Version 6.6 737 October 2014
Installation & Operation Manual 43. Session Border Controller (SBC) Application
43.6 SIP Network Definitions
The following SIP network definitions are used for configuring the SBC application:
Signaling Routing Domain (SRD) (see Section 43.6.1 on page 737)
SIP Interfaces (see Section 43.6.2 on page 738)
Media Realms (see Section 43.6.3 on page 738)
43.6.1 Signaling Routing Domain (SRD)
Signaling Routing Domain (SRD) is a set of definitions of IP interfaces, resources, SIP
behaviors and other definitions that partition a single SIP board into multiple virtual
multi service gateways.
Refer to 'SRD Table' on page 628 for a detailed description of SRD table and its
configuration.
For a typical SBC application, the following SRDs are configured:
One WAN SRD
One or more LAN SRD (for each group of SIP User Agents – e.g. proxies, IP
phones, application servers etc.)
Routing from one SRD to another is possible, whereby each routing destination (IP
Group or destination address) indicates the SRD to which it belongs.
Figure
43-1: Example of SRD and SIP Interfaces Configuration for SBC Application
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