Table Of Contents
1.1.25 Version Software Release Notes Cisco WAN MGX 8850, 8230, and 8250 Software
Features Introduced in Release 1.1.25
Features Introduced in Release 1.1.24
Continued Support for the MGX 8850
Features Introduced in Release 1.1.23
Features Introduced in Release 1.1.22
Features Introduced in Release 1.1.21
Features Introduced in Release 1.1.12
Features Introduced in Release 1.1.11
Features Introduced in Release 1.1.10
Release 1.1.25 MGX 8850 Hardware
MGX 8220 Hardware Not Supported on Release 1.1.25 of the MGX 8850
MGX 8220 Hardware that has been superseded on the MGX 8850 by MGX 8850-specific Hardware
MGX 8220 Hardware Not Supported on the MGX 8850
Features Not Supported in this Release
Major Network Management Features
Problems Fixed in Release 1.1.25
Problems Fixed in Release 1.1.24
Problems Fixed in Release 1.1.23
Problems Fixed in Release 1.1.22
Problems Fixed in Release 1.1.21
Problems Fixed in Release 1.1.20
Problems Fixed in Release 1.1.01
Problems Fixed in Release 1.1.00
Problems Fixed for RPM in 12.0.5T1
Problems Fixed for RPM in 12.0.4T
Special Installation and Upgrade Requirements
Single PXM Installation Procedure
Installation Procedure For Redundant PXMs:
Service Module Firmware Download Procedure
Service Module Installation/Upgrade and Flashdownload Requirements.
Known Anomalies for Platform Software and Service Module Firmware
Known Anomalies for RPM release 12.1(1)T
Known Anomalies for RPM Release 12.0(5)T1
RPM Configuration Examples for MPLS-based Virtual Private Networks
One PE - Two CE Configuration - OSPF & IBPG Between PEs & EBGP between PE-CE
One PE - Two CE Configuration - OSPF & IBPG Between PEs & RIP between PE-CE
One PE - Two CE Configuration - OSPF & IBPG Between PEs & STATIC ROUTES between PE-CE
1.1.25 Version Software Release Notes Cisco WAN MGX 8850, 8230, and 8250 Software
About These Release Notes
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About the 1.1.25 Release
This is a maintenance release including all features supported up to release 1.1.24.
About the 1.1.24 Release
This is a maintenance release including all features supported up to release 1.1.23. The 1.1.24 release supports two new switches, the MGX 8230 and the MGX 8250.
About the 1.1.23 Release
Release 1.1.23 supports the same network scenarios as Release 1.1.12 and 1.1.22.
1.
Feeder concentration to the BPX 8600 and all other endpoints (no BPX 8600 BNI trunk connections). IGX endpoints are supported in this release using Switch Software 9.2.
The MGX 8850 provides multiservice, high density ATM, Circuit Emulation and Frame Relay feeder concentration to the BPX 8600. The MGX 8850 connects to the BPX 8600 using the feeder trunk protocol over a PXM port. On the BPX 8600 side the feeder connection trunk to the MGX 8850 is supported on the BXM card only. Interoperability support is limited to (a) MGX 8850 to MGX 8850, (b) MGX 8850 to MGX 8220, c) MGX 8850 as a feeder to BPX 8600 (FR to ATM service interworking) but with IGX endpoints, and (d) MGX 8850 to IGX.
2.
MGX 8850 in a Stand-alone Concentrator configuration and full PXM UNI support on all ports.
Stand-alone capability allows the MGX 8850 to act as an edge concentrator to any vendor ATM network which implies service interoperability with other vendor's equipment. All connections for stand-alone are local switching connections.
Features Introduced in Release 1.1.25
None.
Features Introduced in Release 1.1.24
While no new features are incorporated into Software Release 1.1.24, this software release does provide support to two new wide area switches, the MGX 8230 and the MGX 8250, as well as continued support for the MGX 8850 switch.
MGX 8230
he MGX 8230 functions as a feeder to the IGX, BPX or MGX 8850 switches, or can be used for bringing in service. It has a 7-slot (double-height) chassis, and the slots are oriented in the following manner:
•
Two slots are reserved for PXMs.
•
Two single height (which equals 1 double height) slots are reserved for SRM.
•
The remaining slots can be configured with 4 double-height or 8 single-height slots, supporting service modules.
Figure 1 shows the MGX 8230 with its door attached. Note that there are light pipes in the door that display the status of the processor models (PXMs). Figure 2 is a conceptual drawing of an MGX 8230 showing the dimensions and the slot numbering. The slot numbering is as it appears from the front of the MGX 8230; slots 8 and 9 refer to back card slots only.
Note that the following features are not supported in this release, but are planned for future releases:
•
Service Resource Module (SRM)
•
Route processor module (RPM)
•
Voice Interface Service Module (VISM)
•
PNNI (some CLI commands may show options for PNNI, but this feature is not supported.)
Figure 1 MGX 8230 with Door Attached
Figure 2 MGX 8230 Dimensions
Note
Even though the card slots in an MGX 8230 are horizontal and would more appropriately be called single-width and double-width, this manual still refers to the card slots, and the processor and service modules, as single-height and double-height. This is for consistency because the PXM and service module cards are a subset of the MGX 8850 cards that are installed vertically in an MGX 8850 chassis.
Main Features
Release 1.0 of MGX 8230 includes:
•
PXM1 with 4-port OC3-C/STM-1.
–
MMF, SMFLR, and SMFIR back cards are supported.
–
PXM1 ports are used as ATN UNI or feeder trunks.
–
Core redundancy for PXM1.
–
Environmental monitoring.
–
PXM-1 with one OC-12 port.
•
PXM1-2-T3E3 provides interfaces for up to two T3 (each at 44.736 Mbps) or two E3 lines (each at 34.368 Mbps).
•
ATM, Frame Relay, and Circuit Emulation service modules.
–
AUSM-8T1/E1/B with RJ48-T1/E1 and SMB E1 back card with UNI and IMA support.
–
FRSM-8T1/E1 with RJ48-T1/E1 and SMB E1 back cards.
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FRSM-2T3E3 with BNC-2T3/E3 back cards.
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FRSM-HS2 with 2 port HSSI back card.
–
FRSM-2CT3 with BNC-2T3 back card.
–
CESM-8T1/E1 with RJ48-T1/E1 and SMB E1 back cards.
–
CESM-T3E3
•
1:1 redundancy for T3/E3 cards.
•
1:N redundancy for T1/E1 service modules.
•
Graceful upgrade.
•
1000 connections per card, 4000 connections per shelf (T1 service modules).
The MGX 8230 backplane supports a minimum of 1.2 Gbps of non-blocking switching and has a high-end limit of 21 Gbps with the PXM1. Individual line rates can range from DS0 through OC-3.
The MGX 8230 can also support a wide range of services over narrowband and mid-band user interfaces. It maps all the service traffic to and from ATM circuits based on standardized interworking methods.
The MGX 8230 supports up to 64 channelized or non-channelized T1 and E1 interfaces on a single IP + TM multiservice gateway. These interfaces support:
•
Frame Relay UNI and NNI
•
ATM UNI, NNI, and FUNI
•
Frame Relay-to-ATM network interworking
•
Frame Relay-to-ATM service interworking
•
Circuit emulation services
Frame-based services on T3 and E3 high-speed lines are also supported.
The MGX 8230 also supports Inverse Multiplexing for ATM (IMA) to provide ATM connectivity below T3 or E3 rates via the AUSM-8T1/E1 (AUSM/B).
The modular, software-based system architecture enables it to support new features through downloadable software upgrades or new hardware modules.
The Service Resource Module-3T3 (MGX-SRM-3T3/B), when supported in a future release, will be able to support up to 64 T1 interfaces over its three T2 lines and provide 1:N redundancy for the T1 and E1 cards. This feature is described in the MGX 8230 switch documentation, but is currently not supported by the hardware.
Standards-Based Conversion to ATM
The MGX 8230 converts all user-information into 53-byte ATM cells by using the appropriate ATM Adaptation Layer (AAL) for transport over the ATM backbone network. The individual service modules segment and reassemble (SAR) cells to eliminate system bottlenecks. The following list shows the applicable AAL for each service:
•
Circuit emulation services uses AAL1.
•
Frame Relay-to-ATM network interworking uses AAL5 and Frame Relay Service Specific Convergence Sub-layer (FR-SSCS).
•
Frame Relay-to-ATM service interworking uses both transparent and translation modes to map Frame Relay to native ATM AAL5.
•
Frame Forwarding uses AAL5.
Refer to the Cisco MGX 8230 Installation and Configuration Guide for further installation and physical descriptions for the MGX 8230 switch.
MGX 8230 Cards
MGX 8230 Processor Switch Module (PXM1)
The MGX 8230 Processor Switch Module (PXM1) performs shelf control and shared-memory switching functions. It also serves as a data processing and ATM interface card. The PXM1 processor module for the MGX 8230 is identical to the PXM1 for the MGX 8250.
Primarily, the MGX 8230 PXM1 controls the switch and provides 1.2 Gbps of non-blocking, shared memory ATM switching and ATM trunking up to OC-12 speed. In addition, the PXM features:
•
A 4.0-Gigabyte hard disk drive that holds software, firmware for all the cards, and a substantial amount of other information.
•
Environmental monitoring (cabinet temperature, fan speed, and power supply voltages).
•
Hot swappable, 1:1 redundancy.
The PXM1 and its two types of back cards make up the required control card set. The following are model numbers of cards supported by the MGX 8230 for this release:
The following are model numbers of cards supported by the MGX 8230 for this release:
•
PXM1-4-155, PXM1-1-622, and PXM1-2-T3E3
•
PXM-UI (user interface back card)
•
MGX-MMF-4-155 (uplink back card)
•
MGX-SMFIR-4-155 (uplink back card)
•
MGX-SMFLR-4-155 (uplink back card)
•
MGX-BNC-2-T3 (uplink back card)
•
MGX-BNC-2-E3 (uplink back card)
•
MGX-SMFIR-2R-1-622 (uplink back card)
•
MGX-SMFLR-1-622 (uplink back card)
PXM1 User Interface Back Card
The PXM1 User Interface card (PXM-UI) provides the MGX 8230 with the several user- interface ports. It mates with an PXM1 through the backplane and is installed in a back card slot (slot 8 or 9). As seen from the back of the MGX 8230, the PXM-UI will plug into the slot that is on the right side of its corresponding PXM1. The user-interface ports provide the following functions:
•
User and management interface to an ASCII terminal or workstation
•
Network synchronization for the shelf
•
Central office-compatible major/minor alarm interface
The PXM UI has the following physical connectors and interfaces:
•
RJ-45 T1 clock input—BITS clock source
•
RJ-45 Maintenance port—RJ-45 connector, EIA/TIA 232, DTE mode, asynchronous interface, 19200 bits per second, 1 start bit, 1 stop bit, no parity bits.
•
RJ-45 Control port— EIA/TIA 232, DTE mode, asynchronous interface, 9600 bits per second, 1 start, 1 stop, no parity.
•
RJ-45 LAN port—10BaseT, 802.3 Ethernet
•
SMB connector E1 clock input—BITS clock source
•
DB-15 female connector for alarm outputs
MGX 8230 OC-3 Uplink Back Card
The MGX 8230 Uplink back card, which mates with a corresponding PXM1 through the backplane, provides the feeder trunk to the MGX switch. This uplink back card can provide either a multi-mode or single-mode fiber OC-3 interface:
•
MGX-MMF-4-155 (multi-mode fiber uplink back card)
•
MGX-SMFIR-4-155 (single-mode fiber intermediate reach uplink back card)
•
MGX-LMFLR-4-155 (single-mode fiber long reach uplink back card)
FRSM Cards
The primary function of the FRSM is to convert between the Frame Relay-formatted data and ATM/AAL5 cell-formatted data. It converts the header format and translates the address for Frame Relay port/DLCIs, ATM-Frame UNI (FUNI) port/frame address, or frame forwarding port, and the ATM virtual connection identifiers (VPI/VCIs).
