Bonding works on Ethernet interfaces.
(EOIP as well)
I got it to work with "bondingrr"
I have found that after restart, there are issues with the bonding just change the bonding method on one of the stations and than back again. The "pipe" will come back up.
I have a 4.5Mb pipe up with three SBE T1 cards.
I am trying to get support for quad cards addded so I can create a 10Mb pipe over Ts for a client. (Cheapre than a T3, and more fault tollerant).
Things that make you go "Hmmmmmmmm"...