Nathan,
Check the original paper by Radia Perlman, or better yet have a read of
Chapter 3 of her book "Interconnections - Bridges, Routers, switches and
Internetworking Protocols" 2nd Edition.
Serge :)
----- Original Message -----
From: "Miller, Nathan - BSC" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, February 06, 2001 2:08 PM
Subject: Spanning Tree Question - Root Port Selection
> I have been looking for a while for further documentation of the process
by
> which a switch selects its root port. Most of the books that I have
> searched for this information say something similar to the following quote
> from a CCO page: "A bridge's root port is the port through which the root
> bridge can be reached with the least aggregate path cost, a value that is
> called the root path cost." My problem is that they all seem to stop
there.
> My question is this. If the root path cost is the same on multiple switch
> ports, how does STA determine which is the root port? Does it follow the
> same course as it would when selecting a designated port (root bridge,
root
> path cost, sender ID, sender port).
> Many thanks for your thoughts.
> Nathan Miller
>
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