdw40834

Symptom:

SNMP traps are sent from the PXM to management station indicating a DS3 alarm on the SRM of the MGX8250/8850. When checking via CLI command dspalmcnt there are no alarm counters incremented. In the PXM log, viewed via dsplog there is an entry similar for: VSIS_TRAP: DS3 Minor Alarm hence not reporting 805371649

Conditions:

This has been seen when using the DS3 lines on the SRM.

Workaround:

None

CSCdw42720

Symptom:

Repeated add/Del channels on cesm-8t1e1 causes card to reset .

Conditions:

Repeated add and delete channels on cesm-8t1e1

Workaround:

None.

CSCdw47655

Symptom:

PXM1 report major alarm if DC is missing.

Condition:

Always.

Workaround:

1) on the card, do a dsppostresults, make sure framer test is the only one that is failing.

2) confirm that the customer do not have a DC card

3) on the pxm, do following: shellConn clrPostAlarm

CSCdw65157

Symptom:

Channel state inconsistency between CPE and the FRSM card

Conditions:

SIW(service interworking) connection between BXP and FRSM on MGX8220 feeder. RDI alarm generated in ATM network. Traffic load is none or normal.

Workaround:

None

Further Problem Description:</B>

The RDI (Remote defective identifier) coming from the ATM network by a Service Interworking connection, is not correctly mapped into a-bit on the Frame Relay side(AXIS - FRSM card) of the same connection. Therefore, the Frame Relay CPE won't be able to detect this far end failure.

CSCdw65398

Symptom:

Inconsistency in the channel states between the CPE and the FRSM

Conditions:

SIW(service interworking) connection between BXP and FRSM on MGX8220 feeder. RDI alarm generated in ATM network. Traffic load is none or normal.

Workaround:

None

Further Problem Description:

The RDI (Remote defective identifier) coming from the ATM network by a Service Interworking connection, is not correctly mapped into a-bit on the Frame Relay side(AXIS - FRSM card) of the same connection. Therefore, the Frame Relay CPE won't be able to detect this far end failure.

CSCdw66303

Symptom:

MGX 1 stops providing backplane clock to the SM and this causes CESM card to rebuild itself.

Conditions:

Happens when the UI-S3 backcard is pulled out with the current clock level configured as Stratum 3.

Workaround:

Perform a switchcc and the make the current PXM standby before pulling out the the UI-S3 backcard.

CSCdw69926

Symptom:

MGX1 does not use the inband clock reference when the clock level is Stratum 3.

Conditions:

PXM should have a UI-S3 backcard and the current clock source is inband from the feeder trunk. The clock level should be Stratum 3.

Workaround:

If inband clocking is needed in Stratum 3 level with UIS3, following workaround should be applied in the sequence given below:

1> Manually drop the clock level to S4: cnfclklevel 4

2> Configure the clocksource as inband: cnfclksrc 7.1 p

3> Jump the clock level to S3: cnfclklevel 3

4> Reconfigure the inband clock source: cnfclksrc 7.1 n cnfclksrc 7.1 p

CSCdw69982

Symptom:

FRSM-8E1 keeps resetting.

Condition:

When more than 189 ports are enabled on the card and all port and channel statistics are enabled with the peak enabled flag set.

Workaround:

Enable fewer channel/port stats for the card.

CSCdw70376

Symptom:

tftp of the config file by the CWM from the RPM-PR card takes a long time

Conditions:

Happens under all conditions

Workaround:

An alternate method to do tftp fetches the file successfully.

The steps are as follows bodc-xdm1% tftp mig1pop1 tftp> bin tftp> trace Packet tracing on. tftp> get RPM/auto_config_slot03.

CSCdw70652

Symptom:

When new connections are added on a Channelized E1 line/port, bit Errors will be logged on a BERT Tester connecting to the same line on a DAX connection.

Conditions:

Adding/deleting connections on the line will cause the problem regardless if it has been added via CWM or CLI

Workaround:

None

CSCdw73702

Symptom:

1+1 OC12 APS configured; WLine in alarm, Forced switchaps P->WLine failed.

Conditions:

1. 1+1 OC12 APS connected to AXSM/B cards with Bi-dir & Revert mode.

2. Removed WL-Rx line from AXSM/B end.

3. Issued Forced Switchaps P->WLine from PXM1 end.

Workaround:

Do Forced Switchaps from AXSM/B end.

CSCdw73786

Symptom:

Standby PXM reset with core dump.

Conditions:

Unknown

Workaround:

None

CSCdw76794

Symptom:

Sonet Line reports receiving RDI even after the physical cable is reconnected

Conditions:

PXM ver: 1.1.40 Insert the Rx End before the Tx end.

Workaround:

switchcc clears the anomaly if there are no ports (or connections) on this line, delln and addln will work

CSCdw84584

Symptom:

Manually switch from a protect line to a working line results in unexpected MS response and is preceeded by an "Unexpected request [DO NOT REVERT]" message followed by several APS_PLINE_FAILU and APS_PLINE_CLEAR messages.

Conditions:

Configure 1+1 APS bi-directional APS, and perform manual switch from a protect line to a working line.

Workaround:

Unknown.

CSCdw86752

Symptom:

Upgrade of AUSM card with IMA ports cause database inconsistency

Conditions:

1. AUSM card with IMA ports

2. PXM version is lower than 1.2.10 3. upgrade AUSM

Workaround:

Cisco upgrade script

CSCdw89912

Symptom:

CESM-8T1E1 comes up as failed after it boots up.

Conditions:

This occurs after the shelf on which the card is present, is powercycled. This behaviour is intermittent.

Workaround:

Reset the card which is stuck in the failed state.

CSCdw90917

Symptom:

Users in user groups lower than super user are able to run this cmd clrallcnf.

Conditions:

always

Workaround:

None.

Further Problem Description:

Other commands that changed to superuser access level are:

clrsmcnf - from group3

resetcd - from group3

resetsys - from group3

Other commands that changed to group1 access level are:

switchcc - from group3

clrerr - from anyuser

CSCdx07493

Symptom:

The DE-CLP, FECN-EFCI mappings and the RM cell generation are working as required. But some customer require the mappings to be enabled for stdAbr connection even though the standard does not allow it. Hence making the mapping for stdAbr configurable. The default is as it was, no mapping

Conditions:

The DE-CLP, FECN-EFCI mappings for stdAbr connections

Workaround:

None

Further Problem Description:

The DE-CLP and the FECN-EFCI mapping is not supported for stdABR connections as per the standards. But since there is a need for some customers we are making the DE-CLP and FECN-EFCI mapping and the generation of the RM Cell configurable.

CSCdx16508

Symptom:

The throughput of the FRSM-2ct3 card degrades to 50%.

Conditions:

There are multiple conditions to be met for the performance to degrade. And all the conditions have to be met simultaneously. The conditions are

1. Bidirectional traffic on the port.

2. The ingress traffic should be greater than 75% of the T3 rate.

3. The egress traffic should be much greater than the T3 rate

4. The connection is a SIW-x connection

5. The egress port servicing is Weighted Fairness Queuing

6. The AAL5 frame length in the egress direction should be 86-88 bytes

Workaround:

1. To avoid the problem use Ratio Based Egress Port Servicing instead of Weighted Fairness Queuing.

2. If the throughput has degraded the card must be reset.

CSCdx32909

Symptom:

The port on the CESM card remains active.

Conditions:

The line is failed due to reasons other than Loss Of Signal or Loss Of Frame. Examples of these other line alarms are recieve AIS, recieve RDI, etc.

Workaround:

None.

CSCdx34587

Symptom:

Shelf is unreacheable, no traffic is passed.

Conditions:

1. Shelf has to reset ungracefully. A window of 20 secs between the 2 pxm resets. 2. Do a switchcc after the shelf has recovered.

Workaround:

Execute another switchcc.

Further Problem Description:

After an ungracefull shelf reset (i.e other than resetsys) and when the window between the two pxm resets is 20 secs, the line driver in the newly standby card is not properly initialized. Due to this, When a switchcc is done after the shelf has recovered, "Unreachability" will be seen on the bpx. No traffic will be passing from the network into the shelf.

To identify this situation

1. verify there are no line alarms.

2. use the cli dspatmlncnt <line_no>. Do this cli for a couple of times and see whether the receive cell count is incrementing.

3. do tstcon for a couple of channels that were previously OK.

If the output doesn't increase and tstcons fail, then we have fallen into this situation. To recover from this situation gracefully, wait for the stdby pxm to come up standby and do a switchcc.

CSCdx48937

Symptom:

ICR doesn't get configured properly when the tbe value is huge.

Conditions:

StdABR connections with non-zero values of tbe and frtt.

Workaround:

None.

