This topic highlights the components of Load Balancer that
are available for use.
Load Balancer consists of the following three components that you
can use separately or together to provide superior load-balancing
results:
- You can use the Dispatcher component by itself to balance the
load on servers within a local area network or wide area network using
a number of weights and measurements that are dynamically set by Dispatcher.
This component provides load balancing at a level of specific services,
such as HTTP, FTP, SSL, NNTP, IMAP, POP3, SMTP, SIP, and Telnet. It
does not use a domain name server to map domain names to IP addresses.
- For both HTTP and HTTPS (SSL) protocol, you can use the Content
Based Routing (CBR) component to load balance based on the content
of the client request. A client sends a request to Caching Proxy,
and Caching Proxy sends the request to the appropriate server. The
chosen server is the result of matching the URL to a specified rule.
- You can use the Site Selector component to balance the load on
servers within a local or wide area network using a DNS round-robin
approach or a more advanced user-specified approach. Site Selector
works in conjunction with a name server to map DNS names to IP addresses.
For more information on the Dispatcher, CBR, and Site Selector,
components, see