EtherChannel to Increase Link Capacity

Here example configure to increase link capacity use Ethernet interface is EtherChannel. Every ethernet interface configure use 'channe-group'.

SW1

interface FastEthernet0/1  
  channel-group 1 mode on 
! 
interface FastEthernet0/2 
  channel-group 1 mode on 
! 
interface FastEthernet0/3 
  channel-group 1 mode on 
! 
interface Port-channel1 
  switchport mode dynamic desirable

SW2

interface FastEthernet0/1  
  channel-group 1 mode on 
! 
interface FastEthernet0/2
  channel-group 1 mode on 
! 
interface FastEthernet0/3 
  channel-group 1 mode on 
! 
interface Port-channel1 
  switchport mode dynamic desirable