Cisco MGX 8850 VISM, Release 1.5 Installation and Configuration
Release Notes for Cisco Voice Interworking Service Module Release 1.5(9)
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Release Notes for Cisco Voice Interworking Service Module Release 1.5(9)

Table Of Contents

Release Notes for Cisco Voice Interworking Service Module Release 1.5(9)

About the 1.5(9) Release

About the 1.5(8) Release

About the 1.5(7) Release

About the 1.5.05 Release

About the 1.5.04 Release

About the 1.5.03 Release

About the 1.5.02 Release

Contents

Features

Features Introduced in Release 1.5(9)

Features Introduced in Release 1.5(8)

Feature Introduced in Release 1.5(7)

Features Introduced in Release 1.5.05

Features Introduced in Release 1.5.04

Features Introduced in Release 1.5.03

Features Introduced in Release 1.5.02

Features Introduced in Release 1.5.01

Release 1.5(9) VISM Hardware

Redundancy

Features Not Supported in this Release

VISM MIB

Notes and Cautions

Notes and Cautions for Release 1.5(9)

Notes and Cautions for Release 1.5(8)

Notes and Cautions for Release 1.5(7)

Notes and Cautions for Release 1.5.05

Notes and Cautions for Release 1.5.04

Notes and Cautions for Release 1.5.03

Notes and Cautions For Release 1.5.02

Problems Fixed

Problem Fixed in Release 1.5(9)

Problems Fixed in Release 1.5(8)

Problems Fixed in Release 1.5(7)

Problems Fixed in Release 1.5.05

Problems Fixed in Release 1.5.04

Problems Fixed in Release 1.5.03

Problems Fixed in Release 1.5.02

Compatibility Notes

VISM Software Interoperability with MGX 8850 Platform Software

Special Installation and Upgrade Requirements

VISM Firmware Download Procedure

VISM Graceful Upgrade to 1.5(9)

VISM Upgrade from 1.5.01 and 1.5.02 to Later Releases

Standard Service Module Download Procedure

Known Anomalies for VISM

VISM 1.5(9) Anomalies

VISM 1.5(8) Anomaly

VISM 1.5(7) Anomaly

VISM 1.5.05 Anomalies

VISM 1.5.04 Anomalies

VISM 1.5.03 Anomalies

VISM 1.5.02 Anomalies

VISM 1.5.01 Anomalies

VISM 1.0 Anomalies

Obtaining Documentation

Cisco.com

Documentation CD-ROM

Ordering Documentation

Documentation Feedback

Obtaining Technical Assistance

Cisco.com

Technical Assistance Center

Cisco TAC Website

Cisco TAC Escalation Center

Obtaining Additional Publications and Information


Release Notes for Cisco Voice Interworking Service Module Release 1.5(9)


August 2003

About the 1.5(9) Release

The VISM 1.5(9) Release is a patch release and contains no new features. See the "Problem Fixed in Release 1.5(9)" section for information on the resolved caveat, CSCea42208.

About the 1.5(8) Release

The VISM 1.5(8) release is a patch release and contains no new features. This release consists of the following resolved DDTs issues:

CSCdv81919

CSCdx71685

CSCdx76786

See the "Resolved Caveats for VISM Release 1.5(8)" section for a description of the resolve issues.

About the 1.5(7) Release

The VISM 1.5(7) release consists of the new cnfallcids command line interface (CLI) command, resolved DDTs issues, and one open DDTs issue. See the "Feature Introduced in Release 1.5(7)" section for a complete description of cnfallcids. See the "Problems Fixed in Release 1.5(7)" section for a description of the following resolved DDTs issues:

CSCdt56908

CSCdv57222

CSCdv77719

CSCdv81693

CSCdv84047

CSCdw53331

See the "VISM 1.5(7) Anomaly" section for the open DDTs issue—CSCdv60608.

About the 1.5.05 Release

The 1.5.05 release is a maintenance upgrade of the VISM 1.5.04 release with some minor feature enhancements and a small number of corrected anomalies. This release is compatible with the Cisco MGX 8850 Release 1.1.24.

About the 1.5.04 Release

The 1.5.04 release is a maintenance upgrade of the VISM 1.5.03 release with a small number of corrected anomalies. There is also better support for E1 lines. This release is compatible with the MGX 8850 Release 1.1.23.

About the 1.5.03 Release

The 1.5.03 Release is a maintenance upgrade of the VISM 1.5.02 release with a small number of corrected anomalies. This release is compatible with the MGX 8850 release 1.1.23.

About the 1.5.02 Release

The previous release of VISM, known as Release 1.5.01, was part of the general MGX 8850 Release 1.1.22.

VISM releases have now been unbundled from the MGX 8850.

This VISM release, known as Release 1.5.02, is, therefore, an independent VISM software release that stands alone and is not part of a general MGX 8850 release. There are, however, compatibility issues regarding which release of VISM can operate with which release of the MGX 8850 and other Cisco products. See the "Compatibility Notes" section for details.

The update procedure included in these release notes should be noted to work around a clrsmcnf problem on slots with VISM cards.

Contents

These release notes contain the following sections:

Features

Release 1.5(9) VISM Hardware

Redundancy

Features Not Supported in this Release

VISM MIB

Notes and Cautions

Problems Fixed

Compatibility Notes

Special Installation and Upgrade Requirements

Known Anomalies for VISM

Obtaining Documentation

Obtaining Technical Assistance

Obtaining Additional Publications and Information

Features

This section lists the features supported in each of the VISM 1.5.x releases.

Features Introduced in Release 1.5(9)

None.

Features Introduced in Release 1.5(8)

None.

Feature Introduced in Release 1.5(7)

The new cnfallcids command is added to VISM Release 1.5(7).

