Udp-Based Sip Servers; Configuring Sip Server Load Balancing - Radware Alteon Application Manual

Alteon Application Switch Operating System Application Guide
Load Balancing Special Services
11. Increase the timeout for idle sessions.
Note: SIP sessions are quite long and data may be flowing while the signaling path is idle.
Because Alteon resides in the signaling path, Radware recommends increasing the real server
session timeout value to 30 minutes (Default: 10 minutes).
>> # /cfg/slb/real 1/tmout 30
>> # /cfg/slb/real 2/tmout 30
>> # /cfg/slb/real 3/tmout 30
12. Configure the virtual service for RPC load balancing.
>> /cfg/slb/virt/service 135
>>Virtual Server 1 135 service #group 1
13. Enable server and client processing at the port level.
>> # /cfg/slb/port 25
>>SLB port 25# client ena
>>SLB port 25# /cfg/slb/port 5
>>SLB port 5# server ena
>>SLB port 5# /cfg/slb/port 6
>>SLB port 6# server ena
>>SLB port 6# /cfg/slb/port 7
>>SLB port 7# server ena
14. Apply and save your changes.
>> SLB port 7# apply
>> SLB port 7# save

UDP-Based SIP servers

SIP processing provides the capability to scan and hash calls based on a SIP Call-ID header to a SIP
server. The Call-ID uniquely identifies a specific SIP session. Future messages from the same Call-ID
are switched to the same SIP server. This involves stateful inspection of SIP messages.
SIP is a text-based protocol with header lines preceding the content. Like HTTP, the first header line
has the method specification followed by the other header lines that specify other parameters like
Call-ID, and so on.

Configuring SIP Server Load Balancing

Figure 51 - SIP Load Balancing Configuration Example, page 327
UDP-based SIP SLB. In this example, three SIP proxy servers are configured in a Real Server Group
100. Alteon is configured for SIP service (port 5060) for virtual server 40.40.40.100.
326
(Increase Real 1 session timeout)
(Increase Real 2 session timeout)
(Increase Real 3 session timeout)
(Select the client port)
(Enable client processing)
(Select the server port)
(Enable server processing)
(Select the server port)
(Enable server processing)
(Select the server port)
(Enable server processing)
illustrates an Alteon performing
Document ID: RDWR-ALOS-V2900_AG1302