The MGX 8230 supports the following FRSM models:
•
Frame Service Module for T1 (FRSM-8T1)
The FRSM-8T1 card provides interfaces for up to eight T1 lines, each of which can support one 56 Kbps or one Nx64 Kbps FR-UNI, FR-NNI port, ATM-FUNI, or a Frame Forwarding port. Note that this unchannelized card cannot be configured to support sub-T rates.•
Frame Service Module for T1, channelized (FRSM-8T1-C)
The FRSM-8T1-C card provides interfaces for up to eight T1 lines, each of which can support up to twenty-four 56 Kbps or Nx64 Kbps FR-UNI, FR-NNI, ATM-FUNI, or Frame Forwarding ports.•
Frame Service Module for E1 (FRSM-8E1)
The FRSM-8E1 card provides interfaces for up to eight E1 lines, each of which can support one 56 Kbps or one Nx64 Kbps FR-UNI, FR-NNI, ATM-FUNI, or Frame Forwarding port.•
Frame Service Module for E1, channelized (FRSM-8E1-C)
The FRSM-8E1-C card provides interfaces for up to eight E1 channelized Frame Relay lines, each of which can support multiple (up to thirty-one) 56 Kbps or Nx64 Kbps FR-UNI, FR-NNI, ATM-FUNI, or Frame Forwarding ports.•
Frame Service Module for T3 and E3 (FRSM-2E3T3)
The FRSM-2E3/T3 card provides interfaces for up to two T3 or E3 Frame Relay lines, each of which can support either two T3 lines (each at 44.736 Mbps) or two E3 lines (each at 34.368 Mbps) FR-UNI, FR-NNI, ATM-FUNI, or Frame Forwarding ports.•
Frame Service Module for channelized T3 (FRSM-2CT3)
The FRSM-2CT3 card supports interfaces for up to two T3 channelized Fame Relay lines, each of which supports 56 Kbps, 64 Kbps, Nx56 Kbps, Nx64 Kbps, T1 ports for a total of 256 ports that can be freely distributed across the two T3 lines.•
FRSM-HS2
The FRSM-HS2 provides unchannelized Frame Relay service for up to 1000 user-connections over two HSSI lines on the SCSI2-2HSSI back card. The maximum rate for the card is 104 Mbps. Each port can operate in either DTE or DCE mode with incremental rates of N x T1 or N x E1 up to 52 Mbps.OC-12 Uplink Back Card
For Automatic Protection Switching (APS) requires the "B" model—an SMFLR-1-622/B.
SMFIR-1-622 Back Card
For Automatic Protection Switching (APS) requires the "B" model—an SMFIR-1-622/B.
BNC-2T3 Back Card
BNC-2E3 Back Card
Two versions of the BNC-2E3 card are available. The BNC-2E3A applies to Australia only, and the BNC-2E3 applies to all other sites that require E3 lines on the PXM uplink card.
ATM Universal Service Module
AUSM/B Front Card
AUSM/B Back Cards
The MGX-AUSM/B-8T1 and MGX-AUSM/B-8E1 use the generic 8-port T1 or E1 line modules that operate with the 8-port service modules. The standard T1 version of the back card has eight RJ-48 connectors. The standard versions of the E1 back card have either eight RJ-48 connectors or eight pairs of SMB connectors. The following back cards are compatible with the AUSM/B:
•
RJ48-8T1 back card for T1
•
RJ48-8E1 back card for E1
•
SMB-8E1 back card for E1
Circuit Emulation Service Module 8T1E1
CESM Models
The MGX 8230 supports the following CESM models:
•
Circuit Emulation Service Module for T1 (CESM-8T1)
The CESM-8T1 card provides interfaces for up to eight T1 lines, each of which is a 1.544 Mbps structured or unstructured synchronous data stream.•
Circuit Emulation Service Module for E1 (CESM-8E1)
The CESM-8E1 card provides interfaces for up to eight E1 lines, each of which is a 2.048 Mbps structured or unstructured synchronous data stream.•
Circuit Emulation Service Module for T3/E3 (CESM-T3E3)
The CESM-8T1E1 card set consists of the CESM-8T1E1 front card and one of the following back cards:
•
RJ48-8T1-LM
•
RJ48-8E1-LM
•
SMB-8E1-LM
Redundancy Architecture
Since the MGX 8230 chassis is a smaller form factor MGX 8850, most of the redundancy features available in MGX 8850 are available in MGX 8230 chassis. The following is a list of available redundancy features on the MGX 8230 chassis.
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Dual PXM
•
Y-cable redundancy on PXM uplink ports
•
1:N redundancy for T1/E1 service modules
•
Eight cell buses per PXM
•
N+1 cooling fan redundancy
•
N+1 AC or DC power redundancy (optional)
•
1:1 Y-cable redundancy for T3/E3 interfaces
MGX 8230 Management
To give you access for control purposes, the MGX 8230 switch supports high- and low-level user interfaces. You can use the Cisco WAN Manager application (formerly StrataView Plus) for connection management, the CiscoView application for hardware configuration, and a command line interface for low-level control of hardware functionality and connection control. An assortment of ports and protocols supports these user-interfaces. For communicating with the MGX 8230 switch, the control port (SLIP protocol only), the LAN (Ethernet) port, and the in-band ATM connection (feeder application only) all support access by the command line interface (CLI) via Telnet, TFTP, and SNMP protocols.
The downloadable firmware on each card determines the functionality, and you can upgrade functionality by downloading new firmware through a TFTP application on a workstation or a PC.
The current status and configuration parameters of the MGX 8230 modules reside in a Management Information Base (MIB). The firmware on each card updates the MIB as changes in status and configuration occur.
MGX 8250
The Cisco MGX 8250 wide-area edge switch supports:
•
Integrated IP+ATM services
•
Frame Relay
•
IP-based virtual private network
•
Video
•
Circuit emulation services for private line replacement
It does not support PNNI, despite the fact that some CLI commands may show options for PNNI.
This chapter contains a brief outline of the features of the Cisco MGX 8250 switch. An illustration of the AC-powered version of the switch appears in Figure 3.
Figure 3 MGX 8250 Switch
The Applications of the MGX 8250 Switch
The MGX 8250 switch operates in two operational applications:
•
As a feeder, the MGX 8250 switch concentrates narrow-band and medium-band ATM, Frame Relay, and into a single, wide-band ATM feeder trunk to an BPX 8600-series switch.
•
As a stand-alone node, the MGX 8250 switch concentrates narrow-band and medium-band ATM, Frame Relay, and voice into a single ATM line to at third-party switch. The MGX 8250 interface in this application is a UNI or an NNI.
For a description of how to configure the switches for a particular application, see the MGX 8250 Switch Installation and Configuration Guide.
The switch is also capable of supporting Cisco Multiprotocol Label Switching (MPLS).
Universal Edge Architecture
The MGX 8250 switch can support a wide range of services over narrowband and mid-band user interfaces. It maps all the service traffic to and from ATM by using standardized interworking methods.
The supported interfaces for user-traffic are:
•
Frame Relay UNI on T3, E3, HSSI, T1, and E1 lines
•
ATM UNI and FUNI and optional inverse multiplexing for ATM (IMA)
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Frame Relay to ATM network interworking and service interworking
•
Circuit emulation services (T1/E1 and T3/E3)
The optional Service Resource Module-3T3 (MGX-SRM-3T3/B) can support up to 80 T1 interfaces over its three T3 lines and provide 1:N redundancy for the T1 and E1 cards.
The modular, software-based system architecture enables the switch to support new features through downloadable software upgrades or new hardware modules.
The MGX 8250 backplane supports a minimum of 1.2 Gbps of non-blocking switching. Individual line rates range from DS0 through OC-12.
Standards-Based Conversion to ATM
The MGX 8250 switch converts all user information into 53-byte ATM cells by using the appropriate ATM Adaptation Layer (AAL) for transport over the ATM backbone network. The individual service modules segment and reassemble (SAR) cells to eliminate system bottlenecks. The following list shows the applicable AAL for each service:
•
Circuit emulation services uses AAL1.
•
Frame Relay-to-ATM network interworking uses AAL5 and Frame Relay Service Specific Convergence Sub-layer (FR-SSCS).
•
Frame Relay-to-ATM service interworking uses both transparent and translation modes to map Frame Relay to native ATM AAL5.
•
Frame Forwarding uses AAL5.
MGX 8250 Cards
The MGX 8250 switch supports core cards and service modules. The Processor Switching Module (PXM) and optional Service Resource Module (SRM) are core cards. In addition to the PXM being a core card, it is also part of a a card set. A card set consists of a front card, a back card, and a daughter card. Service modules are not combined in this manner and are never part of a card set. Instead, service modules provide the interface to the transport technologies of the CPE—Frame Relay, ATM, and so on. The MGX 8250 enclosure contains up to 24 service modules (I/O cards) and 4 optional Service Redundancy Modules (SRMs) provide redundancy. A card set consists of a front card with its attached daughter card and a back card (or line module). The front card contains the processing intelligence and, on the daughter card, the firmware that distinguishes the interface (OC-3, T3, E3, and so on). The back card is a simple card that provides the electrical interface for one or more lines of a particular type. The MGX 8250 front and back cards are the:
•
Processor Switching Module (PXM1)
This front card controls the switch and supports external interfaces for user-access and trunking or UNI ports. The back cards consist of a user interface card (PXM-UI) and a broadband network module (see subsequent list items).•
Processor Switch Module User Interface (PXM1-UI)
The PXM1-UI is the user interface card that has various types of ports to let you access and control the switch.•
Broadband Network Module (MGX-SMFIR-1-622 and MGX-SMFLR-1-622)
The SMFIR-1-622 is a broadband network module for the PXM and provides a SONET OC12/STM4 ATM interface at 622 Mbps.•
Broadband Network Module (MGX-MMF-4-155)
The MMF-4-155 is a broadband network module for the PXM and provides 4 SONET OC3/STM1 ATM interfaces at 155 Mbps.•
Broadband Network Module (MGX-BNC-2T3)
The MGX-BNC-2T3 is a broadband network module for the PXM and provides 2 T3 ATM interfaces.•
Broadband Network Module (MGX-BNC-2E3)
The MGX-BNC-2E3 is a broadband network module for the PXM and provides 2 E3 ATM interfaces. A version for Australia, New Zealand, and elsewhere is available (MGX-BNC-2E3A).•
Frame Service Module for T3 and E3 (MGX-FRSM-2E3T3)
The MGX-FRSM-2E3/T3 provides interfaces for up to two T3 or E3 frame relay lines, each of which can support either 2 T3 lines (each at 44.736 Mbps) or 2 E3 lines (each at 34.368Mbps) FR-UNI, ATM-FUNI, or Frame Forwarding port.•
Frame Service Module for channelized T3 (MGX-FRSM-2CT3)
The MGX-FRSM-2CT3 supports interfaces for up to two T3 channelized frame relay lines, each of which supports 56 Kbps, 64 Kbps, Nx56 Kbps, Nx64 Kbps, T1 ports for a total of 256 ports that can be freely distributed across the two T3 lines.•
Frame Service Module for unchannelized HSSI (MGX-HS2/B)
The MGX-HS2/B supports interfaces for 2 unchannelized HSSI lines, each of which supports approximately 51 Mbps. With both lines operating, maximum throughput is 70 Mbps.•
Frame Service Module for T1 (AX-FRSM-8T1)
The AX-FRSM-8T1 provides interfaces for up to eight T1 lines, each of which can support one 56 Kbps or one Nx64 Kbps FR-UNI, ATM-FUNI, or a Frame Forwarding port. Note that this unchannelized card cannot be configured to support sub-T rates.•
Frame Service Module for T1, channelized (AX-FRSM-8T1c)
The AX-FRSM-8T1c provides interfaces for up to eight T1 lines, each of which can support up to 24 56 Kbps or N x 64 Kbps FR-UNI, ATM-FUNI, or Frame Forwarding port.•
Frame Service Module for E1 (AX-FRSM-8E1)
The AX-FRSM-8E1 provides interfaces for up to eight E1 lines, each of which can support one 56 Kbps or one N x 64 Kbps FR-UNI, ATM-FUNI, or frame forwarding port.•
Frame Service Module for E1, channelized (AX-FRSM-8E1c)
The AX-FRSM-8E1c provides interfaces for up to 8 E1 channelized frame relay lines Each line can support N x 64-Kbps or (up to 31) 56-Kbps FR-UNI, ATM-FUNI, or frame forwarding ports.•
ATM UNI Service Module for T1 (MGX-AUSM/B-8T1)
The MGX-AUSM/B-8T1 provides interfaces for up to eight T1 lines. You can group N x T1 lines to form a single, logical interface (IMA).•
ATM UNI Service Module for E1 (MGX-AUSM/B-8E1)
The MGX-AUSM/B-8E1 provides interfaces for up to eight E1 lines. You can group N x E1 lines to form a single, logical interface (IMA).•
Circuit Emulation Service Module for T1 (AX-CESM-8T1)
The AX-CESM-8T1 provides interfaces for up to eight T1 lines, each of which is a 1.544 Mbps structured or unstructured synchronous data stream.•
Circuit Emulation Service Module for E1 (AX-CESM-8E1)
The AX-CESM-8E1 provides interfaces for up to eight E1 lines, each of which is a 2.048-Mbps structured or unstructured synchronous data stream.•
Route Processor Module (RPM)
The RPM is a Cisco 7200-series router redesigned as a double-height card. Each RPM uses two single-height back cards. The back-card types are: single-port Fast Ethernet, four-port Ethernet, and single-port (FDDI).•
Service Resource Module (MGX-SRM-3T3/B)
The optional MGX-SRM-3T3/B provides bit error rate testing (BERT), 1:N redundancy for T1 and E1 service modules, and a de-multiplexing function for T1 service called bulk mode.•
Smart Serial Interface FRSM-HS1/B 12IN1
A multi-personality back card that supports either X.25 or V.35 interface.MGX 8250 Management
To give you access for control purposes, the MGX 8250 switch supports high- and low-level user interfaces. You can use the Cisco WAN Manager application (formerly StrataView Plus) for connection management, the CiscoView application for hardware configuration, and a command line interface for low-level control of hardware functionality and connection control. An assortment of ports and protocols supports these user-interfaces. For communicating with the MGX 8250 switch, the control port (SLIP protocol only), the LAN (Ethernet) port, and the in-band ATM connection (feeder application only) all support access by the command line interface (CLI) via Telnet, TFTP, and SNMP protocols.
