Cisco WAN Switching Modules

Document ID: 10851

Contents

Introduction
Prerequisites
      Requirements
      Components Used
      Conventions
Troubleshoot Trunk Problems
BTM Trunk Alarm Types
      Statistical and Integrated Alarms
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Related Information

Introduction

This document defines statistical and integrated trunk error alarms reported by the Cisco IGX 8400 Series Switch broadband trunk module (BTM).

Prerequisites

Requirements

There are no specific requirements for this document.

Components Used

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

Conventions

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

Troubleshoot Trunk Problems

You can use these commands to troubleshoot common trunk problems:

BTM Trunk Alarm Types

You can use the dsptrkerrs slot-num command to display BTM trunk alarm types. The statistical alarms are listed in the left-hand column and the integrated alarms are listed in the right-hand column of the command output:

labigx       TN      SuperUser       IGX 8420  9.2.34    Nov. 16 2000 12:37 GMT 



TRK  4                 Clear - OK                        Clrd:11/16/00 12:30:29

Statistical Alarm Count ETS   Status    Integrated Alarm  Count ETS   Status

Out of Frms           0     0           Comm Fails            0     -

Loss of SIG           0     0           Loss of SIG (RED)     0     -

TX Voice Pkt Drp      0     0           AIS         (BLUE)    0     -

TX TS Pkt Drp         0     0           Out of Frms (RED)     0     -

TX Non-TS Pkt Drp     0     0           Rmt OOF     (YEL)     0     -

TX CC Pkt Drp         0     0           VTRK Path Fails       0     -

TX BData A Pkt Drp    0     0          

TX BData B Pkt Drp    0     0          

Packet Err            0     0          

Line Code Errs        0     0          

P-bit Parity Errs     0     0          

C-bit Parity Errs     0     0          

BIP-8 Code Errs       0     0          

Cell HEC Errs         0     0          

Rx Voice Pkt Drp      0     0          

Rx TS Pkt Drp         0     0          

Rx NTS Pkt Drp        0     0          

Rx Hi-Pri Pkt Drp     0     0          

Rx BData A Pkt Drp    0     0          

Rx BData B Pkt Drp    0     0          

PLCP Out of Frame     0     0          

Rx Spacer Pkt Drp     0     0          

CGW Dscd Pkts         0     0          

CGW Dscd Cells        0     0          

CGW Abrt Frms         0     0           Last failure time: Date/Time Not Set

                                                                                

Last Command: dsptrkerrs 4

If the dsptrks command shows the trunk as Clear - OK, no immediate action is required. Increasing error counts in the Statistical Alarm column typically cause minor alarms. Minor alarms indicate a trunk is experiencing errors but it has not failed.

If error counts in the Statistical Alarm column exceed the threshold specified in the cnflnalm command display, a major alarm is declared and the trunk is removed from service. Once a trunk is removed from service, all connections are routed from it or failed if an alternate trunk is unavailable. Errors such as the ones found in the Integrated Alarm column typically cause major alarms.

If a new trunk experiences persistent Integrated Alarms, use the cnftrk slot-num command to verify the trunk configuration.

Note: BTMs do not support virtual trunks. Therefore, the VTRK Path Fails integrated alarm is not applicable and is not defined in this document.

Statistical and Integrated Alarms

This section lists the BTM trunk statistical and integrated alarms, with hyperlinks to documents you can use to obtain more information about them.

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Related Information

• WAN Switching Network Synchronization Fundamentals
• International Telephony Union (ITU) Recommendation G.704
• Cisco WAN Switching Solutions - Cisco Documentation
• Guide to New Names and Colors for WAN Switching Products
• Downloads - WAN Switching Software
• Technical Support - Cisco Systems