1. Attach and detach slave interfaces to a bonding device. This is a tool to attach and detach slave network interfaces to a bonding device. A bonding device will act like a normal Ethernet network device to the kernel, but will send out the packets via the slave devices using a simple round-robin scheduler. This allows for simple load-balancing, identical to "channel bonding" or "trunking" techniques used in switches. The kernel must have support for bonding devices for ifenslave to be useful. From Debian 3.0r0 APT