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Cisco 12000 Series Routers

Field Notice: FN - 13145 - TxSOP SRAM Parity Errors on 3-Port GE Line Card


Revised March 3, 2006
July 18, 2001


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
3GE-GBIC-SC(=)   800-06376-01 rev. A through rev. H (inclusive)  

Problem Description

Some 3-port GE line card may experience Tx SOP SRAM parity errors.  

Background

This problem has been isolated to a timing anomaly on the line card which is associated with a particular revision of memory component.  

Problem Symptoms

Tx SOP SRAM parity errors, an example of which is shown below:

SLOT 14:00:01:43: %LCPOS-3-SOP: Tx SOP. (source=0x20, halt_minor0=0x1)  

Workaround/Solution

As of line card part number 800-06376-02 rev. A0 (and later) the 3-port GE line card is no longer using the revision of memory which is associated with this problem. Line card part number 800-06376-01 (any revision) is subject to the problem described in this field notice.

The probability of a field failure is low. Cisco recommends a fix-on-fail strategy for this problem.

Service Logistics has known-good inventory at this time. The standard RMA process and delivery times are in effect.

How To Identify Hardware Levels

The 800-level part number can be seen by using the show diag slot command.

How to Identify Memory Components

Not all products within the affected revision range listed in the Products Affected section above are affected by this problem. For customers who wish to be more selective in identifying and replacing potentially defective line cards the following information is provided.

The yellow rectangle in the photo below identifies the location of the memory modules in question.

Memory modules having a "Z" in the location shown in the yellow rectangle in the photo below are associated with this problem. Memory modules having a different letter or different labeling are not associated with this problem. In the example shown in the photo below, the memory module has a letter "Y" and is therefore not associated with this problem.

Revision History

Revision Date Comment
1.5 03-MAR-2006 Removed Umpire Form
1.4 26-MAR-2002 Maintenance Update
1.3 02-NOV-2001 Maintenance Update
1.2 03-OCT-2001 Maintenance Update
1.1 02-AUG-2001 Maintenance Update
1.0 18-JUL-2001 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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