
117374-B Rev. 00
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Contents
About This Guide
Before You Begin ............................................................................................................. xx
Conventions ..................................................................................................................... xx
Acronyms .........................................................................................................................xxi
Bay Networks Technical Publications ............................................................................xxiv
Bay Networks Customer Service ...................................................................................xxiv
How to Get Help .............................................................................................................xxv
Bay Networks Educational Services ...............................................................................xxv
Chapter 1
Understanding ATM, MPOA, and ATM Router Redundancy Concepts
ATM General Information ................................................................................................1-2
ATM Cells .................................................................................................................1-2
Cell Header ........................................................................................................1-3
Cell Information Field .........................................................................................1-4
Data Transmission ....................................................................................................1-4
Permanent and Switched Virtual Connections .........................................................1-6
ATM Layers ..............................................................................................................1-6
Physical Layer ....................................................................................................1-7
ATM Layer ..........................................................................................................1-8
ATM Adaptation Layer ........................................................................................1-8
Service Records and Virtual Circuits .......................................................................1-9
Supported Protocols ........................................................................................1-10
Things to Remember .......................................................................................1-11
Rules for Editing Protocols ..............................................................................1-12
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