RE: Network Degraded

Pavel,

What I was referring to, I know it wasn't clear as to interface or global, was
the global version of bpdufilter that will disable the portfast properties.
But I agree, it's probably safest to just have the port disabled to discourage
people from randomly plugging in things.

-ryan

From: Pavel Bykov [mailto:slidersv_at_gmail.com]
Sent: Friday, May 15, 2009 1:46 PM
To: Ryan West
Cc: Muhammad Saleem; ccielab_at_groupstudy.com
Subject: Re: Network Degraded

I'd recoomend to go bpduguard.
Either:
(config)#spanning-tree portfast bpduguard
or
(config-if)#spanning-tree bpduguard enable

With bpdufilter, If you connect two ports, both of which are with "bpdufilter"
none of them will send bpdu, and there still will be a loop.

On Fri, May 15, 2009 at 4:24 PM, Ryan West
<rwest_at_zyedge.com<mailto:rwest_at_zyedge.com>> wrote:
Put spanning-tree portfast bpdufilter enable or bpduguard to either take it
out of portfast or err-disable it.

-ryan

-----Original Message-----
From: nobody_at_groupstudy.com<mailto:nobody_at_groupstudy.com>
[mailto:nobody_at_groupstudy.com<mailto:nobody_at_groupstudy.com>] On Behalf Of
Muhammad Saleem
Sent: Friday, May 15, 2009 10:25 AM
To: ccielab_at_groupstudy.com<mailto:ccielab_at_groupstudy.com>
Subject: Network Degraded

Hi Experts,

How to protect Cisco switches (2960G, 3750) if someone insert the direct
pulled cable from switch into the same switch wall Data outlet while all the
ports have portfast and loop guard filter enabled, I will appreciate all
suggestions

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Received on Fri May 15 2009 - 13:48:35 ART