Usage: ifenslave [-f] […]
    ifenslave -d […]
    ifenslave -c
    ifenslave —help
    要创建一个绑定设备，只需遵循以下三个步骤:
    -确保正确装载所需的驱动程序:
    # modprobe bonding ; modprobe <3c59x|eepro100|pcnet32|tulip|...>
    - assign an IP address to the bond device :
    # ifconfig bond0 netmask broadcast
    - attach all the interfaces you need to the bond device :
    # ifenslave [{-f|—force}] bond0 eth0 [eth1 [eth2]…]
    If bond0 didn’t have a MAC address, it will take eth0’s. Then, all
    interfaces attached AFTER this assignment will get the same MAC addr.
    (except for ALB/TLB modes)
    To set the bond device down and automatically release all the slaves :
    # ifconfig bond0 down
    To detach a dead interface without setting the bond device down :
    # ifenslave {-d|—detach} bond0 eth0 [eth1 [eth2]…]
    To change active slave :
    # ifenslave {-c|—change-active} bond0 eth0
    To show master interface info
    # ifenslave bond0
    To show all interfaces info
    # ifenslave {-a|—all-interfaces}
    To be more verbose
    # ifenslave {-v|—verbose} …
    # ifenslave {-u|—usage} Show usage
    # ifenslave {-V|—version} Show version
    # ifenslave {-h|—help} This message