I normally stick to servers but in dealing with Cisco UCS Chassis I have found myself in a position to where I have to learn more and more on the network side as the line seems to be getting blurred with some of the devices attached. This is a good thing for me as I can make more gradual steps to learn more. I found myself in a position where I had to change the UCS virtual IP address, here are the steps I went through. These are very well documented on the Cisco site here.

scope fabric-interconnect a
set out-of-band ip 1.1.1.3 netmask 255.255.255.0 gw 1.1.1.1
scope fabric-interconnect b
set out-of-band ip 1.1.1.4 netmask 255.255.255.0 gw 1.1.1.1
scope system
set virtual-ip 1.1.1.2
commit-buffer verify-only

The above steps will apply everything to change the IP addresses. Replace the IP’s with your own, the only thing I didn’t like on the Cisco page was it didnt mention how to verify it and make sure everything was good. Several other pages I found had the command “commit-buffer verify-only”. While the operation is very simple, I am one that always like to verify before I apply a change where possible.

Finally once you are ready, run the command below to commit the changes.

commit-buffer