u/lonyun

Upgrade Nexus 7K switches in VPC mode

Hi,

We have a customer running Nexus 7K switches in a vPC pair with several FEXes connected. We need to upgrade them to a newer software version due to a few bugs we’ve encountered.
I was wondering what the recommended upgrade approach would be. Would you upgrade the secondary vPC switch first, let it rejoin the vPC domain, and then proceed with the primary switch (No ISSU available, disruptive mode).
Also, what’s the best way to verify that all servers and other connected devices are dual-homed across both vPC peers so we can minimize any service disruption during the upgrade?
I’d really appreciate any advice or best practices. Thanks!

reddit.com
u/lonyun — 3 days ago

Hi everyone, first post here. So I accepted a new job designing campus networks. Coming from a DC background, a lot of ACI, firewalls, etc. I'm assigned to migrate all the campus networks from Cisco to Juniper. Small to medium size, depending on the site, from just one MDF up to IDFs on each floor. I take the assessment, analyze the networks and connectivity, and then propose the Juniper devices for that specific site. Starting to move configs, doing patching planning for the cable team, etc. As I said from the beginning, coming from the DC side it seems a bit overwhelming. Have any of you experienced this? What should I look out for during the migrations, and what are the main issues?

reddit.com
u/lonyun — 2 months ago