From: Adam Crisp (adam.crisp@totalise.co.uk)
Date: Mon Sep 30 2002 - 08:31:24 GMT-3
I think this is an Ethernet thing, the same happens on back ro back Routers
with a X-over cable
I think it's because the devices don't close down the electrical carrier
when admin shutting the interface and the electrical carrier is how the
interface is determined up.
I haven't tried it on a 3550, but I would imageing that the behavour is the
same!
Adam
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Pieter Jordaan
Sent: 30 September 2002 11:45
To: ccielab@groupstudy.com
Subject: How to shut a interface on a switch
Hi group
I was wondering if any of you could answer this question.
I have noticed on the 2924 and 2950 switches that when I shut an interface,
the router attached don't go into a down/down state. The link stays up.
This could be a potential problem if you want to test for example, your
backup interface command by shutting the port on the switch because the
router interface doesn't go down.
Does this also happen on the 3550 and if so, how would you test things in
the lab if shutting down the switch interface doesn't shut/kill the link
like on the cat5k
TIA
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