I was going to post the same answer (there's one built-in MAC for each
supported VLAN) but I didn't have any documents or info to back me up.....
and I didn't wanna look like a fool =) (like I've NEVER done that... HA)

So I'll ride your coattails and say "Yeah... that's what I was going to
say"....

Mike W.

"Priscilla Oppenheimer"  wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Phil,
>
> Your answer makes sense, but remember this is Cisco we're talking about!
;-)
>
> The link says "The supervisor engine has a pool of 1024 MAC addresses that
> are used as the bridge IDs for the VLAN spanning trees." The link is
> referring to the switch's own MAC addresses, not the ones in its bridging
> table. The switch has so many MAC addresses because Cisco supports one
> spanning tree per VLAN. There's a different bridge ID for each VLAN.




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