Weird VTP Behavior

flurrball

Hey, I was just reading Odom's ICND2, and it said instead of typing the following to create a VLAN:

Sw(config)# vlan 40

you could type the following:

Sw(config)# int fa 0/16
Sw(config-if)#switchport access vlan 40

and VLAN 40 would be created if it didn't already exist. So naturally, I jumped into Packet Tracer to try it. While fooling around, I did it on a VTP client switch, which I thought couldn't create VLANs, but for some reason it created it. I was wondering if this was a Packet Tracer bug, or if real switches do this too.

remyforbes777

You cannot create a vlan on a switch configured as a client.

marlon23

On a 3560 for example, it will let you asign the port to non-existing vlan but it doesnt create one. It can depends on platform, some switches will complain you that you are in a clinet mode when doing this.

flurrball

Thanks, I guess its just a Packet Tracer error.