Problems Fixed in Release 1.2.02

The following is the list of problems fixed in the service module firmware and the Release 1.2.02 software. Included with each is a brief discussion of the problem. A more in-depth discussion is available in the Release Note enclosure of the problem record in Bug Navigator.

Bug ID

Description

CSCdx06855

Symptoms:

Configuration is getting corrupted after wr mem in 12.2(4)T to T3 images.

Conditions:

When wr mem is performed, using copy <src> <dst>.

If <src> is running configuration and <dst> is PXM disk, the corruption will occur.

If <src> is running configuration and <dst> is other than PXM disk, corruption will not occur.

Workaround:

Instead of using wr mem, the following 2 steps are the procedure to save configuration properly on the PXM disk.

1. issue " copy run bootflash:<dummy-file>"

We recommend the dummy-file is named "start-up" to make it more readable. Since we are not writing to the disk, the tag is not added.

2. issue "copy bootflash:<dummy-file> start"

Since we are saving a file from bootflash to the start-up, this works fine too.

Additional Information:

Note, the problem is seen with 1.2.01 and IOS versions 12.2(4)T3 or lower only. The problem is not seen with MGX 1.2.00 or lower.

CSCdx14043

Symptom:

While upgrading AUSM service module firmwares, some of the connections go in to inconsistent state.

Conditions:

1. Ausm upgrade with change in the mib. 2. have a mix of ima ports and ausm ports and channels existing on both of them. 3. pxm fw 1.1.41/1.2.00 or earlier.

Workaround:

delete and re add the inconsistent connections. If there are too many connections contact Cisco for support.

Further Problem Description:

While upgrading an AUSM firmware from one version to later version having a mib change and have ima ports and ausm ports, the connections go inconsistent. After the upgrade, the chkslotcon <slotno> would show inconsistent connections.

Though the connections are inconsistent, the hardware is still programmed and there wouldnt be any traffic impact as long as the pxm doesnt switch over.

The hardware programming will be lost when the pxm switchover happens.

Problems Fixed in Release 1.2.01

The following is the list of problems fixed in the service module firmware and the Release 1.2.01 software. Included with each is a brief discussion of the problem. A more in-depth discussion is available in the Release Note enclosure of the problem record in Bug Navigator.

Note Due to CSCdx06855, MGX 1.2.01 is no longer generally available and has been deferred. This DDTS has been resolved in MGX 1.2.02.

Bug ID

Description

CSCds25917

Symptom:

The xdspsrmlink cli command does not output an error message when no argument is given for the command.

Conditions:

Whenever xdspsrmlink is executed without any arguments.

Workaround:

No workaround.

Further Problem Description:

xdspsrmlink command is not displaying error messages properly when it is called from the cli prompt without any arguments. The command instead prints that the table is empty, even when the table is not empty.

CSCdu54875

Symptom:

xcnfchan doesn't change the service rate after upgrading to 1.1.34

Conditions:

For Connections created in 1.1.2x This happens because the ChanServiceRateOverride and the ChanServiceRate was not initialized after the upgrade. This caused the mir,qir,pir to be calculated based on the ChanServiceRate (which was 0).

Workaround:

Configure the ChanServiceRateOverride to the default value (disabled) using either

cnfchansrvrate <channel no> 2 <chan service rate>

or

xcnfchan -chn <chan no.> -en 3 -srvovrd 2

CSCdv15625

Symptom:

Addlnloop on the srme card did not get the expected result.

Conditions:

•add line on srme oc3 card, addlnlloop on the srme line

•add a line in one of the SM's say FRSM on slot 1 line 1

•addlink between slot1 line 1 to srme line. we can see that the line is still in alarm

Workaround:

The problem is because of hardware limitation. Supermapper chip has a version 2.0 which does not support the addlnloop. The newer version i.e. 2.1 or above supports addlnloop command. If we upgrade the supermapper to newer version then we should not see this problem.

CSCdv50663

Symptom:

tstdelay at pop2/axsme failed across an XPVC with axsme and frsm-8t1 endpoints

Conditions:

tstdelay started from axsm-e of an XPVC which has pop2/axsme and pop1/frsm-8t1 a tstdelay initiated from frsm-8t1 end works fine

Workaround:

none

CSCdv62135

Symptom:

bootChange command should have password authentication.

Conditions:

This applies to all existing PXM versions.

Workaround:

None

CSCdv66013

Symptom:

Configuration of the APS line goes through even though the line has not been enabled for APS.

Conditions:

The happens on a line on which APS has already been enabled and disabled. Once in the disabled state the APS parameters can be configured without enabling the line for APS

Workaround:

Configure the APS parameters only after enabling the line for APS.

CSCdv73162

Symptom:

Table Load exception error while resetting PXM using ctrl-x

Conditions:

During resetting a PXM using ctrl-x from console.

Workaround:

None.

CSCdv76409

Symptom:

abrfst pvc's on AUSM not rating down to MCR when run over congested BXM

Conditions:

Lab environment. Manufactured congestion.

Workaround:

Configure IBS = 0

CSCdw02677

Symptom:

FRSM-2CT3 keeps resetting on a certain enable.stats file.

Condition:

When there are more than a hundred ports and all port statistics are enabled with the peak enabled flag set.

Workaround:

Disable the new stats ID 25, 27,28

CSCdw08896

Symptom:

Node went unreachable, could not execute dsptrks, dcondb 4 3. Could execute dspchans, and dsptotals

Conditions:

At the point in time when the Node went unreachable, the logs did not have any obvious indication that LMI task failed.

Workaround:

No workaround was required, as 11 mins later, the cards (PXM) switched over automatically, restoring service.

CSCdw09173

Symptom:

Channel state on the CWM GUI is inconsistent with that of the switch

Conditions:

It happens under the following sequence of events - Channel fails due to Abit alarm - Port for that channel fails - Port for that channel clears

Workaround:

None

Further Description:

When the above mentioned conditions happen then the CWM database will show the connection state as OK instead of Fail as in the switch. To circumvent this problem, with the current implementation of CWM, the switch needs to send channel traps for all the failed channels once the port comes up.

CSCdw09742

Symptom:

AUSM channels experiencing EgressPortQ discard after a switchcc.

Conditions:

The channels experiencing the problem is on a line using bulk distribution The line is configured as LoopTiming

Workaround:

Reset the AUSM card.

CSCdw11628

Symptom:

Async updates are not sent out under certain conditions.

Conditions:

When both async updates and full updates are enabled.

Workaround:

Only async updates should be enabled.

CSCdw11644

Symptom:

Frames shown to be tagged DE on a non tagging connection

Conditions:

traffic more than CIR and CLP to De mapping ignored.

Workaround:

This is a display problem, frames are not being tagged.

CSCdw23460

Symptom:

Softswitch sometimes disturbs traffic flow.

Conditions:

1. 1:N Redundancy

2. The secondary card had some configuration before being configured to secondary.

Workaround:

Before configuring a card to be the secondary card for 1:N redundancy, make sure that it does not have any configuration. Do a clrsmcnf for the card if it does have any configuration.

CSCdw33698

Symptom:

The immediate symptom is that an MGX-8250 is not discovered from CWM. Even if telnet access to the switch exists, and pings are replied, snmp packets are not.

Conditions:

The CWM station (or workstation origination snmp packets) has a different subnet mask than the MGX Switch, doing VLSM. CWM and MGX are not in the same ethernet segment.

Workaround:

Change the subnet mask so that they match. Modify the subnet mask in the MGX-8250.

Further Problem Description:

The problem can be seen in situations such as this:

CWM 192.168.100.79/24 | Router | MGX-8250 192.168.101.70/28

The MGX Switch mistakes the source IP Address for a broadcast address and therefore does not reply.

CSCdw34701

Symptom:

The SRM DS3 line alarm logs are not detailed

Conditions:

When there is a alarm on the DS3

Workaround:

None

CSCdw40773

Symptom:

In 1+1 APS, the channel number is incorrect for WTR and DNR after SD clears on working line.

Conditions:

Configure 1+1 APS and create SD condition on working line, then clear the SD condition.

Workaround:

None.

CSCdw41946

Symptom:

Loss of RPM configuration.

Condition:

The auto_config_slot<x> file size is set to zero resulting in an invalid con- figuration.

Workaround:

UNKNOWN

CSCdw47936

Symptom:

cnfapsln does not send out trap 50613

Conditions:

trying to configure APS

Workaorund:

none

CSCdw47943

Symptom:

Configure upload file contains incomplete APS information

Conditions:

Always

Workaround:

none

CSCdw53351

Symptom:

DE-CLP and FECN-EFCI mapping doesn't work properly for some configurations.

Conditions:

StdABR connection on a FRSM-8t1e1

Workaround:

None.

CSCdw54609

Symptom:

APS on a PXM1 line can not be added via SNMP, after a resetsys, unless the APS is added and deleted via CLI first.

