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Cisco Bug: CSCuj05938 - N5K RSTP: slow convergence.

Last Modified

Dec 06, 2016

Products (7)

  • Cisco Nexus 5000 Series Switches
  • Cisco Nexus 5548P Switch
  • Cisco Nexus 5596UP Switch
  • Cisco Nexus 6004 Switch
  • Cisco Nexus 6001 Switch
  • Cisco Nexus 5548UP Switch
  • Cisco Nexus 5596T Switch

Known Affected Releases

6.0(2)N2(1)

Description (partial)

This is expected behavior.

Symptom:
On some L2 topology, Nexus's Rapid-STP convergence speed is much slower than Catalyst.

Conditions:
Root down.
Topology contains loop on many points.
For example, we can see this issue on this topology

L2SW(ROOT) ------ L2SW(2nd)
   |                 |
   |                 |
   |                 |
 N5K(3rd)  ------ N5K(4th)
   |                 |
   |                 |
   +------ L2SW -----+
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
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