I've recently found that one of the switches on my network (which I never set up) is running a "no spanning-tree vlan 3, 5, 10" command, which I want to remove, but I have been unable to. When I do try and type in "spanning-tree vlan 3" nothing comes up, but when I show spanning tree it lets me know that it doesn't exist.
Is there a command I'm missing? (It's a larger number of vlans)
I'm not sure there would be anything for spanning tree to calculate if no ports on the switch are assigned to vlan 3. Try assigning an unused port to vlan 3 and see if your output of sh spanning-tree vlan 3 changes.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...