Conditions:

Any PXM1 hardware running MGX Release 1.1.x or 1.2.01 and below.

Workaround:

Add and delete the APS via CLI for the first time. Subsequent provisioning via SNMP will then work. This has to be done on each line.

CSCdw55029

Symptom:

Failed to CC to RPM card

Conditions:

Added sub interfaces and connection using scripts.

Workaround:

switchcc

CSCdw56886

An error can occur with management protocol processing. Please use the following URL for further information:

http://www.cisco.com/cgi-bin/bugtool/onebug.pl?bugid=CSCdw65903

CSCdw66418

Symptom:

delapsln trap contains a wrong slot number of 0

Conditions:

Always

Workaround:

None

CSCdw68321

Symptom:

default value of lineClockType for a HSSI interface of HS2/HS2B is NonInvertedAndLooped instead of NonInvertedAndNotLooped

Conditions:

Always

Workaround:

None

Problems Fixed in Release 1.2.00

The following is the list of problems fixed in the service module firmware and the Release 1.2.00 software. Included with each is a brief discussion of the problem. A more in-depth discussion is available in the Release Note enclosure of the problem record in Bug Navigator.
Bug ID

Description

CSCdr61328

Symptom:

The delete bit is not set in the Async Lmi Packet when a connection is deleted.

Conditions:

The delete bit in the Annex-A/Annex-D has been masked hence the delete bit is not set in the Async Lmi Packet when a connection is deleted.

Workaround:

None.

Further Explanation: Scenario: 1. Configure a port with PVC Asynchronous Status Report enable. 2. Add a PVC. 3. Delete the PVC.

Problem: 1. The "Delete bit" in the PVC IE is not turned on.

CSCdr88604

Symptom:

The alarm on SRM lines are not getting updated. Even when the line is deleted the alarms exist.

Conditions:

Workaround:

Do clralm on the deleted line which has the alarms.

CSCds01403

Symptom:

There is a mismatch in usage syntax in dspportq.

Conditions:

When execute the dspportq without parameters and with non-numeric characters.

Workaround:

None.

CSCds02030

Symptom:

cnfcon and xcnfcon allows mcr value = 0, which is different from given syntax.

Condition: When execute cnfcon and xcnfcon with mcr = 0.

Workaround:

None.

CSCds05040

Symptom:

The major alarm LED on the active and the standby PXM on MGX8850 are on, while the CLI commands do not show any indication of alarm.

Conditions:

If the SRM backcard in the redundant core card set is removed and reinserted, the alarms on the shelf will be clear, but the MAJ alarm LED alone will be left turned on.

Workaround:

Perform switchcc to clear the LED.

CSCds07944

Symptom:

clralmcnt -ds3 does not clear the counters.

Conditions:

Workaround:

Use clralms -ds3

Further Problem Description:

CSCds10270

Symptom:

When a OC-12 feeder trunk is configured as 1+1 unidirectional mode, the PXM-622 OC-12 line on slot 7.1 of peartx40 MGX node did not have the option in specifying whether the "working" or "protection" line would be applied upon an external request such as "Manual Switch" and "Forced Switch". This will prevent the capability to allow a user to change a request from "MS: W->P" to "FS: W->P" directly. The options allowed under the "switchapsln" command are listed as below:

Conditions:

With APS configured and trying to do switchapsln.

Workaround:

None

Further Problem Description:

None

CSCds21131

Symptom:

The LineOOFCriteria on a PXM card with DS3 daughter card shows "fBitsOf16" when configured for "fBits3Of16".

Conditions:

Applies to PXM with T3 trunk module.

Workaround:

None.

CSCds26477

Symptom:

Displays wrong Front card description for CESM T3/E3 cards.

Conditions:

For CESM T3/E3 card, Cisco View displays wrong description for front card description field.

Workaround:

No workaround.

CSCds27547

Symptom:

The BERT test were running on two Service modules: one in the upper bay of the Popeye node and one in the lower bay of the popeye node but dspbert was displaying only one of them. Once the BERT was deleted on that slot, then only dspbert showed that the BERT is running on the other slot.

Conditions:

Workaround:

Use dspbert <second slot#> to verify whether the BERT is running on the second slot or not.

CSCds29448

Symptom:

The line status for disabled lines in line table shows inconsistent in database.

Conditions:

This happens when repeated queries are being done on the switch for line alarm_state from the CWM workstation.

Workaround:

Under investigation.

CSCds34186

Symptom:

LMI is not functioning as per requirement for FUNI.

Also, attempting to configure LMI for a FrFowarding port is not allowed but the error message is somewhat confusing.

Conditions:

Whenever LMI is configured for FUNI.

Workaround:

Under Investigation.

CSCds37553

Symptom:

Port shows ILMI failure though there is no failure.

Condition:

Happens on 5.x firmware with version 5.0.12

Workaround:

Card reset or softswitch clears this problem.

CSCds38145

Symptom:

Lmi debugging facilities to be ported from AXIS.

Conditions:

Not applicable

Workaround:

Not applicable

Further Problem Description:

The LMI debugging facilities provided in the FRSM_HS1 of AXIS is to be ported to POPEYE branch.

CSCds38166

Symptom:

On PXM with Stratum-3 backcard (UI-S3), the external clock src, configured as E1, seems to revert to T1 after a switchcc. The dspclkinfo command output says it is a T1 clock. ***APPLIES to UI-S3 backcards _and_ the external clock source of E1 only.

Conditions:

No service impact. Display is wrong. The clock source is still external and E1. However, the workaround MUST be implemented to after every switchcc to make sure there is no further service impact after subsequent switchcc's.

Workaround:

After every switchcc, execute the command: cnfextclk 2 This will update the necessary fields, correct the dspclkinfo output, and prepare the shelf for subsequent swithcc operations.

Further Problem Description:

1) The bug only effects Stratum-3 backcards. 1) The bug is not service effecting (display issue) 2) a workaround exists 3) there are indirect indicators that show the actual state of the clock source.

Here is a brief description: Synopsis: CSCds38166 -- External clock cnf of E1 lost on switchcc In reality, the logic that reads the HW registers and displays the output of the dspclkinfo command is flawed. Root cause: Actually, what happens is, the field that determines the value of the clock input jack is used to determine whether the source is an E1 or a T1 clock. This works fine for Stratum-4 backcards, but for Stratum-3 backcards, the same input is used for T1 and E1, so the logic defaults the display to t1. The clock source is still external clock, and no service is impacted.

Impact:

After the first switchcc, there is no service impact. However, there is a danger for a subsequent switchback: Since once the field is wrongly updated to "t1", on switchcc, the PXM that takes over will try to find a T1 clock input, and will fail, switching to internal clock.

Workaround: After every switchcc, login to the shelf and do a:"cnfextclk 2". This will cause all fields to get updated correctly, and will enable a subsequent switchcc to not lose external E1 clock. This command will also straighten out the display of the command dspclkinfo.

CSCds48471

Symptom:

When an IMA port and ATM port are added in a AUSM card and ILMI is enabled on both, after ILMI failure clears, dspcd still shows Minor alarm with PORT ILMI fail.

Condition:

Happens on 5.0.13 AUSM firmware.

Workaround:

Execute find_out_port_fail_for_shelf_alarm under shellConn in AUSM. This will clear the problem.

CSCds58040

Symptom:

Cannot login into 8250 using a newly created userid.

Conditions:

In 8250 releases 1.1.30 to 1.1.32, new user account is created with adduser CLI and subsequent xcnfuser CLI.

Workaround:

Create the new user account with adduser CLI. Then before the xcnfuser CLI is used for the newly created account, login using the new account from another terminal and logout.

CSCds67365

Symptom

These bug is opened to resolve the warnings reported by a code coverage tool PREfix. The warnings reported include "uninitialized variables" etc. Hence the symptom for this bug is unknown.

Conditions

Normal working conditions

Workaround

None.

CSCds77223

Symptom:

Changing the ingressq to the minimum value of 4510 on a FRSM card causes all traffic to be discarded. This occurred on 1.1.23 and 1.1.31.

Conditions:

Change of ingressq to the minimum value of 4510

Workaround:

Changing the minimum ingressq to 4511 fixes the problem.

CSCds81198

Symptom:

dspcons display on FRSMHS1B is not aligned starting from channel field

Conditions:

addcon on FRSMHS1B on POP1/1.1.32 then run dspcons

Workaround:

None.

CSCds87189

Symptom

RcvLOS count toggles between 0 and 252.

Conditions

When executing addds1loop/delds1loop.

Workaround

None.

Further Problem Description

None.

CSCds90673

Symptom:

The card is in Bulk Mode Now as the SRM Line is in alarm the line/port/connection are also in alarm. Now if we reset the card, the line/connection are still in alarm as expected but the port i

Conditions:

When the card is put in Bulk Mode & then a reset card is done.

