Using Traffic Shaper; Overview - D-Link NetDefend DFL-CP310 User Manual

Chapter 6
This chapter describes how to use Traffic Shaper to control the flow of
communication to and from your network
This chapte ncludes the r i
Overview ..................................................................................................151
Setting Up Tr affic Shaper.........................................................................153
Predefined QoS Classes............................................................................154
Adding and Ed it ing Classes......................................................................155
Deleting C lasses .......................
Restoring T raffic Shape

Overview

Traffic Shaper is a
bandwidth policies
that important traffic takes precedence over less important traffic, so that your
business can co ntinue to function with minimum disruption, despite netwo
congestion.
Traffic Shaper u ses Stateful Inspection technology to access an
derived from all communication layers. This data is used to classify traffic in
Quality of Service (QoS) classes. Traffic Shaper divides available bandwidth
among the classes according to weight. For example, suppose Web traffic is
deemed three times as important as FTP traffic, and these services are assigned
weights of 30 and 10 respectively. If the lines are congested, Traffic Shaper will
maintain the ratio of bandwidth allocated to Web traffic and FTP traffic at 3:1.
If a specific class is not using all of its bandwidth, the leftover bandwidth is divided
among the remaining classes, in accordance with their relative weights. In the
example above, if only one Web and one FTP connection are active and they are
competing, the Web connection will receive 75% (30/40) of the leftover
Chapter 6: Using Traffic Shaper
following topics:
................................................................159
r Defaults ............................................................160
bandwidth management solution that allows you to se
to control the flow of communication. Traffic Shaper
Using Traffic Shap
.

Overview

er
t
ensures
rk
d analyze data
151