ATM Introduction

ATM fundamentals. Current Network requirements - CBR, VBR, UBR. Current technology. Network management costs. A new kind of transmission needed. Connection-orientation transmission. ATM history and standards. Packet Vs Cell switching. ATM network topology. Cell multiplexing.

ATM Standards

The ATM standards, The ATM Forum responsibilities, The history of ATM, The major ATM standards, The ATM standard model, The ATM Protocol Layers.

ATM Physical Layer

The physical layer of ATM, ATM reference points. SDH and SONET. Uses of UNI 3.0 and 3.1. Types of media. UTP. Coax and Fibre application. ATM Layer: The function of the cell headers, Flow Control, The procedure for virtual paths and channels, Payload identification, Cell loss priority, The procedure for header error checking

The ATM Adaption layer and Signalling

The Adaptation layers – AAL. The service classes. AALs 1 through 5, Signalling and control. Set up and clearing messages. Information elements. Connection types ATM addressing. Public and private addresses. Address registration using ILMI. Multipoint signalling

Traffic Control and Policing

Traffic control and policing. The traffic contract. Quality of service issues. Bandwidth and the traffic contract. Policing the contract using GCRA. Connection Admission Control Traffic shaping. Congestion control

The User Network Interface

The UNI and NNI. Public UNI. The 3 layers of ATM. The cell header. Why are ATM cells so small? Using virtual circuits. Using virtual paths. PVCs and SVCs, UNI 4.0. Additional facilities. Group addressing. Multicast facilities, ABR.