a few of us had a discussion on this last week..
check out last weeks post
Larry Letterman
Network Engineer
Cisco Systems Inc.
-Original Message-
From: [EMAIL PROTECTED] [mailto:nobody;groupstudy.com]On Behalf Of
Azhar Teza
Sent: Monday, October 21, 2002 9:30 PM
To: [EMAIL PROTECTED]
Subject: Shutting Vlan1 down [7:56052]
In Catalyst 6509, IOS 12.1 shutting Interface VLAN 1 down should
not create
any problems since the VLAN 1 itself will still be active. The
question is
that the latest IOS version allows you to remove VLAN 1 from you
trunk ports
which is fine as long as the Data and the Management VLAN is not 1. I was
reading Cisco LAN Switching Book, and found out that most of the control
traffic such as VTP, DISL/DTP (used for trunk negotiation) , CDP, and PAGP
always use VLAN 1. Won't it create a major problem if VLAN 1 is removed
from the trunk links. When is it possible to remove VLAN 1 from all trunk
links.?Thanks, Teza
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