Help - Cannot get VLAN enabled on 4510

[DanielSalzedoRed5]

I have a brand new 4510R+E with 2 SUP-7's and 3 WS-X4748 blades. I am doing the initial config, have enabled and connected a couple of servers and turned on the GigE ports. This works fine, the ports are up and see packets. Next I did ip routing, then created some VLANs, did no shut, then assigned the GigE ports to the VLANS by first doing switchport, then switcport access vlan.

However the VLANS still show down, line protocol is down and when in do show vlan they are not listed.

This is the first time I have configured a Catalyst from scracht so it is entirely possible I have missed something very basic. I'd appreciate any input on what i am doing wrong.

Thanks!

Daniel

[Reza Sharifi · Accepted solution]

Daniel,

Did you also create layer-2 vlans?

example

vlan 10

name test-vlan

vlan 20

name test1-vlan

Also, until you assign physical ports to the vlans, they will not go to up and up mode

also under the interface

switchport

switchport mode acess

switchport vlan 10

HTH

Reza

[DanielSalzedoRed5]

D'oh!

Yes, I forgot to do the "vlan" command, and had just done the "int vlan" commands. I had assumed it would not allow you to allocate layer 2 interface ports to a VLAN that did not exist as a Layer-2 interface itself, but I guess we all know what happens when you make assumptions!

Thanks Reza.