Workaround:

Problem under investigation.

CSCds91080

Symptoms;

The command addport with wrong port type causes Data Bus Error

Condition:

The command addport on frsmhs1b using wrong port type (other value than 1 or 2 or 3).

Workaround:

Use only valid port type values (1, 2 & 3)

CSCdt05984

Symptom:

The command xcnfchan does not display the setup options correctly

Conditions:

xcnfchan command on FRSM3T3

Workaround:

None.

CSCdt18908

Symptom:

The command dspcons on FRSM-2T3 increments ChanNumNextAvailable field and skips 1 channel when adding next connection.

Conditions:

Issue addcon command and monitor ChanNextNumAvailable field.

Workaround:

None.

CSCdt19174

Symptom:

dspcons increments ChanNextNumavailable field and hence addcon skips next channel number by one.

Conditions:

When adding connections and using dspcons.

Workaround:

None.

CSCdt19187

Symptom:

dspcons or dspchans increments the LocalVpIdNextAvailable by 2.

Conditions:

When performing dspcons/dspchans.

Workaround:

None. Not Service Impacting.

CSCdt28566

Symptom:

Frames are getting dropped due to port queue overflow without any frames being tagged on the egress direction. dspchanct for the channel would show increasing values for FramesDiscarded count and FramesByteDiscarded in the Tx direction. dspportcnt for the port would show increasing values for XmtFramesDiscXceedQDepth and XmtBytesDiscXceedQDepth in Tx direction.

Conditions:

This occurs when the Queue threshold for the port is configured very low.

Workaround:

use cnfegrq cli to configure the queue threshold accordingly. Note that in case of Ratio Based Servicing, the queue number of high priority is 1 and low priority is 2. In case of WFQ use the class of service index to refer to the queue number.

Verify that the values are set properly using the shellConn command "eseQueInfoShow" This command takes two parameters, the port number and the queue number.

After setting the threshold to proper values, reset the card to get the changes into effect.

Further Problem Description:

The cnfegrq does not update the cached copy of the port queue thresholds. Hence reset is necessary to get the configuration into effect. More over, dspegrq clis should be unblocked to make it available irrespective of the type of servicing algorithm used in the card. Also, the cnfegrq should be fixed to update the cached data structure and display proper queue numbers to use during different servicing algorithms.

CSCdt40267

Symptom:

CAC override is not sent to the CWM in the config upload file

Condition:

This parameter is not included in the config upload files.

Workaround:

No work around till the CAC override parameter is added to the config upload file. This has been added to the config upload file to fix this bug.

CSCdt43225

Symptom:

Some channels are stuck in alarm. dspchancnt shows that the channels are receiving OAM AIS, but dspsarcnt does not show that OAM AIS is received. The far end is not sending OAM AIS either.

Conditions:

This problem happened when the CPE equipment was connected to the port.

Workaround:

Fail the port and recover it (by changing the port signalling).

CSCdt45615

Symptom:

Misleading log message when back card is missing.

Conditions:

When Backcard is missing.

Workaround:

None.

CSCdt76729

Symptom:

Remote Loopback operation is not blocked by CiscoView on a AUSM 8T1 line. There will be no traffic continuity on the line after a remote loopback is added and removed.Conditions:

Add a remote loopback on AUSM8T1 and remove it. Data continuity is lost.

Workaround:

Workaround is after adding and removing the remote loopback on the AUSM line one has to add and remove a local loop on that line again through CiscoView

CSCdt87411

Symptom:

With an MGX configured and connected to an External clock source it has been observed that on a switchcc the newly active PXM fails the external clock and switches to internal for up to 10 seconds.

This is a problem as it causes errors on 64K unrestricted data calls and could also cause problems on high speed modem calls.

Conditions:

External clock configured on the node.

Workaround:

None.

CSCdt90660

Symptom:

The FRSM-VHS card goes to failed state and after Redundant card takes over all lines go into alarm.

Conditions:

Trunk errors on the BPX trunk through the failed card has connections routed through.

Workaround:

Reset the Failed VHS card.

CSCdu00363

Symptom:

Connections shows invalid PCR after deleting links from ima grp.

Conditions:

When you have connections configured under an ima group & then you try to delete few links from the existing ima group by executing CLI: dellnsfmaimgrp.

Workaround:

None.

CSCdu02695

Symptom:

When MGX is running on external clock and SM lines are set to local timing, we intermittently see slips on attached device interface even though both the attached device and the MGX show they are both taking clock from the same external source.

Conditions:

This happens when external clock is the current clock for the node.

Workaround:

If the external clock is disconnected and reconnected from the Active PXM UI card, the clock slips then stop and all is OK.

CSCdu03185

Symptom:

Allowing more than expected CLP1 cells into the network by the policing function on VBR.2 (rt/nrt) connections on AUSM 8T1.

Condition:

This could potentially lead to network congestion.

Workaround:

Unknown.

CSCdu06781

Symptom:

Back-to-back forced/manual (W->P followed by P->W) switch was permitted when the latter external user request is initiated from the remote end.

Condition:

Check for remote request of equal priority is not in place.

Workaround:

None.

CSCdu12589

Symptom:

The value of the varbind 'sonetLineCurrentStatus' is not consistent in the sonet line traps: 50108 (line alarm trap) and 50109 (line no alarm trap)

Conditions:

When the sonet line on PXM goes in and out of alarm

Workaround:

None.

Further Problem Description:

Till now, CWM was just looking at the value of this varbind 'sonetLineCurrentStatus' to decide whether to put the lines into alarm or not irrespective of the trap no. So because of this inconsistent definitions, sometimes it use to put the connections in alarm even after receiving 50109. Now it has been agreed that they will make this decision based on the trap no rather than the varbind value. Once that is done, the impact of this issue will become less.

CSCdu14185

Symptom:

Unable to add RPM connection

Conditions:

Condition was caused by using CM and adding the ATM(RPM) to ATM(RPM) connection from mgx8250 to mgx8230 and the error was: Connection add request to PXM failed.

Workaround:

Using CM to add 3-segment connection: ATM(RPM) - ATM(RPM).

CSCdu17049

Symptom:

On an MGX 8250 running version 1.1.25, if an addcon is done on an RPM and the remote end of the connection is on port 256 of a FRSM-2CT3, the command is rejected with the following message "Error:addcon:0:Connection add request to PXM failed". If an attempt is made to add a connection from the RPM to a port numbered 255 or lower, the connection is added. If an attempt is made to add a connection from another module (e.g. AUSM) to port 256 on the FRSM, the connection is added. This problem is reproducible in version 1.1.32.

Conditions:

Connection is provisioned from RPM to FRSM-2CT3 with the port number on the FRSM as 256.

Workaround:

The current workaround is to use a port number less than 256 when adding connections between the FRSM-2CT3 and the RMP.

CSCdu17838

Symptom:

Line alarms clear after a card reset if lines are connected back to back on the same card.

Conditions:

Only when 2 lines on the same card are connected back to back.

Workaround:

Up the other side of the lines (and delete it).

CSCdu21136

Symptom:

Channels do not come up to the active state.

Conditions:

After a softswitch is done between slots 22, and 30, then a switchcc.

Workarounds:

Do a second switchcc, and the channels come up to the active state. Increase the value of gu32TimeoutValue to 500 in shellConn on the AUSM before doing a switchcc.

Further Problem Description:

The problem happens because of management buffer depletion causing the IMA active trap to get lost, so the PXM never gets the information that the port has become active. The problem has been fixed by increasing the value of the alarm integration timer to 5 secs. This is done by changing the value of gu32TimeoutValue in the code..this timer prevents the channels from going into alarm for the duration of the timer even after the port fails. This is also a fix for CSCdv90898, but for that problem it might be required to increase the above value in shellconn depending on the cpe device.

CSCdu24006

Symptom:

Non-Existing connections are displayed on AUSM cards

Condition: MGX:8250 AUSM: 10.0.22 PXM 1.1.33Ak

Workaround:

None.
CSCdu27251
Symptom:

CESM card sometimes gets stuck in the failed state if a resetcd is done on it. The CESM may also go in the failed state if a cc is done to the card or the addcon command is executed on it.

Conditions:

This happens if the PXM has a UI-S3 back card and a switchcc is done. The shelf needs to be running on Stratum 3 level internal oscillator for this problem to occur.

Workaround:

If the shelf is running on Stratum 3 level internal oscillator and there is a switchcc, re-execute the following command on the new active card:

cnfclklevel 3

Further Problem Description:

Please contact cisco TAC for a workaround referencing this bug id.

