Cisco Bug: CSCuo74024 - STP BPDU received on vPC secondary not tunneled to vPC primary
Last Modified
Aug 25, 2020
Products (8)
- Cisco Nexus 5000 Series Switches
- Cisco Nexus 5548P Switch
- Cisco Nexus 5596UP Switch
- Cisco Nexus 6004 Switch
- Cisco Nexus 6001 Switch
- Cisco Nexus 5672UP Switch
- Cisco Nexus 5548UP Switch
- Cisco Nexus 5596T Switch
Known Affected Releases
7.0(1)N1(1)
Description (partial)
Symptom:After upgrading one of the Nexus 5500/6000 in VPC topology from 6.0(x) to 7.0(x) version whereas the other node still running old 6.0(x) version, STP disputes can be seen on upstream devices. If Bridge assurance is used, ports will be BA blocked. Conditions:Seen in set ups in double sided VPC and one Nexus 5500/6000 in the VPC set up is running 6.0 and the other has been upgraded to 7.0 and when the VPC primary switch is upgraded first to 7.0
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Bug Details Include
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