[AIX HP-UX Linux Solaris Windows]

Configuring loopbacks with alternative methods

About this task

Some versions of Linux systems issue ARP responses for any IP address configured on the machine on any interface present on the machine. It may also choose an ARP source IP address for ARP who-has queries based on all IP addresses present on the machine, regardless of the interfaces on which those addresses are configured. This causes all cluster traffic to be directed to a single server in an indeterminate manner.

With Dispatcher’s forwarding method, a mechanism must be employed to ensure that cluster-addressed traffic can be accepted by the stacks of the back-end servers.

In most cases, you must alias the cluster address on the loopback; therefore, back-end servers must have the cluster aliased on the loopback. To ensure that Linux systems do not advertise addresses on the loopback, you can use any of these four solutions to make Linux systems compatible.

Procedure




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Last updatedLast updated: Jun 20, 2011 4:04:37 PM EDT
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