Chapter 10:

Generic Quality of Service (GQOS)

C & Winsock: The Kick Start programming tutorials

C & Linux Socket

Program Example Index

C#, VB .NET & C++/CLI Network Programming

Windows Device Driver Development & Program Examples

ReactOS - Windows OS Binary Compatible Open Source Project - C & C++

COMPLETED PROJECT DOWNLOAD

What do we have in this chapter?

1. Background

RSVP - Resource Reservation Protocol

Network Components

802.1p

IP Precedence

Layer 2 Signaling

SMB - Server Message Block

Application Components

GEneric Quality of Service (GQOS) Service Provider

Traffic Control (TC) Module

GPC - Generic Packet Classifier

Packet Scheduler

Packet Shaper

TC API

Policy Components

ACS - Access Control Services

LPM - Local Policy Module

Policy Element

2. QOS and Winsock

QOS - Quality of Service Structures

QOS

FLOWSPEC Structure

TokenRate

TokenBucketSize

PeakBandwidth

Latency

DelayVariation

ServiceType

MaxSduSize

MinimumPolicedSize

QOS-Invoking Functions

WSAConnect() function

WSAAccept()

WSAJoinLeaf() function

WSAIoctl()

Terminating QOS

Provider-Specific Objects

QOS Shape Discard Mode

QOS Destination Address

RSVP Status Info

RSVP Reserve Info

RSVP_DEFAULT_STYLE

RSVP_FIXED_FILTER_STYLE

RSVP_WILDCARD_STYLE

RSVP_SHARED_EXPLICIT_STYLE

RSVP Policy Info

 

 

3. Programming QOS

RSVP and Socket Types

Unicast UDP

Unicast TCP

Multicast

QOS Notifications

Registering for FD_QOS Notifications

RSVP Notifications

WSA_QOS_RECEIVERS and WSA_QOS_NO_RECEIVERS

WSA_QOS_SENDERS and WSA_QOS_NO_SENDERS

WSA_QOS_REQUEST_CONFIRMED

4. QOS Templates

5. Program Examples

6. TCP - Transmission Control Protocol

UDP - User Datagram Protocol

ATM - Asynchronous Transfer Mode and QOS

Summary

QOS offers powerful capabilities to applications that require a guaranteed level of network service. Setting up a QOS connection is rather involved, but don't let this scare you. The most important concept is learning how and when RSVP messages are generated so that you can code your application accordingly. Although the future of GQOS on Windows platforms is uncertain, there is still TC functionality in the latest Windows XP platforms.

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