[AIX HP-UX Linux Solaris Windows]

Aliasing the network interface card or loopback device

About this task

To alias the loopback device on servers that are being load-balanced, you must use the operating system's adapter configure commands. For the load-balanced server machines to work, you must set, or preferably alias, the loopback device, which is often called lo0, to the cluster address. By setting or aliasing the loopback device to the cluster address, the load balanced server machines will accept a packet that was addressed to the cluster address.

If you have an operating system that supports network interface aliasing (such as AIX, HP-UX, Linux, Solaris, or Windows systems), you should alias the loopback device to the cluster address. The benefit of using an operating system that supports aliases is that you have the ability to configure the load-balanced server machines to serve multiple cluster addresses.
[Linux] Note: See Configuring loopbacks with alternative methods. If you have a server with an operating system that does not support aliases you must set the loopback device to the cluster address.

Procedure




Related concepts
Configuring loopbacks with alternative methods
Related information
Configuring the Load Balancer machine
Configuring the server machines
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Last updatedLast updated: Jun 20, 2011 4:04:37 PM EDT
File name: tcfg_aliasloopback.html