In This Chapter - Alcatel-Lucent OmniSwitch 6850-48 Network Configuration Manual

44 Configuring Server Load
Alcatel-Lucent's Server Load Balancing (SLB) software provides a method to logically manage a group of
physical servers sharing the same content (known as a server farm) as one large virtual server (known as
an SLB cluster). SLB clusters are identified and accessed using either a Virtual IP (VIP) address or a QoS
policy condition. Traffic is always routed to VIP clusters and either bridged or routed to policy condition
clusters. The OmniSwitch operates at wire speed to process client requests and then forward them to the
physical servers within the cluster.
Using SLB clusters can provide cost savings (costly hardware upgrades can be delayed or avoided), scal-
ability (as the demands on your server farm grow you can add additional physical servers), reliability (if
one physical server goes down the remaining servers can handle the remaining workload), and flexibility
(you can tailor workload requirements individually to servers within a cluster).

In This Chapter

This chapter describes the basic components of Server Load Balancing and how to configure them through
the Command Line Interface (CLI). CLI commands are used in the configuration examples; for more
details about the syntax of commands, see the OmniSwitch CLI Reference Guide.
Configuration procedures described in this chapter include:
•
Steps to configure physical servers on
•
Procedures to configure SLB on a switch on
•
Procedures to configure logical SLB clusters on
•
Procedures to configure physical servers in SLB clusters on
•
Procedures to configure SLB probes on
•
Procedures for troubleshooting and maintenance on
Note. You can also configure and monitor Server Load Balancing with WebView, Alcatel-Lucent's
embedded web-based device management application. WebView is an interactive and easy-to-use GUI
that can be launched from OmniVista or a web browser. Please refer to WebView's online documentation
for more information on configuring and monitoring Server Load Balancing with WebView.
OmniSwitch AOS Release 6 Network Configuration Guide
page 44-11.
page 44-24.
page 44-25.
page
page 44-32.
page 44-30
September 2009
Balancing
44-27.
and page 44-36.
page 44-1