CESM shows up as failed on the PXM. A shellConn command scmConnShow will not show a connection built to the failed card, e.g.
-> scmConnSho scmConnShow 6 
<SCM> Connection with standby PXM  is up <SCM> Connection with SM 1 is up 
<SCM> Connection with SM 2 is up <SCM> Connection with SM 5 is up <SCM> 
Connection with SM 13 is up <SCM> Connection with SM 14 is up <SCM> 
Connection with SM 17 is up <SCM> Connection with SM 18 is up <SCM> 
Connection with SM 30 is up value = 1 = 0x1 
Here we do not see the connection with SM 6 and this the card 6 (cesm) shows up as failed when you do a dspcds on the PXM.
CSCdu28072

Symptom:

The command dspcd shows channel failure even though connections does not exists on the card.

Conditions:

This happens if before deleting the last connection on a card, that channel had an alarm on it.

Workaround:

Delete the port and line on which that channel was present and re-add the port/line back.

CSCdu29422

Symptom:

Trap Manager doesn't get deleted from the standby

Condition:

XM Ver: 1.1.33Al Trap Managers are added, this gets updated on standby too. On Aging, they are deleted only on the Active Card and not on the Standby. (on switchcc, Trap Managers are seen as Enabled inspite on aging.)

Workaround:

Not Known.

CSCdu29788

Symptom:

Cannot configure line type on FRSM 2E3 other than G.751.

Conditions:

MGX:8250 PXM:1.1.33Al FRSM-2E3.

Workaround:

Under Investigation.

CSCdu34346

Condition:

Issue the 'addred <primary> <secondary> 2' command. The primary and secondary RPM cards should have different (number or type) of backcards.This condition also applies to the case when each card has one backcard each, both of the same type, but in different slots.

Result:

The following warning is to be expected----

addred:Prim and Sec LineModule type Mismatch. Command will proceed for the card type.

CSCdu37806

Symptom:

The command xcnfln -lpb 3 is not supported on FRSM-HS2

Conditions:

Always.

Workaround:

None.

CSCdu39150

Symptom:

The command dspchancnt 2000 gives an error message on FRSM-2CT3

Conditions:

MGX 8230/8250 FRSM-VHS card has channel number 2000 enabled.

Workaround:

None.

CSCdu42117

Symptom:

The dsplog has a message that says "Unable to config requested clock source because clock source 8 is unknown."

Conditions:

This message will be seen when the clock source or the node changes.

Workaround:

None.

CSCdu42490

Symptom:

After MGX1 Power On boot, dspclkinfo shows StratumLevel = none. If the PXM1 back card is UI-S3, StratumLevel should be 3 or if the back card is UI, it should be 4.

Condition:

MGX1 Power On boot.

Workaround:

After MGX1 Power On boot, program: cnfclklevel = 3 for UI-S3 back card cnfclklevel = 4 for UI back card.

CSCdu43261

Symptom:

AUSM does not display line alarm information correctly.

Conditions:

When the T1 interface is shut from the 3810.

Workaround:

None.

CSCdu43980

Symptom:

The Qdepth range is shown incorrectly on AUSM card.

Conditions:

MGX:8250 AUSM 8T1/E1.

Workaround:

Use valid values from 33 to 16000.

CSCdu45583

Symptom:

Slot #30 that was covering for Slot #28 rebooted.

Conditions:

After a switchcc on the PXM while secondary card is covering primary card. Need to have two IMA ports on this card connected with a cisco 3660 router.

Workaround:

Softswitch back to primary before switchcc.

Further Problem Description:

The problem only happens with IMA configuration.

CSCdu51929

Symptom:

After External Reference is lost, Stratum3 clock controller on UI-S3, PXM1 back card may not go into Holdover mode or Internal Free Run.

Condition:

Cable removed from CLK1 or external clock reference signal loss.

Workaround for Rls up to and including 1.1.34:

No need, if external reference is restored. Stratum3 clock controller will lock back to the external reference automatically.

If external reference is lost permanently, clock controller should be reprogrammed to be Stratum4 by executing CLI command cnfclklevel=4 and selecting INBAND reference from a feeder trunk.

CSCdu54264

Symptom:

The command switchapsln s x does not work.

Conditions:

APS configured.

Workaround:

None.

CSCdu54804

Symptom:

Wrong ChanConnPCR value displayed after xcnfcha.

Conditions:

Always.

Workaround:

None.

CSCdu55116

Symptom:

The command dspchstats will not work on a FRSM-VHSHS2 card. When executed a unknown command response is returned. The command is listed in the help menu.

Conditions:

Workaround:

None.

CSCdu55166

Symptom:

IMA lines removed from the IMA grp when slot #28 is covering for slot #30.

Conditions:

When a switchcc is performed.

Workaround:

Just restart the imagrp, and all lines come up as present.

CSCdu58229

Symptom:

APS switches working to protect on the BXM side but not on the PXM side.

Conditions:

BPX APS configured as Bidirectional, Nonrevertive and the remote node is Pop1 PXM with the same APS configuration. There is a following sequence of events: 1> Due to either a MANUAL switch or a FORCE switch, the protection line is the active line. 2> There is a fiber-cut/LOS on the receive side of protection line at the BPX end.

Workaround:

Perform APS lock on the PXM and do a APS clear.

CSCdu61609

Symptom:

CiscoView shows inconsistent status for lines in 1:1 FRSM-2T3 in MGX8250

Conditions:

1:1 red. between cards

Workaround:

None.

Further Problem Description:

When FRSM-VHS cards are configured for 1:1 Hotstandby redundancy, the standby card's database will be in sync with the primary card's database. If the lines on the Active card are enabled, then snmpget for the same lines on the standby card returns them as enabled. The line LED's on the standby card will show no color, as the lines are not made ready to handle traffic since the card is in standby state.

CSCdu62613

Symptom:

On BXM, clearing request APS Force W->P switches the active line to Working.

Conditions:

APS 1+1, Bidirectional nonrevertive. BXM connected to PXM. In Sequence Both nodes start on Protect with no requests On PXM, Manual P->W On BXM, Force W->P On BXM, Clear requests

Workaround:

Clear any request on PXM before issuing a request on the BXM.

CSCdu63090

Symptom:

Input rate less than EIR but 'dspchancnt' shows frames discarded due to UPC.

Also, 'RcvFramesDiscUPC' and 'FramesDiscXceedDEThresh' did not sum to the total discarded frames.

Condition:

Happened on FRSM-VHS cards when EIR > Input rate > PIR.

Workaround:

Unknown.

CSCdu63686

Symptom:

The portM32EgressQueThresh is not preset int the .CF file. This impacts CWM.

Conditions:

TFTP of .CF file.

Workaround:

None.

CSCdu66317

Symptom:

Trap 50609 was received with a invalid failure code.

Conditions:

Unknown.

Workaround:

None

Further Problem Description:

CSCdu66738

Symptom:

Trap 50041 coreCardsPeerMismatch received with invalid shelfSlotNum.

Conditions:

When there is core card mismatch.

Workaround:

None.

CSCdu67926

Symptom:

The traps 50231 and 50230 are received with incorrect varbind ids but the correct information for the varbind listLinksPresentInImaGrp, the varbind listLinksInImaGrp is sent instead.

Conditions:

These traps are always sent with the wrong varbinds, but the information contained does represent the correct varbind i.e even though the varbind listLinksInImaGrp is being sent it actually contains the list of links present in the ima group at present.

Workaround:

None.

CSCdu67938

Symptom:

Trap 50350: LineEnabled received with an extra varbind.

Conditions:

A line was enabled on an AUSM card running 10.0.11 on a node running PXM 1.1.34.

Workaround:

None.

CSCdu68044

Symptom:

ds1 stays in alarm along with the ports on it.

Conditions:

Adding softloop on ds1 w/o soft/hard loop on ds3 holds ds1 & ports in alarm.

Workaround:

None

Further Problem Description:

After Executing 'addlnloop <ds1>' without soft/hard loop on ds3 on a FRSMVHS-2CT3 card, the ds1 stays in alarm along with the ports on it. Executing 'addds3loop <ds3>' clears the port alarms but not the ds1.

Ds1 and Ds3 Loop should be independent of each other. We are keeping addition/deletion of ds1 loop independent of the state of the ds3 loop.

CSCdu68068

Symptom:

CLI commands display the same info for ratio queue vs. weighted fair.

Condition:

On both the dspegrq, and the cnfegrq commands.

Workaround:

None.

CSCdu68073

Symptom:

The xcnfalmcnt command accepts any parameters and does not display any error messages.

Conditions:

When xcnfalmcnt command is executed with invalid parameters.

Workaround:

None.

CSCdu68402

Symptom:

Conditions:

Workaround:

Further Description: This is a bug opened to resolve all errors found by running the PREFIX utility on the MGXPXM12 baseline

CSCdu72190

Symptom:

Active PXM reset due to 'Software Error Reset'. Standby PXM took over. There is no service impact.

