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Cisco Bug: CSCuq76685 - N5K: slow convergence with lots of VLANs trunked

Last Modified

Sep 09, 2019

Products (1)

  • Cisco Nexus 6000 Series Switches

Known Affected Releases

7.0(3)N1(0.99)

Description (partial)

Symptom:
When a vPC port got shut, the time to switchover the path from vPC port to vPC peer-link increases along with the number of configured VLANs on those ports.
The same thing happens when the vPC port becomes UP again.

Conditions:
Example Topology:

             [R1]
shut ->  /      \            <= vPC port
  [ N5K-1 ] === [ N5K-2 ]  <= vPC peer
      |
    [R2]

Traffic Flow : R2 -> N5K-1 -> R1
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Bug Details Include

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