Cisco Bug: CSCvs69983 - MCT flap after ISSU leads to vlan_mgr crash & puts system in inconsistent state
Feb 16, 2020
- Cisco Nexus 7000 Series Switches
Known Affected Releases
Symptom: Vlan_mgr crash SUP-switchover triggered by kernel redundancy driver MTS pile up for processes - psshelper, vlan_mgr, svi All AA FEXs struck in 'Ready' state & thereby all FEX HIFs down. Conditions: Post ISSU, flap AA FEX HIFs (first on VPC primary switch & then on VPC secondary switch), flap vlans (first on VPC primary switch & then on VPC secondary switch). Then when MCT PO is flapped on VPC primary switch, issue is seen.
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Bug Details Include
- Full Description (including symptoms, conditions and workarounds)
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