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Cisco Bug: CSCur56990 - asr9k MST excessive packet loss during convergence

Last Modified

Jan 28, 2017

Products (7)

  • Cisco ASR 9000 Series Aggregation Services Routers
  • Cisco ASR 9922 Router
  • Cisco ASR 9010 Router
  • Cisco ASR 9904 Router
  • Cisco ASR 9006 Router
  • Cisco ASR 9001 Router
  • Cisco ASR 9912 Router

Known Affected Releases

5.3.0.BASE 5.3.2.BASE

Description (partial)

Symptom:
During a MST spanning tree convergence test, an asr9000 running 5.1.3 where a port is brought up may take more than 2 seconds before forwarding the traffic.

Conditions:
MSTP is configured on physical interface such as TenGig0/0/0/0 or Gig 0/0/0/0
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Bug Details Include

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