From: John (jgarrison1@austin.rr.com)
Date: Wed Jul 09 2008 - 15:00:22 ART
Well if I did that I would have a loop, and even if STP doesn't detect it
that can't be good for a network....I think.....whats STP for again ;P
----- Original Message -----
From: "LJ" <lj@2u2.nu>
To: "John" <jgarrison1@austin.rr.com>
Cc: <ccielab@groupstudy.com>
Sent: Wednesday, July 09, 2008 11:34 AM
Subject: Re: Can you make a root port a designated port?
>I meant this
>
> OK, what about this.. you make the trunk port asymmetrical.. dot1q tunnel
> :)
> then make it exit in the segment where it will be the designated port for
> it is the designated port tunneled through the root port on one end and
> out
> on the relevant segment on the other end... the downstream switches will
> have a tunneled designated port which is the tunneled designated port
> all the way to the root bridge.. it is worth a try ;)
>
> On Wed, 9 Jul 2008 11:32:41 -0600
> "John" <jgarrison1@austin.rr.com> wrote:
> : Exactly!!!! I've moved on
> : ----- Original Message ----- From: "LJ" <lj@2u2.nu>
> : To: "John" <jgarrison1@austin.rr.com>
> : Cc: <ccielab@groupstudy.com>
> : Sent: Wednesday, July 09, 2008 11:14 AM
> : Subject: Re: Can you make a root port a designated port?
> : : :> OK, what about this.. you make the trunk port asymmetrical.. dot1q
> tunnel
> :> :)
> :> than make it exit in the segment where it will be the designated port
> for
> :> it is
> :> the root port tunneled... ouch..
> :>
> :>
> :> On Wed, 9 Jul 2008 11:09:42 -0600
> :> "John" <jgarrison1@austin.rr.com> wrote:
> :> : Exactly!!! the task is to make the trunk port f0/14 a designated
> port.
> :> The problem is that f0/14 is a root port.
> :> : There are 2 other ports connected to the root f0/13 and f0/15. If I
> :> change the cost all I'm doing is possibly
> :> :making another port the root port and putting f0/14 into altn blocking
> :> state. Even if I make f0/13 or f0/15 the root
> :> :port(I would have to make them trunks which was not asked for anywhere
> in
> :> the lab). I can't make f0/14 a designated
> :> :port, because that makes a loop and STP won't allow that. The SG is
> wrong
> :> wrong wrong, and I was trying to find out
> :> :if there is some "exotic" way to accomplish the task.
> :> : ----- Original Message ----- From: "LJ" <lj@2u2.nu>
> :> : To: "John" <jgarrison1@austin.rr.com>
> :> : Cc: <ccielab@groupstudy.com>
> :> : Sent: Wednesday, July 09, 2008 10:46 AM
> :> : Subject: Re: Can you make a root port a designated port?
> :> : : :>A designated port points the opposite direction than a root port.
> :> :> While a root port points towards the root a designated port points
> :> :> downstream away from the root.
> :> :>
> :> :> To make a port designated you have port cost and port priority.
> :> :>
> :> :> I can't fully follow you.. Can you paste the whole task here?
> :> :>
> :> :> On Wed, 9 Jul 2008 10:23:12 -0600
> :> :> "John" <jgarrison1@austin.rr.com> wrote:
> :> :> : I have a switch with 3 connections to another switch that is the
> :> root.
> :> :> One of
> :> :> : the connections is a dot1q trunk. I'm tasked with making it a
> :> :> designated
> :> :> : port. I have tried a number of configurations and I've come to
> :> realize
> :> :> that I
> :> :> : cant make it designated because that would mean that one of the
> other
> :> :> ports
> :> :> : has to become root. If I could then make make the port designated
> I
> :> :> have a
> :> :> : loop.
> :> :> : : Ports going to the root can only have two states root forwarding
> or
> :> :> altn
> :> :> : blocking right?
> :> :> : : Can anyone see a way to accomplish this? besides making my
> switch
> :> the
> :> :> root?
> :> :> : : :
> :> :>
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