on my previous release *cough* if inenslave was needed, bonding instructions didn't work through aggregation did.
iface lo inet loopback
iface bond0 inet static
post-up ifenslave bond0 eth0 eth1
pre-down ifenslave -d bond0 eth0 eth1
#iface wlan0 inet dhcp
for some reason the unmentioned former disto, i could not get wireless networking under this configuration and a simple wlan0 interface, in case either cable were to sever it would retain a wireless. the bonding was done for speed, and i believe i can't get faster than mode=4.
help appreciated. i'm a long time user of linux, but not a guru, i'm a linux mechanic