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vPC failover

Answered Question
Mar 13th, 2012
User Badges:

We have 2 nexus 5548UP running Layer 2.  I have setup vPC between both nexus switches and have a few questions on how vPC failover works.  Below is partial snippets of what I have configured for vPC,etc. During testing, I reload nx-1 and what I am seeing is that the vPC peer-link goes down as expected but all vpc port-channels are in a failed state on nx-2 until nx-1 is back online once vPC is formed and functioning everything looks good. I then reload nx-2 and the vPC port-channels go into fail state, etc. Am I missing something in my configuration?


NX-1


feature tacacs+

feature udld

feature lacp

feature vpc

feature fex

feature vtp

cfs eth distribute

no ip domain-lookup

vtp mode transparent


vpc domain 300

role priority 200

peer-keepalive destination 10.100.5.12 source 10.100.5.11


int po12

description NETAPPA
switchport mode trunk
vpc 12
switchport trunk allowed vlan 5,6,7,8
spanning-tree port type edge trunk


int po13

description NETAPPB
switchport mode trunk
vpc 13
switchport trunk allowed vlan 5,6,7,8
spanning-tree port type edge trunk



int po250

description nx-2

switchport mode trunk

vpc peer-link

switchport trunk native vlan 999

switchport trunk allowed vlan 5,6,7,8

spanning-tree port type network


int e1/27

description vpc peer link

switchport mode trunk

switchport trunk native vlan 999

switchport trunk allowed vlan 5,6,7,8

channel-group 250 mode active


int e1/28

description vpc peer link

switchport mode trunk

switchport trunk native vlan 999

switchport trunk allowed vlan 5,6,7,8

channel-group 250 mode active


int e1/1

description netappa:e1a

switchport mode trunk

switchport trunk native vlan 999

switchport trunk allowed vlan 5,6,7,8

channel-group 12 mode active


int e1/2

description netappb:e1a

switchport mode trunk

switchport trunk native vlan 999

switchport trunk allowed vlan 5,6,7,8

channel-group 13 mode active




NX-2


feature tacacs+

feature udld

feature lacp

feature vpc

feature fex

feature vtp

cfs eth distribute

no ip domain-lookup

vtp mode transparent


vpc domain 300

role priority 300

peer-keepalive destination 10.100.5.11 source 10.100.5.12


int po12

description NETAPPA
switchport mode trunk
vpc 12
switchport trunk allowed vlan 5,6,7,8
spanning-tree port type edge trunk


int po13

description NETAPPB
switchport mode trunk
vpc 13
switchport trunk allowed vlan 5,6,7,8
spanning-tree port type edge trunk


int po250

description nx-1

switchport mode trunk

vpc peer-link

switchport trunk native vlan 999

switchport trunk allowed vlan 5,6,7,8

spanning-tree port type network


int e1/27

description vpc peer link

switchport mode trunk

switchport trunk native vlan 999

switchport trunk allowed vlan 5,6,7,8

channel-group 250 mode active


int e1/28

description vpc peer link

switchport mode trunk

switchport trunk native vlan 999

switchport trunk allowed vlan 5,6,7,8

channel-group 250 mode active


int e1/1

description netappa:e1b

switchport mode trunk

switchport trunk native vlan 999

switchport trunk allowed vlan 5,6,7,8

channel-group 12 mode active


int e1/2

description netappb:e1b

switchport mode trunk

switchport trunk native vlan 999

switchport trunk allowed vlan 5,6,7,8

channel-group 13 mode active

Correct Answer by Prashanth Krishnappa about 5 years 5 months ago
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Overall Rating: 5 (1 ratings)
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GSuarez0514_2 Wed, 03/14/2012 - 13:31
User Badges:

I am running 5.1.3.N1.1.  I just upgraded to the .1a NX-OS and this fixed it.  Thank you for your support.

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