After making some changes to the way our network was setup I ran into a problem with RIP.
We started out with a VLAN spanning a pair of switches and using a tagged uplink port to connect and span the two. This worked fine, but with the new design favouring routing I thought we’d take the opportunity to change the configuration.
As the edge switch was being replaced it was easy enough to just rebuild the new switch and configure it for RIP. But on the core switch it meant I needed to delete the VLAN that would no longer be needed. This is what stopped me in my tracks.