3Com 3500 manual Rsvp

22	QUALITY OF SERVICE (QOS)
	AND RSVP

Quality of Service (QoS) and the Resource Reservation Protocol (RSVP) are advanced features that provide policy-based services. Policy-based services establish various grades of network services to accommodate the needs of different types of traffic (for example, multimedia, video, and file backups). QoS software relies on RSVP to provide admission control.

This chapter provides guidelines and other key information about how to configure QoS and RSVP in your system.

QoS and RSVP features include classifiers, controls, and RSVP parameters.

Configure these features in the following order:

1You first enter the command qos

2to define how the system groups packets so that it can schedule them with the appropriate service level.

3You then enter the command qos control define to assign rate limits and priorities to the packets that are associated with one or more of your classifiers. A classifier has no effect until you associate it with a control.

The system provides predefined classifiers and controls that are suitable for many configurations, or you can define your own classifiers, apply controls to the classifiers, and then decide whether to use RSVP. For more information about QoS and RSVP, see the Implementation Guide for your system.

For the CoreBuilder® 9000, the commands in this chapter apply only to Layer 3 switching modules.