Add and bind linux Nic aliases RHEL6

Nic alias Configuration:

 

This is similar to changing the ip address of the NIC temporarily in ifconfig. It's all temporary. You just need to restart your computer.

With a permanent ip alias:

Cp ifcfg-eth0 ifcfg-eth0: 0

 

Vim ifcfg-eth0: 0

 

This can also be done, right?

Restart the network.

Nic binding: the VM has two NICs, one eth0 and one eth1.

Linux allows you to bind multiple physical NICs to a logical Nic and bind two or more network interfaces as one network interface to increase bandwidth and/or provide redundancy.

Select Linux Ethernet binding mode

Mode 0 (balanced round robin)-Round Robin policy, which is used by all interfaces. Use the round robin method to transmit packets in all Slave; any

Slave can receive.

Mode 1 (active backup)-fault tolerance. Only one Slave interface can be used at a time, but if this interface fails, the other Slave

Will replace it.

Mode 3 (broadcast)-fault tolerance. All packets are broadcast through all Slave interfaces.

Other binding modes are described in the kernel documentation networking/bonding.txt.

Nic configuration file:

Which of the following network interfaces and logical network interfaces are configured?

Logical NIC:

 

 

Configure the system to load the bonding module:

 

Attach the slave interface to bond0

/Etc/rc. d/rc. local

Ifenslave bond0 eth0 eth1

Reboot system

View bonding status:

Cat/proc/net/bonding/bond0

 

If ifdown eth0 is used, eth1 is immediately topped when eth0 is bad.

 

Kernel network parameter adjustment:

Cd/proc/sys/net/ipv4 prevent others from pinging

Allow other hosts to ping