Re: Etherchannel misconfig guard

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

Blogs and organic groups at http://www.ccie.net
Received on Mon Nov 23 2009 - 08:26:19 ART