Hi Guys,
I have 2 nexus 7706(s) and both configured as vPC peer switch, N7K-01 is role primary and N7K-02 is secondary, all vlans spanning-tree priority on
both are same(N7K-01 is root bridge). one day, i created a new vlan(id 500) and vlan interface on both nexus, then I see the N7K-02 shows it
detecting bridge assurance so it shut down the vlan interface, so I am debugging for that, I tried type 'show vlan' and 'show spanning-tree' on N7K-01,
it has VLAN 500 information on peer-link, anything looks fine, but I typed 'debug spanning-tree bpdu_tx tree 500' on N7K-01, it doesn't sent any BPUD
packet on peer-link to N7K-02, why?
I know N7K-01 doesn't sent BPDU on peer-link will cause N7k-02 detect bridge assurance issue, but I can't understand why N7K-01 cannot send
BPDU to N7K-02? I am indeed configured vlan 500 and interface vlan 500 on both Nexus, and peer-link is allowed all vlan. I also typed 'show vpc
brief', the active vlan on peer-link row also shows the vlan 500 that is included. However, I saw some strange vlan on peer link are allowed,
which was deleted, but it is still shows on peer-link allowed vlan, I don't know whether it is related my case, but it is indeed strange.