The downloadable firmware on each card determines the functionality, and you can upgrade functionality by downloading new firmware through a TFTP application on a workstation or a PC.
The current status and configuration parameters of the MGX 8250 modules reside in a Management Information Base (MIB). The firmware on each card updates the MIB as changes in status and configuration occur.
Continued Support for the MGX 8850
The Cisco MGX 8850 wide-area edge switch supports:
•
Integrated IP+ATM services
•
Frame Relay
•
IP-based virtual private network
•
Video
•
Circuit emulation services for private line replacement
It does not support PNNI, despite the fact that some CLI commands may show options for PNNI.
An illustration of the AC-powered version of the switch appears in Figure 4.
Figure 4 MGX 8850 Switch
The Applications of the MGX 8850 Switch
The MGX 8850 switch operates in two operational applications:
•
As a feeder, the MGX 8850 switch concentrates narrow-band and medium-band ATM, Frame Relay, and into a single, wide-band ATM feeder trunk to an BPX 8600-series switch.
•
As a stand-alone node, the MGX 8850 switch concentrates narrow-band and medium-band ATM, Frame Relay, and voice into a single ATM line to at third-party switch. The MGX 8850 interface in this application is a UNI or an NNI.
For a description of how to configure the switches for a particular application, see the MGX 8250 Switch Installation and Configuration Guide.
The switch is also capable of supporting Cisco Multi-Protocol Label Switching (MPLS).
Universal Edge Architecture
The MGX 8850 switch can support a wide range of services over narrowband and mid-band user interfaces. It maps all the service traffic to and from ATM by using standardized interworking methods. When the MGX 8850 switch operates as a feeder, it uses a single port to communicate the aggregated traffic over an ATM interface with an MGX 8850 or BPX 8600-series switch.
The supported interfaces for user-traffic are:
•
Frame Relay UNI on T3, E3, HSSI, T1, and E1 lines
•
ATM UNI and FUNI and optional inverse multiplexing for ATM (IMA)
•
Frame Relay to ATM network interworking and service interworking
•
Circuit emulation services
The optional Service Resource Module-3T3 (MGX-SRM-3T3/B) can support up to 80 T1 interfaces over its 3 T3 lines and provide 1:N redundancy for the T1 and E1 cards.
The modular, software-based system architecture enables the switch to support new features through downloadable software upgrades or new hardware modules.
The MGX 8850 backplane supports a minimum of 1.2 Gbps of non-blocking switching up to
45 Gbps. Individual line rates range from DS0 through OC-12.Standards-Based Conversion to ATM
The MGX 8850 switch converts all user-information into 53-byte ATM cells by using the appropriate ATM Adaptation Layer (AAL) for transport over the ATM backbone network. The individual service modules segment and reassemble (SAR) cells to eliminate system bottlenecks. The following list shows the applicable AAL for each service:
•
Circuit emulation services uses AAL1.
•
Frame Relay-to-ATM network interworking uses AAL5 and Frame Relay Service Specific Convergence Sub-layer (FR-SSCS).
•
Frame Relay-to-ATM service interworking uses both transparent and translation modes to map Frame Relay to native ATM AAL5.
•
Frame Forwarding uses AAL5.
MGX 8850 Cards
The MGX 8850 switch supports two types of card sets: the core cards (or core modules) and service modules. The Processor Switching Module (PXM) and optional Service Resource Module (SRM) are core cards. The service modules provide the interface to the transport technologies of the CPE—Frame Relay, ATM, and so on. The MGX 8850 enclosure contains up to 24 service modules (I/O cards) and 4 optional Service Redundancy Modules (SRMs) provide redundancy. A card set consists of a front card with its attached daughter card and a back card (or line module). The front card contains the processing intelligence and, on the daughter card, the firmware that distinguishes the interface (OC-3, T3, E3, and so on). The back card is a simple card that provides the electrical interface for one or more lines of a particular type. The MGX 8850 front and back cards are the:
•
Processor Switching Module (PXM1)
This front card controls the switch and supports external interfaces for user-access and trunking or UNI ports. The back cards consist of a user interface card (PXM-UI) and a broadband network module (see subsequent list items).•
Processor Switch Module User Interface (PXM1-UI)
The PXM1-UI is the user interface card that has various types of ports to let you access and control the switch.•
Broadband Network Module (MGX-SMFIR-1-622 and MGX-SMFLR-1-622)
The SMFIR-1-622 is a broadband network module for the PXM and provides a SONET OC12/STM4 ATM interface at 622 Mbps.•
Broadband Network Module (MGX-MMF-4-155)
The MMF-4-155 is a broadband network module for the PXM and provides 4 SONET OC3/STM1 ATM interfaces at 155 Mbps.•
Broadband Network Module (MGX-BNC-2T3)
The MGX-BNC-2T3 is a broadband network module for the PXM and provides 2 T3 ATM interfaces.•
Broadband Network Module (MGX-BNC-2E3)
The MGX-BNC-2E3 is a broadband network module for the PXM and provides 2 E3 ATM interfaces. A version for Australia, New Zealand, and elsewhere is available (MGX-BNC-2E3A).•
Frame Service Module for T3 and E3 (MGX-FRSM-2E3T3)
The MGX-FRSM-2E3/T3 provides interfaces for up to two T3 or E3 frame relay lines, each of which can support either 2 T3 lines (each at 44.736 Mbps) or 2 E3 lines (each at 34.368Mbps) FR-UNI, ATM-FUNI, or Frame Forwarding port.•
Frame Service Module for channelized T3 (MGX-FRSM-2CT3)
The MGX-FRSM-2CT3 supports interfaces for up to two T3 channelized frame relay lines, each of which supports 56 Kbps, 64 Kbps, Nx56 Kbps, Nx64 Kbps, T1 ports for a total of 256 ports that can be freely distributed across the two T3 lines.•
Frame Service Module for unchannelized HSSI (MGX-HS2/B)
The MGX-HS2/B supports interfaces for 2 unchannelized HSSI lines, each of which supports approximately 51 Mbps. With both lines operating, maximum throughput is 70 Mbps.•
Frame Service Module for T1 (AX-FRSM-8T1)
The AX-FRSM-8T1 provides interfaces for up to eight T1 lines, each of which can support one 56 Kbps or one Nx64 Kbps FR-UNI, ATM-FUNI, or a Frame Forwarding port.•
Frame Service Module for T1, channelized (AX-FRSM-8T1c)
The AX-FRSM-8T1c provides interfaces for up to eight T1 lines, each of which can support up to 24 56 Kbps or N x 64 Kbps FR-UNI, ATM-FUNI, or Frame Forwarding port.•
Frame Service Module for E1 (AX-FRSM-8E1)
The AX-FRSM-8E1 provides interfaces for up to eight E1 lines, each of which can support one 56 Kbps or one N x 64 Kbps FR-UNI, ATM-FUNI, or frame forwarding port.•
Frame Service Module for E1, channelized (AX-FRSM-8E1c)
The AX-FRSM-8E1c provides interfaces for up to 8 E1 channelized frame relay lines Each line can support N x 64-Kbps or (up to 31) 56-Kbps FR-UNI, ATM-FUNI, or frame forwarding ports.•
ATM UNI Service Module for T1 (MGX-AUSM/B-8T1)
The MGX-AUSM/B-8T1 provides interfaces for up to eight T1 lines. You can group N x T1 lines to form a single, logical interface (IMA).•
ATM UNI Service Module for E1 (MGX-AUSM/B-8E1)
The MGX-AUSM/B-8E1 provides interfaces for up to eight E1 lines. You can group N x E1 lines to form a single, logical interface (IMA).•
Circuit Emulation Service Module for T1 (AX-CESM-8T1)
The AX-CESM-8T1 provides interfaces for up to eight T1 lines, each of which is a 1.544 Mbps structured or unstructured synchronous data stream.•
Circuit Emulation Service Module for E1 (AX-CESM-8E1)
The AX-CESM-8E1 provides interfaces for up to eight E1 lines, each of which is a 2.048-Mbps structured or unstructured synchronous data stream.•
Route Processor Module (RPM)
The RPM is a Cisco 7200-series router redesigned as a double-height card. Each RPM uses two single-height back cards. The back-card types are: single-port Fast Ethernet, four-port Ethernet, and single-port (FDDI).•
Service Resource Module (MGX-SRM-3T3/B)
The optional MGX-SRM-3T3/B provides bit error rate testing (BERT), 1:N redundancy for T1 and E1 service modules, and a de-multiplexing function for T1 service called bulk mode.•
Smart Serial Interface FRSM-HS1/B 12IN1
A multi-personality back card that supports either X.25 or V.35 interface.MGX 8850 Management
To give you access for control purposes, the MGX 8850 switch supports high and low-level user interfaces. You can use the Cisco WAN Manager application (formerly StrataView Plus) for connection management, the CiscoView application for hardware configuration, and a command line interface for low-level control of hardware functionality and connection control. An assortment of ports and protocols supports these user-interfaces. For communicating with the MGX 8850 switch, the control port (SLIP protocol only), the LAN (Ethernet) port, and the in-band ATM connection (feeder application only) all support access by the command line interface (CLI) via Telnet, TFTP, and SNMP protocols.
The downloadable firmware on each card determines the functionality, and you can upgrade functionality by downloading new firmware through a TFTP application on a workstation or a PC.
The current status and configuration parameters of the MGX 8850 modules reside in a Management Information Base (MIB). The firmware on each card updates the MIB as changes in status and configuration occur.
Features Introduced in Release 1.1.23
MGX 8850 Release 1.1.23 is a maintenance release of Release 1.1.22. In addition, it introduces the following new features:
•
Dynamic subrate FRSM-T3E3.
•
Clrsmcnf/savesmcnf/restoresmcnf feature support for VISM.
•
Switchcc and softswitch performance enhancement (See Problems Fixed).
•
New Database integrity check commands.
•
Model # recognition for MGX8230 and MGX8250.
Features Introduced in Release 1.1.22
MGX 8850 Release 1.1.22 is a maintenance release of Release 1.1.21. In addition, it introduces the following new features:
•
core dump facility.
•
FRSM2T3 subrate to Kentrox box is now supported. Previously we only supported Digital Link.
•
Clrsmcnf/savesmcnf/restoresmcnf feature support.
Features Introduced in Release 1.1.21
MGX 8850 Release 1.1.21 includes all the features in Release 1.1.12 and earlier. In addition, it introduces the following new features:
•
Support for the IGX-SES.
•
FRSM-HS1B 12inOne (X.21/V.35 programmable feature)
Support for the FRSM-HS1B dual-personality back-card that can be configured for either V.35 interfaces or X.21 interfaces.
•
Support of (real time) rt-VBR as a new class of ATM connection service type for the following service modules:
–
FRSM-2CT3
–
FRSM-2T3/E3
–
FRSM-HS2
•
Support for the "fixed ratio queuing" algorithm for egress queue management on the following service modules:
–
FRSM-2CT3
–
FRSM-2T3/E3
–
FRSM-HS2
•
Support for hot-standby on the following service modules:
–
FRSM-2CT3
–
FRSM-2T3/E3
–
FRSM-HS2
This feature reduces switchover time for the above service modules.
•
Support for Zero CIR on the following service modules:
–
FRSM-2CT3
–
FRSM-2T3/E3
–
FRSM-HS2
–
FRSM-8T1/E1
•
FRSM-2T3/E3 subrate support
This feature supports running the T3 or E3 lines on the FRSM at sub rates. The interfaced DSU/CSU supported are the Digital Link DL3100 for T3 and the Digital Link DL3100E for E3.
Features Introduced in Release 1.1.12
MGX 8850 Release 1.1.12 was a maintenance release of Release 1.1.11. In addition, it introduced the following new features:
•
Introduction of MGX-CESM-T3E3 - Circuit Emulation Module Card, including the following features:
–
Provides 1 standard T3 or E3 interfaces
–
1:1 redundancy using Y-cable
Note
The MGX-CESM-T3E3 is an FCS product.
•
PLCP payload scrambling
•
Support for IP Address discovery of the MC3810 using ILMI
Features Introduced in Release 1.1.11
MGX 8850 Release 1.1.11 was a maintenance release of Release 1.1.10. In addition, it introduced the following new features:
•
Introduction of MGX-VISM-8T1E1 - Voice Service Module Card, including the following features:
–
Provides 8 standard T1 or E1 interfaces with B8ZS, AMI & HDB3 line coding.
–
Support for voice over IP (VoIP) to RFC 1889.
–
Support for both PCM a-law and u-law.
–
Programmable 16, 32,64,128 ms near end echo cancellation.
–
Voice activity detection (VAD) and comfort noise generation using variable threshold energy (Cisco proprietary).
–
Support for signalling using Simple Gateway Control Protocol (SGCP) version 1.0.
–
ATM AAL5 connections for Management and voice IP packets.
–
Support for loop timing, payload and line loopbacks.
–
1:N redundancy using SRM-3T3 capabilities (bulk mode support for T1 lines only).
Note
The MGX-VISM-8T1E1 is an FCS product.
•
RPM/B card and double clock OC6 support with IOS 12.0.5T1.