To configure all existing CIDs with idle channel suppression (ICS) and/or voice activity detection (VAD), use the cnfallcids command only in the AAL2 trunking operating mode.

cnfallcids idle-code-sup |vad-enable|

Syntax Description

idle-code-sup

Enables or disables idle channel suppression for all CIDs. It can be one of the following values:

1 = On

2 = Off

vad-enable

(Optional) Enables or disables voice activity detection for all CIDs. It can be one of the following values:

1 = On

2 = Off


Command Modes

AAL2 trunking

Usage Guidelines

The help string produced for this command lists default values. There are no default values associated for this command. Ignore the help string default value list for this command.


Note This command will not be available in any other release of VISM software.


Examples

The following example enables both ICS and VAD on all existing CIDs:

cnfallcids 1 1

Related Commands

Command
Description

addcid

Adds an AAL2 channel identifier (CID) on a VISM card.

delcid

Deletes the association between an endpoint and an LCN/CID pair.

dspcid

Displays the argument values of an AAL2 CID on a VISM card.

dspcids

Displays all the AAL2 CIDs for a specified LCN on a VISM card.


Features Introduced in Release 1.5.05

Release 1.5.05 contains the following features:

Idle channel suppression.

Support for setting the IP precedence bit.

Support for Q.50 CAS signaling variant.

Negotiable packetization period.

Features Introduced in Release 1.5.04

Release 1.5.04 contains the following features:

E1 backcard support in AAL2 trunking mode.

AAL2 sub-cell multiplexing.

Features Introduced in Release 1.5.03

None.

Features Introduced in Release 1.5.02

VISM 1.5.02 includes all the features included with Release 1.5.01 and introduces the following new features:

E1 backcard support (VoIP mode only).

The following new CLI commands:

dsploops—display line and endpoint loopbacks.

pinglndsp—display the health of DSPs for a specified line.

dsplnendptstatus—display endpoint status for a specified line.

The addcon command has been modified to allow the user to specify the local VCI to be used for the connection.

Features Introduced in Release 1.5.01

Release 1.5.01 contains the following features:

Provides 8 standard T1 interfaces with B8ZS, AMI and HDB3 line coding.

Support for Voice over ATM using AAL2 cells (multiplexing only, no LLC/SNAP encapsulation).

Voice over IP (VoIP) using AAL5 cells to RFC 1889.

Support for both PCM a-law and mu-law.

Programmable 24, 32, 48, 64, 80, 96, 112, 128 ms near end echo cancellation.

Voice compression to G.711 and G.726-32K standards.

Nx64 clear channel (N = 1 only) support.

Voice activity detection (VAD) and comfort noise generation (CNG) using variable threshold energy (Cisco proprietary).

Support for Call Agent Simple Gateway Control Protocol (SGCP) version 1.0, SGCP 1.1+, and Media Gateway Control Protocol (MGCP) 0.1.

Support for CCS signaling transport across an AAL5 trunk.

Support for fax and modem VoIP bearer transmissions.

Support for dual (redundant) virtual circuits across the packet network.

Support for full continuity testing (COT). Supports origination and terminating loopback and transponder COT towards the packet bearer and the TDM sides.

Support for looptiming, payload, and line loopbacks.

1:N cold redundancy using SRM-3T3 capabilities (bulk mode support for T1 lines only). Calls do not persist during switchover.

Courtesy downing of ongoing voice calls when the VISM is taken out of service for maintenance or other reasons.

Release 1.5(9) VISM Hardware


Note This section contains the hardware that is supported for all of the VISM 1.5.x releases.


VISM hardware consists of two versions of a front card—one supporting T1 and one supporting E1.

The following versions of back card are supported by VISM Releases 1.5.x:

An 8-port T1 version using RJ-48 connectors

An 8-port E1 version using RJ-48 connectors

An 8-port E1 version using SMB connectors

Each of the above back cards also has a redundant version.

The following table lists the VISM 1.5.x hardware front cards and back cards and their revisions:

Front Card Model #
Rev #
Back Card Model #
Rev #

AX-VISM-8T1

B1

AX-RJ48-8T1

A

AX-R-RJ48-8T1

A

AX-VISM-8E1

B1

AX-SMB-8/E1

A

AX-R-SMB-8E1

A

AX-RJ48-8/E1

A

AX-R-RJ48-8E1

A



Note The E1 versions of the above front and back cards are supported only when VISM is operating in VoIP mode.


Redundancy

Table 1 provides the support level for 1:N and 1:1 service module redundancy.

Table 1 1:N and 1:1 Service Module Redundancy

Front card model #
Redundancy supported

MGX-VISM-8T1

1:N redundancy (bulk mode support for T1 lines only)

MGX-VISM-8E1

1:N redundancy (bulk mode support for T1 lines only)


Bulk distribution is supported by using the SRM-3T3B card.

Features Not Supported in this Release

T1/CAS Backhaul

G.729a and G.729ab voice compression

G729ab voice activity detection

VBR Provisioning - Although the CLI allows the user to specify variable bit rate (VBR), VISM does not actually provision the card for VBR in this release.

ABR/UBR Provisioning - These connections are not supported in this release and no connections are made when these parameters are specified by the user through the CLI.

Support for 31 DS0s on E1 lines.


Note Code for the above features may be included in the VISM code image. However, no specific mechanism has been included to prevent the use of these unsupported features. If the user attempts to use these unsupported features, there is no guarantee that the features will operate correctly.


VISM MIB

The VISM MIB is available by request through your Cisco VISM product marketing representative.

Notes and Cautions

This section contains notes and cautions for the VISM 1.5.x releases.

Notes and Cautions for Release 1.5(9)

None.

Notes and Cautions for Release 1.5(8)

None.

Notes and Cautions for Release 1.5(7)

None.

Notes and Cautions for Release 1.5.05

Do not upgrade the VISM backup boot firmware as this may render the VISM card inoperable.

All other Notes and Cautions for Release 1.5.02 still apply (see below).

Notes and Cautions for Release 1.5.04

Do not upgrade the VISM backup boot firmware as this may render the VISM card inoperable.

