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vPC with Single N5K Switch

Common setup of vPC is setup peer-link and heartbeat link between 2 unit of N5K switches. FEX switch will have uplink to N5K-1 and N5K-2 , with vPC configure.

 

I have very unusual question.

 

Can we setup vPC with only single N5K? and N2K FEX only connect to N5K-1.

reason is the secondary N5K-2 is not availalble now, but will add in N5K-2 in future.

But I want to do pre-configuration on N5K-1, the vPC configuration.

So when N5K-2 is available , I can just connect (heartbeat & peer link) N5K-2 to N5K-1 , then configure vPC on N5K-2. N2K then add anohter uplink to N5K-2.

When hearbeat & peerling is up then N5K-2 will resume as secondary vPC. Without have to change/add  the vPC configuration on N5K-1 

 

Today I tried configure N5K-1 with vPC to N2K FEX. But the vPC won't come  up.

 

fex 100
pinning max-links 1
description "fex100-1"

 

vpc domain 100
role priority 100
peer-keepalive destination 172.24.97.11 source 172.24.97.10
peer-config-check-bypass
delay restore 15
auto-recovery

 

interface port-channel1
description vPC peer-link
switchport mode fabricpath
spanning-tree port type network
vpc peer-link

 


interface port-channel100
switchport mode fex-fabric
fex associate 100
vpc 100

 


interface Ethernet1/9
description fex100-1
switchport mode fex-fabric
fex associate 100
channel-group 100

1 REPLY 1
VIP Advisor

Re: vPC with Single N5K Switch

Yes this can be possible, since other peer part of vPC not available this active as Active in the Role. and later you can add.

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