The RPM has a custom ASIC on it called the ATMizer. This chip is being replaced by the ATMizer II+, AKA "G10" version of the chip. The RPM-B contains this new chip, along with a 16Mbyte Flash SIMM instead of 4Mbyte. The RPM-B can operate at 21Mhz and 42Mhz Cellbus clock rate with 1.1.11 and 12.0.5T1, while the RPM-A can only operate at 21 Mhz.
•
Support for CellBus speed configuration. The CellBus can be configured for double clock speed for all VHS service modules.
•
MPLS (tag edge router only) support for RPM.
Note
MPLS support for RPM is currently an FCS feature.
•
Support of MGX-FRSM-HS/1-B (V.35 support)
•
Major Redundancy Enhancements (SRM failures cause switchover, removal of FRSM-2CT3 backcard causes switchover)
•
APS fixes (removing back card from active PXM causes APS line to not fail, APS memory leak, APS switch on SDBER threshold exceed)
•
Saveallcnf includes RPM configuration
•
PXM core dump subsystem feature
•
MGX 8220 Release 4.1.00 circuit emulation endpoints
Features Introduced in Release 1.1.10
MGX 8850 Release 1.1.10 provided the following features in addition to the ones provided in Release 1.1.01 and earlier:
•
APS redundancy on PXM-OC3 and OC12 interfaces. Only 1+1 redundancy configuration is supported. No 1:1 APS redundancy.
•
Full PXM UNI support in Stand-alone configuration using all ports with policing. The UNI channels on PXM will support CBR, rt-VBR, nrt-VBR, UBR and ABR classes of service.
•
BERT support on FRSM-8T1/E1, CESM-8T1/E1 and AUSM-8T1/E1 and FRSM-2CT3 cards. The BERT support is at whole T1/E1 or port level (n*DS0).
Release 1.1.25 MGX 8850 Hardware
MGX 8850 is a 45 Gbps backplane with 1.2 Gbps switching fabric for Release 1.1.25. The same backplane is used with different switching fabric cards (1.2, 45 Gbps) to achieve scalability. MGX 8850 Release 1.1.25 hardware components and their revisions that are supported are as follows:
Support for embedded Cisco IOS router (Router Processor Module - RPM)
•
The RPM is an embedded Cisco IOS router with integrated ATM Deluxe Port Adapter and Cellbus Controller ASIC for internal connections to the backplane Cellbus. A number of port adaptors (back cards) can be configured with the RPM front card (FDDI, Ethernet, Fast Ethernet).
–
4E Adapter
–
FE Adapter (UTP, MMF)
–
FDDI Adapter (full duplex, half duplex, SMF, MMF)
MGX 8220 Hardware Not Supported on Release 1.1.25 of the MGX 8850
The following cards are not supported in Release 1.1.25:
•
AX-SRM-T1E1
•
AX-SMB-8E1
•
AX-R-SMD-8E1
•
AX-RJ48-8E1
•
AX-R-RJ48-8E1
MGX 8220 Hardware that has been superseded on the MGX 8850 by MGX 8850-specific Hardware
•
AX-SRM-3T3-A and AX-BNC-3T3 card set
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. This change allows the use of slots 9, 10, 25, and 26 for 1:n redundancy and BERT in the MGX 8850 chassis. 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.
New card should have enabled use of bulk distribution in slots 9 and 10. 1:N redundancy should have been supported in those slots with the model A card.
•
AX-SCSI2-2HSSI
Superseded by the MGX-SCSCI2-2HSSI/B, which works with the MGX-FRSM-HS2 front card. A V.35 interface is supported on the MGX-FRSM-HS1/B in this release.
•
AX-IMATM
Superseded by MGX-AUSM-8T1/B and MGX-AUSM-8E1/B
•
AX-IMATM-B
Superseded by MGX-AUSM-8T1/B and MGX-AUSM-8E1/B
MGX 8220 Hardware Not Supported on the MGX 8850
•
AX-FRASM-8T1
•
All four port MGX 8820 cards
•
AX-AUSM-8T1
•
AX-AUSM-8E1
Software Platform Features
MGX 8850 provides high speed native ATM interfaces which can be configured as ATM UNI ports or trunks
Support for 1:N and 1:1 Service Module Redundancy, as indicated in the following table:
Support for Bulk Distribution using SRM-3T3-C card.
Service module and PXM upgrades.
Features Not Supported in this Release
•
RPM 1:1 redundancy
•
RPM statistics
•
Layer 2 support as an autoroute routing node
•
SRM T1E1
•
IPX endpoints with the MGX 8850
•
E1 users circuits
•
T1/CAS Backhaul
•
Interworking with SGCP 1.1+ compliant call agent (Bellcore CA SM1.5)
•
Interworking with Cisco 3810
•
G.726 and G.729 voice compression
•
G729b voice activity detection
•
Voice Circuit Admission Control (CAC)
•
Bearer continuity testing
•
Ring back tone on Ground Start
•
Separate PVCs for signaling and bearer channels
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.
Major Network Management Features
•
CWM Connection Management
•
CiscoView support for equipment management
•
CLI support
•
Service MIB support
•
Connection Management for connections to RPM with associated CM GUI support.
•
Topology subsystem enhancements to support the MGX 8850 as a stand-alone switch.
•
Statistics
For more details refer to the CWM Release 9.2.07 release notes part number 78-6659-07.
Connection Limits
•
Up to 4000 connections per VHS card.
•
Up to 1000 connections per 8 port card (up to 898 per port with LMI enabled)
•
Up to 200 connections per HS1 card
•
Up to 12000 connections per shelf
SNMP MIB
The SNMP MGX 8850 MIB is being provided with the delivery of Release 1.1.24 of the MGX 8850 software on CCO. The MIB is in standard ASN.1 format and is located in the ASCII text files MGX8800Mib.my file which is included in the same directory within CCO. These files may be compiled with most standards-based MIB compilers. For changes in this MIB from release 1.1.23, please refer to the MIB release notes on CCO.
Notes & Cautions
CLI modification and changes in this release
dspfail <slotno>
shows all failed connections per slot basis
dspfabit <slotno>
shows all A-bit failed connections per slot basis
dsplmiloop
shows if lmi loop is present
chkslotcon <slotno>
checks database consistency per slot basis
chkportcon <slotno> <portno>
checks database consistency per slot basis
Chkcon <slot.port.vpi.vci>
checks database consistency per connection basis
dspbecnt
displays bit error count
CLI modification and changes in previous releases
•
A few modifications have been made to the IP configuration commands. (cnfifip and bootChange) See CLI Change section:
–
the cnfifip command has an additional option to up/down one of the ip interfaces (ethernet, slip, atm) dynamically. No reboot is required to up/down interface. Turned down interfaces are persistent across resets.
–
the cnfifip command is now an active only command
–
dspifip will now display the state of each interface and indicate if it is up or down.
–
bootChange now checks the ip values set and will complain if it detects incorrect values.
–
bootChange values are sent and updated on standby card automatically. Both bootlines are kept in sync.
–
bootChange command is now an active only command from CLI.
–
cnfenetgw command has been added to establish the ethernet gateway route permanently. (command is active only)
–
dspenetgw command will display ethernet gateway address set.
–
A shelf can now either have one or two ip addresses for ethernet. The shelf ip address set using cnfifip will always be the active card ip address. The bootChange ip address will be used for the standby card and backup boot if it is different than the shelf ip address. If the bootChange ip address is same as the shelf ip address then the ethernet interface on the standby card or in backup boot will be left in the down state.
–
If the "255.255.255.252" netmask is used for the SLIP interface, the PXM will automatically add host route for its peer whenever the interface is turned ON
–
If the FW fails to reach the CLI prompt or comes up in backup boot, the ethernet interface could be down if the shelf ip address and boot change address are the same. In this case the bootChange command could be used from the shell to set another ip address and then usrEnetEnable should be called to activate that address. (see example)
–
Commands and Examples
–
cnfifip:
Syntax:
cnfifip "Interface IPaddr [NetMask [BroadcastAddr]]"
or cnfifip "Interface Flag"
Interface -- 26/28/37 (26:Ethernet 28:SLIP 37:ATM)
or Ethernet/SLIP/ATM
IP_Addr -- <n>.<n>.<n>.<n> (<n>: integer 0..255)
Net_Mask -- <n>.<n>.<n>.<n> (<n>: integer 0..255)
BroadcastAddr -- <n>.<n>.<n>.<n>
(<n>: integer 0..255)
Flag -- a string "UP" or "DOWN"
Example:
> cnfifip atm 192.9.200.1 255.255.255.128
This configures the ATM interface and brings it UP.
> cnfifip atm up
This will bring up the ATM interface with current information in database.
> cnfifip atm down
This will bring down the ATM interface and preserve the information in the database.
–
delifip
Syntax:
delifip Interface
Interface -- 26/28/37 (26:Ethernet 28:SLIP 37:ATM) or Ethernet/SLIP/ATM
Example:
> delifip 37
This will bring down the ATM interface and delete the information in the database
–
dspifip:
Example:
> dspifipInterface Flag IP Address Subnetmask Broadcast Addr--------------- ---- --------------- --------------- ---------------Ethernet/lnPci0 UP 172.29.37.77 255.255.255.0 172.29.37.255SLIP/sl0 DOWN 172.29.36.253 255.255.255.252 (N/A)ATM/atm0 UP 192.9.200.1 255.255.255.128 0.0.0.0
This command shows the current condition of all 3 interfaces. The data shown for the SLIP interface will apply when it is turned UP with, say, "cnfifip slip on".
–
cnfenetgw
Syntax:
cnfenetgw IPAddr
Example:
> cnfenetgw 172.29.37.1This command will set the default gateway and add the appropriate routes necessary to it.
–
dspenetgw
Example:
> dspenetgwEnet Gateway: 172.29.37.1–
bootChange:
Several lines are essential for the network to function:
- boot device : lnPci
(The only Ethernet interface)
- inet on ethernet (e) : 172.29.37.40:ffffff00
(IP address and subnetmask)
- gateway inet (g) : 172.29.37.1
(Default Ethernet gateway)
The PXM will try to correct bad entries when it boots up. This information will be copied to the standby card and if different than the shelf ip address it will up the interface on the standby with the bootChange ip address. The shellconn version of this command only updates the local bootline values and is not copied to the other card.
–
usrEnetEnable:
Used to bring up the Ethernet interface when CLI prompt is not there or in backup boot if it's not enabled
The following commands which are related to FRSM-2CT3 line level loopbacks.
•
Remote Loopback at DS3:-
This loopback can be configured in FRSM-2CT3 using the following commands.
addds3rmtloop <lineno>
xcnfln -ds3 <lineno> -e 3 -lpb 2
•
Local Loopback at DS3:-
This loopback can be configured in FRSM-2CT3 using the following commands.
addds3loop <lineno>
xcnfln -ds3 <lineno> -e 3 -lpb 3
DS3 Loopback status will be displayed with following commands:
dspds3ln <lineno>
dspalm -ds3 <lineno>
dspalms -ds3
FEAC codes monitoring and Inband loopbacks for DS3 are not supported in FRSM-2CT3
•
Remote Loopback at DS1:-
This loopback can be configured in FRSM-2CT3 using the following commands:
cnfbert (from PXM)
addrmtloop <lineno>
xcnfln -ds1 <lineno> -e 3 -lpb 2
•
Local Loopback at DS1:-
This loopback can be configured in FRSM-2CT3 using the following commands:
cnfbert (from PXM)
addlnloop <lineno>
xcnfln -ds1 <lineno> -e 3 -lpb 3
DS1 Loopback status will be displayed with following commands:
dspln <lineno>
dspalm -ds1 <lineno>
dspalms -ds1
•
Inband loopback for DS1 are supported only using bert diagnostics. The status of inband loopbacks are displayed with dspalm and dspalms commands. It is not displayed with dspln command. Before configuring the DS1 line in Inband loopback from bert diagnostics, user should use following command to enable code detection on FRSM-2CT3:
xcnfln -ds1 <lineno> -e 3 -detect 2
•
Ctrl-X has been disabled from resetting PXM on the firmware.
•
This release has the fix to meet the Bellcore jitter specs. The way to fix the jitter problem is having FW to disable the force_signal_detect_enable register and let the optical receiver to control the signal-detect input. The OC3 transmit data jitter now measured is below 0.10UI.
•
Due to the concerns about the too frequent message exchanging between the two PXM cards, the current command dspbecnt is limited by following:
–
dspbecnt only displays the bit error counts after the last APS switch, i.e. every APS switch will clear the counts for both working and protection line.
–
dspbecnt displays the active line bit error counts correctly. The bit error counts for non-active line is inaccurate and requires a state change (since the last state) in the protection line for display of any bit error counts.
–
A state change indicates a change of line status, such as from SD to SF.
Node Related
At most one BERT test can be performed per shelf at any point in time. BERT can only be activated through the CLI.
Do not execute the restoreallcnf command in the middle of the installation process. If you follow the following steps:
Step 1
saveallcnf
Step 2
restoreallcnf
Step 3
install
Step 4
newrev
The dsplns command will display a line as disabled, but you cannot run an addln command. Do not execute the restoreallcnf command until the install and newrev commands have completed.