All other Notes and Cautions for Release 1.5.02 still apply (see below).

Notes and Cautions for Release 1.5.03

Do not upgrade the VISM backup boot firmware as this may render the VISM card inoperable.

All other Notes and Cautions for Release 1.5.02 still apply (see below).

Notes and Cautions For Release 1.5.02

Do not upgrade the VISM backup boot firmware as this may render the VISM card inoperable.

The following CLI modification and changes apply to this release:

The following new CLI commands:

dsploops—Display line and endpoint loopbacks. This command has no parameters.

pinglndsp <line #>—Display the health of DSPs for a specified line.

dsplnendptstatus <line#>—Display the endpoint status for a specified line.

The following CLI command is not supported in Release 1.5.02:

cnfcasxgcp—Configure CAS xGCP.

The dspxgcpstat and dspxgcpstats commands have been renamed to dspxgcpcnt and dspxgcpcnts respectively.

Both codec templates, 1 and 2, now include clear channel.

The addcon command has been changed to include a new "localVCI" parameter. Also the permissible ranges for the addcon PCR parameter have been changed.

The format of the addcon command is now:

addcon <localVCI><preference><pvcType><application><PCR><mastership>[<remoteConnId>]

Where:

localVCI

Local VCI to be used for the connection. Range is 131-510. The value entered is also used as the LCN value.

preference

Specifies the use of a primary or secondary channel: 1 for primary, 2 for secondary.

pvcType

Specifies the AAL type of the connection. 1 for AAL5, 2 for AAL2

application

Application of the connection. 1 = control, 2 = bearer, 3 = signaling. If the connection is used for bearer and signaling, specify 2 for bearer.

PCR

Peak cell rate in cells per second. Ranges are: 1 - 75600 for VoIP bearer,
1 - 24400 for VoIP control, 1 - 50000 for AAL2 T1, 1- 60000 for AAL2 E1,
1 - 400 for AAL2 signaling (trunking).

mastership

Specifies the connection as master or slave. 1 = master, 2 = slave (default).

remoteConnId

Remote connection identifier. This parameter has the format "nodename.slot.port.vpi.vci". (This parameter is used only when mastership is set to 1).


There is now a new way of configuring CAS. The command sequence is:

addln "1" (Assuming line# 1)
cnflnsig "1 1" (Configuring line#1 for CAS signaling type 1)

The addcasvar command can now be executed in any order.

For wink-start application, use filename as wink-did-dod.o

For immediate-start application, use filename as immed-did-dod.o

For ground-start application, use filename as basic-pbx.o

For wink-start, MF application, use filename as wink-did-dod-mf.o

For example, to add wink-start MF variant, enter the following:

addcasvar winkmf wink-did-dod-mf.o

This can be done at any time, irrespective of whether you had configured the other CAS variants or not.

If a valid filename is not entered, the command displays an error saying that filename has to be one of the above.

Problems Fixed

This section lists the problems that are resolved in the 1.5.x releases.

Problem Fixed in Release 1.5(9)

Table 2 lists the caveat that is resolved in Release 1.5(9).

Table 2 Resolved Caveat for VISM Release 1.5(9) 

Bug ID
Description

CSCea42208

VISM stuck in boot aft switchcc; standby did not take over.


Problems Fixed in Release 1.5(8)

Table 3 lists the caveats that are resolved in Release 1.5(8).

Table 3 Resolved Caveats for VISM Release 1.5(8) 

Bug ID
Description

CSCdv81919

Idle channel suppression (ICS) is not working in the VoIP trunking operating mode.

CSCdx71685

Idle channel suppression (ICS) one way voice path problem.

CSCdx76786

When Idle channel suppression (ICS) is disabled using the cnfallcids command, keepalive messages are no longer sent.


Problems Fixed in Release 1.5(7)

Table 4 lists the caveats that are resolved in Release 1.5(7).

Table 4 Resolved Caveats for VISM Release 1.5(7) 

Bug ID
Description

CSCdt56908

Idle channel suppression fails for AAL2 trunks. Workaround is to use VAD on trunk connection rather than idle channel suppression.

CSCdv57222

Idle channel suppression is enabled on a CID both voice packets and signaling packets are suppressed; only voice packets should be suppressed.

CSCdv77719

Idle channel suppression does not engage after a modem call terminates and the codec downspeeds to G.729.

CSCdv81693

Idle channel suppression does not engage after PBX line alarm conditions clear.

CSCdv84047

VISM needs to provide a new CLI to configure the ICS and VAD values for all the CIDs in a CID table.

CSCdw53331

VISM one way voice path problem. VAD frame count incrementing is performed without checking the overflow condition, which causes VAD frames to be classified as unknown. Additionally, VAD considers the unknown classified VAD frames as noise and suppresses them, which silences the voice path for an extended length of time.


Problems Fixed in Release 1.5.05

Table 5 and Table 6 list the caveats that are resolved in Release 1.5.05.

.

Table 5 Resolved AAL2 Operating Mode Caveats for VISM Release 1.5.05 

Bug ID
Description

CSCdr22479

Headline: PSQM high scores with VAC on.

Description: The PSQM threshold was set to be at 2.5, however, the resulting scores were in the 6.5 range. Post analysis showed that leading edge and trailing edge were missing.

CSCdr26132

Headline: CAC was enabled even when the connection bandwidth was in excess of the allowed bandwidth.

Description: Added connections (PVC) with a specific PCR, and added CIDS without CAC enabled. Re-enabling CAC should fail to enable the CAC on the card because the current bandwidth was in excess of the allowed bandwidth. Instead of failing to enable CAC, CAC is enabled.

CSCdr26900

Headline: Upspeeded CID is not down speeded when FAX call made

Description: When the FAX call was made with both the end of the connections were in MASTER mode of CAC, one end of CID upspeeded but the other end did not. After the FAX call was disconnected, the upspeeded end of the CID did not return to the original codec type. Subsequent calls were not able to be made.

