From: Darby Weaver (ccie.weaver@gmail.com)
Date: Sun Dec 14 2008 - 01:19:47 ARST
spanning-tree bpduguard enable fits your requirements.
Consider that this option is protecting you from getting bpdu's from a
device on that "Interface" (recall their is a global configuration option as
well) and if BPDU's are received the port goes into err-disable state.
versus
spanning-tree bpdufilter not only drops inbound BPDU's like the above, but
it also does not SEND BPDU's out the interface either. Nor does it send the
interface into err-disable state when BPDU's are received. So other
traffice on the port would STILL be received.
On Sat, Dec 13, 2008 at 3:57 PM, nouman abbasi <abbasi.nouman@gmail.com>wrote:
> Hi,
>
> Which answer fits as per context of the question.
>
>
> (Q) Configure Int fa 0/20 of SW4 to disable the interface if a bridge
> protocol data unit is received on the interface.
> <A> interface fa 0/20
> spanning-tree bpduguard enabe
>
> or
>
> <A1> interface fa 0/20
> spanning-tree bpdufilter enabe
>
>
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