From: Jay Hennigan (jay@xxxxxxxx)
Date: Fri Aug 30 2002 - 02:14:39 GMT-3
On Wed, 28 Aug 2002, Bauer, Rick wrote:
> But what if the switches with their priority set to zero go away? The switch
> that you did not want to be root becomes root (that does not equal never).
> The only way to guarantee (in older CAT IOS) that a switch will "never"
> become root for a VLAN is to disable SPT for that VLAN.
If all the other switches go away, you no longer have a spanning tree.
You have a spanning stump. It doesn't span anything.
Suppose your scenario has three switches in a triangle; A, B, and C.
The requirement is that neither B nor C become root. Would you suggest
disabling spanning tree on both of them? I didn't think so. Setting
priority to 32767 would IMHO fulfill the requirement. For small values
of never, it would. :-)
-- Jay Hennigan - CCIE #7880 - Network Administration - jay@west.net NetLojix Communications, Inc. - http://www.netlojix.com/ WestNet: Connecting you to the planet. 805 884-6323
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