ForeRunner
ATM Switch Network Configuration Manual
4 - 1
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CHAPTER 4
MPOA
This chapter provides an overview of LAN Emulation (LANE) and Multi-Protocol Over ATM
(MPOA) as implemented in FORE Systems’ ForeThought software.
4.1 Overview of LANE/MPOA
FORE System’s ForeThought software is compliant with the ATM Forum’s LAN Emulation Over
ATM Version 1.0 specification. LANE allows higher level protocols and LAN applications to
interoperate, without modifications, with an ATM network.
The LANE components, running on the ATM network, interact to emulate an Ethernet or
Token Ring LAN. This emulated Ethernet or Token Ring LAN is called an emulated LAN
(ELAN). The ELAN components resolve MAC addresses to ATM addresses, replace the con-
nectionless operation of legacy LANs with point-to-point connections, and provide broadcast
and multicast services. The ELAN consists of a LANE/MPOA Client (LEC/MPC) running on
each host in the ELAN, and the following LANE Services:
•
the LAN Emulation Server (LES)
•
the Broadcast and Unknown Server (BUS)
•
the LAN Emulation Configuration Server (LECS)
The LANE services may operate on a FORE Systems ATM switch, PowerHub 7000, or Solaris
workstation. ForeThought also provides support for Distributed LAN Emulation (DLE) which
provides load-sharing and improved fault-tolerance within an ELAN.
Summary of Contents for forerunner series
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Page 16: ...TOC 10 ForeRunner ATM Switch Network Configuration Manual Table of Contents ...
Page 20: ...LOF 4 ForeRunner ATM Switch Network Configuration Manual List of Figures ...
Page 22: ...LOT 2 ForeRunner ATM Switch Network Configuration Manual List of Tables ...
Page 30: ...viii ForeRunner ATM Switch Network Configuration Manual Preface ...
Page 144: ...3 58 ForeRunner ATM Switch Network Configuration Manual Configuring an Emulated LAN ...
Page 180: ...6 12 ForeRunner ATM Switch Network Configuration Manual ATM Forum PNNI ...
Page 220: ...9 6 ForeRunner ATM Switch Network Configuration Manual Configuring Timing ...
Page 300: ...D 24 ForeRunner ATM Switch Network Configuration Manual Configuring FramePlus Modules ...
Page 308: ...Acronyms 8 ForeRunner ATM Switch Network Configuration Manual Acronyms ...
Page 346: ...Glossary 38 ForeRunner ATM Switch Network Configuration Manual Glossary ...
Page 352: ...Index 6 ForeRunner ATM Switch Network Configuration Manual Index ...