Giuseppe Larosa Sun, 09/21/2008 - 11:08
User Badges:
  • Super Silver, 17500 points or more
  • Hall of Fame,

    Founding Member

Hello Raul,

look at the following link:

this is for a C3750 IOS based switch.

the member links must have the same config about speed, duplex, access vlan (if access port) or native vlan and list of permitted vlans (if a L2 trunk link)

A L3 etherchannel can be configured by configuring the logical interface port-channel X.

Very important for L2 trunks all changes in the list of permitted vlans has to be done on the logical port-channel X and not on the single member links otherwise some instabilities can occur.

Hope to help


glen.grant Sun, 09/21/2008 - 14:45
User Badges:
  • Purple, 4500 points or more

If you have ports of the same speed ,duplex etc it can be as simple as putting " channel-group X mode desirable or channel-group X mode active if you want to use LACP " on the ports you want to use .


This Discussion