Transnet D: Principles of ATM

Wide Area Networks (WANs) provide secure and reliable voice, video and data communications for businesses. The TransNet suite of five courses cover the facilities provided by modern WANs and the technologies they employ.

Introduction to Wide Area Networks
Principles of ATM
IP networks and the Internet
IP routing
Advanced IP networks

Principles of ATM course

The Asynchronous Transfer Mode (ATM) was originally introduced as a way of offering WAN connections to businesses. ATM now also forms an integral part of many modern Digital Subscriber Line (DSL) based broadband services. These services provide high speed access to the Internet. This course explains the principles of ATM and explains how a defined quality of service can be offered.

Prerequisites:

An understanding of the basic principles of packet switching. It is recommended that the e-learning course TAA - "Principles of WANs" is studied before attempting this Principles of ATM course.

Summary of topics covered:

ATM cell structure and content.

Concepts of virtual paths and channels; relationship to SDH transmission paths.

Overview of ATM protocol layers inc. AAL1 and AAL5.

Concept and role of traffic contracts and quality of service (QoS) classes.

Definitions of QofS parameters inc. PCR, SCR and CDV.

Traffic control inc. traffic shaping and policing; leaky bucket algorithm.

Concepts of UNI and NNI interfaces and the role of UPC and CAC functions.

Avoiding congestion with rate based and credit based flow control.

Number of modules: 8
Approximate study time: 7 hours

Level:

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