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Help with adding vlans

Hi

Today I will be a adding a vlan to our network. Since this is the first time I will be doing this I'm quite nervous about it.

Before I do could someone please give me a little guide to this. I've written my notes on it but just to confirm what I have.

Currently my network switches are 3524/48 xl series. The VTP status on all of them is set to "server" except for one which is set to "transparent".

The Switchport access on the gigabit trunk links between the six switches is allowing all vlans. So I assume I don't need to do anything with the spanning tree command.

Do I just add the vlan one by one to each switch, would this be ok and not cause a loop?

Thanks for your advice.

Dan

3 REPLIES

Re: Help with adding vlans

Dan,

The purpose of VTP is to simplify the VLAN configuration. You can configure the vlans on the VTP server and it will get to propogated to all other VTP servers/clients in the same VTP domain. You don't have to configure VLANs in all the switches.

Configure the switch in the central point of your network as the VTP server and the others as VTP clients. VTP pruning is enabled by default. Most of the default STP settings should be fine.

Pls. rate the post if it helped.

HTH,

Sundar

New Member

Re: Help with adding vlans

Hi Sundar

Thanks for the reply. On my "show vtp status" command I get "VTP Pruning Mode Disabled". Does that affect anything.

Also will changing the switches to client mode cause downtime, and what should I consider before tunring them into clients?

Thanks once again

Dan

Re: Help with adding vlans

Dan,

My understanding was VTP pruning is enabled by default in most versions of software. Check your switch config to see if it has been disabled by someone. If it's I would enable it as it doesn't hurt even if it doesn't help.

Changing the VTP mode to client shouldn't affect the operations as you haven't added the VLANs yet anyway.

Pls. rate the post if it helped.

HTH,

Sundar

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