Brocade Virtual ADX Server Load Balancing Guide (Supporting ADX v03.1.00) User Manual
Page 8
viii
Brocade Virtual ADX Server Load Balancing Guide
53-1003247-01
Port profiles and attributes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .187
Configuring a port profile. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .188
Configuring port profile attributes . . . . . . . . . . . . . . . . . . . . . .189
Port policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .193
Configuring a port policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .193
Binding the policy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .195
Configuring a keepalive interval under a port policy . . . . . . . .196
Health check policy for VIP port . . . . . . . . . . . . . . . . . . . . . . . .197
Element health checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .198
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .198
Configuring element-action expressions . . . . . . . . . . . . . . . . .198
Attaching a health-check policy to an application port
on a server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .205
Displaying health-check policies and their status . . . . . . . . . .206
Displaying health-check policy statistics . . . . . . . . . . . . . . . . .207
Clearing health-check policy statistics . . . . . . . . . . . . . . . . . . .207
Health check with content match . . . . . . . . . . . . . . . . . . . . . . . . . .208
Content match for HTTP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .208
Content match for non-HTTP ports . . . . . . . . . . . . . . . . . . . . . .211
Binary scripted health check. . . . . . . . . . . . . . . . . . . . . . . . . . .214
Boolean health checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .216
Boolean health-check policies . . . . . . . . . . . . . . . . . . . . . . . . .216
Health-check policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .216
Configuring boolean health check . . . . . . . . . . . . . . . . . . . . . . 217
Miscellaneous health check settings . . . . . . . . . . . . . . . . . . . . . . .219
Basing an alias port’s health on the health of its
master port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .219
Basing a port’s health on the health of another port . . . . . . .220
Reassign threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .220
Globally disabling all health-check policies . . . . . . . . . . . . . . .222
Health checking for real servers in other subnets. . . . . . . . . .222
Best path to a remote server . . . . . . . . . . . . . . . . . . . . . . . . . .222
Handling traffic initiated from remote server. . . . . . . . . . . . . .223
Health check of multiple websites on the same real server. .224
Minimum healthy real servers under VIP port . . . . . . . . . . . . .225
Server port bring-up enhancement . . . . . . . . . . . . . . . . . . . . .225
Slow-start mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .225
FIN close for server health check . . . . . . . . . . . . . . . . . . . . . . .233
Health-check state. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .233
Enhanced server bringup . . . . . . . . . . . . . . . . . . . . . . . . . . . . .234
Track-Port support under real server for health checks . . . . .234
Sample show commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .235
Syslog for health status change . . . . . . . . . . . . . . . . . . . . . . . .235
Session table parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . .236
Configuring TCP age. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .239
Configuring UDP age . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .239
Setting the clock scale. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .240
Syslog for session table entries . . . . . . . . . . . . . . . . . . . . . . . .240