Conditions:

When CiscoView is running and SRM T3 lines are enabled. The time it takes for the PXM to reset depends on the number of instances of CiscoView running. The PXM reset happens approximately every 4 hours when running more than 80 instances of CiscoView.

Workaround:

None.

CSCdu74747

Symptom:

Sometimes, while adding a new connection, ports are not showing up in the selection window properly in spite of their being present in the database. For example if the database has 4 ports for a card and shelf, it shows up only two of them or it does not show any.

Conditions:

It is intermittent and highly random.

Workaround:

Hit Cancel button so that the new connection window disappears. And restart the configure new connection window from connection manager gui. On the MGX side the problem is not seen if a physical(metallic) loopback is added instead of the soft loopback (through addlnloop).

CSCdu75928

Symptom:

PXM E1 ext clock sync not working without the Daughter card.

Conditions:

In the absence of the Daughter card or Back card, the External E1 clock will not sync and the clock status update would fail.

Workaround:

None.

CSCdu76964

Symptom:

When the CESM8T1E1 is in standby mode, it logs messages "Invalid message received from ACRED 3" in the log file.

Conditions:

Occurs when the SM is in standby mode.

Workaround:

None.

CSCdu76974

Symptom:

When the SM is in standby mode, it logs messages "Invalid message received from ACRED 3" in the log file.

Conditions:

Occurs when the SM is in standby mode.

Workaround:

None.

CSCdu76975

Symptom:

When the SM is in standby mode, it logs messages "Invalid message received from ACRED 3" in the log file.

Conditions:

Occurs when the SM is in standby mode.

Workaround:

None.

CSCdu77367

Symptom:

Conditions:

Workaround:

Before using the connections, it is advised to do node resync with the feeder nodes first. But if the connections are bouncing, this manual node resync may not help either.

CSCdu77367

Symptom:

Conditions:

Workaround:

Before using the connections, it is advised to do node resync with the feeder nodes first. But if the connections are bouncing, this manual node resync may not help either.

CSCdu79008

Symptom:

T1 alarm counters are missing.

Conditions:

FRSM-8T1E1.

Workaround:

None.

CSCdu83011

Symptom:

Misleading message when trying to do softswitch. a warning message of 'possible red table corruption' might lead to confusion.

Conditions:

When redundancy card is cover card A and trying to softswitch from card B to redundant card.

Workaround:

None. No actual impact.

CSCdu84628

Symptom:

In 1+1 bidirectional mode, local manual switch preempts remote manual switch request.

Conditions:

Workaround:

None.

CSCdu84643

Symptom:

In 1+1 uni/bidirectional APS, forced switch of p->w preempts forced switch of w->p

Conditions:

Workaround:

None.

CSCdu85051

Symptom:

In 1+1 bidirectional APS, lockout of protection not blocked by remote lockout of protection.

Conditions:

Workaround:

None.

CSCdu85063

Symptom:

In 1+1 uni/bidirectional APS, manual switch of p->w preempts manual switch of w->p.

Conditions:

Workaround:

None.

CSCdu86599

Symptom: On a 8 port CESM (AX-CESM-8T1) for the MGX8220,

it is not possible to configure a line for ESF framing with AMI line coding. This is a valid configuration, and is possible on a 4 port CESM.

Conditions: The problem is observed when configuring

a T1 line. Example: xcnfln -ds1 1 -e 3 -lt 1 -lc 4 This appears to effect all current versions (at least up to 5.0.14) of 8 port CESM cards. 4 port cards operate as desired.

Workaround: Only known workaround is to use a different

configuration or 4 port CESMs.

CSCdu88301

Symptom:

On an FRSM-HS1/B card, when traffic in excess of CIR is pumped from the network side, it causes Egress buffer overflow, which in turn causes the card to reset. Egress data buffer overflow can be checked by using the shellConn command SarShow on the FRSM-HS1/B.

Conditions:

This happens only on the FRSM-HS1/B version 10.0.22 .

Workaround:

An upgrade of the FRSM-HS1/B firmware to 10.0.23.

CSCdu88914

Symptom:

Not able to add channel with a error 'no more lcn available'.

Conditions:

Corruption in resource partition type

Workaround:

Use shell command to force update from service module to PXM.

CSCdv02276

Symptom:

Primary card in failed state after softswitch

Conditions:

Setup: PXM is running 1.1.34 2 AUSM's in 1:N Redundancy & running 10.0.11 version Now we upgrade the AUSM to 10.0.22 by doing a softswitch twice.

Problem: When doing the softswitch from secondary to primary when we do dspred we can see that the primary gets stuck in failed state.

Workaround:

Reset the secondary card before the first softswitch.

CSCdv02328

Symptom dspchans, dspifs show empty table if an abort is done in between upgrade

Condition:

Perform an install of 1.1.30 newrev 1.1.30 abort 1.1.30 At this point we lose ifs and chans

Workaround:

Here is the workaround for this problem, this should be applied only if an abort is required after the newrev stage during the upgrade. Before executing the abort command execute the following commands:

1. Go to sh in the Active PXM

2. smCardMibVer = 21 /* Change the MIB version from 23 (1.1.30) to 21 (1.1.22 and above) */

3. saveDBToArchive 7, 0 /* Create the archive file for slot 7 (VSM) with the changed MIB Version)

4. upLoadBram 7, 7 /* Write the newly created archive file to the Active and Standby disk database */

5. spmdsparchinfo 7 (on Active PXM and Standby PXM) /* Verify that the MIB version has been changed to 21 */

6. Proceed with abort.

If the same shelf is upgrade later on to 1.1.30. After the upgrade is fully completed, execute the following to do cleanup.

Execute the following after the shelf is upgraded to 1.1.30.

1. From sh in the Active PXM.

2. saveDBToArchive 7, 0

3. upLoadBram 7, 7

Further Description:

The VSM module in the PXM goes into a mismatch state once we abort at this stage. This causes the SMs to lose ifs and chans (dspifs and dspchans)
CSCdv03072
Symptom: dspclkinfo
****** Clock HW registers ******** SEL_T1 = t1      SEL100 = ON     SEL120 
= ON     SEL75 = ON NOEXTCLK = OFF 
priMuxClockSource = INBAND_CLK1 prevPriMuxClockSource = INBAND_CLK1 
primaryInbandClockSourceLineNum = 1 secMuxClockSource = INTERNAL_OSC 
prevSecMuxClockSource = none secondaryInbandClockSourceLineNumber = 1 
currentClockSetReq = primary currentClockHwStat = primary StratumLevel  = 
STRATUM4 PreviousClockHwStat = primary extClockPresent = Yes 
extClkConnectorType = RJ45 extClkSrcImpedance = 100 Ohms Internal Clock 
Status=255, Primary Clock Status=0 
Secondary Clock Status=0, Last inband Clock State=0 last Inband Clock 
state= 0, Last External Clock Present = 2 
h1a.1.7.PXM.a > dspclksrc Interface    Clock Type     Clock Source 
---------    ----------     ------------ 7.1          PRI           
INTERFACE 
h1a.1.7.PXM.a > cnfclklevel 3 
h1a.1.7.PXM.a > dspclkinfo 
****** Clock HW registers ******** SEL_T1 = t1      SEL100 = ON     SEL120 
= ON     SEL75 = ON NOEXTCLK = OFF 
priMuxClockSource = INBAND_CLK1 prevPriMuxClockSource = INBAND_CLK1 
primaryInbandClockSourceLineNum = 1 secMuxClockSource = INTERNAL_OSC 
prevSecMuxClockSource = none secondaryInbandClockSourceLineNumber = 1 
currentClockSetReq = primary currentClockHwStat = primary StratumLevel  = 
STRATUM4 PreviousClockHwStat = primary extClockPresent = Yes 
extClkConnectorType = RJ45 extClkSrcImpedance = 100 Ohms Internal Clock 
Status=255, Primary Clock Status=0 
Secondary Clock Status=0, Last inband Clock State=0 last Inband Clock 
state= 0, Last External Clock Present = 2 :wq 
Conditions:

Workaround:
CSCdv04213

Symptom:

1. Both primary and secondary cards in active state.

2. Secondary card locked. Unable to cc to the card.

3. Line on CESM T3 generates alarms.

Conditions:

To recreate the problem:'

1. softswitch' from primary(active) to secondary(stdby)

2. Then, reset active (secondary).

Workaround:

Unknown.

CSCdv08621

Symptom:

IP connectivity to the MGX1 node stops working after sometime.

Conditions:

IP connectivity is via a PVC configured between an UNI port and 7.34 on the PXM.

Workaround:

Delete the connection and readd it.

CSCdv09537

Symptom:

R_AM on protection line

Condition: Create LOS on protection, clear it and then create LOS on working.

