Management vlan down

[swicklund]

Setting up a new Catalyst 3750.  It is hooked up to a switch stack (two 3750s).  On the stack the master has both fiber ports filled, so I am using GigabitEthernet 2/0/1 on the other switch.

On the new switch I have a Ubiquity AP connected to 1/0/15 and the port is up.

CDP neighbor shows the connection, however the managment vlan is down/down.  A partial config is attached.  Any suggestions are appreciated.

[Philip D'Ath]

Don't do it that way if they are the same family of 3750's.  Just get extra stacking cables.  This document shows how to connect them up.

http://www.cisco.com/c/en/us/products/collateral/switches/catalyst-3750-series-switches/prod_white_paper09186a00801b096a.html

[swicklund]

Sorry, I must not be clear.  The new switch is at a new location so I can't stack the new switch.  It has a few block fiber run to the stack.

[glen.grant]

  Make sure vlan 254 is created on the new switch . Do a show vlan on the new switch and see what vlans are created .

[swicklund]

This ended up being a Port Channel Config issue.  Thanks for everyone's suggestions.

[johan oosterwaal]

Hello Swicklund,

it's not quite clear how the switches are connected to each other(on which interface).

but what i can see in the config that you send is that on port 2/0/1 there is no switchport trunk native vlan 254 so it wil use vlan 1 as default, which is in shutdown.

on both sides need to have the same native vlan.

hoop this helps

[swicklund]

Inn switch is the new one - Gigabit1/0/1 is connected to 2/0/1 on the stack.  

On the stack 1/0/1 is connected to the core.

A very simple diagram attached.

I think what you might mean is that we need that command on 1/0/1 on the StudentAnnex switch.  Vlan 254 is active on the Inn switch.  I will go ahead and try that.  Thank you for the suggestion.

[Philip D'Ath]

As long as both switches are trunking you don't need to touch the native VLAN.