The correct order for the restore procedure is:
Step 1
saveallcnf
Step 2
install
Step 3
newrev
Step 4
restoreallcnf
(for more information, refer to CSCdm57683)
Addln should be issued before issuing addapsln.
The following line and alarm related commands have been modified to allow slots 8, 16 and 32 as valid arguments if PXM at slot 8 is active:
•
addln
•
delln
•
cnfln
•
dspln
•
dsplns
•
addlnloop
•
dellnloop
•
cnfsrmclksrc
•
dspsrmclksrc
•
dspalm
•
dspalms
•
dspalmcnt
•
clralmcnt
•
clralm
•
dspalmcnf
Full SRM redundancy requires redundant SRMs. There must be SRMs in BOTH slot 15 and 16 to ensure service module redundancy for the upper shelf AND SRMs in BOTH slot 31 and 32 to ensure service module redundancy for the lower shelf. Lack of the second SRM in either shelf may result in mismatch conditions.
For service module redundancy support, if the active service module is physically removed from the slot then a switchcc would cause the now active service module to be inaccessible. The workaround is to make sure that both the active and standby cards are physically present in their slots. If the active card indeed needs to be removed then at shellconn type: pmmStartScmPolling(slotnumber) after the switchcc.
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 >binput <boot filename> AXIS_SM_1_<slot#>.BOOTInsure that tftp downloaded the appropriate boot code by verifying 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.
CautionIf 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 all the configuration, clrallcnf clears the network IP addresses. IP addresses and netmasks stay the same (dspifip). However, it's recommended by engineering to reconfigure them using the cnfifip command. Network IP is gone (dspnwip), and must be reconfigured using the cnfifip command. Refer to the entry on cnfifip in the Cisco MGX 8850 Command Reference publication on the documentation CD for syntax.
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The copychan command does not work on the MGX 8850
A minimum of two and up to four IP addresses are needed to be configured for MGX 8850 (one or more of the following: ethernet, ATM, SLIP) and the boot IP address. The user should use "bootChange" to set up IP gateway when the PXM card is just installed. The IP default gateway should be on the same subnet as the PXM board. Use the bootChange command to set correct IP address, netmask, and default gateway.
Do not install a Y cable on the UIA CP port for PXMs. If you do both serial ports will be enabled and you will not be able to communicate at all with the shelf through the console ports. If after switchcc standby PXM loses the downlevel port then it is due to a downlevel Beta version of UIA backcard that were shipped during field-trial only. Upgrading the UIA back card to the latest version should fix this problem.
To configure the external clock source, use the interface label 7.35. Do not use 0.33 or 7.33
There are also routeShow/routeAdd/routeDelete commands for modifying routing tables.
You must reboot your PXM after each modification with "bootChange" for it to take effect. Also make sure the subnet mask is 255.255.0.2
. bootChange- Only enter the ethernet IP address, netmask and default gateway.- Type "." to erase incorrect entries.tigers.1.7.PXM.a > bootChange'.' = clear field; '-' = go to previous field; ^D = quitboot device :lnPciprocessor number :0host name :C <-- Please put "C".file name :inet on ethernet (e) :172.29.37.40:ffff00 <-- Ethernet IP Addr/Netmaskinet on backplane (b):host inet (h) :gateway inet (g) :172.29.37.1 <-- Default Gatewayuser (u) :ftp password (pw) (blank = use rsh):flags (f) :0x0target name (tn) :startup script (s) :other (o) :- Type in reboot, after this the command "ping" will work:tigers.1.7.PXM.a > ping 171.71.54.53 1171.71.54.53 is aliveConfiguration save and restore is only supported through the CLI (CWM does not support configuration save and restore).- 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 10 tftp sessions.
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 only supported for adjacent slots.
Statistics are not supported for the RPM.
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 since it locks the actuator. When the card is reinserted the PXM automatically comes out of sleep mode.
Syntax of addlink command has changed as follows:
New Syntax:
Syntax: addlink <T3LineNum> <T1Slot> <NumberOfT1s> <TargetSlotNum>
<TargetSlotLineNum>
<T3LineNum> where = Slot.Line
Slot = 15,31
Line = 1 - 3
<T1Slot> where T1Slot = 1 - 28
<NumberOfT1s> where NumberOfT1s = 1-8
<TargetSlotNum> where TargetSlotNum = 1-6|11-14|17-22|27-30
<TargetSlotLineNum> where TargetSlotLineNum = 1-8
PAR command cnfnwip has been disabled in this release, please use "cnfifip" instead.
If you lose power, or remove the on-line PXM you lose the broadcast address. Use the "cnfifip" command to configure the broadcast address. To re-define your ATM address and IP Address that are in the same subnet, you have to change the ATM address to a temporary address not in the same subnet, then add back your IP Address with the original Broadcast address, then go back and correct your ATM address.
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 5 cards.
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 one should 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 1st FREEDM and (B) and (C) are connected to the 2nd 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 & 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).
The MGX-FRSM-HS1/B is capable of supporting a total throughput (card-level) of 16 Mbps. However, it is possible to configure 4 lines each supporting up to 8 Mbps, thus oversubscribing the card. This has been raised in bug #CSCdm71476 and a restriction/warning will be added in a future release.
Addlnloop on an FRSM-HS1/B line works only when there is a (valid) cable plugged in to the backcard on that line. This is a hardware limitation on the backcard and has been mentioned in the Release-notes in bug# CSCdm44993
RPM Related
The RPM is a NPE-150 based router card capable of sustaining 150,000 pps. With RPM versions earlier than 12.O.7T1, some limitations in Inter-Process Communication between the can cause the PXM to declare that the RPM has Failed, when the RPM is at high loads. To avoid this, with RPM software releases earlier than 12.0.7T1, throughput is limited to 62,000 pps, and it is recommended that MPLS configurations are limited to 100 interfaces.
With RPM software releases from 12.0.7T1, those limitations are removed.
In a separate limitation, the number of directly-connected OSPF networks supported by an RPM is currently limited to 27. This means that any or all of the 700 subinterfaces supported by the RPM can run OSPF, but the number of distinct OSPF networks supported is limited to 27. (A work-around is available and is discussed below.) The limit of 27 arises because of the overheads of supporting separate link-state databases for separate networks. In an application where the RPM is a Provider Edge Router in an MPLS Virtual Private Network service, a much better solution in any case is to use a distance-vector routing protocol between the customer routers and the RPM. A distance-vector routing protocol provides exactly the information required for this application: reachability information, and not link-state information. The distance-vector routing protocols supported by the RPM are BGP, RIP v1 and RIP v2, as well as static routing. With RPM software releases from 12.0.7T1, distance-vector routing protocols can be used with as many different networks as subinterfaces. Currently, the RPM supports 700 subinterfaces, and hence 700 networks with BGP, RIP or static routing.
Note that if the RPM is acting as a Provider Edge Router in an MPLS Virtual Private Network service, and even if OSPF is running in a customer network, it is not necessary to run OSPF between the customer router and the RPM. If the customer edge devices run Cisco IOS, they can redistribute OSPF routing information into RIP using the IOS commands redistribute rip in the OSPF configuration, and redistribute ospf in the RIP configuration. Similar configurations are possible for BGP. Using such configurations, the RPM with IOS software release 12.0.7T1 supports 700 customer networks which use OSPF internally. (For more information on readvertisement, see the "Configuring IP Routing Protocol-Independent Features" chapter in the "Cisco IOS Release 12.0 Network Protocols Configuration Guide, Part 1".) Redistribution is not unique to Cisco CPE, and other vendors' equipment also supports redistribution.
Recommendations for Booting:
The current implementation provides the following options:
From PXM Disk
NetBoot (TFTP server)
Booting from PXM Disk is faster than NetBoot.
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Recommendations for saving RPM configuration
The current implementation provides the following options:
a. Save on flash / boot-flash.
b. Save on PXM Disk.
c. Save on network (TFTP server)
d. Save on RPM NVRAM (comes up faster; only for limited configuration size)
It is recommended to save the configuration on flash and on the PXM Disk, as well as on the network server. This ensures that the configuration can be restored; even in the case of multiple failures.
For example if an RPM card has problems, one can copy the configuration from either the PXM disk or from the network to new RPM card. In case of multiple hardware failures (both RPM and PXM cards have problems) one can copy the configuration from the network server.
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Replacing the existing RPM with a new card or a card with old configuration in flash:
The existing configuration (of the old card) can be restored on the newly inserted card by following the instructions given below:
Step 1
Insert the new card into an unreserved empty slot. A previously used slot can be unreserved by giving the clrsmcnf command.
Step 2
Copy the old RPM's configuration (from the PXM disk or the network server) to the new card's bootflash (For example copying from PXM disk: "copy c: <image name> bootflash:").
Step 3
Configure the new card to use the configuration in its bootflash using the "boot config bootflash: <config-file-name>" command.
Step 4
Save the changes using "write mem" command.
Step 5
Insert the new card into the old slot.
Please note that in RPM context the "config save/restore" feature of the PXM only restores the PXM part of the RPM configuration/connections. The RPM part of the configuration should also be saved from RPM CLI through copy command (For example: "copy run c: <config-filename>" for saving to PXM Disk) for future restoration.
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RPM Connection Resynchronization:
The RPM Connection Re-sync process is supported in the 12.04T and higher releases. This feature checks for consistency between the RPM and PXM connection databases. ----------------------------------------------------------------------------------------------------------------------
Limitations
restoreallcnf
Do not execute the restoreallcnf command in the middle of the installation process. If you do, the dsplns command will display a line as disabled, but you cannot run an addln command. Do not execute the restoreallcnf command until the install and newrev commands have completed.
The correct order for the restore procedure is:
Step 1
Execute the saveallcnf command.
Step 2
Execute the install command.
Step 3
Execute the newrev command.
Step 4
Execute the restoreallcnf command
.(for more information, refer to CSCdm57683)
The Service MIB does not support resource partitions.
LIP is supported on the maintenance port, but there is no PPP support on the maintenance port.
BIS messages are constantly being sent from BPX to various nodes. This affects the frequency of TFTP updates, which may affect CWM performance and/or CWM database consistency.
Unable to provision virtual trunks in SWSW 9.1.10.
clrsmcnf
As a speedy way to wipe out all configuration on an SM, you can use clrsmcnf. This command works in the following scenarios:
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1.1 SM not in slot
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1.2 SM in slot and in active (good) state
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1.3 SM in slot but in failed state or boot state or whatever 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 FRSM8t1e1 in the slot with some configuration and the customer wants to use this slot for an AUSM8t1e1 card.
clrsmcnf cannot delete a port or channel due to corruption or error locally on the SM. It is able to delete the port/channel from within the PXM, but it cannot delete a port or channel due to corruption/error on the PXM itself. You can save an SM configuration and restore it back to the same slot on the same node. If the SM configuration is corrupted on disk, but the run-time image is okay and the file contented is corrupted, this is supported.
The following are NOT supported on the MGX 8850:
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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.
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If the SM configuration is corrupted on disk, but the run-time image is okay and the FAT is corrupted.
If you have more than 500 connections on a service module, before issuing clrsmcnf you need to change the session timeout default value.
Use CLI command timeout 0 (no timeout)
clrsmcnf
after it is done
Use CLI command timeout 600 (to set the timeout value back to the default)
Note
clrsmcnf does not work with the VISM card.
Core Dump Mask
There are no system performance implication unless you take a core dump, currently the default error mask to take core dump is attached, you can change the mask or take it manually.
Set the core dump mask to its default value. If you enable core dumps with power on reset and shell reset core dumps enabled you will end up with a PXM that continuously dumps the core and resets. The only way out is to use a download boot that does not have the core dump feature.
