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ForeRunner
ATM Switch Network Configuration Manual
Configuring an Emulated LAN
3.4.2 Distributed LAN Emulation Model
To address the limitations of the single server model, DLE distributes the LANE services load
among a mesh of LES/BUS DLE peer servers, as shown in Figure 3.6.
Figure 3.6 -
Distributed LAN Emulation Model
Each DLE peer server actually maintains two sets of connections: one is a point-to-multipoint
connection to each of its peers for broadcasting multicast data and flooding control information,
and the other includes individual point-to-point connections to each peer for directed control
traffic.
Each DLE peer server that supports the ELAN is responsible for registering and giving reports
about the LECs that are attached to it directly. Each DLE peer server propagates this informa-
tion to both its locally attached LECs and its peers.
NOTE
Each device running a DLE peer server must use
ForeThought 5.0 or greater; however, the DLE
peer servers support clients and attached
switches using ForeThought 4.0 and 4.1, and
third-party devices that are ATM Forum LANE
1.0 compliant.
Eng LEC 5
Eng LEC 7
Eng LEC 8
Eng LEC 9
LES/BUS 1
Eng
LES/BUS 2
Eng
LES/BUS 3
Eng
Eng LEC 1
Eng LEC 2
Eng LEC 3
Eng LEC 6
Eng LEC 4
Summary of Contents for forerunner series
Page 6: ......
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 ...