Etherchannel sample configuration:
int range fa0/1 – 2
switchport mode trunk
switchport trunk encapsulation dot1q
channel-group 1 mode (Active-LACP Desirable – PAgP) (The most common seems to be active, as PAgP is Cisco Proprietary)
You can now configure the Port Channel as if it were a single interface:
int port-channel 1
switchport mode trunk
switchport trunk allowed vlan 1,2,3
Or shutdown, etc.
To view result: sh etherchannel port-channel
Tells you which individual switchports are in the group, etc, and also the protocol – LACP eg
sh etherchannel summary gives you a line by line list of port channels.
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