This past week, I upgraded one of our Sup-720s to the new Vs-720 which supports VSS (virtual switching system). I’m not using VSS at this time, but we will in the near future. We are only using a single Supervisor in each of our distribution switches. I did some work in the lab to make sure the supervisor upgrade would be as quick and painless as possible. Our access switches are all dual homed to another distribution so the impact would typically be minimal.
Here is what I did for the supervisor upgrade ::
I had the new supervisor running in a lab switch for a few weeks. Our production switches are fully loaded 6513 switches and what I was using in the lab was 6506 switches.
1. Let Supervisor burn in for 2-4 weeks in a lab.
2. Backup current config of production supervisor (this will be used to prep the new supervisor). Also record output of “show ip inter brief”
3. Establish base config for new supervisor.