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Px Series Application Switch Installation and Configuration Guide 1-1
1
Server Load Balancing Concepts
The Px series application switch marks the next step in server load balancing. Using a
revolutionary hardware design, the Px series application switch is designed to help
website administrators achieve levels of availability and scalability never before
possible.
This chapter contains the following sections:
• Purpose of Server Load Balancing on page 1-1
• Load Balancing Modes on page 1-3
• Port Rewrite on page 1-6
• Getting Started on Load Balancing Configuration on page 1-6
Purpose of Server Load Balancing
An application switch increases website availability by allowing for web servers to fail
(or be shut down for maintenance) without a website outage. It also improves the
response times of the website and increases the traffic-handling capacity of the website
by allowing multiple servers to be used together as a single site.