Workaround: Configure connection CAC to Slave before making any calls.


Table 6 Resolved VoIP Operating Mode Caveats for VISM Release 1.5.05 

Bug ID
Description

CSCdr08976

Headline: E1 VISM allows calls with depleted bandwidth.

Description: After 60 call completions, VISM begins to borrow or deplete bandwidth from stable calls to be used in newly setup calls. This results in tone verification failure and calls getting torn down. Once PVC bandwidth has been depleted with active calls, VISM should reject any new incoming calls. Currently it does not.

CSCdr13493

Headline: VISM E1: ECAN/VAD not disabled during modem call detection

Description: Make a modem call from the PC to the NAS via the DMS/VSC/VISM. The VISM-E1 does not dynamically disable ECAN during the detection of the modem call. After entering the VISM shellconn/CLI to disable ECAN/VAD and ignore ECAN/VAD, and changing jitter = 20 ms, the modem call is established with V.90 mode.


Problems Fixed in Release 1.5.04

Table 7 and Table 8 list the caveats that are resolved in Release 1.5.04.

Table 7 Resolved AAL2 Operating Mode Caveats for VISM Release 1.5.04 

Bug ID
Description

CSCdp49340

VoAAL2

Headline: cnfcon does not change the PCR

Description: When the value of the PCR parameter is changed through the cnfcon command, VISM does not change the value in the MIB.

CSCdp72954

VoAAL2

Headline: LOS does not cause VISM to switch clock if VISM is clocking the shelf

Description: When the VISM line is used to clock the MGX shelf, if the VISM gets a loss of signal on the T1 line, or, if the line from which clock is derived is deleted, the PXM does not switch to the secondary clock source as expected. Loss of clock is recognized at the PXM only when the VISM port is down (when a card is reset or if a port is deleted).

CSCdr16013

VoAAL2

Headline: VISM and 3810 Tx ones (seizures) on last 6 ds0s to pbx.

Description: VISM and 3810 Tx ones (seizures) on last 6 ds0s to pbx. On test bed (pbx loop - ie no 4ESS connection), both 3810 & VISM are transmitting ones on ds0s 19 to 24.


Table 8 Resolved VoIP Operating Mode Caveats for VISM Release 1.5.04 

Bug ID
Description

CSCdr17034

VoIP

Headline: Unable to detect co2 in transponder mode.

Description: The NTFY message is not forwarded to the CA and COT fails.


Problems Fixed in Release 1.5.03

Table 9 lists the caveats that are resolved in Release 1.5.03.

Table 9 Resolved AAL2 Operating Mode Caveats for VISM Release 1.5.03 

Bug ID
Description

CSCdr16005

VoAAL2

Headline: Manual call upspeeds by itself after static pops

Description: While testing CCS INC to Frame with 20 Hammer calls up, one modem call up and one manual call, the manual call would have a static pop and then upspeed and downspeed. Testing with CNN on one end of the call, this was happening about every second. With two people talking, it happened much less often but still happened.

CSCdr16020

VoAAL2

Headline: VISM sending packets to Cisco 3810 when no voice call is active.

Description: VISM sending packets to 3810 w/ no voice call active.

CSCdr12039

VoAAL2

Headline: VISM bulk stress test call failure.

Description: During test using the VCO4K some degradation in tone shaping was detected. the VCO4k flag these calls as failed. No call drops resulted from this condition.


Problems Fixed in Release 1.5.02

Table 10 lists the caveats that are resolved in Release 1.5.02.

Table 10 Resolved Caveat for VISM Release 1.5.02 

Bug ID
Description

CSCdp69061

Headline: VISM cards reset during 15 cps test

Description: During a 15 cps test, all VISM cards reset unexpectedly stopping all traffic. Cause is being investigated.

Workaround: None

CSCdp68582

Headline: Loss of voice quality on PXM to PXM calls

Description: Some voice dropout and clipping experienced during testing on PXM to PXM calls. Cause is being investigated.

Workaround: None.

CSCdp66621

Headline: Slower data rates when modem calls pass through VISM cards

Description: When modem calls were passed through VISM, the achieved data rates were lower than expected.

Workaround: Modem support is limited to V.34 in this release.


Compatibility Notes

This section lists the compatibility matrixes and the bootcode and firmware requirements for the 1.5.x releases.

