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Re: Need a good reference for Spanning Tree posted 02/02/2002
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  Thats it

  Dave

Jim Newton wrote:

> Do you mean Interconnections?
>
> -----Original Message-----
> From: nobody@xxxxxxxxxxxxxx [mailto:nobody@xxxxxxxxxxxxxx]On Behalf Of
> MADMAN
> Sent: Friday, February 01, 2002 4:47 PM
> To: Brian
> Cc: SEAN; ccielab@xxxxxxxxxxxxxx
> 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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> --
> David Madland
> CCIE# 2016
> Sr. Network Engineer
> Qwest Communications Inc.
> 612-664-3367
> dave@xxxxxxxxxxxxxx
> _________________________________________________________________
> CCIE Security list: http://www.groupstudy.com/list/security.html
--
David Madland
CCIE# 2016
Sr. Network Engineer
Qwest Communications Inc.
612-664-3367
dave@xxxxxxxxxxxxxx
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CCIE Security list: http://www.groupstudy.com/list/security.html
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