An update on aliasing the loopback adapter on AIX® 5.x operating systems for Load Balancer
 Technote (troubleshooting)
 
Problem(Abstract)
Aliasing the loopback adapter on AIX 5.x systems requires a different
netmask than used with previous versions of AIX.
 
Resolving the problem
With AIX 5.x, alias the loopback adapter (lo0) with a netmask of 255.255.255.255 to avoid adding a route that is not valid. For example:
ifconfig lo0 alias cluster_address netmask 255.255.255.255

If a route is added for network traffic (for example, 9.24.33/24) that directs the traffic through the loopback adapter (lo0), delete it using the following command:

route delete -net network_destination cluster_addr
Where network_destination is 9.24.33/24 in our example.
Using the -net parameter avoids having extra routes deleted.

NOTE: With AIX 4.3 and previous versions, when aliasing the loopback adapter, use the netmask of the primary adapter.
 
 
Cross Reference information
Segment Product Component Platform Version Edition
Application Servers WebSphere Edge Server Load Balancer AIX Edge Server 2.0 GA, Edge Server 2.0 NLV, Edge Server 2.0.x
Application Servers Runtimes for Java Technology Java SDK
 
Historical Number
85707
 
 


Document Information


Product categories: Software > Application Servers > Distributed Application & Web Servers > WebSphere Application Server > Edge Component
Operating system(s): AIX
Software version: 5.0
Software edition:
Reference #: 1162895
IBM Group: Software Group
Modified date: Mar 10, 2004