VISM Software Interoperability with MGX 8850 Platform Software

Table 11 Image Configuration Matrix 

Product
Boot Image
Firmware image

PXM1

pxm_bkup_1.1.34.fw

pxm_1.1.34.fw

PXM1-2-T3E3

pxm_bkup_1.1.34.fw

pxm_1.1.34.fw

PXM1-4-155

pxm_bkup_1.1.34.fw

pxm_1.1.34.fw

PXM1-1-622

pxm_bkup_1.1.34.fw

pxm_1.1.34.fw

AX-CESM-8E1

cesm_8t1e1_CE8_BT_1.0.02.fw

cesm_8t1e1_10.0.11.fw

AX-CESM-8T1

cesm_8t1e1_CE8_BT_1.0.02.fw

cesm_8t1e1_10.0.11.fw

MGX-AUSM-8E1/B

ausm_8t1e1_AU8_BT_1.0.02.fw

ausm_8t1e1_10.0.11.fw

MGX-AUSM-8T1/B

ausm_8t1e1_AU8_BT_1.0.02.fw

ausm_8t1e1_10.0.11.fw

MGX-CESM-T3

cesm_t3e3_CE8_BT_1.0.02.fw

cesm_t3e3_10.0.11.fw

MGX-CESM-E3

cesm_t3e3_CE8_BT_1.0.02.fw

cesm_t3e3_10.0.11.fw

AX-FRSM-8E1

frsm_8t1e1_FR8_BT_1.0.02.fw

frsm_8t1e1_10.0.11.fw

AX-FRSM-8E1-C

frsm_8t1e1_FR8_BT_1.0.02.fw

frsm_8t1e1_10.0.11.fw

AX-FRSM-8T1

frsm_8t1e1_FR8_BT_1.0.02.fw

frsm_8t1e1_10.0.11.fw

AX-FRSM-8T1-C

frsm_8t1e1_FR8_BT_1.0.02.fw

frsm_8t1e1_10.0.11.fw

MGX-FRSM-HS2

frsm_vhs_VHS_BT_1.0.02.fw

frsm_vhs_10.0.11.fw

MGX-FRSM-2CT3

frsm_vhs_VHS_BT_1.0.02.fw

frsm_vhs_10.0.11.fw

MGX-FRSM-2T3E3

frsm_vhs_VHS_BT_1.0.02.fw

frsm_vhs_10.0.11.fw

MGX-FRSM-HS1/B

frsm_hs1_HS1_BT_1.0.02.fw

frsm_hs1_10.0.11.fw

MGX-VISM-8T1

vism_8t1e1_VI8_BT_1.0.02.fw

vism_8t1e1_1.5.09.fw

MGX-VISM-8E1

vism_8t1e1_VI8_BT_1.0.02.fw

vism_8t1e1_1.5.09.fw

MGX-RPM-128M/B

rpm-boot-mz.121-1.T1

rpm-js-mz.121-1.T


Table 12 VISM 1.5.x Software Interoperability with other Cisco Products

Product
Component

Cisco 3810

MC3810_A2JSV5_MZ.121_1.XA2

Network Management Software:

CWM 9.2.08 .SOL.Patch6.tar

CiscoView

CV 4.2 WAN CV 2.09

Virtual Switch Controller Software

VSC 7.4(6)


Table 13 through Table 20 list the software boot and runtime firmware requirements for the 1.5.x releases.

Table 13 VISM 1.5(9) Software Boot and Runtime Firmware Requirements

Board Pair
Latest Boot Code Version
Minimum Boot Code Version
Firmware
Latest Firmware Version
Minimum Firmware Version

MGX-VISM-8T1

vism_8t1e_VI8_BT_1.0.02.fw

1.0.02

vism_8t1e1_1.5.09.fw

1.5.09

1.5.09

MGX-VISM-8E1

vism_8t1e_VI8_BT_1.0.02.fw

1.0.02

vism_8t1e1_1.5.09.fw

1.5.09

1.5.09


Table 14 VISM 1.5(8) Software Boot and Runtime Firmware Requirements

Board Pair
Latest Boot Code Version
Minimum Boot Code Version
Firmware
Latest Firmware Version
Minimum Firmware Version

MGX-VISM-8T1

vism_8t1e_VI8_BT_1.0.02.fw

1.0.02

vism_8t1e1_1.5.0_8.fw

1.5.08

1.5.08

MGX-VISM-8E1

vism_8t1e_VI8_BT_1.0.02.fw

1.0.02

vism_8t1e1_1.5.0_8.fw

1.5.08

1.5.08


Table 15 VISM 1.5(7) Software Boot and Runtime Firmware Requirements

Board Pair
Latest Boot Code Version
Minimum Boot Code Version
Firmware
Latest Firmware Version
Minimum Firmware Version

MGX-VISM-8T1

vism_8t1e_VI8_BT_1.0.02.fw

1.0.02

vism_8t1e1_1.5.0_7.fw

1.5.07

1.5.07

MGX-VISM-8E1

vism_8t1e_VI8_BT_1.0.02.fw

1.0.02

vism_8t1e1_1.5.0_7.fw

1.5.07

1.5.07


Table 16 VISM 1.5.05 Software Boot and Runtime Firmware Requirements

Board Pair
Latest Boot Code Version
Minimum Boot Code Version
Firmware
Latest Firmware Version
Minimum Firmware Version

MGX-VISM-8T1

vism_8t1e_VI8_BT_1.0.02.fw

1.0.02

vism_8t1e1_1.5.0_5.fw

1.5.05

1.5.05

MGX-VISM-8E1

vism_8t1e_VI8_BT_1.0.02.fw

1.0.02

vism_8t1e1_1.5.0_5.fw

1.5.05

1.5.05


Table 17 VISM 1.5.04 Software Boot and Runtime Firmware Requirements

Board Pair
Latest Boot Code Version
Minimum Boot Code Version
Firmware
Latest Firmware Version
Minimum Firmware Version

MGX-VISM-8T1

vism_8t1e_VI8_BT_1.0.02.fw

1.0.02

vism_8t1e1_1.5.0_4.fw

1.5.04

1.5.04

MGX-VISM-8E1

vism_8t1e_VI8_BT_1.0.02.fw

1.0.02

vism_8t1e1_1.5.0_4.fw

1.5.04

1.5.04


Table 18 VISM 1.5.03 Software Boot and Runtime Firmware Requirements

Board Pair
Latest Boot Code Version
Minimum Boot Code Version
Firmware
Latest Firmware Version
Minimum Firmware Version

MGX-VISM-8T1

vism_8t1e_VI8_BT_1.0.02.fw

1.0.02

vism_8t1e1_1.5.0_3.fw

1.5.03

1.5.03

MGX-VISM-8E1

vism_8t1e_VI8_BT_1.0.02.fw

1.0.02

vism_8t1e1_1.5.0_3.fw

1.5.03

1.5.03


Table 19 VISM 1.5.02 Software Boot and Runtime Firmware Requirements

Board Pair
Latest Boot Code Version
Minimum Boot Code Version
Firmware
Latest Firmware Version
Minimum Firmware Version

MGX-VISM-8T1

vism_8t1e_VI8_BT_1.0.02.fw

1.0.02

vism_8t1e1_1.5.0_2.fw

1.5.02

1.5.02

MGX-VISM-8E1

vism_8t1e_VI8_BT_1.0.02.fw

1.0.02

vism_8t1e1_1.5.0_2.fw

1.5.02

1.5.02


Table 20 VISM 1.5.01 Software Boot and Runtime Firmware Requirements

Board Pair
Latest Boot Code Version
Minimum Boot Code Version
Firmware
Latest Firmware Version
Minimum Firmware Version

MGX-VISM-8T1

vism_8t1e_VI8_BT_1.0.02.fw

1.0.01

vism_8t1e1_VI8_1.5_01fw

1.5.01

1.5.01

MGX-VISM-8E1

vism_8t1e_VI8_BT_1.0.02.fw

1.0.01

vism_8t1e1_VI8_15_01.fw

1.5.01

1.5.01


Special Installation and Upgrade Requirements

This section describes how to upgrade the VISM card.

