Ether Channel

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 Layer 2 Ether Channel

1) Static Etherchannel


SW(config-if-rang)#channel-group 1 mode on


- Both switches have to configure using ON/ON

- No negotation

- Interface type must be the same(ethernet/giga)

- Speed duplex must be the same (full/half)


2) LACP- Multi Vendor


- Both switches must be Active/Active or Active/Passive

- SW(config-if-range)#channel-group 1 mode Active


3) PAGP- Cisco Property

- Both Switches must be Desirable(initiate)/Auto(response)

Or Disable/Disable

SW(config-if-range)#channel-group 1 mode desirable


Layer 3 Ether Channel

- Assign the ip address to the port channel group.

SW(config-if-rang)#no switchport

SW(config-if-rang)#channel-group 1 mode on

SW(config-if-rang)#int po1

SW(config-if-rang)#ip add 10.10.10.1 255.255.255.252


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