I have a 3750 switch which has the command 'spanning-tree vlan **'. I am struggling to remove this command, as this particular VLAN is one I want to distribute across our network.
I have so far, set the switch to VTP Transparent mode and removed the VLAN from the database, this removes the command. If I then put the switch back to VTP client mode (or manually add the VLAN, while in in VTP transparent mode) then the command comes back. Submitting the command 'spanning-tree vlan **' command has no affect.
to my best knowledge if a switch doesn't know about a VLAN then it can't have a Spanning-tree instance for this VLAN.
So when you have your switch in client mode it is learning about this vlan from vtp and can start a spanning-tree instance for this vlan.But STP is for redundant paths not for distributing a vlan across a network so could you be more precise and explain what you want to achieve exactly.
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