From: iron_tri (iron_tri@msn.com)
Date: Wed Dec 11 2002 - 22:46:06 GMT-3
It sounds like it may be an issue with the port configurations. As you
know, an EtherChannel will only form if all ports have the same attributes.
If you are using the "switchport trunk allowed vlan remove <vlan-list>"
command, you are doing this under a particular port that is configured as a
trunk. If the EtherChannel is already configured, trying to add or remove
vlans after the fact may be causing this issue. I would try to redo the
port configurations, make sure that all attributes are the same, in other
words, remove the unwanted vlans before configuring the EtherChannel; and
then see if you can form the EtherChannel. If you have already done this,
then this is a moot point.
HTH,
irontri
----- Original Message -----
From: "R. Scott King" <scking@cisco.com>
To: "Groupstudy" <ccielab@groupstudy.com>
Sent: Wednesday, December 11, 2002 1:41 PM
Subject: 3550s with Etherchannel
> I've got a pair of 3550s on which ports 1&2 on each switch are grouped
into
> an Etherchannel. When I go to remove vlan 2 from the trunk, it removes
all
> vlans instead of just 2. If I put back all the vlans, everything comes
> back. Anyone else seen this?
>
> "switchport trunk allowed vlan remove 2" is the command I'm using.
>
>
> R. Scott King
> Network Consulting Engineer
> Cisco Systems, Inc.
> Infrastructure Engineering Services - SP
> 9155 E. Nichols Avenue Suite 400
> Englewood, CO 80112
> 720.895.6056 (desk)
> 720.244.5879 (cell)
> .
.
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