vpc peer keep alive issue in Cisco Nexus 7k

[Jobish James]

2 X Cisco N7Ks are configured with 3 VDCs each ( prod,DMZ1,DMZ2 and each VDC has it own vPC
domain along with vPC port-channels configured and are operational.

Out of Band vPC peer-keepalive is configured using the mgmt0 interface for heartbeat between both N7Ks.

Now observation is that vPC peer-keeplive is working for prod VDC, but not working for other VDCs( DMZ1,DMZ2) i.e peer is not reachable from its counterpart.

vPCs in DMZ1 & DMZ2 are working fine for last 6 months without causing any problem to End users

since vPC peer-keep alive is not working for DMZ1 & DMZ2 VDCs, Would like to know if there any risk involved in this or cause any issue to network in future.

[Florian Holzapfel]

Hi,

your keep-alive have to work. look in the best-practices guide http://www.cisco.com/c/dam/en/us/td/docs/switches/datacenter/sw/design/vpc_design/vpc_best_practices_design_guide.pdf

best luck + kind regards,

flo

[jkilleda]

Hello Jobish,

Vpc peer keep alive issue in Cisco Nexus 7k
Add a static route for the other VDCs management IP address towards the default gateway of your management network