VISM Firmware Download Procedure

To download the VISM firmware, complete the following steps:


Step 1 Download the selected revision of service module firmware into the service module in the selected slot.

a. tftp <node_name or IP address>

b. bin

c. put <backup boot> POPEYE@SM_1_<slot#>.BOOT

d. quit

Step 2 Download the selected firmware files.

To upgrade all VISM cards, proceed to Step 2c. To upgrade an individual card, proceed to Step 2d.

a. tftp <node_name or IP address>

b. bin

c. put <FW file> POPEYE@SM_1_0.FW

quit

d. put <FW file> POPEYE@SM_1_<slot number of card to upgrade>.FW

quit


Note You cannot enter two put commands in the same TFTP session.


Step 3 Proceed to the "VISM Graceful Upgrade to 1.5(9)" section to install the download.


VISM Graceful Upgrade to 1.5(9)

VISM 1.5(9) provides a procedure for the graceful upgrade (one in which the existing VISM configuration is preserved throughout the upgrade procedure) from Releases 1.5.03 through 1.5(8).

Initial Conditions

The following initial conditions are required before the graceful upgrade procedure can be started:

The MGX 8850 must be configured with at least two VISM cards in a redundant configuration (see the addred command in the MGX 8850 command references for details).

The VISM cards must be running Release 1.5.03 or higher and configured to the desired configuration.

The VISM 1.5(9) firmware must have been downloaded to the MGX 8850 (see "VISM Firmware Download Procedure" above for details).

Upgrade Procedure

In this procedure the following conditions apply:

Two VISM card are involved, one initially active and one initially standby. In the procedure description, the initially active VISM is identified as VISM 1 and the initially standby VISM as VISM 2.

Old-rev refers to the firmware before the upgrade, 1.5(8) and prior.

New-rev refers to the 1.5(9) firmware.


Step 1 Log in to the active PXM card (slot 7 or 8).

Step 2 Execute the PXM install command:

install sm <SM slot#> <new-rev>

where:

SM slot# is the slot number of the VISM 1 card (the initially active card) and new-rev is the file name of the 1.5(9) firmware.


Note Use the PXM dspfwrevs command to obtain the new-rev number for Step 2.


This command causes the standby VISM 2 to reset and come up in the "hold" state, running the new-rev firmware. The active VISM 1 is unaffected by this command. At this point the primary firmware is still the old-rev and the secondary firmware is new-rev.

Step 3 Execute the PXM newrev command:

newrev sm <SM slot#> <new-rev>

where:

SM slot# is the slot number of the VISM 1 and new-rev is the filename of the 1.5(9) firmware.

This command causes the VISM 2 to become the active VISM running the new-rev firmware. The previously active VISM 1 changes to a "hold" state and is still running the old-rev firmware. The primary and secondary firmware switches, with the new-rev becoming the primary firmware.

Step 4 Execute the PXM commit command:

commit sm <SM slot#> <new-rev>

where:

SM slot# is the slot number of the standby VISM 1 and new-rev is the filename of the 1.5(9) firmware.

This command causes both VISM cards to run the new-rev firmware. At first, VISM 2 is the active VISM with VISM 1 remaining in the hold state. After a short time, the cards switch automatically with
VISM 1 becoming the active card and VISM 2 the standby card.

The two VISM cards are now back to their original condition except that both cards are now running the new-rev firmware, Release 1.5(9).

Step 5 Log in to the active VISM card and use the display commands (dspendpts, dspcasvar, and so forth) to confirm that the configuration has been preserved through the upgrade process.

It is also recommended that you perform further verifications by making some minor modifications to the configuration, checking that the changes have been executed correctly, and then changing the configuration back again.


VISM Upgrade from 1.5.01 and 1.5.02 to Later Releases

VISM Releases 1.5.01 and 1.5.02 do not provide for graceful upgrades. Upgrading from these releases requires the old configuration to be cleared.

The resetsys command does not clear the configuration.

The clrsmcnf command is not supported on VISM cards that have ports and connections.

Follow these steps to successfully load the new VISM configuration:


Step 1 With old PXM and VISM images still loaded, delete all of the following from the VISM cards:

CIDs

CCS (in case of a CCS config)

connections

endpoints

lines

resource partitions

ports

Step 2 Remove VISM cards from the shelf.


Note THIS STEP IS VERY IMPORTANT.


Step 3 Execute the clrsmcnf command on all VISM cards.

Step 4 Upgrade boot code on PXM using the normal procedure.

Step 5 TFTP the new PXM firmware image and new VISM firmware image. See "Standard Service Module Download Procedure" below for this step.

Step 6 Use the resetsys command to reset the shelf.

Step 7 Insert VISM cards back into the shelf.

The proper databases with the new images are automatically rebuilt.


Standard Service Module Download Procedure

Follow this procedure for service module upgrades. Service module firmware images cannot be downloaded as specific versions in MGX 8850 Release 1.1.22 because only one image can be present on the disk at one instance. Hence the user cannot revert back during the installation process.


Step 1 Download the service module firmware to the shelf:

a. unix-prompt> tftp shelf.ip.address

b. tftp> bin

c. tftp> put vism_8t1e1_1.5.09.fw POPEYE@SM_1_0.FW

Sent 1982672 bytes in 18.3 seconds

Step 2 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

Step 3 Repeat the above steps for each service module type and for each slot independent firmware.


