Some OC48 line cards were manufactured with incorrect discrete components which could affect long-term reliability.
BackgroundA problem at a contract manufacturer caused some incorrect components to be installed. Engineering has determined that this may affect the long-term reliability of the line cards.
Only line cards within the above serial number range are affected. Line cards outside the above serial number range are not affected.
Problem SymptomsNo specific failure symptoms are apparent. Rather, the long-term reliability of the line cards may be affected.
Workaround/SolutionThe solution for this problem is to replace the defective hardware.
How To View Serial Numbers
Product serial numbers can be viewed online by using the show diag command. A sample output from a show diag command with the serial number highlighted in bold red is given below:
#show diag 1 SLOT 1 (RP/LC 1 ): 1 Port Packet Over SONET OC-48c/STM-16 Single Mode/SR SC-FC MAIN: type 41, 800-5528-01 rev A0 dev 16777215 HW config: 0x03 SW key: 00-00-00 PCA: 73-3295-05 rev A0 ver 5 HW version 1.1 S/N SDK0338033T MBUS: Embedded Agent Test hist: 0x00 RMA#: 00-00-00 RMA hist: 0x00 DIAG: Test count: 0x00000000 Test results: 0x00000000 L3 Engine: 2 - Backbone OC48 (2.5 Gbps) MBUS Agent Software version 01.40 (RAM) (ROM version is 02.00) Using CAN Bus A ROM Monitor version 10.04 Fabric Downloader version used 03.01 (ROM version is 03.01) Primary clock is CSC 1 Board is analyzed Board State is Line Card Enabled (IOS RUN ) Insertion time: 00:00:09 (2w6d ago) DRAM size: 67108864 bytes FrFab SDRAM size: 134217728 bytes, SDRAM pagesize: 8192 bytes ToFab SDRAM size: 134217728 bytes, SDRAM pagesize: 8192 bytes
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