From: LJ (lj@2u2.nu)
Date: Wed Jul 09 2008 - 16:13:39 ART
On Wed, 9 Jul 2008 12:00:22 -0600
"John" <jgarrison1@austin.rr.com> wrote:
: 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
If I got a task like that and I could make it work, and it works.. well.. is it nice?.. no.. but if it works...
I will try this on my pod.
: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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