Coyote Point Systems E350GX Installation And Administration Manual page 3

Contents
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
Equalizer Installation and Administration Guide 3