Cisco Catalyst 8500 Series Campus Switch Routers

Revised March 22, 2002

June 30, 1999

Products Affected

Serial Numbers

These serial numbers only pertain to revision 5.6 CSR RPs. All other CSR RPs earlier than 5.6 should be replaced.

Problem Description

The following problems have been associated with clocking issues on RPs for Catalyst 8540CSRs and Catalyst 8540MSRs:

• The CPU hangs while booting.

• The CPU has exception while booting.

• There is exception during normal operation.

• All protocols stop working (for example, Service Specific Connection Oriented Protocol (SSCOP) will go to idle, Private Network-Network Interface (PNNI) will go to one-way-in, and so on).

Background

During the debugging of failed RPs, a deficiency was found in an oscillator circuit component. This has been rectified and purged from inventories.

Problem Symptoms

These problems and symptoms are due to the VCXO problem on the CPU.

These are known symptoms attributed to the CPU clock problem:

• The CPU hangs while booting.

  This usually happens when the CPU is booting a Cisco IOS software image. It rarely happens when booting ROMMON. It gets to a point, stops sending any output to the console port, and does not respond to the console port. The CPU may or may not respond to the RESET (NMI) button on the front panel.

• The CPU has exception while booting.

  This can occur when booting ROMMON or Cisco IOS software. The CPU may go into a boot, exception, reboot loop, or a boot, and then have continuous exceptions.

• There may be an exception or bad address in the range.

  0x08XX_XXXX

  0xA8XX_XXXX

  0x48XX_XXXX

  0x58XX_XXXX

• All protocols stop working (for example, SSCOP will go to idle, PNNI will go to one-way-in, and so on).

Workaround/Solution

All MSR RPs earlier than revision 5.7 must be replaced to avoid these problems. All CSR RPs earlier than revision 5.6 and all revision 5.6 RPs listed in the Affected Serial Numbers section of this Field Notice must be replaced to avoid these problems. Follow the procedure listed below to get the RPs replaced.

To order replacement RPs, request a return materials authorization (RMA) from the Technical Assistance Center (TAC), referencing this field notice.

Use the show hardware command to get the hardware revision and serial number.

>show hardware

C8540 named CORE SWITCH, Date: 12:59:17 UTC Tue Jul 6 1999 

Slot    Ctrlr-Type    Part No.     Rev    Ser. No.    Mfg Date    RMA No.     Hw Vrs   Tst EEP 
----    ----------    --------     ---    --------    --------    -------     ------   -------
4/*    Route Proc     73-2644-05   A0    03130LQ7     Mar 24 99   0           5.6 
6/*    Switch Card    73-3315-08   B0    03140PMC     Apr 07 99   0           8.3 
6/0    Feature Card   73-3408-04   A0    03140P33     Apr 07 99   0           4.0 
7/*    Switch Card    73-3315-08   A0    02090HRX     Apr 08 99   0           8.2 
7/0    Feature Card   73-3408-04   A0    020209XZ     Apr 08 99   0           4.0 
12/*   Super Cam      73-2739-03   A0    03110KJ5     Mar 25 99   0           3.0 
12/0   155MM PAM      73-1496-03   A0    09004339     Sep 21 98   00-00-00    3.2      0 2 
12/1   622MM PAM      73-1864-02   A0    12346025     Mar 15 99   00-00-00    1.3      0 2 

DS1201 Backplane EEPROM: 
Model   Ver.   Serial      MAC-Address    MAC-Size   RMA RMA-Number   MFG-Date 
-----   ----   ------      -----------    --------   --------------   ----------- 
C8540   2      12235661    0090215E9C00   1024       0 0              Apr 14 1999 
cubi version : F 

Power Supply: 
Slot   Part No.      Rev Serial No.      RMA No.        Hw Vrs    Power Consumption 
----   --------      --------------      -------        ------    ----------------- 
0      34-0829-02    A000 APQ0227001F    00-00-00-00    1.0       2746 cA 
1      34-0829-02    A000 APQ0226006U    00-00-00-00    1.0

To tell the difference between the CSR and MSR RPs, see the part number field above. The CSR is 73-3775-xx and MSR 73-2644-xx.

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:

• Open a service request on Cisco.com
• By email
• By telephone

Receive Email Notification For New Field Notices

Product Alert Tool - Set up a profile to receive email updates about reliability, safety, network security, and end-of-sale issues for the Cisco products you specify.