Network Load Balancing

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Servicing a Web Site with Active Server Pages

Web sites that use Active Server Pages (ASP) can maintain session state across client connections. Network Load Balancing helps preserve client access to session information by ensuring that all TCP/IP connections from a single client are directed to the same cluster host. To do so, set Affinity to either Single or Class C.

There are, however, situations in which a client can connect with one cluster host, and then have subsequent connections load-balanced to different hosts. Such situations include the following:

If either of the preceding situations arises, ASP applications must provide a means to retrieve and manage session state even if a client connects to multiple cluster hosts as part of a single session. The following are two strategies for addressing this issue:

For more information about port-rule settings, see "IIS Server (Web Farm)," earlier in this chapter.

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