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How to determine if Cisco VLAN is in use

We have a number of Cisco switches at a location that include VLAN 5 in their configuration, I feel that this is a legacy VLAN trunk and no longer in use. Is there a way I can be certain it is not being used prior to removal?

- A sh VLAN brief indicates that no ports are assigned to the vlan

- sh int trunk indicates;
Port Vlans allowed on trunk
Gi0/1 5,10,100,200,254

- #sh int vlan 5 sum does not show any activity

- sh int vlan 5 indicates - Vlan5 is down, line protocol is down

- int vlan 5 is configured as following
#sh run int vlan 5
interface Vlan5
ip address 10.30.5.250 255.255.255.0
no ip route-cache
end

Is there anything else I should check before removing the VLAN/interface?

ASKER CERTIFIED SOLUTION

RedNectar Chris Welsh

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agradmin

ASKER

Thanks, that is helpful. Using the command I see that the only mac address listed is the one associated with the IP of the interface itself;

#sh ip arp vlan 5
Protocol Address Age (min) Hardware Addr Type Interface
Internet 10.30.5.250 - 6c5e.3b71.49c1 ARPA Vlan5

#sh run int vlan 5
interface Vlan5
ip address 10.30.5.250 255.255.255.0

I'm thinking I'm clear to remove.

Thanks for the help!

agradmin

ASKER

Thanks for the expert help.