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Cisco Bug: CSCut41684 - ASR 1K crash due to CCM_ACK interupt

Last Modified

Jan 29, 2017

Products (1)

  • Cisco ASR 1000 Series Aggregation Services Routers

Known Affected Releases

15.5(1)S

Description (partial)

Symptom:
FP reloads with the core file reporting:
  GIM_CSR32_GIM_ERR_CCM_NOACK_LEAF_INT__INT_GIM_HPI_CCM_ACK_ERR
interrupt.

Conditions:
This issue only applies to ASR1001-X, ASR1002-X, ESP100 and ESP200.  To hit this issue, three rare conditions internal to the QFP forwarding engine have to be present at the same time. These conditions are influenced by which features are configured, instantaneous traffic characteristics, as well as instantaneous processing load on the QFP. It is very, very rare for these conditions to occur.
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