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Cisco Bug: CSCul66806 - NP4c fast reset ; TM lockup, search lockup , RFD problems

Last Modified

Dec 06, 2019

Products (7)

  • Cisco ASR 9000 Series Aggregation Services Routers
  • Cisco ASR 9922 Router
  • Cisco IOS XR Software
  • Cisco ASR 9010 Router
  • Cisco ASR 9006 Router
  • Cisco ASR 9001 Router
  • Cisco ASR 9912 Router

Known Affected Releases

4.2.1.BASE

Description (partial)

Symptom:
NP packet buffer leak happens when there is a large burst of MACs learning along with high rate traffic.  Customer traffic drop can happen due to buffer leakage. As the leakage getting worse, packet forwarding on the NP can be so slow that internal heartbeat message cannot be handled in a given period of time. Thus NP is declared in lockup state.

Conditions:
High of egress learning along with high rate of NP processing occurring,
related to high rate of ingress/egress traffic into the NP.
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
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