As a temporary solution to a problem I'm about to propose that we use one 1GB link between our two sites. As a backup we would use 2X 100MG etherchannel. If the Gig link were to fail how long would it take RSTP to reconverge?
The switches are currently using pvst. To change to rpvst is it just a case of entering spanning-tree mode command and if so is there anything I need to be aware of.