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|Affected Product ID
Top Assembly revision level of -F0 indicates an updated unit that has had the transceiver replaced.
||There were no defects filed with this field notice at the time of publication.|
The PRE2 backplane ethernet port may fail due to transceiver sub component failure. This affects PRE2's from the serial number set provised (built between November 2005 and March 2006) when used in either ESR or uBR10k platforms. Symptoms may include unexpected PRE2 reboot, or loss of connectivity to line cards from the PRE2.
A sub-component of one of the Ethernet transceiver modules for the ESR-PRE2 may fail prematurely under normal field use. The transceiver module was first used in November of 2005 and was phased out after March 2006 as part of an unrelated Reduction of Hazardous Substances project. The only part number version to use this component was 800-08916-16. PRE2 engines with earlier (-15) or later (-17) part numbers are not affected.
Subsequently the early failure of the transceiver module was noted in the field, leading to a defect root cause.
Affected PRE2 boards may either reboot repeatedly without toggling to standby PRE2 or exhibit a loss of connectivity to the backplane Ethernet and installed line cards.
Replace boards matching serial number, see list above.
Note: A failed board may briefly recover after reinsertion, however the board will fail again with extended use. Do not continue to use board once crash files (if any) are recovered.
Replace the affected hardware. [OR] Cisco recommends a fix-on-fail strategy for this problem.
Use the linked Serial Number Validation Tool to verify if your ESR PRE2 is affected.
Note: Products that fall within the affected serial number range are NOT affected by this problem if they have ECO [number] applied.
How To Identify Affected Products
Note: Units upgraded by Cisco Service Repair will show a top assembly revision level of -F0 (800-08916-16, -F0), indicating that the suspect transceiver was replaced and the unit re-tested.
The PCA board revision will also be incremented to -C0 (73-5544-16, -C0).
Please use the link below to validate your affected serial number(s):
Serial Number Validation Tool
Service Repair will start in December of 2007.
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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