Technical data

ServerIron ADX Advanced Server Load Balancing Guide 15
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Configuring SIP SLB
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5. Bind the real SIP proxy servers.
ServerIronADX(config-vs-proxy-domain-1)# bind sip proxy-server-1 sip
proxy-server-2 sip
6. Return to global configuration mode.
ServerIronADX(config-vs-proxy-domain-1)# exit
Configuring health check
SIP health check can be performed by either the SIP REGISTER or OPTIONS method. Configure the
method according to your needs. The default method is REGISTER.
To configure SIP health check correctly, you must configure the sip-domain-name and dummy-user
at the virtual port level. SIP health check is only enabled at Layer 7 using UDP as the transport
layer.
SIP stateless sample configuration
SIP SLB over UDP (stateful SLB mode)
SIP SLB over UDP makes SIP stateful and adds the intelligence needed to handle different Caller-ID
situations.
SIP stateful basic configuration
1. Configure a real server.
ServerIronADX(config)# server real rs 2.2.2.2
ServerIronADX(config)# port sip sip-proxy-server
ServerIronADX(config)# port sip sip-both-registrar-proxy-server
health-check-method register
2. Configure a virtual server.
ServerIronADX(config)# server virtual-name-or-ip sip_vip 1.1.1.1
ServerIronADX(config)# port sip sip-stateful sip-keyfield-call-id
Syntax: [no] port sip sip-stateful [sip-keyfield-call-id | sip-keyfield-via]
3. Configure a SIP stateful port.
ServerIronADX(config)# port sip sip-stateful
Syntax: [no] port sip sip-stateful
4. Bind a virtual server to a real server.
ServerIronADX(config)# bind sip rs sip
Additional SIP session-specific commands
The following global configuration commands are related to SIP SLB. They will affect all virtual
servers with stateful SIP SLB. The commands will not have any effect on the old stateless SIP SLB.
Stateless SIP SLB will still follow the hash table and ages accordingly.