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L2PT is not working after MPLS path failover

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TitleL2PT is not working after MPLS path failover
Symptoms
l2pt forwarded packets dont reach destination after the MPLS path changes due to link failure or other reasons
Environment
  • MPLS
  • VPLS
  • L2Pt
  • EXOS
Cause
This is caused by CR xos0068785. Due to this bug the CPU forwarded l2pt packets are not taking the same path as the VPLS packets use. When the CPU used MPLS path goes down the l2pt forwarded packets take the wrong path while the VPLS packets take the correct MPLS path.
Resolution
Upgrade to a release containing a fix for this behavior. A temporary workaround would be disabling the VPLS and enable it again.
  • 16.2.3-patch1-14
  • 21.1.4.4-patch1-1
  • 22.4
Additional notes

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