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Cisco Catalyst 6500 Series Switches

Field Notice: FN - 62606 - Catalyst 6000 Active Supervisor Engine 720 Crashes Due to an EOBC Jam Created by the Online Insertion of a Second Supervisor Engine 720 - Software Upgrade Required


Revised December 14, 2006

December 12, 2006

NOTICE:

THIS FIELD NOTICE IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTY OF MERCHANTABILITY. YOUR USE OF THE INFORMATION ON THE FIELD NOTICE OR MATERIALS LINKED FROM THE FIELD NOTICE IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS FIELD NOTICE AT ANY TIME.


Products Affected

Product

Comments

C6000 - WS-SUP720

Version 5.2 or later are affected

C6000 - WS-SUP720-3B

Version 5.2 or later are affected

C6000 - WS-SUP720-3B=

Version 5.2 or later are affected

C6000 - WS-SUP720-3BXL

Version 5.2 or later are affected

C6000 - WS-SUP720-3BXL=

Version 5.2 or later are affected

C6000 - WS-SUP720=

Version 5.2 or later are affected

C6503 - WS-C6503

C6506 - WS-C6506

C6509 - WS-C6509

C6509 - WS-C6509-NEB

C6509 - WS-C6509-NEB-A

C6513 - WS-C6513

7600 - CISCO7609

7600 - CISCO7603

7600 - CISCO7606

7600 - CISCO7613

7600 - WS-SUP720

Version 5.2 or later are affected

7600 - WS-SUP720-3B

Version 5.2 or later are affected

7600 - WS-SUP720-3BXL

Version 5.2 or later are affected

7609 - OSR-7609-AC

7609 - OSR-7609-DC

12.2(18)SX - 12.2(18)SXE

Versions up to 12.2(18)SXE6a are affected

12.2(18)SX - 12.2(18)SXD

Versions up to 12.2(18)SXD7a are affected

12.2(18)SX - 12.2(18)SXF

Versions up to 12.2(18)SXF6 are affected

12.2(33SR - 12.2(33)SR

Version up to 12.2(18)33SRA01 are affected

Problem Description

The Supervisor Engine 720 may restart after a second Supervisor Engine 720 is inserted in the chassis. The Supervisor Engine crash occurs if the Ethernet Out Band Channel (EOBC) gets jammed during the online insertion process.

  • This problem occurs in 6500 non-E and 7600 series chassis running affected Cisco IOS software versions.

  • This problem occurs when the hardware version of both Supervisor Engines is 5.2 or later.

  • Initially, the problem may not occur. However, once the problem occurs, it may recur during all subsequent online insertions.

Note:

To identify the hardware version, refer to How to Identify Hardware Levels section.

Background

An EOBC jam is created by the online insertion (OIR) of standby Supervisor Engine 720 of hardware revision 5.2 when the active Supervisor Engine 720 is also of hardware revision 5.2, in a non-E chassis.

Note:

For affected IOS versions, refer to Cisco IOS Versions Affected section.

Problem Symptoms

Inserting a second Supervisor Engine 720 in a Non-E chassis may cause the active supervisor to crash with EOBC JAM error. The following error message will be displayed.

Error Message:

Router>
00:20:27: %SYS-SP-3-LOGGER_FLUSHING: System pausing to ensure console debugging
output.

00:20:27: %EOBC-SP-2-EOBC_JAM: EOBC channel is jammed.  Attempting to diagnose
the source of the problem and recover if possible.
00:20:27: %OIR-SP-6-CONSOLE: Changing console ownership to switch processor

Workaround/Solution

Upgrade IOS software to the following IOS versions accordingly:

  • 12.2(18)SXD07a or later versions.

  • 12.2(18)SXE06a or later versions.

  • 12.2(18)SXF06 or later versions.

  • 12.2(33)SRA01 or later versions.

DDTS

To follow the bug ID link below and see detailed bug information, you must be a registered user and you must be logged in.

DDTS

Description

CSCse73539 (registered customers only)

c7600 - crash of active sup720 after inserting a second one

Cisco IOS Versions Affected

All 12.2(18)SXD Cisco IOS Versions up to, but not including 12.2(18)SXD07a

All 12.2(18)SXE Cisco IOS Versions up to, but not including 12.2(18)SXE06a

All 12.2(18)SXF Cisco IOS Versions up to, but not including 12.2(18)SXF06

All 12.2(33)SR Cisco IOS Versions up to, but not including 12.2(33)SRA01

How To Identify Hardware Levels

You may query the hardware version of the Supervisor Engine 720 by using the show mod exec CLI command.

Example:

Router>sh mod
Mod Ports Card Type                              Model              Serial No.
--- ----- -------------------------------------- ------------------ -----------
  6    2  Supervisor Engine 720 (Active)         WS-SUP720-3B       SAL1013H66F

Mod MAC addresses                       Hw    Fw           Sw           Status
--- ---------------------------------- ------ ------------ ------------ -------
  6  0013.c43a.bcd8 to 0013.c43a.bcdb   5.2   8.4(2)       12.2(18)SXF4 Ok

Mod  Sub-Module                  Model              Serial       Hw     Status 
---- --------------------------- ------------------ ----------- ------- -------
  6  Policy Feature Card 3       WS-F6K-PFC3B       SAL1013H2W2  2.3    Ok
  6  MSFC3 Daughterboard         WS-SUP720          SAL1013H67Z  2.5    Ok

Mod  Online Diag Status 
---- -------------------
  6  Pass

Revision History

Revision

Date

Comment

1.1

14-DEC-2006

Updated the Problem Description section to clarify that both Supervisor Engines must be HW rev. 5.2 or later for the problem to occur.

1.0

12-DEC-2006

Initial Public Release

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:

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