Netgear GS728TP User Manual download pdf (Page 339)

100

101

Configuring Quality of Service

339

ProSafe M5300 Switch

Differentiated Services

The QoS feature contains Differentiated Services (DiffServ) support that allows traffic to be

classified into streams and given certain QoS treatment in accordance with defined per-hop

behaviors.

Standard IP-based networks are designed to provide “best effort” data delivery service. “Best

effort” service implies that the network delivers the data in a timely fashion, although there is

no guarantee that it will. During times of congestion, packets may be delayed, sent

sporadically, or dropped. For typical Internet applications, such as e-mail and file transfer, a

slight degradation in service is acceptable and in many cases unnoticeable. Conversely, any

degradation of service has undesirable effects on applications with strict timing requirements,

such as voice or multimedia.

Defining DiffServ

To use DiffServ for QoS, the Web pages accessible from the Differentiated Services menu

page must first be used to define the following categories and their criteria:

1. Class - Create classes and define class criteria.

2. Policy - Create policies, associate classes with policies, and define policy statements.

3. Service - Add a policy to an inbound interface

Packets are classified and processed based on defined criteria. The classification criteria is

defined by a class. The processing is defined by a policy's attributes. Policy attributes may be

defined on a per-class instance basis, and it is these attributes that are applied when a match

occurs. A policy can contain multiples classes. When the policy is active, the actions taken

depend on which class matches the packet.

Packet processing begins by testing the class match criteria for a packet. A policy is applied

to a packet when a class match within that policy is found.

The Differentiated Services menu page contains links to the various Diffserv configuration

and display features.

From the DiffServ link under the QoS tab, you can access the following pages:

• DiffServ Wizard on page 340

• Basic on page 341

• Advanced on page 343

1 2 ... 334 335 336 337 338 339 340 341 342 343 344 ... 529 530

Comments to this Manuals

No comments

Netgear GS728TP User Manual Page 339

Comments to this Manuals

Related products and manuals for Software Netgear GS728TP