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MoulaAli480
Beginner

N5k VPC peer-keep alive

Hello,

This is Moula Ali, I have an query that N5K-C5548UP, running VPC peer links and VPC peer keep alive links. The peer keep alive links are using the dedicated mgmt ports for peer keep alive traffic. I want to change this so the VPC peer keep alive links are using dedicated ports, and this will also make the mgmt ports dedicated for management traffic only. I do not have a way to test this in a non-production environment. I wanted to make sure my procedure will not cause an outage. After the peer keep alive change, I plan to re-IP the mgmt port to a different network. Switches are running version 7.3(3)N1(1).

 

Note: Do we require Daughter card to create L3 port-channel for vpc peer-keepalive. If not can have daughter card can we create or not.

8 REPLIES 8
balaji.bandi
VIP Guru

You can change the vpc peer-link no issue, but 1 question to ask, is the end device dual Homed with both nexus 5K, do you have any small diagram.

 

It all depends on config you have, If you are using port-channel, you can remove and join the new interface, if they are same speeds ? i do not see any issue.

 

Make sure you always perform any task in maintenance window for better outcome, no pressure it is effecting Live traffic to save your self.

 

 

Note: Do we require Daughter card to create L3 port-channel for vpc peer-keepalive. If not can have daughter card can we create or not.

 

you can use different Asic if you do not have any other option for safe and best practice.

 

You must configure peer-keepalive link before peer-link in order for vPC system to come up.

 

check out some best practice for reference :

 

https://www.cisco.com/c/dam/en/us/td/docs/switches/datacenter/sw/design/vpc_design/vpc_best_practices_design_guide.pdf

 

BB

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