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Cisco Bug: CSCuj83397 - [Ares] afio: IQM ECC fixed 1 bit error MC memory

Last Modified

Feb 15, 2017

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

14.1(11)

Description (partial)

Symptom:
IQM ECC error can occur on MIO/DPC triggering ingress quick recovery procedure of fabric chip.

The indicators for this problem are:

Command: show counters
PETRAB global counters: petra-b system-device-id 17
...
  IDR.ReassemblyErrors            *** :1
...
  IPT.CrcErrCnt                   *** :6949635
...

Command: show interrupts
IQM ECC fixed 1 bit error MC memory               1

Conditions:
Fabric lane bounces or CRC errors observed prior to IQM ECC error

Fabric chip error handling performs fabric chip ingress quick recover procedure

Ingress quick recovery logic could lead to approximately 1 second traffic.
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