Installation guide

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Device Manager Guide, Cisco ACE 4700 Series Application Control Engine Appliance
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Chapter 6 Configuring Real Servers and Server Farms
Configuring Server Farms
Configuring the Predictor Method for Server Farms
After adding a server farm, (Configuring Server Farms, page 6-18), you can associate real servers with
it and configure the predictor method and retcode maps. The configuration screens for these attributes
appear beneath the Server Farms table or after you have successfully added a new server farm.
Note If you do not see these tabs beneath the Server Farms table, click the Switch between Configure and
Browse Modes button.
Use this procedure to configure the predictor method for a server farm. The predictor method specifies
how the ACE appliance is to select a server in the server farm when it receives a client request for a
service.
Note You can configure only one predictor method per server farm.
Assumptions
• A server farm has been added to the ACE Appliance Device Manager. (See Configuring Server
Farms, page 6-18.)
• At least one real server exists.
Procedure
Step 1 Choose Config > Virtual Contexts > context > Load Balancing > Server Farms. The Server Farms
table appears.
Step 2 Select the server farm you want to configure the predictor method for, and then select the Predictor tab.
The Predictor configuration screen appears.
Step 3 In the Type field, select the method that the ACE appliance is to use to select a server in this server farm
when it receives a client request. Table 6-7 lists the available options and describes them.
Step 4 Enter the required information for the selected predictor method. Round Robin is the default predictor
method. See Table 6-7.