Re: Root guard only guards 1 vlan or all vlans ?

From: Dan (method@b.astral.ro)
Date: Sat May 19 2007 - 13:05:37 ART


John Gibson wrote:
> 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.
>
>

root guard is configured per port so :
if you have an trunk with your provider , it will guard all the vlans
allowed on that trunk
if you have an access port to your provider you , it will guard only the
access vlan.

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