Default setting 0x262eeOFF 0001 Power ON ResetON 0002 DRAM Parity ErrorON 0004 WatchDog Timeout ResetON 0008 Resource OverflowOFF 0010 Clear All ConfigurationON 0020 Missing TaskON 0040 Reset because of PXM Low VoltageON 0080 Reset By Event Log TaskOFF 0100 Reset from ShellON 0200 UnknownOFF 0400 Reset from PXMOFF 0800 Reset SystemOFF 1000 Switch Core CardON 2000 Secondary Cache ErrorON 4000 Software Error ResetOFF 8000 S/W reset due to upgradeOFF 10000 Restore All ConfigurationON 20000 Device Driver ErrorNODENAME.1.8.PXM.a > core hot-dumpDo you want to proceed (Yes/No)? yDumping PXM Core Image[0]:......................................................................................... .......................................Done.NODENAME.1.7.PXM.s > core save 2 core.zipCreating core.zip.................................Core dump basics.There are two steps to save a core dump.1. The system will store a raw core dump image on the disk (this image ison a portion of the disk that is not used for the filesystem).2. After the raw core dump image is saved on the disk, use the cli command"core" to zip the image and save it in a file on the disk.Use the "core mask" command to display and to set the mask which determineswhich conditions will cause an autmatic core dump.NODENAME.1.7.PXM.s > core maskAutomatic Core Dumping is enabled..The Current Core slot is 0The Current Core mask is 0x4004OFF 0001 Power ON ResetOFF 0002 DRAM Parity ErrorON 0004 WatchDog Timeout ResetOFF 0008 Resource OverflowOFF 0010 Clear All ConfigurationOFF 0020 Missing TaskOFF 0040 Reset because of PXM Low VoltageOFF 0080 Reset By Event Log TaskOFF 0100 Reset from ShellOFF 0200 UnknownOFF 0400 Reset from PXMOFF 0800 Reset SystemOFF 1000 Switch Core CardOFF 2000 Secondary Cache ErrorON 4000 Software Error ResetOFF 8000 S/W reset due to upgradeOFF 10000 Restore All ConfigurationOFF 20000 Device Driver ErrorNODENAME.1.7.PXM.s > core mask 0x2e2eeAutomatic Core Dumping is enabled..The Current Core slot is 0The Current Core mask is 0x2e2eeOFF 0001 Power ON ResetON 0002 DRAM Parity ErrorON 0004 WatchDog Timeout ResetON 0008 Resource OverflowOFF 0010 Clear All ConfigurationON 0020 Missing TaskON 0040 Reset because of PXM Low VoltageON 0080 Reset By Event Log TaskOFF 0100 Reset from ShellON 0200 UnknownOFF 0400 Reset from PXMOFF 0800 Reset SystemOFF 1000 Switch Core CardON 2000 Secondary Cache ErrorON 4000 Software Error ResetON 8000 S/W reset due to upgradeOFF 10000 Restore All ConfigurationON 20000 Device Driver ErrorNODENAME.1.7.PXM.s >Use the "core mask default" command to set the mask back to the default.NODENAME.1.7.PXM.s > core mask defaultAutomatic Core Dumping is enabled..The Current Core slot is 0The Current Core mask is 0x262eeOFF 0001 Power ON ResetON 0002 DRAM Parity ErrorON 0004 WatchDog Timeout ResetON 0008 Resource OverflowOFF 0010 Clear All ConfigurationON 0020 Missing TaskON 0040 Reset because of PXM Low VoltageON 0080 Reset By Event Log TaskOFF 0100 Reset from ShellON 0200 UnknownOFF 0400 Reset from PXMOFF 0800 Reset SystemOFF 1000 Switch Core CardON 2000 Secondary Cache ErrorON 4000 Software Error ResetOFF 8000 S/W reset due to upgradeOFF 10000 Restore All ConfigurationON 20000 Device Driver ErrorNODENAME.1.7.PXM.s >Use the "core enable" command to enable autmatic core dumps.NODENAME.1.7.PXM.s > core enableAutomatic Core Dumping is enabled..NODENAME.1.7.PXM.s >Use the "core disable" command to disable automatic core dumps.NODENAME.1.7.PXM.s > core disableAutomatic Core Dumping is disabled..NODENAME.1.7.PXM.s >Use the "core hot-dump" to dump the raw image to the disk.NODENAME.1.7.PXM.s > core hot-dumpDo you want to proceed (Yes/No)? yDumping PXM Core Image[0]:......................................................................................... .......................................Done.NODENAME.1.7.PXM.s >Use the "core" command to list the current list of raw core dumps save onthe disk.NODENAME.1.7.PXM.s > coreSaved Core Images:Slot Reset Reason Dump Time-------------------------------------------------------------0 Unknown WED DEC 29 09:38:30 19991 WatchDog Timeout Reset FRI DEC 10 08:51:52 19992 WatchDog Timeout Reset TUE DEC 14 08:01:39 19993 WatchDog Timeout Reset TUE DEC 14 12:38:01 19994 Reset from Shell TUE DEC 14 14:45:30 19995 WatchDog Timeout Reset WED DEC 22 08:20:26 1999Automatic Core Dumping is enabled.The Current Core slot is 0NODENAME.1.7.PXM.s >Use the "core save" command to save the specified raw image to thespecified zip file.NODENAME.1.7.PXM.s > core save 0 cccCreating ccc.................................NODENAME.1.7.PXM.s >To upload the zip file, you must use FTP (TFTP has a limit of 16 MBytesfor file size).Enter shellconn:NODENAME.1.7.PXM.s > shellConn->Set the and enable the user name:-> setLoginsetLoginUser Name=========ciscovalue = 0 = 0x0->The user name is "cisco" and the password is "ciscoinc".Now you can FTP the image. Be sure to use binary mode.After the image has been uploaded, disable the user name:-> clrLoginclrLoginUser Name=========value = 0 = 0x0->
Problems Fixed in Release 1.1.25
Problems Fixed in Release 1.1.24
Problems Fixed in Release 1.1.23
Problems Fixed in Release 1.1.22
Problems Fixed in Release 1.1.21
Problems Fixed in Release 1.1.20
Problems Fixed in Release 1.1.01
One of the slots on the node had a CESM-8E1 card with some connections. The connections, ports and lines on the CESM were deleted and it was replaced with an AUSM-8T1 card.The AUSM card went to mismatch state. On trying to execute the clrsmcnf command the following error message was seen: flyers4.1.7.PXM.a > clrsmcnf 20, Do you want to proceed (Yes/No)? Yes Command Failed: Resources exist on card (CSCdm29289).
Happens on an MGX 8850 switch with two PXMs (Core Redundancy). If the Active PXM while synchronizing the databases to Standby, resets, then the Standby PXM goes to Fail State. The reset PXM comes up as Active and will show the other PXM slot as Empty (CSCdm30193)
ShelfIntegrated alarm becoming Major or Minor either after switchcc or resetsys. (CSCdm33756)
One connection, CESM-PXM UNI ended up deleted in CESM, but SPM still has some incomplete data structure. Since there is only one connection per port for the CESM, and the connection is in such state that can not be removed or re-added, the port and its bandwidth become unusable (CSCdm33289)
Configuring the DS3 framing format on an FRSM-2CT3 to M13 does not permit the card to operate correctly with other devices using that framing format. (CSCdm35575
When modifying a particular protected memory address on CESM8p which causes CESM HW watchdog reset, PXM got reset or lost SAR functionality. (CSCdm15367)
Adding or modifying a connection to an RPM fails if the RPM enable password differs from the password that Conn MGR has cached. Example: A connection to an RPM is configured, then the enable password is changed on the RPM -- any subsequent connection adds or changes fail because of a bad enable password. (CSCdm34114)
When modifying the bandwidth allocation (usually from a smaller percentage to a much bigger one) of a port with cnfport command, it is not always possible to create more connections under that port. (CSCdm32894)
The standby PXM console is not enabled for use. Downlevel PXM board (CSCdm34030)
Adding connections through a conn proxy script. Card went to failed state after adding around 700 connections. (CSCdm32773)
SMs are shown in failed state though physically they are active. This was observed for FRSM8p and FRSM-VHS in slot 5 and 6 and 1. (CSCdm21684)
While using a script to do stress switchcc test, there is a one time occurrence where it was found that the original active card did not come back as standby, but went to fail state. (CSCdm35298)
The problem is related to the PVC's traffic parameters. We are still investigating what the PCR, average, and burst values should be set to for VBR connection. This values are related to nature of the traffic which is sent to the RPM. (CSCdm35352)
When the connection is deleted, the trap does not go to SV+. (CSCdm27489)
Major differences when add vbr.2 connections on PXM by CLI and CWM (CSCdm28075)
If cnfcon command is given with the CIR value of less than 8 and greater than zero then the command is never completed and later on one cannot do any modifications, display, etc. (CSCdm34047)
Restoreallcnf does not restore the saved config. Occurs when restoring a configuration taken from another physical shelf. The card the restoreallcnf was done on will not become active but the other card will which contains the previous configuration. (CSCdm37114)
AUSM Connection addition fails for VP connection from CWM. (CSCdm36674)
At low frequencies, the jitter characteristics does not fully comply with the standards. (CSCdm38833)
Problems Fixed in Release 1.1.00
Stand-alone Statistics collection does not work if the PXM is in slot 8 (CSCdm20017).
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 since it locks the acctuator. When the card is reinserted the PXM automatically comes out of sleep mode.
In Release 1.0.00 Configuration Save and Restore works only for the same firmware image even if there are no database changes from one version to the other version. In Release 1.1.00 Configuration Save and Restore can be done on different firmware images if the firmware images have compatible databases.
VPI range was limited to 0 to 255 on PXM UNI and NNI on the feeder ports in Release 1.0.00. There is no VPI range limit in Release 1.1.00. (CSCdk63920)
A flood of SNMP requests can cause SNMP and CLI to be unavailable for some time (CSCdm13663).
After a user adds PXM UNI channel, VCC with VCI=0, user cannot add any more VCCs with same (CSCdm14123)
Was unable to delete a VP connection for PXM UNI channels using CWM (CSCdm15120)
While executing "cc" command to a Service Module (SM) on a telnet session, the telnet session hangs, and the console of the active PXM card has Tlb load exception message. (CSCdm15150
Telnet session gets cut off without any error messages or obvious network problem (CSCdm15166)
When adding connections using scripts utilizing Conn-Proxy, without delay between two connection additions, and when there are line alarms at either endpoint, there is a probability that the CESM card may reboot. (CSCdk12363)
FRSM-2CT3 is dropping frames due to frame aborts detected by HDLC controller. (CSCdm13123)
Traffic on connection on FRSM-8T1E1 stopped after removal and insertion (CSCdm18521)
Cannot have more than one session on FRSM-VHS (CSCdk77924)
A channel is shown in alarm even though there is no line alarm and port alarm locally on the FRSM8p service module, and there is no remote alarm on the far end of the connection. (CSCdm14383)
Port statuses at service module site might be different with those at PXM and VSI controller site.(CSCdm15183)
A port was seen that had no alarm on FRSM8p, but dspparifs on PXM CLI shows the interface of this port in fail state. (CSCdm15620)
Attempt to configure the external clock source using the label 0.33 does not work. (CSCdm15669)
Some FRSM-8T1E1s don't come up when the MGX8850 is power cycled. (CSCdm16401)
Using script to add ports on FRSM8P Service Module card, in case a port addition fails, FRSM8 is not backing off properly and leave the port still added locally on the card even though the port is not added on PXM side and PAR (the interface corresponding to this port will not show up in dspparifs CLI on PXM, but dspports on SM shows the port added). (CSCdm03268)
Connections in alarm while lines are OK. (CSCdm10735)
Service module & the PXM reserve different bandwidth for the same connection.(CSCdk92115)
The card, after power recycle does not come up. It gets stuck in standby. (CSCdm10416)
When removing a service module or removing a line, VSI controller prints out "swerr 20208" sometimes. (CSCdm16902)
When an MGX 8850 shelf with CESM-8T1E1s is left running for over a day with Configuration Uploads going continuously, there is a possibility of allocated large buffers not getting released. (CSCdm17868)
The interface state (port state) is inconsistent between the VSI controller and the platform as well as that at service module. (CSCdm16033)
A tftp download of backboot displays an S-objlib_OBJ_UNAVAILABLE error (CSCdm16295)
While RPM is reloading after a card reset or as a result of card removal, PXM gets reset intermittently. (CSCdm15040)
CLI commands on a PXM hang after aborting a command using Ctrl-C. (CSCdm16726)
PXM reset when OC12 trunk back card was inserted. (CSCdm20010)
Broad band connection statistics fail when the PXM is in slot 8 and statistics are enabled (CSCdm20017)
Problems Fixed for RPM in 12.0.5T1
These anomalies are fixed in IOS 12.0.5T1. For generic IOS issues, refer to the 12.0.5T1 release notes.
•
CPUHOG and Traceback error during connection synch-up. (CSCdm56618)
•
RPM performance degrades when two RPMs are side-by-side (CSCdk93628)
•
c75 int tunnel <num> shortcut fails create when num is slot number (CSCdm26198)
•
Executing show diag 3 resets RPM (CSCdm64903)
•
Copy RPM config to c: drive overlay problem (CSCdm63212)
•
Connection only on RPM and not on PXM shown as mismatch (CSCdm47650)
•
RPM interface name changes are inconsistent (CSCdm49834)
•
Dynamic VCD stored on the PXM disk cause connection mismatch (CSCdm72383)
•
Spurious memory access while inserting FE card (CSCdm51327)
Problems Fixed for RPM in 12.0.4T
These anomalies are fixed in IOS 12.0.4T. For generic IOS issues, refer to the 12.0.4T release notes.
•
RPM in adjacent slots share single OC3 cell-bus bandwidth, which cause a 30% drop in throughput at line speed. It is recommended not to use RPM in adjacent slots at high input rate configurations (CSCdk93626).
•
Only VCI zero is supported for VPI greater than zero, therefore VP connections are limited to one VC.
•
Under certain unknown condition RPM may not get the MAC addresses from the PXM. The occurrence of this conditions is quite low. It is recommended to set up the MAC address manually when such condition is detected. (CSCdk53731).
•
IPC buffers exhaust after executing CC command around 70 times. This requires a reload of RPM to re-establish IPC connectivity to PXM. This condition does not cause any interruption of traffic (CSCdk89950).
•
Running an extended ping from an IPC console connection may overload the IPC channel (CSCdk76558)
•
Virtual template is not supported through SNMP MIB.
•
The tstcon command to RPM is not supported in this version (CSCdm00845)
•
SNMP over IPC channel is not supported in this version, therefore CV application is not supported (CSCdk47301).
•
Reported CRC error counts may not be correct in this version (CSCdk70267)
•
Tstcon option on CMGUI for PXM-FR connection is not displayed (CSCdk71714)
Compatibility Notes
1.
