From: Frank Jimenez (franjime@cisco.com)
Date: Sat Oct 11 2003 - 07:17:33 GMT-3
Per:
http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/12114ea1/ol395001.htm
VLAN 1 minimization to reduce the risk of spanning-tree loops or storms by
allowing VLAN 1 to be disabled on any individual VLAN trunk link. With this
feature enabled, no user traffic is sent or received. The switch CPU continues
to send and receive control protocol frames.
Looks like this feature came with IOS release 12.1(14)EA1 for the 3550...
Frank Jimenez, CCIE #5738
franjime@cisco.com
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Ken.Farrington@barclayscapital.com
Sent: Friday, October 10, 2003 11:00 AM
To: ccielab@groupstudy.com
Subject: 3550 Native VLAN - Disable
Hi guys,
Is it possible to disable the native vlan by using the following.
no switchport trunk native vlan 1
And also, what is a show command to show you if the native vlan is enabled or
disabled (if you can do this) for the dot1q trunk?
Many thx
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