Note There is no abort command for service module upgrade.



Known Anomalies for VISM

This section contains the known caveats for VISM Release 1.5.x. A brief description of the problem is included with each anomaly ID. A more in-depth discussion is available in the release note enclosure of the problem record in Bug Navigator.

VISM 1.5(9) Anomalies

None.

VISM 1.5(8) Anomaly

Table 21 describes the known anomaly in Release 1.5(8).

Table 21 Anomaly in VISM Release 1.5(8) 

Bug ID
Description

CSCea42208

Headline: VISM stuck in boot aft switchcc; standby did not take over.

Problem: Moderately loaded shelf, light traffic.

Workaround: Reset card stuck in boot, which makes the standby take over. Then softswitch to make primary card active.


VISM 1.5(7) Anomaly

Table 22 describes the known anomaly in the VISM service module, Release 1.5(7).

Table 22 AAL2 Operating Mode Anomaly for VISM Release 1.5(7) 

Bug ID
Description

CSCdv60608

Headline: DTMF Digits failure during the call.

Problem: When a call originates at VISM A and VISM B tests the speech path using digits transmitted from the terminating end (VISM B), a failure rate of 0.1% is observed for Digit ON time less than 80 ms (OFF time fixed at 60 ms). Failure rate increases as ON time is decreased.

The failure rate is observed to be independent of DTMF digit relay being turned ON or turned OFF.

Workaround: Use a digit ON time greater than 120 ms.


VISM 1.5.05 Anomalies

Table 23 and Table 24 list the known anomalies in the VISM service module, Release 1.5.05 delivery.

Table 23 VoIP Operating Mode Anomalies for VISM Release 1.5.05 

Bug ID
Description

CSCdr58602

Headline: DTMF is not supported for G729 in VoIP.

For VoIP application, DTMF digit relay fails for G.729a and G.729ab codecs. The failure is determined to be due to the digit being leaked out over bearer while simultaneously being relayed as NSE packet.

Workaround: None. Do not use G.729a, G.729ab for VoIP application.


Table 24 AAL2 Operating Mode Anomalies for VISM Release 1.5.05 

Bug ID
Description

CSCdr63059

Headline: DTMF Digits failure during the call

Problem: When a call originates at VISM A and VISM B tests the speech path using digits transmitted from the terminating end (VISM B), a failure rate of 0.1% is observed for Digit ON time less than 80 ms (OFF time fixed at 60 ms). Failure rate increases as ON time is decreased.

The failure rate is observed to be independent of DTMF digit relay being turned ON or turned OFF.

Workaround: Use a digit ON time greater than 120 ms.


VISM 1.5.04 Anomalies

Table 25 and Table 26 list the known anomalies in the VISM service module, Release 1.5.04 delivery.

Table 25 AAL2 Operating Mode Anomalies for VISM Release 1.5.04 

Bug ID
Description

CSCdr22479

Headline: PSQM high scores with VAC on.

Description: The PSQM threshold was set to be at 2.5, however, the resulting scores were in the 6.5 range. Post analysis showed that leading edge and trailing edge were missing.

CSCdr26132

Headline: CAC was enabled even when the connection bandwidth was in excess of the allowed bandwidth.

Description: Added connections (PVC) with a specific PCR, and added CIDS without CAC enabled. Re-enabling CAC should fail to enable the CAC on the card because the current bandwidth was in excess of the allowed bandwidth. Instead of failing to enable CAC, CAC is enabled.

CSCdr26900

Headline: Upspeeded CID is not down speeded when FAX call made

Description: When the FAX call was made with both the end of the connections were in MASTER mode of CAC, one end of CID upspeeded but the other end did not. After the FAX call was disconnected, the upspeeded end of the CID did not return to the original codec type. Subsequent calls were not able to be made.

Workaround: Configure connection CAC to Slave before making any calls.


Table 26 VoIP Operating Mode Anomalies for VISM Release 1.5.04 

Bug ID
Description

CSCdr08976

Headline: E1 VISM allows calls with depleted bandwidth.

Description: After 60 call completions, VISM begins to borrow or deplete bandwidth from stable calls to be used in newly setup calls. This results in tone verification failure and calls getting torn down. Once PVC bandwidth has been depleted with active calls, VISM should reject any new incoming calls. Currently it does not.

CSCdr13493

Headline: VISM E1: ECAN/VAD not disabled during modem call detection

Description: Make a modem call from the PC to the NAS via the DMS/VSC/VISM. The VISM-E1 does not dynamically disable ECAN during the detection of the modem call. After entering the VISM shellconn/CLI to disable ECAN/VAD and ignore ECAN/VAD, and changing jitter=20ms, the modem call is established with V.90 mode.


VISM 1.5.03 Anomalies

Table 27 and Table 28 list the known anomalies in the VISM service module, Release 1.5.03 delivery.

Table 27 AAL2 Operating Mode Anomalies for VISM Release 1.5.03 

Bug ID
Description

CSCdp49340

Headline: cnfcon does not change the PCR

Description: When the value of the PCR parameter is changed through the cnfcon command, VISM does not change the value in the MIB.

CSCdp72954

Headline: LOS does not cause Vism to switch clock if VISM clocking the shelf

Description: When the VISM line is used to clock the MGX shelf, if the VISM gets a loss of signal on the T1 line or if the line from which clock is derived is deleted, the PXM does not switch to the secondary clock source as expected. Loss of clock is recognized at the PXM only when the VISM port is down (when a card is reset or if a port is deleted).

CSCdr16013

Headline: VISM and 3810 Tx ones (seizures) on last 6 ds0s to pbx.

Description: VISM and 3810 Tx ones (seizures) on last 6 ds0s to pbx. On test bed (pbx loop - ie no 4ESS connection), both 3810 and VISM are transmitting ones on ds0s 19 to 24.


