From: Jim Newton (jnewton@xxxxxxxxxxxxxxx)
Date: Fri Feb 01 2002 - 20:07:33 GMT-3
Do you mean Interconnections?
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
MADMAN
Sent: Friday, February 01, 2002 4:47 PM
To: Brian
Cc: SEAN; ccielab@groupstudy.com
Subject: Re: Need a good reference for Spanning Tree
Another good book on bridging is Radia Pearlman's. I have it at my desk
but
I'm at home and the title escapes me.
Dave
Brian wrote:
> On Fri, 1 Feb 2002, SEAN wrote:
>
> > Can anyone recommend a good reference to how spanning tree chooses which
> > ports to go up to the root bridge?
>
> LAN Switching by CiscoPress, or Buildiing Multilayer Switched Networks by
> CiscoPress.
>
> >
> > Basically, I have the following set up - two catalyst 5500 switches with
> > two trunks between them:
> > Switch A port 1/1 to Switch B port 1/1
> > Switch A port 2/1 to Switch B port 2/1
> >
> > Seems the switch always wants to use 1/1 as the spanning tree root
> > (unless it's not available). If 1/1 is disabled, and 2/1 is forwarding
> > fine, and I reenable 1/1, spanning tree recalculates, and 1/1 becomes
> > forwarding again.
> >
> > These are supervisor III's, and I was thinking that it probably wants to
> > use the ports with the lowest mac address? But if I do show mod, both
> > supervisor modules show the same mac address range.
> >
> > Can anyone recommend a good resource on how spanning tree chooses ports?
> >
> > ------------------------------------------------------------------------
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