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Cisco Bug: CSCtd40754 - ipv6 is not enable in uidb for GRE tunnel interfaces after RP FO

Last Modified

Jan 14, 2017

Products (1)

  • Cisco Carrier Routing System

Known Affected Releases

3.9.0.BASE

Description (partial)

Symptom:
 ipv6 is not enabled in uidb for GRE tunnel interfaces after RP FO  done on neighbor router. The customer 
would notice IPv6 traffic loss on tunnel interfaces.
 
 Conditions:
 Rare timing condition seen once.  Unable to reproduce reliably. 
This was obsevered in the following topology:
Router 1 ---- Router 2
When Fail over was done on Router 1, the issue described was see on Router 2 and all the 
tunnel interfaces lost IPv6 connectivity on GRE tunnel interfaces.
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
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