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Cisco 2600 Series Multiservice Platforms

Field Notice: Watch Dog Timeouts on 2600/3700 Series Routers with AIM Module


Updated May 20, 2003

February 13, 2003



Products Affected

Product

Top Assembly

Printed Circuit Assembly

HW Revision

Part Number

Rev

Part Number

Rev

AIM-ATM

800-06558-01

A0

73-4689-01

A0

A0

AIM-ATM

800-06558-02

A0

73-4689-03

A0

B0

AIM-ATM

800-06558-02

A0

73-4689-03

A0

C0

AIM-ATM=

800-06558-01

A0

73-4689-01

A0

A0

AIM-ATM=

800-06550-02

A0

73-4689-03

A0

B0

AIM-ATM=

800-06558-02

A0

73-4689-03

A0

C0

AIM-ATM=

800-06558-02

A0

73-4689-03

A0

D0

AIM-VOICE-30

800-13259-02

A0

73-6346-02

A0

A0

AIM-VOICE-30=

800-13259-02

A0

73-6346-02

A0

A0

AIM-VOICE-30=

800-13259-02

A0

73-6346-02

A0

B0

AIM-ATM-VOICE-30

800-06560-02

A0

73-4690-02

A0

A0

AIM-ATM-VOICE-30=

800-06560-02

A0

73-4690-02

A0

A0

AIM-ATM-VOICE-30=

800-06560-02

A0

73-4690-02

A0

B0

Problem Description

An error may occur during power-on initialization which causes the router to lock up. This problem is intermittent.

This problem can only occur with certain router and module combinations which are described below.

On the Cisco 2610, Cisco 2610XM, Cisco 2611, Cisco 2611XM, Cisco 2612, Cisco 2613, Cisco 2620, Cisco 2620XM, Cisco 2621, Cisco 2621XM, Cisco 2650, Cisco 2650XM, Cisco 2651, and Cisco 2651XM platforms, this problem can only occur if the NM-HDA-4FXS module is present along with a module from the Products Affected list above.

On the Cisco 3725, Cisco 3745 and Cisco 2691 platforms, this problem can only occur if one of the following modules is present along with a module from Products Affected list above.

  • AIM-VPN/BP

  • AIM-VPN/HP

  • AIM-VPN/EP

This problem can occur on no other platforms or combinations other than those listed above. Once a router has passed power-on initialization successfully and is in operation it will continue to operate normally, but could fail in the future if the power is cycled.

Background

This problem is a result of a sequencing error which can occur during power-on initialization of the router. This problem has been corrected by a hardware modification to the AIM modules listed in the Products Affected section above.

Problem Symptoms

Router crashes to ROMMON during power-on initialization. Manual intervention is required to bring the router back into operation (power cycling). The following error will be recorded:

System returned to ROM by watchdog timer expired

Workaround/Solution

Replace the affected hardware.

As of approximately February 3, 2003, new products that were manufactured are guaranteed to be free of this problem. Refer to How to Identify Hardware Levels below for instructions on how to view the version of in-service product. Product shipped from Service Logistics may still exhibit this problem. Coding RMAs as shown below guarantees a replacement which is not affected by this problem.

Service Level:

Mfg New - 3rd Bus Day NON BILLABLE

Failure Class:

Administrative Request

Failure Code:

Field Notice Alert

How To Identify Hardware Levels

Use the show diags command. Below is part of a sample show version command with the 800-level part number highlighted in bold. Compare this number to the Top Assembly Number shown in the Products Affected section above. In this example, the AIM module is potentially affected by this problem:

ATM AIM: 0
         Voice AIM with 4 DSPs
         Hardware Revision        : 1.0
         Top Assy. Part Number    : 800-13259-02
                 Board Revision           : A0
         Deviation Number         : 0-0
         Fab Version              : 02
         PCB Serial Number        : JAB053709Q4
         RMA Test History         : 00
         RMA Number               : 0-0-0-0
         RMA History              : 00
         EEPROM format version 4
         EEPROM contents (hex):
           0x00: 04 FF 40 02 7C 41 01 00 C0 46 03 20 00 33 CB 02
           0x10: 42 41 30 80 00 00 00 00 02 02 C1 8B 4A 41 42 30
           0x20: 35 33 37 30 39 51 34 03 00 81 00 00 00 00 04 00
           0x30: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
           0x40: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
           0x50: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
           0x60: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
           0x70: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF

For More Information

If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods: