Re: Network Degraded

What happened before the switch went down?
What does it mean "Was down"? Was it in Rommon? Rebooting? Tracebacking?

What are all the options that you are enabling on the interface? Are you by
any chance filtering BPDUs as well?

On Fri, May 15, 2009 at 8:57 PM, Muhammad Saleem <msaleems_at_gmail.com> wrote:

> All ports are individually (not globally) with *spanning-tree portfast
> bpdufilter enable) *but this filter didnt help, and the whole switch was
> down
>
>
> ------------------------------
>
> *From:* Pavel Bykov [mailto:slidersv_at_gmail.com]
> *Sent:* Friday, May 15, 2009 9:45 PM
>
> *To:* Ryan West
> *Cc:* Muhammad Saleem; ccielab_at_groupstudy.com
> *Subject:* Re: Network Degraded
>
>
>
> That's CCIE for you :)
>
> On Fri, May 15, 2009 at 7:48 PM, Ryan West <rwest_at_zyedge.com> wrote:
>
> Pavel,
>
>
>
> What I was referring to, I know it wasnt clear as to interface or global,
> was the global version of bpdufilter that will disable the portfast
> properties. But I agree, its 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> 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] On Behalf Of
> Muhammad Saleem
> Sent: Friday, May 15, 2009 10:25 AM
> To: 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
>
>
> Blogs and organic groups at http://www.ccie.net
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>
>
>
>
>
>
> --
> Pavel Bykov
> ----------------
> Don't forget to help stopping the braindumps, use of which reduces value of
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>
>
>
> --
> Pavel Bykov
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--
Pavel Bykov
----------------
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