Workaround:

CSCdv13383

Symptom:

Protection line status shows OK while remote SF condition on protection line exists.

Condition: 1+1 bidirectional APS configured.

Workaround:

None.

CSCdv13391

Symptom:

Late local equal priority request is selected in generating TxK1 after remote equal priority request is being acknowledged by PXM.

Condition: 1+1 bidirectional APS configured.

Workaround:

None.

CSCdv13400

Symptom:

PXM selects protection line and shows CH_MIS even though there is SF condition on remote BPX.

Condition: 1+1 bidirectional APS configured.

Workaround:

None.

CSCdv15625

Symptom:

When we do addlnloop on the srme card the alarms are still there. Basically the command does not work.

Conditions:

*)add line on srme oc3 card, addlnlloop on the srme line *)add a line in one of the SM's say FRSM on slot 1 line 1 *) addlink between slot1 line 1 to srme line. we can see that the line is still in alarm actually it should not be in alarm

Workaround:

The problem is because of hardware limitation. Supermapper chip has a version 2.0 which does not support the addlnloop. The newer version i.e. 2.1 or above supports addlnloop command. If we upgrade the supermapper to newer version then we should not see this problem.

CSCdv25524

Symptom:

The SNMP agent receives values 15, 16 and 17 for function module state which are not defined in the MIB.

Conditions:

When the card goes to CardInit state while booting up, the SRM card fails.

Workaround:

None.

Further Problem Description:

After the fix, state representing 15 and 16 have been removed. 17 has been defined as cardinit. That way when the old PXM image sends 17, the new SNMP agent will understand it properly.
CSCdv26309
Symptom:

Connection configured on FRSM 8E1 on an MGX8250 unabled to be deleted due to error "Port does not exist". Port is well configured and has other connections already configured and passing traffic. Also further connections cannot be added to he logical port 248 as same response is returned. Connections successfully added and deleted on other logical ports of the same card without problem/errs.

Conditions:
MGX8250 dspfwrevs Card Type   Date       Time     Size     Version             
File Name ----------- ------------------- -------- ------------------- 
------------------ PXM1        08/02/2001 18:10:22 1301128  1.1.32              
pxm_bkup_1.1.32.fw PXM1        08/02/2001 18:29:20 2241996  1.1.32              
pxm_1.1.32.fw FRSM-8T1E1  08/02/2001 20:48:20 297988   FR8_BT_1.0.02       
sm35.bt FRSM-8T1E1  08/02/2001 20:55:46 821064   10.0.21             
sm35.fw 
Workaround:

No workaround found, switchcc had no effect.
CSCdv26571

Symptoms:

communication between PXM and all RPM in the shelf is very slow. "sho ipc queue" shows that the queue is full.

Conditions:

cc to RPM using two parallel sessions and run extended ping on each of the session.

Workaround:

Run extended pings from telnet sessions instead of cc to the card

CSCdv29944

Symptom:

Link addition on standby card successful.

Condition: Add redundant back card and then add link on this.

Workaround: None
CSCdv31953
Symptom:

Unable to collect all stat types from CESM

Conditions:

Customer enabled all stat types on CESM. Connection Stats for CESM(CE Connection)
Object          SubObjectId       Statid          Stat Description(as 
shown in GUI) 
0                10                16                Seconds In Service 0                
10                58                AAL1 Sequence Mismatch 0                
10                60                Receive Bytes Discarded 0                
10                62                Rx Buffer Underflows 0                
10                63                Rx Buffer Overflows 0                
10                64                HCS Correctable Error 0                
10                65                Loss of Pointer 0                10                
66                Loss of Cell Delineation 0                10                
69                Tx Bytes Discarded-Q-Overflow 0                10                
70                Tx Cells Inserted-Q-Underflow 0                10                
71                Total Cells Tx to Line 0                10                
72                Total Cells Rx to Line 
But only be able to get stats on AAL1 Sequence Mismatch HCS Correctable 
Error Loss of Cell Delineation Total Cells Tx to Line Total Cells Rx to 
Line 
Workaround:

Under Investigation.

Further Problem Description:

Under Investigation.
CSCdv33089

Symptom:

Link/Line configuration is not deleted on srme after clrsrmcnf.

Condition:

Configure link.

Workaround:

None.

CSCdv35890

Symptom:

SRM-E stat files are bad intermittently.

Condition:

The node is synced up and used integrated SCM for collecting; only SRM-E Sonet line stats are enabled.

Workaround:

Not known.

CSCdv37960

Symptom:

PXM locks onto a bad clock added as a primary clock.

Conditions:

When PXM-UI-S3 back-card is used and clock level is Stratum 3.

Workaround:

Use the internal oscillator of the UI-S3 back card.

CSCdv39324

Symptom:

When FRSM 8e1-t1 with 10.0.20 have been provisioned or added without specifying a channel service type the default is blank. IF the card is upgraded to 10.0.22 the channels are automatically put into CBR queue and if new channels are provisioned the default service type is CBR. This causes problems with enabling foresight on these connections.

Conditions:

If connections have been added on the FRSM with a default chanservtype. And the card is then upgraded. This default is changed to CBR rather than null. This causes problems with enabling foresight as it believes its a none ABR service. Code affected is when upgrading MGX8250 FRSM code from 10.0.20 to 10.0.22.

Workaround:

None, unless chanservtype has already been selected other than default to ABR servicetype.

CSCdv39679

Symptom:

PXM does not try to lock onto the secondary clock.

Conditions:

When PXM-UI-S3 back-card is used and clock level is Stratum 3 and primary clock has failed for some reason.

Workaround:

Use the primary clock or the internal oscillator of the UI-S3 back card.

CSCdv43539

Symptom:

Card not in alarm when line is.

Conditions:

One or more lines on V.35 interface are in major alarm.

Workaround:

Issue IntegrateCardAlarm(2,256,37) from shellConn.

CSCdv45481

Symptom:

Occurs when dsplns, dspalm, dspcd is used.

Conditions:

1. When the line moves from major alarm to minor alarm, dspalm indicates the line in the appropriate alarm, but dspcd will still be at major alarm and does not get updated to minor alarm. Vice versa is also true.

2. When delds3loop is executed on a line which does not have a loop configured, card alarm is cleared if the alarm was because of this line and even though the line is still in alarm.

Workaround:

None.

CSCdv47050

Symptom:

The command xcnfalm syntax shows -ds1 <line> instead of -x21 <line>.

Conditions:

Get help on xcnfalm command.

Workaround:

None.

CSCdv47076

Symptom:

The command xcnfport syntax doesn't show -sig option.

Condition:

Get help on xcnfport.

Workaround:

None.

CSCdv47086

Symptom:

The command xcnfport syntax description shows unwanted options

Conditions:

Issuing xcnfport with no or illegal parameters

Workaround:

None.

CSCdv48190

Symptom:

Connection doesn't go into failed state on PXM upon subinterface admin shutdown

Condition: When the subinterface is administratively shutdown, the connection under that subinterfaces should go into fail state or at least a failure trap should be sent to indicate no routing can take place. CWM was not getting this Failure trap.

Workaround:

None.

CSCdv49617

Symptom:

Output of dspapsln is not aligned between the header and APS line status.

Conditions:

Workaround:

None.

CSCdv51362

Symptom:

Not able to configure bert for lines greater than 8.

Condition:

Unknown.

Workaround:

Unknown.

CSCdv53166

Symptom:

The clock status is inconsistent between dspcurclk and dspclkinfo.

Conditions:

When all of the following are true:

1. PXM-UI-S3 back-card is used and clock level is Stratum 3.

2. There is a clock-switch from primary due to an bad (incorrect frequency) clock source.

3. There is no Loss Of Action on primary clock interface.

Workaround:

Use dspclkinfo to find the status of the clock.

CSCdv53181

Symptom:

PXM does not track a good SERVICE MODULE interface clock.

Conditions:

When PXM-UI-S3 back-card is used and clock level is Stratum 3 and the active clock source is SERVICE MODULE.

Workaround:

Use the external clock source, inband or internal oscillator of the UI-S3 back card.

CSCdv56345

Symptom:

With many ports added on a FRSM-VHS (FRSM-2CT3), addport may fail due to insufficient hardware resources for further ports. However, the display does not show this as the reason.

Conditions:

On the FRSM-VHS (e.g. FRSM-2CT3) there is a limit of 128 ports for each of - ds1 1-14,43-56 - ds1 15-42

When adding a port that exceeds this limit, the error message does not accurately indicate the cause of the failure.

Workaround:

There is no workaround, this is a limitation of the hardware. The bug is that the display does not give an appropriate error message.

CSCdv69785

Symptom:

Remote Loopback operation is not blocked by CiscoView on a AUSM 8T1 line while the line is being added.

