What is EtherChannel Misconfiguration Guard?

--> EtherChannel Misconfiguration Guard is a method of finding EtherChannel is working properly or not.

-->  Basically it will check another side of the EtherChannel is having correct parameters or not like speed, duplex.

--> If there is misconfiguration then the switch will place all the interfaces in error-disabled state.

-->  Ether Channel Misconfiguration Guard works by looking at the Port-ID of the incoming BPDU from a neighbor switch.

To configure Ether Channel Misconfiguration Guard

Switch(config)#spanning-tree etherchannel guard misconfig

verification:

Switch # show spanning-tree summary


Switch is in rapid-pvst mode
Root bridge for: none
Extended system ID                    is enabled
Portfast Default                           is disabled
PortFast BPDU Guard Default  is disabled
Portfast BPDU Filter Default     is disabled
Loopguard Default                      is disabled
EtherChannel misconfig guard   is enabled
UplinkFast                                    is disabled
BackboneFast                               is disabled
Configured Pathcost method used   is short