Table 28 VoIP Operating Mode Anomalies for VISM Release 1.5.03 

Bug ID
Description

CSCdr08976

Headline: E1 VISM allows calls with depleted bandwidth.

Description: After 60 call completions, VISM begins to borrow or deplete bandwidth from stable calls to be used in newly setup calls. This results in tone verification failure and calls getting torn down. Once PVC bandwidth has been depleted with active calls, VISM should reject any new incoming calls. Currently it does not.

CSCdr13493

Headline: VISM E1: ECAN/VAD not disabled during modem call detection

Description: Make a modem call from the PC to the NAS via the DMS/VSC/VISM. The VISM-E1 does not dynamically disable ECAN during the detection of the modem call. After entering the VISM shellconn/CLI to disable ECAN/VAD and ignore ECAN/VAD, and changing jitter=20ms, the modem call is established with V.90 mode.

CSCdr17034

Headline: Unable to detect co2 in transponder mode.

Description: The NTFY message is not forwarded to the CA and COT fails.


VISM 1.5.02 Anomalies

Table 29 and Table 30 list the known anomalies in the VISM service module, Release 1.5.02 delivery.

Table 29 AAL2 Operating Mode Anomalies for VISM 1.5.02 

Bug ID
Description

CSCdp49340

Headline: cnfcon does not change the PCR.

Description: When the value of the PCR parameter is changed through the cnfcon command, VISM does not change the value in the MIB.

CSCdp72954

Headline: LOS does not cause VISM to switch clock if VISM clocking the shelf.

Description: When the VISM line is used to clock the MGX shelf, if the VISM gets a loss of signal on the T1 line or if the line from which clock is derived is deleted, the PXM does not switch to the secondary clock source as expected. Loss of clock is recognized at the PXM only when the VISM port is down (when a card is reset or if a port is deleted).

CSCdr12039

Headline: VISM bulk stress test call failure

Description: During test using the VCO4K, some degradation in tone shaping was detected. The VCO4K flags these calls as failed. No call drops resulted from this condition.

CSCdr16013

Headline: VISM and 3810 Tx ones (seizures) on last 6 ds0s to pbx.

Description: VISM and 3810 Tx ones (seizures) on last 6 ds0s to pbx. On test bed (pbx loop - ie no 4ESS connection), both 3810 and VISM are transmitting ones on ds0s 19 to 24.

CSCdr16005

Headline: Manual call upspeeds by itself after static pops

Description: While testing CCS INC to Frame with 20 Hammer calls up, one modem call up and one manual call, the manual call would have a static pop and then upspeed and downspeed. Testing with CNN on one end of the call this was happening about every second. With two people talking, it happened much less often but still happened.

CSCdr16020

Headline: VISM sending packets to Cisco 3810 when no voice call is active.

Description: VISM sending packets to 3810 with no voice call active.


Table 30 VoIP Operating Mode Anomalies for VISM Release 1.5.02 

Bug ID
Description

CSCdr08976

Headline: E1 VISM allows calls with depleted bandwidth.

Description: After 60 call completions, VISM begins to borrow or deplete bandwidth from stable calls to be used in newly setup calls. This results in tone verification failure and calls getting torn down. Once PVC bandwidth has been depleted with active calls, VISM should reject any new incoming calls. Currently it does not.

CSCdr13493

Headline: VISM E1: ECAN/VAD not disabled during modem call detection

Description: Make a modem call from the PC to the NAS via the DMS/VSC/VISM. The VISM-E1 does not dynamically disable ECAN during the detection of the modem call. After entering the VISM shellconn/CLI to disable ECAN/VAD and ignore ECAN/VAD, and changing jitter=20ms, the modem call is established with V.90 mode.

CSCdr17034

Headline: Unable to detect co2 in transponder mode.

Description: The NTFY message is not forwarded to the CA and COT fails.


VISM 1.5.01 Anomalies

Table 31 lists the known anomalies in the VISM service module, Release 1.5.01 delivery.

Table 31 VISM Release 1.5.01 Anomalies 

Bug ID
Description

CSCdp69061

Headline: VISM cards reset during 15 cps test

Description: During a 15 cps test, all VISM cards reset unexpectedly, stopping all traffic. Cause is being investigated.

Workaround: None

CSCdp68582

Headline: Loss of voice quality on PXM to PXM calls.

Description: Some voice dropout and clipping experienced during testing on PXM to PXM calls. Cause is being investigated.

Workaround: None.

CSCdp66621

Headline: Slower data rates when modem calls pass through VISM cards.

Description: When modem calls were passed through VISM, the achieved data rates were lower than expected.

Workaround: Modem support is limited to V.34 in this release.


VISM 1.0 Anomalies

Table 32 lists the known anomalies in the MGX 8850 VISM service module, Release 1.0 delivery.

Table 32 VISM Release 1.0 Anomalies 

Bug ID
Description

CSCdp20174

Symptom: VISM does not recognize LOS

Description: If T1 cables are disconnected from the VISM card, or the connected channel bank is powered off, the VISM card does not detect LOS. The card still acts like the line is connected. Reported by ATT Piscataway, MR:000233, Jan Sussman.

CSCdp21467

Symptom: VISM ignores echo setting

Description: When sending SGCP messages that tell the VISM to turn on echo cancellation, the actual endpoints setup do not have ECAN turned on.

Workaround: The work around for this issue in VISM 1.0 is to use the shellcon command ccIgnoreLcoEcan. Note that this change via the use of this command is not persistent. This command needs to be re-executed every time VISM is reset/rebooted.

CSCdp32764

Symptom: Undeleted Connections existed on VISM after overnight calls

Description: We have set up the VISM to originate and terminate on same T1 line. We ran the overnight calls and we observed that each endpoint had connection associated with it. VSC was sending DLCX message but VISM was responding with 510 NACK message and reason code was - CALL/Endpoint Unknown.


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