Configure a bridge interface over a VLAN tagged bonded interface

SOLUTION VERIFIED

• February 5 2014 KB340153

Environment

• Red Hat Enterprise Linux 6 (All Versions)
• Red Hat Enterprise Linux 5 (All Versions)

Issue

• Need to configure VLAN on bonded interface and a bridge on top of this VLAN tagged bonded interface.

Resolution

• Configure the interface configuration files as below:
  NOTE: In below example, physical interfaces are named as eth0 and eth1, bonded interface is named as bond0, VLAN over bond is named as bond0.402 and a bridge over this VLAN is named as br0.

/etc/sysconfig/network-scripts/ifcfg-eth0
-----------------------------------------
DEVICE=eth0
ONBOOT=yes
NM_CONTROLLED=no
MASTER=bond0
SLAVE=yes
HWADDR=XX:XX:XX:XX:XX:XX
BOOTPROTO=none
USERCTL=no

/etc/sysconfig/network-scripts/ifcfg-eth1
-----------------------------------------
DEVICE=eth1
ONBOOT=yes
NM_CONTROLLED=no
MASTER=bond0
SLAVE=yes
HWADDR=XX:XX:XX:XX:XX:XX
BOOTPROTO=none
USERCTL=no

/etc/sysconfig/network-scripts/ifcfg-bond0
-----------------------------------------
DEVICE=bonde0
ONBOOT=yes
NM_CONTROLLED=no
USERCTL=no
BOOTPROTO=none
BONDING_OPTS="mode=1 miimon=100"

/etc/sysconfig/network-scripts/ifcfg-bond0.402
----------------------------------------------
DEVICE=bond0.402
ONBOOT=yes
NM_CONTROLLED=no
BOOTPROTO=none
VLAN=yes
BRIDGE=br0

/etc/sysconfig/network-scripts/ifcfg-br0
----------------------------------------
DEVICE=br0
TYPE=Bridge
BOOTPROTO=static
ONBOOT=yes
NM_CONTROLLED=no
IPADDR=X.X.X.X
NETMASK=X.X.X.X
GATEWAY=X.X.X.X

• For RHEL5 , add below line to /etc/modprobe.conf so as to load module.

alias bond0 bonding

　　NOTE: RHEL6 does not need above step.

• Restart network service.

service network restart