H3C WX Series Configuration Guide

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IntServ model
The integrated service (IntServ) model is a multiple-service model that can
accommodate diverse QoS requirements. It provides the most granularly differentiated
QoS by identifying and guaranteeing definite QoS for each data flow.
In the IntServ model, an application must request service from the network before it
sends data. IntServ signals the service request with the Resource Reservation Protocol
(RSVP). All nodes that receive the request reserve resources as requested and maintain
state information for the application flow.
The IntServ model demands high storage and processing capabilities, because it
requires that all nodes along the transmission path maintain resource state information
for each flow. The model is suitable for small-sized or edge networks, but not large-sized
networks, for example, the core layer of the Internet, where billions of flows are present.
DiffServ model
The differentiated service (DiffServ) model is a multiple-service model that can satisfy
diverse QoS requirements. It is easy to implement and extend. Unlike IntServ, DiffServ
does not require an application to signal the network to reserve resources before
sending data.
All QoS techniques in this document are based on the DiffServ model.
QoS techniques
The QoS techniques fall into traffic classification, traffic policing, traffic shaping, line rate,
congestion management, and congestion avoidance. The following section briefly
introduces these QoS techniques.

H3C WX Series Specifications

General

Brand	H3C
Model	WX Series
Category	IP Access Controllers
Language	English