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Cisco Bug: CSCvv42595 - ASR920 REP flapping randomly and frequently due to port down

Last Modified

Oct 14, 2020

Products (1)

  • Cisco ASR 920 Series Aggregation Services Router

Known Affected Releases


Description (partial)

A GLC-TE gig REP interface start flapping randomly and frequently due to port down,
but not on all GLC-TE interface.

This issue will be seen on SFP-10G-SR-S SFP as well, after reload, SFP optics issue could happen due to I2C bus busy error logs in node.

Issues has been reported at:
Platform: ASR 920
Software: IOS-XR 16.9 and 16.12.

Interface insert GLC-TE (CU-SFPs)
Or other 10GE SFP like SFP-10G-SR-S.
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Bug Details Include

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