Conditions:

Add a remote loopback on AUSM8T1, the remote loopback takes effect inspite of an error message.

Workaround:

None.

CSCdv73784

Symptom:

PXM reset due to LOG task suspension

Conditions:

Unknown.

Workaround:

None. Standby PXM will take over and become active.

CSCdv76611

Symptom:

Line with soft loop does not go into minor alarm.

Conditions:

Line is added on FRSM-HS2/B using CV with a soft loop. Line is added but does not go into a minor alarms. If the line is modified using CV then it goes into minor alarm.

Workaround:

Modify the line using Cisco View OR add line using CLI.

CSCdv76770

Symptom:

PXM has a corrupted file system and the card gets reset sometimes

Conditions:

When CWM does a saveallcnf and then renames the file to the same file using different fashion

Workaround:

Switchcc to the standby PXM and format the corrupted PXM.

Further Problem Description:

Customer is using the CWM saveallcnf script to save config. However, due to the vxwork rename limitation. The script will trigger the problem by renaming the file to the same file. Hence, the PXM file system is corrupted and needs to be formatted to clean up.

CSCdv85789

Symptom:

Voice calls dropped on a softswitch on ausm.

Conditions:

This happens mostly for channels on an IMA group.

Workaround:

None

Further Problem Description:

This happens because the IMA groups restart on a softswitch as the t1 lines are reprogrammed for the standby going active.

CSCdw07261

Symptom:

Channel alarms are not propagated after deleting one end of the connection.

Conditions:

CESM-T3/E3 PXM:1.1.41Ac.

Workaround:

Under Investigation.

CSCdw07565

Symptom:

PXM OC-3 ports (UNI) do not go into alarm when the line is fed Sonet PATH AIS from tester.

Condition:

HP Tester is connected to PXM-1 OC-3 port and Sonet AIS-P cells are injected. Line reports alarm, but, port remains active.

Workaround:

Unknown.
Related Documentation

Note that for Release 1.2.00, the product documents (Command Reference, Overview, and Installation and Configuration Guides) were not updated. Use the Release 1.1.3 documents in addition to the Release Notes for Cisco WAN MGX 8850, MGX 8230, and MGX 8250 Software Version 1.2.00.

Product documentation for MGX 8850 is available at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/wanbu/mgx8850/1_1_31/index.htm

Product documentation for MGX 8230 is available at the following URL: http://www.cisco.com/univercd/cc/td/doc/product/wanbu/mgx8230/1_1_31/index.htm

Product documentation for MGX 8250 is available at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/wanbu/mgx8250/1_1_31/index.htm

Product documentation for VISM 3.0 is available at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/wanbu/mgx8850/vism30
http://www.cisco.com/univercd/cc/td/doc/product/wanbu/mgx8250/vism30
http://www.cisco.com/univercd/cc/td/doc/product/wanbu/mgx8230/vism30

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You can self-register on Cisco.com to obtain customized information and service. To access Cisco.com, go to the following URL:

http://www.cisco.com

Technical Assistance Center

The Cisco TAC is available to all customers who need technical assistance with a Cisco product, technology, or solution. Two types of support are available through the Cisco TAC: the Cisco TAC Web Site and the Cisco TAC Escalation Center.

Inquiries to Cisco TAC are categorized according to the urgency of the issue:

•Priority level 4 (P4)—You need information or assistance concerning Cisco product capabilities, product installation, or basic product configuration.

•Priority level 3 (P3)—Your network performance is degraded. Network functionality is noticeably impaired, but most business operations continue.

•Priority level 2 (P2)—Your production network is severely degraded, affecting significant aspects of business operations. No workaround is available.

•Priority level 1 (P1)—Your production network is down, and a critical impact to business operations will occur if service is not restored quickly. No workaround is available.

Which Cisco TAC resource you choose is based on the priority of the problem and the conditions of service contracts, when applicable.

Cisco TAC Web Site

The Cisco TAC Web Site allows you to resolve P3 and P4 issues yourself, saving both cost and time. The site provides around-the-clock access to online tools, knowledge bases, and software. To access the Cisco TAC Web Site, go to the following URL:

http://www.cisco.com/tac

All customers, partners, and resellers who have a valid Cisco services contract have complete access to the technical support resources on the Cisco TAC Web Site. The Cisco TAC Web Site requires a Cisco.com login ID and password. If you have a valid service contract but do not have a login ID or password, go to the following URL to register:

http://www.cisco.com/register/

If you cannot resolve your technical issues by using the Cisco TAC Web Site, and you are a Cisco.com registered user, you can open a case online by using the TAC Case Open tool at the following URL:

http://www.cisco.com/tac/caseopen

If you have Internet access, it is recommended that you open P3 and P4 cases through the Cisco TAC Web Site.

Cisco TAC Escalation Center

The Cisco TAC Escalation Center addresses issues that are classified as priority level 1 or priority level 2; these classifications are assigned when severe network degradation significantly impacts business operations. When you contact the TAC Escalation Center with a P1 or P2 problem, a Cisco TAC engineer will automatically open a case.

To obtain a directory of toll-free Cisco TAC telephone numbers for your country, go to the following URL:

http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml

Before calling, please check with your network operations center to determine the level of Cisco support services to which your company is entitled; for example, SMARTnet, SMARTnet Onsite, or Network Supported Accounts (NSA). In addition, please have available your service agreement number and your product serial number.

This document is to be used in conjunction with the Cisco WAN Switching MGX 8850 Release 1, MGX 8250, and MGX 8230 publications.

Copyright © 2002, Cisco Systems, Inc.
All rights reserved.

Cisco MGX 8800 Series Switches

1.2.13 Release Notes for MGX 8230, MGX 8250, and MGX 8850 (PXM1)

Hierarchical Navigation

Downloads

Table Of Contents

Release Notes for Cisco MGX 8230, MGX 8250, and MGX 8850 (PXM1), Software Version 1.2.13

Contents

About These Release Notes

Features Introduced in Release 1.2.13

Additional PXM1 Stats and NBSM Stats for AUSM and FRSM

Command to Terminate a Telnet Session

Features Not Supported in This Release

MGX 8220 Hardware That Has Been Superseded by MGX 8850-Specific Hardware

Service Module Redundancy Support

Network Management Features

Port/Connection Limits

SNMP MIB

Notes and Cautions

Loopback Plug on a HSSI:DTE Interface

UPC Connection Parameters

ForeSight and Standard ABR Coexistence Guidelines

CLI Modifications in 1.2.x Baseline

Node Related

Connection Management Related

Limitations

CWM Recognition of RPM-PR and MGX-RPM-128M/B Back Cards

clrsmcnf

Problems Fixed in Release 1.2.13

Known Anomalies for Platform Software Release 1.2.13 and Service Module Firmware

Compatibility Notes

MGX 8230/8250/8850 Software Interoperability with Other Products

Boot File Names and Sizes

MGX 8250/8850 Firmware Compatibility

MGX 8230 Firmware Compatibility

Comparison Matrix

RPM Compatibility Matrix

MGX 8850, MGX 8250, and MGX 8230 Release 1.2.13 Hardware

Special Installation and Upgrade Requirements

Special Instructions for Networks Containing FRSM 2 CT3

Executing the Script

Script Functionality

Upgrade Procedure for Non-Redundant PXM

Upgrade Procedure for Redundant PXMs

Instructions to Abort PXM Upgrade

Upgrade from Release 1.1.3x

Upgrade from Release 1.1.2x

Service Module Boot/Firmware Download Procedure

Manual Configuration of Chassis Identification

MGX as a Standalone Node

Chassis Identification During a Firmware Upgrade

Interoperability of Service Module on MGX 8220 and MGX 8250 Switches

Service Module Upgrades

Historical Information from the 1.2.x Baseline

Features Introduced in Release 1.2.11

RPM Automatic Cellbus Double Clocking

Enhanced Alarm Filtering

Features Introduced in Release 1.2.10

AUSM-8T1E1 Egress Channel Counters

PXM-UI-S3 Secondary BITS Clocking

VISM-PR Front Cards

Features Introduced in Release 1.2.02

Configuring the Cellbus Clock (CBC) Rate

Features Introduced in Release 1.2.01

Standard ABR on FRSM-VHS Modules

APS Support on SRM-E

Features Introduced in Release 1.2.00

FRSM-HS2/B

SRM-E

ITU APS Annex-A, All Configurations Supported on PXM1

CESM 8T1 Model B

PXM-UI-S3

Problems Fixed in Release 1.2.11

Problems Fixed in Release 1.2.10

Problems Fixed in Release 1.2.02

Problems Fixed in Release 1.2.01

Problems Fixed in Release 1.2.00

Related Documentation

Obtaining Documentation

World Wide Web

Documentation CD-ROM

Copyright © 2002, Cisco Systems, Inc.
All rights reserved.