Preview Tool

Cisco Bug: CSCun88142 - Trident Ucode: learn local bit not cleared for egress mac learns.

Last Modified

Oct 24, 2018

Products (1)

  • Cisco ASR 9000 Series Aggregation Services Routers

Known Affected Releases

4.2.3.BASE 4.3.0.BASE 4.3.1.BASE 4.3.2.BASE 4.3.4.BASE 5.1.1.BASE

Description (partial)

Temporary flooding of vpls traffic after mac learning.

A mac move of a learned local mac to a non-learned local mac can result in the
learned local indication not being cleared.  This can result in a delete of the mac
entry followed by a relearning.   During that time, there could be temporary
flooding of traffic destined to that mac entry.
Bug details contain sensitive information and therefore require a account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.