From: Bob Sinclair (bsin@cox.net)
Date: Thu Jun 03 2004 - 08:35:39 GMT-3
Tom,
Root path cost is cumulated cost plus ingress cost. Try increasing cost on
the downstream side of a link.
HTH,
Bob Sinclair
CCIE #10427, CISSP, MCSE
www.netmasterclass.net
----- Original Message -----
From: "Tom Young" <gitsyoung@yahoo.co.jp>
To: <ccielab@groupstudy.com>
Sent: Thursday, June 03, 2004 5:44 AM
Subject: Two question about STP
> Hi, group
>
> I have two question about STP.
>
> 1, I set the port cost as 2000 on one switch's interface ,
> but it seems the cost couldn't be transfered to the
> downstream switch, the downstream switch still use the
> actual cost to calculate the STP. And show the
> spanning-tree on the downstream switch , I won't see the
> cost 2000 be added.
>
> 2, All the ports of root and secondary root are always
> keep forwarding status in STP calculation , even change
> the port cost to a bigger value, why ?
>
> Thanks alot
>
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