Overview: Load Balancer
Visit the
Edge Component Information Center
for the documentation library.
For the most current information on software requirements (operating systems and JDK)
for Edge Components, access the
system requirements
Web page for WebSphere Application Server.
Self help information for Edge Components is available on the Technote database
from the
WebSphere Application Server support Web site.
Related information for WebSphere Application Server products is available from the
WebSphere Application Server product library.
For information on how to perform Load Balancer tasks, click How do I?
in the navigation area to the left. To find information by keyword, select the Index
tab.
Load Balancer is an administration and configuration tool that
provides dynamic load balancing, scalability, and high availability for
servers on the Internet or on your intranet.
The five major components of Load Balancer are:
- Dispatcher - provides load balancing for TCP and UDP applications.
Dispatcher balances the load on servers within a local area
network or wide area network using several weights and measurements
that are dynamically set.
Content-based routing (without Caching Proxy) is also available on the Dispatcher
component to load balance incoming client requests, based on Web page content using specified rule
types, to HTTP servers.
- Content Based Routing (CBR) - works with Caching Proxy to load balance incoming
client requests, based on Web page content using specified rule types, to HTTP or HTTPS servers.
Note: The Content Based
Routing (CBR) component is
available on all supported platforms except those running a 64-bit JVM on Itanium 2, AMD Opteron, or PowerPC 64-bit processors.
- Site Selector - balances the load on servers within a wide area
network (WAN) using measurements and weights that are gathered from the Metric Server component
running on those servers.
- Cisco CSS Controller - uses Load Balancer technology to provide
real-time load balancing information to the Cisco Content Services Switch.
- Nortel Alteon Controller - uses Load Balancer technology to provide
server weights dynamically to the Nortel Alteon family of Web switches.
|