L oad Balancer Co nfigurations
Single Load Balancer Configuration
The most common load balancer configuration utilizes a single load balancer that gates access to
a cluster of engine tier servers, as shown in Figure 2-4.
Figure 2-4 SIngle Load Balancer Configuration
To configure WebLogic SIP Server for use with a single load balancer as in Figure 2-4, configure
one or more network channels for each server, and configure the public address of each channel
with the Virtual IP address of the load balancer. In this configuration, WebLogic SIP Server
embeds the load balancer IP address in SIP message system headers to ensure that clients can
reach the cluster for subsequent replies. “Managing WebLogic SIP Server Network Resources”
on page 1-1 presents detailed steps for configuring network channels with load balancer
addresses.
Note: Although some load balancing switches can automatically re-route all SIP messages in a
given call to the same engine tier server, this functionality is not required with WebLogic
SIP Server installations. See Alternate Configurations in Configuring WebLogic SIP
Server for more information.
Configuring Network Resources
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