Ethernet channel bonding

Guys, Recently I used two lan cards (eth0 and eth1) attached on a system to bond as a single lan card for fault tolerance.

So I followed below steps

Step 1) Change kernel parameter to bound two lan cards as a single virtual card bond0

echo -e "alias bond0 bonding\noptions bond0 mode=1 primary=eth1 use-carrier=0" >>/etc/modprobe.conf

sysctl -p

step2) change settings for eth0,eth1 and bond0

echo -e "DEVICE=eth0\nMASTER=bond0\nSLAVE=yes"> /etc/sysconfig/network-scripts/ifcfg-eth0

echo -e "DEVICE=eth1\nMASTER=bond0\nSLAVE=yes"> /etc/sysconfig/network-scripts/ifcfg-eth0

echo -e "DEVICE=bond0\nIPADDR=192.168.0.4\nNETMASK=255.255.255.0\nONBOOT=yes">/etc/sysconfig/network-scripts/ifcfg-bond0

Step 3) Restart the network

/etc/init.d/network restart

Note :-

1)     You could check status of your virtual card (bond0) by executing below command

cat /proc/net/bonding/bond0

2)      Depending on your use/requirements  we could use several parameters (like mode,milmon,use-carrier) in modeprobe.conf.

I hope this could be easily googled by youJ