20 ServerIron ADX Advanced Server Load Balancing Guide
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Configuring SIP SLB
1
FIGURE 6 Single TCP connection for each SIP request
Client side: Connection reuse with mega proxy client
Figure 7, shows several SIP requests being initiated by a Mega Proxy client. The Mega Proxy uses a
single TCP connection to send all these requests. Each of these requests are identified using their
unique SIP Call-ID. The ServerIron separates these requests and load balances them among
different back end proxy servers.
SIP phone
SIP phone
TCP Connection
TCP Connection
SIP Proxy Server
SIP Proxy Server
Call-ID2...
Call-ID1...
ServerIron
Call-ID1...
Call-ID2...
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