Field Notice: FN - 64096 - NIM-2GE-CU-SFP(=) Module Can Overheat and Cause Packet Loss or Module Failure - Replace on Failure

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Updated:February 4, 2019
Document ID:FN64096

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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.

Revision History

Revision Publish Date Comments
1.0
16-May-16
Initial Release
10.0
03-Nov-17
Migration to new field notice system
10.2
04-Feb-19
Fixed Broken Image Links

Products Affected

Affected Product ID Comments
NIM-2GE-CU-SFP
NIM-2GE-CU-SFP=

Defect Information

Defect ID Headline
CSCvf34445 There were no defects filed with this field notice at the time of publication.

Problem Description

The heatsink and fan in some NIM-2GE-CU-SFP modules might not properly cool high powered chips that were introduced in manufacturing. This might cause the chips to overheat, which can result in packet loss and reloads, and could cause the device to no longer function.

The issue was discovered at one customer site in the field. There are no safety concerns associated with the overheating. Cisco has created a hardware replacement program in order to replace any potentially affected units in the field.

Background

After investigation into the failure of one unit, it was discovered that the thermal solutions (heatsink and fan) did not properly cool some chips with higher power output.

Problem Symptom

The user might see console log messages that indicate reload issues with the module. This section shows an example of the messages. The module also might no longer show up in the show inventory command.

Workaround/Solution

Fix on failure via the normal Return Material Authorization (RMA) process.

How To Identify Affected Products

You can identify the module serial number by visual inspection or by use of the show inventory command. This section provides instructions for each method.

Visual Inspection

Remove the module from the chassis and inspect the module label.

Show Inventory Command

Enter the command show inventory at the command prompt. In this example, two NIM-2GE-GE-SFP modules are installed in NIM slots 1 and 2, with serial numbers FOC19248X3F and FOC19248X2U, respectively.

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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