From: davidytk (davidytk@netvigator.com)
Date: Wed Nov 28 2007 - 11:43:29 ART
Err-disable means your switch receive BPDUGUARD.
You need to disable the bpduguard in the access port to avoid this happen.
When you type bpduguard in the global, it is only affected the access-port
only, it will not have any effect on trunk port as trunk port will override
the bpduguard command.
Thanks
Best Regards
David
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
M_A_Jones@Dell.com
Sent: Wednesday, November 28, 2007 9:57 PM
To: darbyweaver@yahoo.com; narbikk@gmail.com
Cc: mounir.ccieisa@gmail.com; asim.mz@gmail.com; ccielab@groupstudy.com;
Daniel_Steyn@Dell.com
Subject: RE: bpdugaurd
"Proctor!"
"Somethings wrong with my switch, whats this err-disable???
"When I try the no shut command it doesn't work, I assure you it's a bad
switch!"
:)
Michael Jones
Network Engineer
Global Network Operations
Dell Inc. | Information Technology
W. 512.723.3268 | C. 512.966.6908
-----Original Message-----
From: Darby Weaver [mailto:darbyweaver@yahoo.com]
Sent: Tuesday, November 27, 2007 9:38 PM
To: Narbik Kocharians; Jones, Michael A - Authorized Dell Representative
Cc: mounir.ccieisa@gmail.com; asim.mz@gmail.com; ccielab@groupstudy.com
Subject: Re: bpdugaurd
Now...
Imagine that this global command was turned on in your lab at the
outset...
Hmmm....
A little havoc to the unwary? Not much to a seasoned careful eye, but
maybe to those not so careful, perhaps?
--- Narbik Kocharians <narbikk@gmail.com> wrote:
> At the global level you can enable BPDUguard by using the
> "Spanning-tree portfast bpduguard default", this will shut down the
> portfast enabled ports that receive BPDUs.
>
> This could also be done at the interface level, if its enabled at the
> interface level then, you don't need to enable portfast at the
> interface level. Once again the interface will transition into
> err-disable mode if that given port receives BPDUs.
>
> On 11/27/07, M_A_Jones@dell.com <M_A_Jones@dell.com>
> wrote:
> >
> > If you enable BPDU Guard on every interface, isnt
> that Global???
> >
> > :)
> >
> >
> > Michael Jones
> > Network Engineer
> > Global Network Operations
> > Dell Inc. | Information Technology
> > W. 512.723.3268 | C. 512.966.6908
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com
> [mailto:nobody@groupstudy.com] On Behalf Of
> > Mounir Mohamed
> > Sent: Tuesday, November 27, 2007 12:03 PM
> > To: Asim Zafar
> > Cc: Cisco certification
> > Subject: Re: bpdugaurd
> >
> > Dear Asim,
> >
> > BPDU can not be enabled globally, but you can
> enable BPDUGUARD with
> > portfast, in this case the command only effect all
> ports has portfast
> > enabled.
> >
> > You can enable portfast per interface or globally
> by use
> > SW1(config)#spanning-tree portfast default
> >
> > If you asked to enable BPDUGUARD on all
> access-ports you can do it with
> > the below tow commands
> >
> > SW1(config)#spanning-tree portfast default
> SW1(config)#spanning-tree
> > portfast bpduguard default
> >
> > You can verify it by:
> >
> > SW1#show spanning-tree interface f0/1 detail | inc
> Bpdu|portfast
> > The port is in the portfast mode by default
> > Bpdu guard is enabled by default
> >
> > Best Regards,
> > Mounir Mohamed
> >
> > On Nov 27, 2007 2:03 PM, Asim Zafar
> <asim.mz@gmail.com> wrote:
> >
> > > Hi Techs,
> > >
> > >
> > > If I implement BPDUGAURD on global config mode
> will it be implemented
> > > on all access ports or it will be implemented on
> all ports regardless
> > > access, trunk on the switch, if this is true
> then will we have to
> > > configure them separately on all ports.
> > >
> > >
> > > --
> > > Thanks & Regards,
> > >
> > > Asim Zafar
> > >
> > >
>
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