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Bronze

active vlan defination

Hi every body!

my book defines active vlan as vlan which is defined on switch and and has ports assigned to it.

However ,same book shows the out put of " show vlan"

vlan name status ports

2 vlan 0002 active fa0/4

5 vlan 0005 active

The vlan 5 is shown as active though no port is assigned to it which contradicts the book definition of active vlan.

Any thoughts?

Thanks a lot!

1 ACCEPTED SOLUTION

Accepted Solutions
Hall of Fame Super Silver

Re: active vlan defination

Sarah

The other thing that will put a VLAN into the active state is if there is a trunk port on the switch which carries traffic for that VLAN. Does this switch have a trunk port which has VLAN 5 as one of its VLANs?

HTH

Rick

3 REPLIES
Hall of Fame Super Silver

Re: active vlan defination

Sarah

The other thing that will put a VLAN into the active state is if there is a trunk port on the switch which carries traffic for that VLAN. Does this switch have a trunk port which has VLAN 5 as one of its VLANs?

HTH

Rick

Bronze

Re: active vlan defination

Thanks Rick for your reply!

well book just shows the output of " show vlan" for illustrative purpose , i believe.

Your point makes sense because if switch has trunk carrying vlan 5, then it is regarded as active as well.

Thanks a lot!

Re: active vlan defination

Hi Sarah,

will it stay active if you enable VTP pruning

(http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.2/25ew/configuration/guide/vtp.html#wp1020444 ) for VLAN5?

BR,

Milan

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