(Supporting ADX v03.1.00) Owner manual

328 Brocade Virtual ADX Server Load Balancing Guide

53-1003247-01

SIP SLB and call persistence

Figure 41 shows an overview of a Virtual ADX SIP server load balancing implementation.

FIGURE 41 Virtual ADX SIP Server Load Balancing implementation

There are three kinds of SIP servers:

• Proxy server

• Redirect server

• Registrar server

In Figure 41, the Virtual ADX SIP SLB uses the Domain-1 VIP to load balance SIP requests from

Client A (user1) or Client B (user2) among Domain 1 proxy servers and registrar servers.

The SIP Server Load Balancing uses the Domain-2 VIP to load balance SIP requests from Client A

(user1) or Client B (user2) among Domain 2 proxy servers and registrar servers.

The Virtual ADX offers support for the following SIP servers in accordance with RFC 3261:

• Proxy

• Redirect

• Registrar

The Virtual ADX supports the following methods in accordance with RFC 3261:

• INVITE

• REGISTER

• ACK