Does VPC Peer Gateway cause downtime?

[mark.decastro]

Hello,

I have a quick question. We recently implemented VPC based network design with few SVIs (with HSRP) on a pair of NEX 5500s, but I forgot to include the 'peer-gateway' command. I understand the benefit of that command on FHRP like HSRP. My question is, if I apply that on a production NEX 5500 switches, would that cause any downtime? Could someone please confirm? Many thanks in advance!

Regards,

Mark

[mark.decastro]

Hi there,

Any ideas? By the way, we have 5 HSRP groups currently servicing a number of servers. I assume there's no impact, just ensuring my hunch is right before I issue the command :-)

TIA,

Mark

[InayathUlla Sharieff · Accepted solution]

Mark,

It usually does not cause disruption, however we always suggest do it after hours.

HTH

[mark.decastro]

Thanks a lot guys. I assume it will be the same with 'peer-switch' command, no downtime if I issue them?

I am planning to issue both of them on our production switches in the near future. 

[InayathUlla Sharieff]

Mark,

Thanks for the update. If you dont have any further query could you please mark this thread as answered rather than leaving it as unanswered/open questions.

Thanks in advance.

[mark.decastro]

Sorry for another question, if I also include 'auto-recovery' and 'peer-switch' in our scheduled changes on the NEX switches, would that cause downtime?

[InayathUlla Sharieff · Accepted solution]

It shouldnt, but again we request you to kindly do it out of office hours or in MW.

below is the detail info on Auto-recovery:-

http://www.cisco.com/c/en/us/support/docs/switches/nexus-7000-series-switches/116187-configure-vpc-00.html#anc5

[mark.decastro]

Thanks again InayathUlla !

[Reza Sharifi]

Hi,

I don't think adding the 'peer-gateway' command will cause an outage but as Inayath also noted you should do it during a short maintenance window just in case.

HTH

[Bilal Nawaz]

There is no down time, I have done this with N7Ks in the past. 

RE peer switch command I would do this out of hours for sure. I would say expect some down time even if there isn't any.