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Spanning tree instance s for vlan 1 does not exist
While technically your thinking is correct and a good idea in REAL LIFE network design, in the CCIE lab you are often presented with scenarios that logically would not play in real life.
Don't over-think things! ...
Certainly not.
Im not saying it is a certification Scott. It isn't in itself and people shouldn't pass it off as such when they mention they have completed it on a resume. ...
...administrator enters the spanning-tree vlan 1 root ... (Choose three.) Because S1 and S3 are not trunking, they have no spanning-tree instance.
A. VLAN 107 does not exist on switch A. B. VTP is pruning VLAN 107. C. VLAN 107 is not configured on the trunk. D. spanning tree is not enabled on...
...switch#sh span vlan 50. Spanning tree instance(s) for vlan 50 does not exist. switch#sh vlan br. VLAN Name Status Ports...
...runs different STP instance for each vlan ... 1 to 65535). Methods to set Bridge ID of a switch (at global configuration level) spanning-tree...