Slb Features - D-Link DFL-1600 User Manual

262 Chapter 24. Server Load Balancing (SLB)
Figure 24.1: A SLB Logical View.
Server load balancer
An appliance to perform the functions of SLB, listening to the coming
requests, deciding the traffic distribution mode and algorithm, rerouting the
traffic to a certain sever within the server farm, and monitoring the
availability of the servers.
D-Link firewalls are capable server load balancers, which can be configured
to perform load distribution and monitoring functions.
24.1.2

SLB Features

The key features that SLB can provide are summarized as follows:
Load distribution
The Load distribution feature is responsible for distributing traffic to
destination servers according to some predefined policy, i.e. distribution
mode & algorithm. It determines where the traffic goes to and how is the
traffic load shared among available servers.
Server Monitoring
Server Monitoring is used for performing various checks to evaluate the
"health" of servers. It works at different layers of the OSI module, real-time
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