NIC Teaming in SuSE Linux

NIC Teaming in SuSE Linux

This change has to be done through console. Running ssh to the box wont' get the job done.

• Create a bonding file, ifcfg-bond0 in /etc/sysconfig/network.

    linux880:/etc/sysconfig/network # vi ifcfg-bond0
    DEVICE=bond0
    IPADDR=172.18.9.97
    NETMASK=255.255.255.0
    NETWORK=172.18.9.0
    BROADCAST=172.18.9.255
    STARTMODE=onboot
    BOOTPROTO=static
    BONDING_MASTER=yes
    BONDING_MODULE_OPTS='mode=1 miimon=100 
    / use_carrier=0'
    BONDING_SLAVE0=eth0
    BONDING_SLAVE1=eth1

• Create an ifcfg-ethx file for each interface in the bod. All interfaces should have MASTER and SLAVE definitions.

    linux880:/etc/sysconfig/network # vi ifcfg-eth0
    DEVICE=eth0
    STARTMODE=none
    BOOTPROTO=static
    MASTER=bond0
    SLAVE=yes
    USERCTL=no
   
    atl880:/etc/sysconfig/network # vi ifcfg-eth1
    DEVICE=eth1
    STARTMODE=none
    BOOTPROTO=static
    MASTER=bond0
    SLAVE=yes
    USERCTL=no

• Delete the original NIC configuration file ifcfg-eth-id-MACADDRESS, or edit the configuration file to disable it.

• Add the bonding alias to /etc/modprobe.conf.local and /etc/modules.conf so that system knows which one is the bonding file to loaded.

    linux880:/# more /etc/modprobe.conf.local
    #
    # please add local extensions to this file
    #
    alias bond0 bonding
   
    linux880: # more /etc/modules.conf
    alias bond0 bonding
    options bond0 miimon=100 mode=1

• Now restart the network devices: /etc/init.d/network restart

    linux880:~ # /etc/init.d/network restart
    Shutting down network interfaces:
       bond0                                  done
       eth0      device: Broadcom BCM5708 (rev 12)
       eth1      device: Broadcom BCM5708 (rev 12)
    Shutting down service network  .  . .  .  done
    Setting up network interfaces:
       lo
       lo        IP address: 127.0.0.1/8      done
       eth0      device: Broadcom BCM5708 (rev 12)
       eth0      Startmode is 'none'       skipped
       eth1      device: Broadcom BCM5708 (rev 12)
       eth1      Startmode is 'none'       skipped
       bond0
       bond0     enslaving interfaces:  eth0 eth1
       bond0     IP address: 172.18.9.97/24   done
    Setting up service network  .  .  .  .  . done

• Run ifconfig to view the configuration change in network setting. Add it should shows bond0, eth0, eth1 and lo in the configuration.