From: Rob Hopkins (rshopkins@xxxxxxxxxxxxx)
Date: Tue May 15 2001 - 23:42:36 GMT-3
hmmm no
Thanks,
Rob Hopkins
1.6180339887499
----- Original Message -----
From: "sanjay" <ccienxtyear@hotmail.com>
To: "Rob Webber" <rwebber@callisma.com>; "Rob Rummel"
<Rummel@Hawaii.rr.com>; <ccielab@groupstudy.com>
Sent: Tuesday, May 15, 2001 9:07 PM
Subject: Re: Dumb Bridging Question
> Switching and bridging sometimes result in non optimal routing of packets
> because every packet must go through the root bridge of the spanning tree.
>
>
>
>
>
> ----- Original Message -----
> From: "Rob Webber" <rwebber@callisma.com>
> To: "Rob Rummel" <Rummel@Hawaii.rr.com>; <ccielab@groupstudy.com>
> Sent: Tuesday, May 15, 2001 6:27 AM
> Subject: RE: Dumb Bridging Question
>
>
> > I don't think this is a dumb question - many people don't fully
understand
> > Spanning Tree.
> >
> > No, all traffic does not have to flow through the root. It is simply
used
> as
> > a reference point from which all bridges create a network with no loops.
> >
> > The root is the bridge with the lowest number for root priority. On
every
> > segment one bridge is the "designated" bridge. This bridge will be
> > forwarding traffic from that segment. The designated bridge is the one
> with
> > the lowest path cost to the root. The path cost is calculated by adding
> the
> > outbound costs on all segments to reach the root. In the case where two
or
> > more bridges have the same path cost to the root, the designated bridge
is
> > the one with the lowest priority.
> >
> > You can start drawing some diagrams with one root bridge and many other
> > bridges. Create some loops and start seeing which links have to be in
> > "blocking" mode to prevent loops (and how you can control which ones are
> > blocked based on path cost). It will become clear not all traffic HAS to
> > pass through the root bridge.
> >
> > Good luck - Rob.
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> > Rob Rummel
> > Sent: Tuesday, May 15, 2001 12:35 AM
> > To: ccielab@groupstudy.com
> > Subject: Dumb Bridging Question
> >
> >
> > Cant believe I'm so far along my studies but don't understand a basic
> > fundamental principle so please bear with me.
> > When a Root bridge is elected does all the traffic in that STP go THRU
> > the route bridge or is it just for REFRENCE for STP????
> >
> > Any sufficiently advanced technology is indistinguishable from magic.
> > - Arthur C. Clarke
> > **Please read:http://www.groupstudy.com/list/posting.html
> > **Please read:http://www.groupstudy.com/list/posting.html
> **Please read:http://www.groupstudy.com/list/posting.html
**Please read:http://www.groupstudy.com/list/posting.html
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