If the problem? Port reject suggested that any allocation, issuing allocation?
Router (configure) # interface range gigabitethernet1/1-2 Router (config-if) #no ip address
Router (config-if) #switchport
Router (config-if) #switchport trunk encapsulation dot1q
Router (config-if) #switchport mode trunk
Router (config-if) 1 mode on #channel-group
I referred to the order, where there is the problem?
Wrong suggested : Command rejected (Port-channel1, Gi3/1) : Either port is L2 and L is port-channel
3, or vice-versa
Command rejected (Port-channel1, Gi3/2) : Either port is L2 and L is port-channel
3, or vice-versa
Find reasons and it is not necessary to create interface port-channel * Otherwise, it is thought that the three-tier etherchannel
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