Radware Alteon - Page 27

Alteon Application Switch Operating System Application Guide
Table of Contents
Document ID: RDWR-ALOS-V2900_AG1302 27
Chapter 11 – Open Shortest Path First (OSPF).................................................. 137
OSPF Overview ........................................................................................................ 137
Equal Cost Multipath Routing Support .............................................................................. 138
Types of OSPF Areas ....................................................................................................... 138
Types of OSPF Routing Devices ...................................................................................... 139
Neighbors and Adjacencies .............................................................................................. 139
The Link-State Database .................................................................................................. 140
The Shortest Path First Tree ............................................................................................ 140
Internal versus External Routing ....................................................................................... 140
OSPF Implementation .............................................................................................. 141
Defining Areas .................................................................................................................. 141
Interface Cost ................................................................................................................... 143
Electing the Designated Router and Backup .................................................................... 143
Summarizing Routes ........................................................................................................ 143
Default Routes .................................................................................................................. 143
Virtual Links ...................................................................................................................... 145
Router ID .......................................................................................................................... 145
Authentication ................................................................................................................... 146
Host Routes for Load Balancing ....................................................................................... 148
Redistributing Routes into OSPF ...................................................................................... 148
OSPF Configuration Examples ................................................................................. 150
Configuring OSPF for a Virtual Link on Alteon 1 .............................................................. 153
Configuring OSPF for a Virtual Link on Alteon 2 .............................................................. 154
Configuring Host Routes on Alteon 1 ............................................................................... 159
Configuring Host Routes on Alteon 2 ............................................................................... 162
Verifying OSPF Configuration ........................................................................................... 164
Chapter 12 – Server Load Balancing................................................................... 165
Understanding Server Load Balancing ..................................................................... 165
Identifying Your Network Needs ....................................................................................... 165
How Server Load Balancing Works .................................................................................. 166
Implementing Server Load Balancing ....................................................................... 167
Basic Server Load Balancing Topology ............................................................................ 168
Network Topology Requirements ..................................................................................... 169
Server Load Balancing Configuration Basics ................................................................... 171
Physical and Logical Real Server Modes ......................................................................... 174
Supported Services and Applications ............................................................................... 175
Disabling and Enabling Real Servers ............................................................................... 176
Health Checks for Real Servers ....................................................................................... 176
Multiple Services per Real Server .................................................................................... 177
Buddy Server Health Checks ............................................................................................ 177
Metrics for Real Server Groups ........................................................................................ 180
Group Availability Threshold ............................................................................................. 183
Weights for Real Servers .................................................................................................. 184
Connection Time-Outs for Real Servers ........................................................................... 184