Here configure EtherChannel

Sw1

Switch>en
Switch#conf
Switch#configure t
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)#int rang fa 0/1 - 4
Switch(config-if-range)#channel-group 1 mode desirable
Switch(config-if-range)#
Creating a port-channel interface Port-channel 1

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to down

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to down

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to down

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/4, changed state to down

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/4, changed state to up


%LINK-5-CHANGED: Interface Port-channel 1, changed state to up


Sw2

Switch>
Switch>en
Switch#conf
Switch#configure ter
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)#int
Switch(config)#interface ran fa
Switch(config)#interface ran fastEthernet 0/1 - 4
Switch(config-if-range)#channel-group 1 mode desirable
Switch(config-if-range)#