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Cisco Bug: CSCus85411 - More correctable Typhoon instruction memory ECC errors not repaired

Last Modified

Dec 04, 2018

Products (1)

  • Cisco ASR 9000 Series Aggregation Services Routers

Known Affected Releases

4.2.1.BASE 4.3.1.BASE 5.1.0.BASE 5.2.0.BASE 5.3.0.BASE

Description (partial)

A single-bit ECC error in NP instruction memory was not repaired properly and thus continues to be detected and reported repeatedly.     Here is an example:

prm_server_ty[298]: %PLATFORM-NP-3-ECC : prm_ser_check: Single-bit ECC error detected: NP 7, block 0x18 (MDF), offset 1, memid 51, name INSTRUCTION_MEM1, addr 0x0000004d, bit 35, ext info 0x00000001 0xffffffff 0xffffffff 0xffffffff, action 0 (Fix)  

There are no functional side effects, but the error will continue to be detected and reported over and over.

This problem is specific to Typhoon linecards.  There is no specific trigger for the underlying error as it is a rare and random hardware occurrence.

Related Community Discussions

ASR9K: Typhoon LC で NP の Instruction Memory(ID:42,44,47,52) の SBE が修正されない
2015年7月25日(初版) TAC SR Collection 主な問題 Typhoon LC 上の NP(Network Processor) | で使用されている特定の Instruction Memory (ID:42,44,47,52)  で発生した Single Bit Error(SBE) が正しく修正されません。 <問題の確認方法> 同一 NP 上の同一メモリにて、下記例のようなログが 定期的に 出力されることを確認。 prm_server_ty[xxx]: % PLATFORM-NP-3-ECC : prm_ser_check: Single-bit ECC error detected : NP 3, block 0x17 (MDF) , offset 14, memid 47 , name INSTRUCTION_MEM 14, addr 0x0000003e, bit 16, ext info 0x00000007 0xffffffff 0xffffffff 0xffffffff, action 0 (Fix)    ※メッセージ中の name が INSTRUCTION_MEM ...
Latest activity: Jul 26, 2015
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