How to check the VLAN segment of the core switch
To display VLAN information, use the show vlan command in privileged EXEC mode. show vlan [brief | id vlan-id | name name | ifindex] (Optional) Displays only a single line for each VLAN, naming the VLAN, status, and ports. A quick search on the client name told me what VRF they were in, and what VLAN they were in (3000), let's have a look at that; Building configuration. name CORP:NET That doesn't yield much more than I already know, so I can either do this and get a LOT of information; Hardware is EtherSVI. If it finds an existing VLAN having the specified number, it does not create a new. To configure VLANs we have to go to the switch Switch0 and move to Config → SWITCHING → VLAN Database.
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