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Copyright © 2000 - 2005 KEMP Technologies, Inc. All Rights Reserved.
TABLE OF CONTENTS
SECTION I. APPLICATION GUIDE ....................................................................................................8
A. Preface........................................................................................................................................8
1. Foreword.................................................................................................................................8
2. The LoadMaster Documentation ..................................................................................................8
3. Typographical Conventions.........................................................................................................8
4. Glossary and Abbreviations ........................................................................................................8
B. Overview of the LoadMaster........................................................................................................9
1. Load Balancing and it’s Benefits ..................................................................................................9
2. Considerations in Getting Started..............................................................................................10
3. A Simple Balancer Configuration................................................................................................11
4. LoadMaster Load Balancer Features...........................................................................................12
C. LoadMaster Network Topologies................................................................................................14
1. One-Armed Balancer ...............................................................................................................14
2. Two-Armed and Multi-Armed Balancer .......................................................................................14
3. Direct Server Return – DSR example ..........................................................................................15
D. Miscellaneous Networking Issues ..............................................................................................16
1. S-NAT ...................................................................................................................................16
2. Default Gateway and Routes.....................................................................................................17
E. Single/Dual Unit Configurations ................................................................................................18
1. Single Unit Configuration..........................................................................................................18
2. High Availability (HA) Configuration...........................................................................................18
F. Balancing Methods......................................................................................................................19
1. Round Robin ..........................................................................................................................19
2. Weighted Round Robin.............................................................................................................20
3. Least Connection ....................................................................................................................20
4. Weighted Least Connection.......................................................................................................20
5. Agent Based Adaptive Balancing................................................................................................20
G. Layer 4 Persistency ....................................................................................................................21
1. Source IP Address Based Persistency.........................................................................................21