10.4. Server Load Balancing
10.4. Server Load Balancing
10.4.1. Overview
The Server Load Balancing (SLB) feature in NetDefendOS is a powerful tool that can improve the
following aspects of network applications:
•
Performance
•
Scalability
•
Reliability
•
Ease of administration
The primary benefit of SLB is to allow the network service load to be shared across multiple
servers. This can improve not just the performance of applications but also scalability by allowing a
cluster of multiple servers (sometimes referred to as a server farm) to handle many more requests
than a single server. The illustration below shows a typical SLB scenario, with Internet access to
internal server applications being managed by a NetDefend Firewall.
Figure 10.8. A Server Load Balancing Configuration
Note: SLB is not available on all D-Link NetDefend models
The SLB feature is only available on the D-Link NetDefend DFL-800, 860, 1600, 1660,
2500, 2560 and 2560G.
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Chapter 10. Traffic Management