I have a question regarding the "show spanning-tree uplinkfast" command.
I know what uplinkfast does and how but I couldn't find documentation for the show-command.
A couple of switches in our network have an output like this one:
Command :show spanning-tree uplinkfast | i Number of
Number of transitions via uplinkFast (all VLANs) : 51
Number of proxy multicast addresses transmitted (all VLANs) : 10920
If the transitions/multicasts are greater then 0, the backup-link must have been activated respectively the uplink must have been inactive, right?
This is what worries me, because I see many switches with counters > 0, and I normally wouldn't expect this in a stable network.
An uplinkfast transition happens as a result of a configuration of the network (parameter change, link added/removed, switch reloaded etc...) or a failure (loss of bpdus, link going down etc...).
So if your sporadic uplinkfast transitions occur as a result of sporadic configuration events, I would not worry about them.
However, if you experience sporadic uplinkfast transitions while being sure that there is no configuration event, I would try to investigate their source.