Prestige 2602H/HW Series User’s Guide

CHAPTER 21

Media Bandwidth Management

Advanced Setup

This chapter describes the functions and advanced configuration of bandwidth management.

21.1 Bandwidth Management Advanced Setup Overview

Bandwidth management allows you to allocate an interface’s outgoing capacity to specific types of traffic. It can also help you make sure that the Prestige forwards certain types of traffic (especially real-time applications) with minimum delay. With the use of real-time applications such as Voice-over-IP (VoIP) increasing, the requirement for bandwidth allocation is also increasing.

Bandwidth management addresses questions such as:

•Who gets how much access to specific applications?

•What priority level should you give to each type of traffic?

•Which traffic must have guaranteed delivery?

•How much bandwidth should be allotted to guarantee delivery?

Bandwidth management also allows you to configure the allowed output for an interface to match what the network can handle. This helps reduce delays and dropped packets at the next routing device. For example, you can set the WAN interface speed to 1000kbps if the ADSL connection has an upstream speed of 1000kbps. All configuration screens display measurements in kbps (kilobits per second), but this User’s Guide also uses Mbps (megabits per second) for brevity’s sake.

You can use the wizard setup screens to configure basic bandwidth management. Refer to Section 3.2.4 on page 78 for more information.

21.2 Bandwidth Classes and Filters

Use bandwidth classes and child-classes to allocate specific amounts of bandwidth capacity (bandwidth budgets). Configure a bandwidth filter to define a bandwidth class (or child-class) based on a specific application and/or subnet. Use the Class Configuration screen (see Section 21.9 on page 273) to set up a bandwidth class’s name, bandwidth allotment, and bandwidth filter. You can configure up to one bandwidth filter per bandwidth class. You can also configure bandwidth classes without bandwidth filters. However, it is recommended that

Chapter 21 Media Bandwidth Management Advanced Setup

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