MGX 8850 Software Interoperability with other products
2.
Software Boot and Runtime Firmware Requirements:
1.
RPM Boot and IOS Image.
Note
1.1.22 platform image is co-required with the specia120-5.XT image.
Compatibility Matrix
This multiservice gateway comparison matrix is designed to identify capabilities supported in the MGX 8220, 8230, 8250 and 8850 platforms.
Special Installation and Upgrade Requirements
Existing customers should use the upgrade procedure on page 92 to upgrade from 1.1.12/1.1.21/1.1.22/1.1.23/1.1.24 to 1.1.25. For new customers the image will be pre-installed as 1.1.24 and they need to use the PXM installation procedure to upgrade to future maintenance releases.
No graceful downgrade is supported from 1.1.25 or any higher version to any down level version of software below 1.1.22 because of MIB changes. This also implies that if you have to abort after newrev command (and the commit command), you have to do an ungraceful downgrade.
An upgrade from 1.1.25 to 1.1.30 for 8230 nodes is (not generally available as of October 2, 2000) not available due to a software problem. The solution to this software problem will be available in a 1.1.3x Release.
Note
Direct upgrade from 1.1.12 to 1.1.25 is not supported. If you must upgrade from 1.1.12 to 1.1.25, first upgrade from 1.1.12 to 1.1.22 and then from 1.1.22 to 1.1.25.
Below is the procedure for ungraceful downgrade:
Step 1
If they have a saved configuration then do:
abort
reload old firmware code (boot code can stay at 1.1.23)
restoreallcnf
Step 2
If they don't have a saved configuration then do:
abort
reload the old code
goto shellConn
setPXMPrimary on both boards
issue clrallcnf on the active
Single PXM Installation Procedure
Step 1
Save you current configuration.
SaveallcnfStep 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.zip45433 APR-09-1999 05:28:42 NODENAME.zipIn the file system :total space : 819200 K bytesfree space : 787787 K bytesStep 3
On the workstation, upload the saved configuration to the workstation:
unix-prompt> tftp shelf.ip.addresstftp> bintftp> get CNF/NODENAME_0409990528.zipReceived 45433 bytes in 0.4 secondsStep 4
Download the 1.1.25 PXM runtime image to the PXM.
tftp <node_name or IP address>binput 1.1.23.fw POPEYE@PXM.FWquitStep 5
Download the ComMat.dat file to the C:/fw directory of the Active PXM. Use the tftp put command:
tftp <node_name or IP address>binput ComMat.datquitStep 6
On the PXM type the following when the transfer is done:
copy ComMat.dat /FW/ComMat.datStep 7
Execute the install 1.1.25 command.
Step 8
Answer Yes to the question the install command will ask.
Installation Procedure For Redundant PXMs:
This section applies to upgrades from 1.1.10 to 1.1.11 or 1.1.12 or 1.1.21 or 1.1.22 or 1.1.23.
CautionDo not remove old firmware until the upgrade is done.
During 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 also get the MISMATCH. To correct the mismatch, you must check your backcards, they must be identical.
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.
To set the PXM address, use the bootChange command:
node-prompt> bootChange'.' = clear field; '-' = go to previous field; ^D = quitboot device : lnPciprocessor number : 0host name :file name :inet on ethernet (e) : 172.29.37.220:ffff00inet on backplane (b):host inet (h) :gateway inet (g) : 172.29.37.1user (u) :ftp password (pw) (blank = use rsh):flags (f) : 0x0target name (tn) :startup script (s) :other (o) :Set the "inet on ethernet (e) :" field with the first part of the entry (before the :) as the IP address, and the second part as the subnet mask.
Set the "gateway inet (g) :" with the gateway address.
This must be done on both PXMs. This can also be done in backup boot from the VxWorks prompt "->".
To set the shelf IP address:
node-prompt> cnfifip 26 shelf.ip.address subnet.mask broadcast.addressThe second argument is the shelf IP address.
The third argument is the subnet mask.
The fourth argument is the broadcast address.
Step 1
Save your current configuration.
saveallcnfStep 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.zip45433 APR-09-1999 05:28:42 NODENAME.zipIn the file system :total space : 819200 K bytesfree space : 787787 K bytesStep 3
On the workstation, upload the saved configuration to the workstation:
unix-prompt> tftp shelf.ip.addresstftp> bintftp> get CNF/NODENAME_0409990528.zipReceived 45433 bytes in 0.4 secondsStep 4
Verify that one PXM is Active and the other Standby.
Step 5
On the workstation, download the PXM FW:
unix-prompt> tftp pxm.ip.addresstftp> bintftp> put pxm_1.1.23.fw POPEYE@PXM.FWSent 1982672 bytes in 18.3 secondsMake sure that the transfer is successful, by looking at the message displayed on the PXM console after the transfer:
Program length = 1982672Calculated checksum = 0xd9779bc6 stored checksum = 0xd9779bc6Fw checksum passedStep 6
Download the ComMat.dat file to the C:/fw directory of the Active PXM. Use the tftp put command:
tftp <node_name or IP address>bincd fwput ComMat.datcopy ComMat.dat to FW directory on the PXM.quitStep 7
Restart the standby PXM. Wait until it is in standby state before preceeding.
Step 8
After the transfer is done, type the following on the PXM:
copy ComMat.dat /FW/ComMat.dateEnsure that the ComMat.dat is copied to both PXMs.
Step 9
On the Active PXM, do "install 1.1.24".
The Standby card will reset at this point, and go to hold state.
Step 10
After the Standby card is reset and successfully enters the hold state, on the Active PXM, do "newrev 1.1.24."
The Active card will be reset and go to hold state.
After the newrev the firmware should now show the new revision on dspcd.
Step 11
After the Active PXM is reset and successfully enters the hold state, on the new Active PXM, do "commit 1.1.24".
PXM Flash Download Procedure
Step 1
Download the new bootcode:
unix-prompt> tftp shelf.ip.addresstftp> bintftp> put pxm_bkup_1.1.22fw POPEYE@PXM.BTSent 642232 bytes in 6.3 secondsThe byte count above is just an example. It will be different for different images. Make sure that the boot is successfully downloaded. You should see a message like the following on the console:
Program length = 642230Calculated checksum = 0x2a5a41f2 stored checksum = 0x2a5a41f2Fw checksum passedStep 2
Issue install bt "revision".
Service Module Firmware Download Procedure
Step 1
Download the selected revision of service module firmware into the service module in the selected slot.
tftp <node_name or IP address>binput <backup boot> POPEYE@SM_1_<slot#>.BOOTquittftp <node_name or IP address>put <FW file> POPEYE@SM_1_0.FWquitYou cannot do two puts in the same tftp session.
Step 2
Install bt SM slot version.
Step 3
Answer Yes to the question the install command will ask.
Note
Please consult your Support Representative before performing any software upgrade.
Service Module Installation/Upgrade and Flashdownload Requirements.
CautionService Module downgrade from 1.1.25 to any downlevel version 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:
tftp <ip address of the MGX 8220 shelf >binput <boot filename> AXIS_SM_1_<slot#>.BOOTNow you must insure that tftp downloaded the appropriate boot code by verifying the flash checksums.
Login to the shelf.
cc <slot #>'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 upgrade. Service module firmware images cannot be downloaded as specific versions in MGX 8850 Release 1.1.24 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:
unix-prompt> tftp shelf.ip.addresstftp> bintptp>put frsm_8t1e1_10.0.01.fw POPEYE@SM_1_0.FWSent 1982672 bytes in 18.3 secondsMake sure that the transfer is successful, by looking at the message displayed on the PXM console after the transfer:
Program length = 1982672Calculated checksum = 0xd9779bc6 stored checksum = 0xd9779bc6Fw checksum passedRepeat for each service module type and for each slot independent firmware.
For a slot-specific image (in this example the service module is tied to slot 1),
tftp <ip address of the MGX 8850 shelf >binput frsm_<version>.fw POPEYE@SM_1_1.fwfor a slot-dependent image,
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.
•
MGX 8850 MGX-FRSM-HS2, MGX-FRSM-2CT3, MGX-FRSM-2T3E3 need to have Release 10.0.01 firmware for the runtime image and Release 10.0.01 firmware for the backup boot image.
•
If you need to upgrade both flash and runtime image of MGX 8220 Release 4.0.xx service modules to Release 10.0.01 to operate within the MGX 8850 chassis please follow the procedure below, which is also outlined in the Cisco MGX 8850 Installation and Configuration publication on the documentation CD.
Step 2
For non-graceful upgrades, just reset the card and the service module will come up with the new image.
Step 3
For graceful upgrades, a secondary card should be backing up the service module that needs to be upgraded. Configure the redundancy and issue the 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.
Known Anomalies for Platform Software and Service Module Firmware
The following is the list of known anomalies in the MGX 8850, Release 1.1.25 delivery. 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 DescriptionCSCdk54268
Symptom:
When sending cells with VPI=0, VCI=0 and CLP=1 on a UNI port, dspportcnt reports the cells as being discarded due to VpiVciErr and the cellrate also gets updated. However, CLP=0 cells are discarded gracefully and no port stats reported.
Conditions:
The local port is an ATM port. The other end is configured as IMA port.
Workaround:
Configure the other end of the port as an ATM port.
CSCdk71643
Symptom/Condition:
This is suppose to be an added feature that gives robust end to end connectivity with full recovery in cases of error. But unfortunately, with the current design it will take some extra effort and time to provide this. It will be part of future enhancement and may be available in the next release. Just a little note about why, any Traps sent to PAR are directed by LCN number which is not available without a complete end to end connection, which currently limits the generation of Traps for incomplete connections (after a stipulated timeout period).
For now, due to absence of these traps a little more responsibility goes to the end user who is creating end to end connections. It is important that if and when a connection is added or removed both Master and Slave end of the connection should be added or removed respectively. Only one side of a connection should not be removed to create a new connection with the other side. Hence creating and deleting connections under any circumstance is complete only with the creation and deletion of both end of the connections. Failure to do this can result in unneeded dangling connections.
CSCdk82484
Symptom:
The RPM incorrectly identifies the physical slot position when it is placed in an 8230 or other SweetPea node. This causes communication with the PXM to fail.
Conditions:
PXM and/or RPM software is running on an 8230 or other SweetPea node.
Workaround:
PXM and RPM software should be upgraded to versions that support the 8230 slot numbering scheme. The minimum level of software should be 1.1.30 on the PXM and Cisco IOS Release 121-4.1(T).
CSCdk86638
Symptom:
When using CWM to add connections, if the connection addition request times out, subsequent addition of the same connection may fail as well, complaining that the connection already exists (even though it timed out).
Description:
This is caused by two factors:
1. CWM assumes that when time out, connections are not added on the switch on which the timeout occurs, and thereby only removes other segments of the timed out connection on other involved nodes.
2. On MGX switch, when CWM reports connection timeout, it does not necessarily mean a timeout on the switch. The CWM timeout may be caused, for example, by the network delay etc. from switch and CWM. The connection may actually be provisioned on the switch.
Workaround:
Don't use the same vpi/vci/dlci used by the timed out connections. This can be fixed by CWM to perform a retrieval to check if the connection is actually provisioned or not on the switch, after connection addition times out.
CSCdk94100
Symptom:
When ILMI signaling and polling is enabled at one port and not enabled at the other end, the port on which signaling was configured does not go into the failed state.
Condition:
When address registration is also configured along with the ILMI signaling and polling at one end and the other end is not configured for any signaling.
Workaround:
Do not configure address registration along with ILMI signaling and polling only at one end.
CSCdm05358
Symptom:
When modifying a particular protected memory address on CESM8p which causes CESM HW watchdog reset, PXM got reset or lost SAR functionality.
Description:
When this happens, CESM sent a huge amount of traffic onto the management connection which is supposed to be used for intercard communication activities such as polling.
This traffic causes the SAR to spend all its resources on doing the cleaning/flushing in ISR (interrupt service).
This address should never be modified using the shellConn 'modify' command. It was used unknowingly in debug/test process.
Workaround:
Don't try to modify this protected address in shellConn (m 0xb300060) (0xb300060 is ATMizer CPU address for SAR on CESM8P).
As a general guideline, shellConn commands like 'modify memory' should not be used by the customer.
CSCdm06097
Symptom:
When the service module is in a mismatch state, and switchcc occurs, the log file gets filled.
Condition:
When switchcc occurs and the service module goes into mismatch state, SM logs the same message more than once to the PXM. An example of this message follows.Message which gets logged is like this:
02/01/1999-14:28:42 12 cmm FRSM-6-4167ASC sent slot number to SM : Old S.N.= 12 New S.N.=1202/01/1999-14:28:41 11 cmm FRSM-6-4167ASC sent slot number to SM : Old S.N.= 11 New S.N.=1102/01/1999-14:28:41 12 cmm FRSM-6-4167ASC sent slot number to SM : Old S.N.= 12 New S.N.=12Workaround:
This log file is not going to affect the functionality or performance of the card or any. This log message simply can be ignored, as it only is useful for debug purposes.
CSCdm10722
Symptom/Condition:
The install, newrev and commit commands for service module upgrade (there is no concept of downgrade here, as there exits only one valid, service module image on the disk at a time), do not follow, the same state machine as PXM commands in the current release.
