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Cisco Bug: CSCun76643 - mac entries on juggernaut LC aged out before age timer expires

Last Modified

Oct 24, 2018

Products (7)

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

Known Affected Releases

4.3.4.BASE 5.1.1.BASE 5.1.11.BASE 5.1.2.BASE 5.2.0.BASE 5.3.0.BASE

Description (partial)

MAC addresses learned on 2x100GE line card were aged out prematurely. In stead of the 300 seconds of the default timeout value, the MAC entries on these 100GE ports are being removed within 60 seconds, causing the known unicast traffic to flood the bridge domain.

MAC addresses were learned on 2x100GE line cards.
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