PXM1E "Failed" State Recovery Procedure

Document ID: 45922

Introduction
Prerequisites
      Requirements
      Components Used
      Conventions
Problem
Solution
Related Information

Introduction

This document describes how to recover the PXM1E module from the Failed state that is caused by moving the PXM1E from an MGX 8830 chassis to an MGX 8850 chassis.

Prerequisites

Requirements

Readers of this document should be knowledgeable of the following:

Cisco PXM1E module
Cisco MGX 8800 series switches

Components Used

This document is not restricted to specific software and hardware versions.

Conventions

For more information on document conventions, see the Cisco Technical Tips Conventions.

Problem

The following dspcd command output example from a PXM1E shows the card in the Failed state:

dspcd

HJO                         System Rev: 03.00   Oct. 13, 2003 15:12:53 CDT 
MGX8850                                         Node Alarm: UNKNOWN 
Slot Number    7    Redundant Slot:  8 
                    Front Card          Upper Card          Lower Card 
                    ----------          ----------          ---------- 

Inserted Card:      PXM1E-T3E3-155      UI Stratum3         --- 
Reserved Card:      PXM1E-T3E3-155      UI Stratum3         FRU-8T3E3-4OC3 
State:              Failed              Active              Empty Resvd 
Serial Number:      SAG06290ERX         SAG06320BJC         --- 
Prim SW Rev:        3.0(23.202)         ---                 --- 
Sec SW Rev:         3.0(23.202)         ---                 --- 
Cur SW Rev:         3.0(23.202)         ---                 --- 
Boot FW Rev:        3.0(23.202)         ---                 --- 
800-level Rev:      A0                  C0                  --- 
800-level Part#:    800-18604-04        800-08932-02        --- 
CLEI Code:          BA4AY80BAB          BA7IBCLAAA          --- 
Reset Reason:       On Reset From Shell 
Card Alarm:         UNKNOWN 
Failed Reason:      SHM_CDF_BKPL_NVID_MISMATCH 
Miscellaneous Information: 

Type <CR> to continue, Q<CR> to stop: 
HJO                         System Rev: 03.00   Oct. 13, 2003 15:12:53 CDT 
MGX8850                                         Node Alarm: UNKNOWN 

Crossbar Slot Status:      EMPTY 

Alarm Causes 
------------ 
                                   
_UNKNOWN_.7.PXM.if > dspcd 7

When the PXM1E is moved from an MGX 8830 chassis to an MGX 8850 chassis, the Failed Reason indicates a mismatch on the backplane—SHM_CDF_BKPL_NVID_MISMATCH. The node is in the UNKNOWN state.

You must use the shellConn prompt shmFailRecoveryHelp command, followed by option 3 (shmRecoverIgRbldDisk), to recover the PXM1E to the ACTIVE state. The following example shows the shellConn command and option:

shmFailRecoveryHelp

 _UNKNOWN_.7.PXM.if > sh 
pxm1e> shmFailRecoveryHelp 
  

* Shell commands to recover from SHM failures: 
* Recovery Method               Recovery Function 
* ===============               ================= 
* 1. Clear all configurations   shmRecoverClrallcnf 
* 2. Rebuild from Disk          shmRecoverRbldDisk 
* 3. Ignore Nativity 
*    and Rebuild from Disk      shmRecoverIgRbldDisk 
* 4. Program NVRAM              shmRecoveryNvramHelp 

value = 1 = 0x1 

pxm1e> shmRecoverIgRbldDisk

Related Information

Updated: Oct 04, 2005

Document ID: 45922

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