RHEL5下双网卡bonding做法(2)

                 among the group of highest speed slaves in the bond.

                 When a link is reconnected or a new slave joins the
                 bond the receive traffic is redistributed among all
                 active slaves in the bond by initiating ARP Replies
                 with the selected MAC address to each of the
                 clients. The updelay parameter (detailed below) must
                 be set to a value equal or greater than the switch's
                 forwarding delay so that the ARP Replies sent to the
                 peers will not be blocked by the switch.

                 Prerequisites:

                 1. Ethtool support in the base drivers for retrieving
                 the speed of each slave.

                 2. Base driver support for setting the hardware
                 address of a device while it is open.   This is
                 required so that there will always be one slave in the
                 team using the bond hardware address (the
                 curr_active_slave) while having a unique hardware
                 address for each slave in the bond.   If the
                 curr_active_slave fails its hardware address is
                 swapped with the new curr_active_slave that was
                 chosen.