Configuring the WSM using Device Manager

Configuring cookie-based session persistence

To configure the WSM for cookie-based persistence:

1. Define an IP interface on the WSM. See Defining an IP interface on the WSM.
2. Configure each real server with its IP address, name, weight, and so forth. See Configuring each real server.
3. Assign servers to real server groups. See Configuring a real server group.
• If embedding an IP address in the cookie, select the roundrobin or leastconns load-balancing metric.
• If not embedding an IP address in the cookie, select hash as the load-balancing metric in conjunction with a cookie assignment server.
  
  

  Note: While you may experience traffic concentration using the hash metric with a cookie assignment server, using a hash metric without a cookie assignment server will cause traffic concentration on your real servers.

  
  
4. Define the virtual servers. See Configuring a virtual server.
• Set the following parameters on the virtual server:

­	Cookie Name

­	Cookie Offset

­	Cookie Length

­	Cookie Search

­	Expire Cookie (for Insert mode only)

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Cookie Search Response Count (for passive mode only) Note: In complex server configurations, the persistence cookie might not be sent in the first server response. If this happens, you can configure the WSM to look through multiple HTTP responses from the server. The WSM looks for the persistence cookie in the specified number of server responses (each of them can be multi-frame).

5. Define the virtual server services. See Configuring services for a virtual server.
• Set the following parameters on the virtual server service:

­	Persistent binding field=Cookie

­	Cookie Persistence Mode field=Rewrite, Passive, or Insert

6. Enable client or server processing on the ports. See Configuring ports for server load balancing.
7. Do one of the following:
• Enable direct access mode (DAM) on the WSM. See Configuring direct access mode.
• Configure client ports with proxy IP addresses. See Configuring proxy IP addresses.
8. Enable server load balancing for the WSM. See Enabling or disabling server load balancing.

Cookie-based session persistence is configured for the WSM.

See also:

• Defining cookie persistence modes
• About load balancing metrics
• About session persistence
• About cookie-based persistence
• Handling client browsers that do not accept cookies
• Examples of cookie values
• SSL session ID-based persistence
• Configuring SSL session ID-based persistence