Inside Macintosh: Networking /

Chapter 7 - Datagram Delivery Protocol (DDP)

Using DDP

This section describes how to send data packets to a socket and how to receive them from another socket over an AppleTalk network or internet using DDP. It also describes how to use the AEP Echoer to measure packet-delivery performance and to determine if a node is on the network.

Note

You do not need to use the AEP Echoer to send and receive data using DDP. This chapter describes the AEP Echoer because you must use
the programming interface to DDP in order to use the AEP Echoer. Applications that use higher-level AppleTalk protocols, such as ATP
or ADSP, can also use the AEP Echoer to measure packet-delivery performance.

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Subtopics

Sending and Receiving Data: An Overview

Creating a DDP Write-Data Structure

Using Registers and Packet Headers

A Sample Socket Listener

Measuring Packet-Delivery Performance