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C
HAPTER
Persistence
The Web OS persistence feature ensures that all connections from a specific client session
reach the same real server, even when Server Load Balancing (SLB) is used.
The following topics are addressed in this chapter:
n
"Overview of Persistence" on page
the different types of persistence methods implemented in Web OS.
n
"Cookie-Based Persistence" on page
anism for inserting a unique key for each client of a virtual server. This feature is only
used in nonsecure socket layer (non-SSL) connections. This section discusses in detail
how persistence is maintained between a client and a real server using different types of
cookies.
n
"Server-Side Multi-Response Cookie Search" on page
configure the switch to look through multiple HTTP responses from the server to achieve
cookie-based persistence.
n
"SSL Session ID-Based Persistence" on page
tion server and client communicate over an encrypted HTTP session.
212777-A, February 2002
16
422. This section gives an overview of persistence and
424. The use of cookie persistence provides a mech-
436. This section explains how to
437. This section explains how an applica-
421
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