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Cisco Bug: CSCvt41094 - Interface/Bundle vlan_index miss-programmed leading to AC traffic blackhole

Last Modified

Sep 02, 2020

Products (12)

  • Cisco Network Convergence System 5500 Series
  • Cisco Network Convergence System 55A2-MOD-HD-S
  • Cisco Network Convergence System 5504
  • Cisco Network Convergence System 5502-SE
  • Cisco Network Convergence System 5516
  • Cisco Network Convergence System 55A1-24H
  • Cisco Network Convergence System 5502
  • Cisco Network Convergence System 55A2-MOD-S
  • Cisco Network Convergence System 55A2-MOD-SE-S
  • Cisco Network Convergence System 5501-SE
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Known Affected Releases

7.2.1.CE

Description (partial)

n/a

Symptom:
L2 Traffic blackhole

Conditions:
Configure a L2CP protocol on a bundle interface and have a physical interface bounded to a bundle.
The L2CP protocols can be one of the below.
1. MACSEC
2. STP / PVST
3. PTP
4. ELMI
5. CDP

Move the physical interface out of the bundle
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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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