Red Hat Knowledgebase

The following example illustrates the steps to setup multiple bonds in Red Hat Enterprise Linux 5 with different bonding modes.

1. Edit /etc/modprobe.conf

   /etc/modprobe.conf
   
   alias bondX bonding
   options bonding max_bonds=X

2. Edit/Create the file /etc/sysconfig/network-scripts/ifcfg-bondX and mention the bonding options using the directive

   
   DEVICE=eth2
   
   ONBOOT=yes
   
   MASTER=bond1
   
   SLAVE=yes
   
   
   
   DEVICE=eth3
   
   ONBOOT=yes
   
   MASTER=bond1
   
   SLAVE=yes BONDING_OPTS=""

   
   
   

3. If the requirement is to configure 2 bonds; bond0 and bond1 and each with two pairs of Slaves

    

   /etc/modprobe.conf

   alias bond0 bonding
    alias bond1 bonding
    options bonding max_bonds=2

   
   

4. Edit/Create the file /etc/sysconfig/network-scripts/ifcfg-bond0 and mention the bonding options

   DEVICE=bond0
   ONBOOT=yes
   BOOTPROTO=dhcp
   USERCTL=no
   BONDING_OPTS="mode=1 miimon=100 primary=eth0"

   
   

5. Edit/create the file /etc/sysconfig/network-scripts/ifcfg-bond1 and mention the bonding options

   DEVICE=bond1
   ONBOOT=yes
   BOOTPROTO=dhcp
   USERCTL=no
   BONDING_OPTS="mode=0 miimon=100 "

   
   

6. For bond0, slave interfaces /etc/sysconfig/network-scripts/ifcfg-eth[0,1]

   DEVICE=eth0
   MASTER=bond0
   SLAVE=yes
   ONBOOT=yes
    
   DEVICE=eth1
   ONBOOT=yes
   MASTER=bond0
   SLAVE=yes

   
   
   

7. For bond1, slave interfaces /etc/sysconfig/network-scripts/ifcfg-eth[2,3]

   DEVICE=eth2
   ONBOOT=yes
   MASTER=bond1
   SLAVE=yes
    
   DEVICE=eth3
   ONBOOT=yes
   MASTER=bond1
   SLAVE=yes

    

8. Reboot the system or reload the bonding modules to load the changes.