Re: Etherchannel misconfig guard

From: Dimitar Mojsovski <dimitar.mojsovski_at_gmail.com>
Date: Mon, 23 Nov 2009 14:44:13 +0100

Syed Moazzam Daimi wrote:
> Hi Dimitar,
>
> Etherchannel mis-config guard works only for Etherchannel configured
> in ON mode as you are forcefully configuring
> etherchannel in ON mode.
>
> If there is any misconfig like below, etherchannel protocol would take
> care of the port from participating in channel.
>
> SW1 (3 ports) ======etherchannel ON mode=======(2ports)SW2
> (stp root)
>
> Ideally its a mis-config on SW2 as only 2 ports are in the
> etherchannel instead of 3 ports. If you have configured STP
> Etherchannel misconfig guard, which would detect and see the STP
> bpdu's from SW1 to SW2 seen on channel/non-channel ports and would
> put the ports into error-disabled state to avoid any misconfigs.
>
> Also see,
> http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SXF/native/configuration/guide/stp_enha.html#wp1020683
>
> HTH
>
> Syed Moazzam Daimi
> CCIE # 22100
>
I think I get it now :-)
Thanks for your explanations !

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Received on Mon Nov 23 2009 - 14:44:13 ART

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