Hence, it is mandatory, that for service modules, these commands are given in the documented order, which is:
(1) install
(2) newrev
(3) commit
WARNING: If these, commands are not given in the above specified order, we can be in a situation where we can have two different images running on the primary/secondary combination. However, on the disk, there is only one valid image for the service modules.
Workaround:
Assuming, that these commands were given out of order, and now we have two different images, running, on primary / secondary combination.
f1 - Old image version
f2 - Newly downloaded image
(1) Reset the secondary card, so that it comes up, with f2.
(2) Do a softswitch between the two cards, so that secondary takes over and becomes active. At the same time, primary is reset, and comes up with f2.
(3) If you may, you can now, do a softswitch, to revert back to the original primary, to restore normal state.
CSCdm11410
Symptom:
When listing a directory, some filenames contain either illegal characters or a timestamp for the name instead of a standard dos file name. These file entries will fail to be removed when passed to the remove command.
Conditions:
No specific known conditions are responsible for this problem.
Workaround:
Tools are available to clean condition up on the disk. Contact Cisco engineering.
CSCdm20583
Symptom:
When the dspcd command gets executed on the active PXM, with a standby SRM card number or vice versa, the error message is confusing:
Invalid value of slot number.
This actually indicates that the slot is not accessible. See further problem description below.
Condition:
When the dspcd command is executed with the other SRM slot numbers.
Workaround:
No Workaround is available. This is just an unclear error message problem. No logical errors.
Further Problem Description:
When the dspcd command gets executed on the active PXM and when the argument for the command is the standby SRMs slot number, the above error message is displayed. That is because from slot 7 PXM only slot 15 and 31 SRMs are accessible. Similarly for slot 8 PXM, only 16 and 32 are accessible.
CSCdm22510
Symptom:
Connection traps are not sent out when receiving A bit update from CPE.
Conditions:
The end result of this is that CWM will not be notified about the channel status change (failure or normal), neither will PXM/PAR.
The remote end is notified via in band OAM.
This applies to all service modules.
Workaround:
No Workaround
For more information on this bug, refer to CSCdm22510.
CSCdm31437
Conditions:
SV+ needs a trap when a line is added or deleted.
Symptoms:
In a Feeder case, SV+ is informed of a line addition through Inband communication. However, in case of stand-alone configuration SV+ needs a trap to determine addition or deletion of lines.
Workaround:
There is currently no Workaround for this.
CSCdm31793
Symptom:
When you configure a BERT on any line, all the channels on the local as well as the remote MGX88xx are going into alarm. However, connections on the PXM on both ends do not indicate any alarm.
Conditions:
Configure BERT on any line which is having some connections.
Workaround:
None.
CSCdm33351
Symptom/Condition: For VISM.
When an endpoint is added to a line that is already in an alarm condition, an Endpoint Added Trap message and an Endpoint is Active message are sent to the manager from VISM. However, the Endpoint Failed Indication Trap message is not sent.
Workaround:
None.
CSCdm33605
Symptom/Condition: For VISM.
When a switchover to a redundant VISM card takes place due to a reset/failure of the active VISM card, the display on CWM is not correct.
Workaround:
None
CSCdm33638
Symptom/Condition: For VISM.
When a switchover to a redundant VISM card takes place due to a reset/failure of the active VISM card, the switchover takes place but the display of active lines is not consistent between the shelf and CiscoView.
Workaround:
None.
CSCdm41079
Symptom:
When you configure CESM T1 D4/AMI line code and framing, the line will not come up. The card is not generating a T1 signal.
Conditions
When configuring CESM T1 D4/AMI line.
Workaround:
None other than use ESF/B8ZS.
CSCdm42849
Symptom:
An execution of the dlmi command to display LMI messages results in a system reboot.
Conditions:
Enable lmitrace using lmitrace command in order to start capturing LMI messages. dlmi results in system reboot.
Workaround:
dlmi is a debug command which should not be used when large number of connection are present in the system. This problem is only seen with large number of connections.
CSCdm43053
Symptom:
Connection addition fails.
Conditions:
200 connections are already provisioned in the FRSM-HS1.
Workaround:
None.
Further Problem Description:
FRSM-HS1 card only supports a maximum of 200 connections on Popeye1. Memory limitations in HS1 SRAM and DRAM place an upper limit on the number of Popeye connection data structures which can be stored in memory.
CSCdm48639
Symptom:
Better error checking needs to be provided for SM boot and firmware download. It's possible to download the boot image as firmware and vice versa.
Workaround:
The boot images must be downloaded with the .BOOT extension and the firmware with the .FW extension.
CSCdm53758
Symptom:
Channel alarms do not get propagated to the middle segment if NNI signaling is enabled.
Conditions:
This happens when the channel level traps are disabled. This will be fixed once a bulk trap mechanism is implemented to indicate channel alarms.
Workaround:
None.
CSCdm55480
Symptom:
While "downloadflash" is executing on the PXM or while the TFTP of the flash image to the service module is in progress, in circumstances when the PXM or the respective service module is reset, it leaves the flash in an unknown state. The card that was reset will not bootup the next time.
Conditions:
The problem will happen when the PXM or the respective SM is reset using the resetcd or switchcc commands while the flash is being written
Workaround:
None. Make sure that the flash is intact before executing the resetcd or switchcc commands, or any other command which will result in the reset of the card.
Further Problem Description:
If the card is reset when the flash is being written, it leaves the flash in the corrupted state. Therefore, the card does not boot up. All the soft reset commands, such as switchcc, resetcd, or addred, do not check if any flash write is going on before resetting the card.
CSCdm56094
Symptom
The far end device can not be put into a loopback using the "Far End Inband Loopback" or the "Far End ESF Loopback" options under the "DEVICE TO LOOP" menu in the "cnfbert" command. If these options are chosen as part of a BERT pattern test, then the test will not be configured as it will fail to sync the pattern.
Condition
The inband and ESF loopbacks are activated/de-activated by transmitting the loopback codes for the minimum number of seconds specified by the ANSI T1.403 specification. However, due to variations in the way time is measured by the AUSM and the far-end devices, some devices do not detect the code for the desired number of seconds and hence they do not activate/deactivate the loopback.
Workaround
This problem may not be seen on all (far-end) devices. If it is seen, then there is no workaround other than trying to repeat the test configuration till it is successful.
CSCdm69318
Symptom:
FRSM-2CT3 is stuck in boot state.
Conditions:
If a switchcc is issued at the same time that an FRSM-2CT3 is going through a reboot, the FRSM gets stuck in boot state.
Workaround:
Do switchcc only after FRSM-CT3 is comes up
CSCdm84982
Symptom:
The CLI command tstdelay displays time in microseconds instead of milliseconds.
Condition:
CLI shows the delay in microseconds, while the GUI shows the delay in milliseconds. However, the values are almost same.
Workaround:
Convert the displayed time using this formula:
<Time in milliseconds> = (Time displayed + 1000 - 1) / 1000.
This formula converts the time in milliseconds with round off. After converting the time, consider the time in milliseconds.
CSCdm85931
Symptom:
There are display errors for FRSM-HS1 card for dspchancnt 17.
Condition:
Unknown. This happens very rarely.
Workaround:
None.
CSCdm91930
The LED status in CWM are different for lines in same status in Active card and hotstandby.
CSCdm92345
Symptom/Condition:
The VHS SM have either DAX or FEEDER connections on the logical port which is simulated with some kind of signalling. Now if simulate line in logical (diagnostic) loopback the CWM shows connections Failed but after deleting the diagnostic loopback from line connections do not come back in OK state event although traffic runs well through the connections. CLI shows the correct status of the connections but CWM does not show the correct status of the connections ones connections go to the Fail state.
Workaround:
None.
CSCdp00912
Core redundancy should be allowed in mismatch state
Workaround: None
CSCdp03640
Details on this anomaly is not available at this time.
CSCdp11502
Symptom:
AUSM UBR1 connections modified though proxy fail with error message "Wrong Egress Service."
Enter the Fix description:
The lower bound in the v function has been changed from 0 to 1 in order to take care of UBR connections. Initially, the lower bound was 1 so it used to give an error for UBR connections since the default value for Egress Service Rate is 0. An additional check has been added in the k function so that the non-UBR connections have their lower bound as 1.
CSCdp11859
Symptom:
The ABCD bits that are produced on the egress of a CCS-to-CAS connection seem to have a random/unpredictable pattern. As this also applies to the MFA signal, attached devices might go OOMF.
Workaround:
There is currently no Workaround for this.
CSCdp15496
Symptom:
Does not ask for the password to protect platform feature. (clicmd: dspfeature)
Description:
This is a CLI enhancement not a bug.
Condition:
Not applicable.
Workaround:
None
CSCdp17122
Symptom:
Softswitch and switchback commands accept invalid slot numbers.
Condition:
Workaround:
None. Before executing the softswitch or switchback commands make sure that the slot numbers are valid by executing the dspred command and verifying the slot numbers and their states.
Further Problem Description:
The softswitch and switchback commands do not check for valid sot numbers before executing the command. Therefore, the slot might get reset even though the slot is not the primary of the redundancy group or the secondary of the redundancy group for the switchback command.
CSCdp23328
Symptom:
Inconsistency in the syntax used for command dsplns versus the commands addln, delln, and dspln.
Condition:
The commands that are used to configure the PXM physical interfaces have inconsistency in their syntax. Some commands require a '-' sign before the line type parameter. The others do not.
Workaround:
Check the help text for the commands, or refer to the command help in the manual before using the command.
Further Problem Description:
Some commands expect the '-' sign before the line type parameter. Other commands don't require the '-' sign. After the fix, all commands should have a consistent parameter syntax.
CSCdp30538
Symptom:
When the memShow command is issued, it displays the detailed memory statistics on all partitions. The PXM hangs when <ctrl>C is pressed in the middle of the display.
Conditions:
This symptom occurs when executing the memShow command with a non-zero argument; for example, memShow 1, from the CLI prompt. The command memShow without any argument works fine, but displays only the summary information on the memory blocks. The detailed display can be executed only with a non-zero argument.
Also, while recreating the problem, it was observed that when PAGEMODE is OFF, the user more likely to experience this problem.
Workaround:
Do not execute memShow with arguments from the CLI prompt. From the VxWorks shell, the command works fine. Also, do not execute the command with arguments when the PAGEMODE is OFF.
Further Problem Description:
When memShow with arguments is issued, either the process which is handling the output or the memShow routine infinitely waits. The reason for this infinite wait is currently unknown. After the problem occurs, the shelf cannot be pinged or telneted into. The Active PXM has to be rebooted by pulling out the card.
CSCdp31043
Symptom:
Issuing the command dspalm on FRSM-HSSI card requires the x21 as the interface type for HSSI interface.
Condition:
The alarms for the FRSM-HSSI card for the line require x.21 in stead of HSSI as the interface type for the dspalm command. The CLI command dspalm should accept option -hssi on the card FRSM-HSSI, but instead, only accepts the x.21 option.
Workaround:
The -x.21 option can be used for HSSI interface. This is only for user level but, after taking the option it has been taken care to use appropriate MIB object to display the required info for the CLI command dspalm.
CSCdp32043
Sv+ node sync always failed because of timeout, dut to tftp very low. This condition was caused by manually issuing multiple switchccs on the active PXM during config uploads from a SM to CWM. This condition happens when at least three such uploads to a SM is terminated by the swithchccs. Hitting this window is extremely rare as config uploads start and finish with in a very short duration.
The recovery from this condition is to reboot the SM.
The chances of happening this in the field is very remote.
Engineering has a solution for this problem, which would be thoroughly tested before it is released.
CSCdp34543
Install backup boot fails when it tries to program the flash on the standby card.This problem is with the database manager and the file transfer code. If an active PXM gets reset while the database manager is copying files to the standby, the new active card database manager will be left in a state where it cannot mirror files to the standby.
Workaround
Before trying the install command, use the shellconn dbmFileShow command on the active. If it shows any file in the state of being copied, you will have the problem. Do a switchcc to clear the problem.
CSCdp35123
Symptom:
On an MGX 8850 shelf, the user addition limit is 50. If the 50th user is added under any user group, then the user addition goes through successfully, but subsequently disappears after a few minutes. This is verified via the dspusers command in on the PXM.
Workaround:
The user should log in as user under group1-3, then do an adduser with a user ID which will disappear after a few minutes without giving a warning. If any additional user is added, then it will erase the previous user added under anyuser without a warning.
CSCdp35772
Not enough information to find the cause. As the cause is unknown, there is no workaround. This should not affect the normal running of the system as the background memory check checks for memory corruption and leaks.
CSCdp36477
Symptom:
switchcc on 8850 causes a Sig_F aps line switch on BPX
Conditions:
This happens rarely on our shelves.
Workaround:
None
CSCdp37528
Will be fixed in 1.1.30
Symptom:
At softswitch for FRSM-VHS cards (hotStandby case) two traps are seen: primary to secondary trap number is 50045, secondary to primary trap number is 50046. Duplicate 50045 traps are sent when softswitch is executed on FRSM-2CT3
Conditions:
softswitch "from" "to"
Workaround:
None.
Further Problem





