Root guard only guards 1 vlan or all vlans ?

From: John Gibson (johngibson1541@yahoo.com)
Date: Sat May 19 2007 - 10:59:49 ART


I know I can do a simple experiment, but I just wonder
if there is some insight story.

When we make a root guard so that our service provider
doesn't take over root of our local VLANs (in case
provider has the same vlan IDs), when the service
provider does attempt to take over root of our local
VLANs , will our guarding ports block all vlans or
just those vlans in conflict ?

I have a very bad service provider. But my local
manager insists this is the best service provider we
can get.

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