From: ccie2be (ccie2be@nyc.rr.com)
Date: Fri Oct 03 2003 - 18:37:41 GMT-3
Thanks for getting back to me.
I asked because I make lots of configuration & typing mistakes. I wouldn't
purposely config vlan 5 on one side and vlan 6 on the other but I could very
easily see myself missing or mistyping a vlan in a list of 6 vlans if I had
to configure the list on both sides. So, I wanted to know primarily how to
quickly identify and correct a mistake if configuring the list on both sides
were required.
I was also thinking about the following scenario.
Assume 2 Cat 3550's connected by a trunk and both in VTP server mode.
Suppose I configure a list of allowed vlans for the trunk and then some time
later realize that I need to make changes to that list. Do I need to be
concerned with which Cat I make the changes on?
I would hope not but I wasn't sure. Given that the list of vlans on a trunk
do not need to be configured on both sides, it sounds like it's OK to make
the changes on either Cat. Do you agree?
I just learned about the show int trunk command. I think using that command
on both switches would verify if there's a problem. True?
Thanks again, dt
----- Original Message -----
From: <ihatecisco@att.net>
To: "ccie2be" <ccie2be@nyc.rr.com>
Cc: "Group Study" <ccielab@groupstudy.com>
Sent: Friday, October 03, 2003 4:31 PM
Subject: Re: 3550 - trunk config - allowed vlans
> think about your question.
>
> No it doesn't have to be.
>
> But if you have one side allowing Vlan 5, and another side allowing Vlan
6.
>
> why would you want to run trunking?
>
> > Hi,
> >
> > Does the list of allowed vlans HAVE to be configured on both sides of a
trunk
> > link?
> >
> > If it does but isn't, or if the set of allowed vlans doesn't match on
both
> > sides, what the best and easiest way to identify this problem?
> >
> > thanks, dt
> >
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