Brocade Virtual ADX Server Load Balancing Guide (Supporting ADX v03.1.00) User Manual
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Brocade Virtual ADX Server Load Balancing Guide
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Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .305
Hot Standby HA protocol operations. . . . . . . . . . . . . . . . . . . . .306
Hot Standby HA configuration modes . . . . . . . . . . . . . . . . . . . . . . .307
Non-Promiscuous mode with default non-shared MAC option307
Promiscuous mode with shared MAC option . . . . . . . . . . . . . .308
Hot Standby HA Configuration Considerations . . . . . . . . . . . . . . . .308
Configuring standard Hot Standby HA . . . . . . . . . . . . . . . . . . . . . . .308
Additional configuration variations . . . . . . . . . . . . . . . . . . . . . . . . .312
VIP and servers in different subnets . . . . . . . . . . . . . . . . . . . .312
Source-NAT in Hot Standby . . . . . . . . . . . . . . . . . . . . . . . . . . . .314
Configuring additional HA parameters . . . . . . . . . . . . . . . . . . . . . .314
Configuring a backup group ID . . . . . . . . . . . . . . . . . . . . . . . . .315
Setting the backup timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .315
Enabling backup preference . . . . . . . . . . . . . . . . . . . . . . . . . . .316
Configuring failover based on active VIP count . . . . . . . . . . . .316
Configuring failover based on the number of active virtual ports317
Delayed failover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .318
Configuring a Brocade Virtual ADX to remain in standby state318
Configuring the forwarding of synchronizing messages . . . . . . . . .319
Configuring synchronization with HA . . . . . . . . . . . . . . . . . . . . . . . .319
Hot-standby HA with routing protocols. . . . . . . . . . . . . . . . . . . . . . .319
Tie state of virtual link and HA physical link using health checks321
SIP overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .323
SIP packet flow. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .324
SIP client registration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .326
SIP terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .326
SIP message headers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .327
SIP SLB and call persistence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .328
SIP and call persistence specifications . . . . . . . . . . . . . . . . . .329
Sample deployment topologies. . . . . . . . . . . . . . . . . . . . . . . . .330
SIP server health monitoring. . . . . . . . . . . . . . . . . . . . . . . . . . .333
Configuring SIP SLB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .333
SIP SLB over UDP (Stateless SLB mode) . . . . . . . . . . . . . . . . .333
SIP SLB over UDP (stateful SLB mode). . . . . . . . . . . . . . . . . . .338
Debug commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .340
SIP SLB command reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .343
Real server configuration mode . . . . . . . . . . . . . . . . . . . . . . . .343
Virtual server configuration mode . . . . . . . . . . . . . . . . . . . . . .343
Sample configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .343
IPv6 Support for Server Load Balancing
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .345