Coyote Point Systems E350GX, Installation And Administration Manual

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Equalizer Installation and Administration Guide 3
Preface 15
In This Guide .................................................................................................................15
Typographical Conventions ...........................................................................................16
Where to Go for More Help ...........................................................................................17
Equalizer Overview 19
Introducing Equalizer .....................................................................................................20
Intelligent Load Balancing ......................................................................................20
Load Balancing Configuration ................................................................................21
Real-Time Server Status Information .....................................................................21
Network Address Translation and Spoofing ...........................................................22
Maintaining Persistent Sessions and Connections ................................................23
Cookie-Based Persistence (Layer 7) ....................................................................................... 23
IP-Address Based Persistence (Layer 4)................................................................................. 24
Is Connection Persistence Always Needed With Session Persistence? ................................. 24
Layer 7 Load Balancing and Server Selection .......................................................24
Geographic Load Balancing ...................................................................................25
Geographic Load Balancing Routing ....................................................................................... 26
Distributing the Geographic Load ............................................................................................ 26
Adding Equalizer to Your Network .................................................................................29
Equalizer E250GX Network Configuration .............................................................29
Using Equalizer E250GX in a Single Network Environment.................................................... 30
Using Equalizer E250GX in a Dual Network Environment ...................................................... 31
Equalizer E350GX, E450GX, E650GX Network Configuration ..............................32
Using Equalizer E350/450/650GX in a Single VLAN Environment.......................................... 33
Using Equalizer E350/450/650GX in a Dual VLAN Environment ............................................ 34
Using Equalizer E350/450/650GX in a Complex VLAN Environment ..................................... 35
Link Aggregation ....................................................................................................36
Using a Second Equalizer as a Backup Unit ..........................................................36
Where Do I Go Next? ....................................................................................................37
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