AudioCodes Mediant 800 MSBG User Manual page 114

3.3.2.8.1 Configuring SRD Table
The 'SRD Settings' page allows you to configure up to 32 signaling routing domains (SRD).
An SRD is configured with a unique name and assigned a Media Realm (defined in the
'SIP Media Realm' table - see ''Configuring Media Realms'' on page 109). In addition, other
attributes such as media anchoring and user registration can also be configured.
Once configured, you can use the SRDs as follows:
Associate it with a SIP Interface (see ''Configuring SIP Interface Table'' on page 117)
Associate it with an IP Group (see Configuring IP Groups on page 119)
Associate it with a Proxy Set (see Configuring Proxy Sets Table on page 126)
Apply an Admission Control rule to it (see Configuring Admission Control Table on
page 195)
Define it as a Classification rule for the incoming SIP request (see Configuring
Classification Table on page 198)
Define it as a destination IP-to-IP routing rule (see ''Configuring IP-to-IP Routing
Table'' on page 201)
Therefore, an SRD is a set of definitions, together creating multiple, virtual multi-service IP
gateways:
Multiple and different SIP signaling interfaces (SRD associated with a SIP Interface)
and RTP media (associated with a Media Realm) for multiple Layer-3 networks. Due
to the B2BUA nature of the SBC application, different interfaces can be assigned to
each leg of the call, and between the LAN and WAN side.
Can operate with multiple gateway customers that may reside either in the same or in
different Layer-3 networks as the device. This allows separation of signaling traffic
between different customers. In such a scenario, the device is configured with multiple
SRD's.
Typically, one SRD is defined for each group of SIP User Agents (e.g. proxies, IP phones,
application servers, gateways, softswitches) that communicate with each other. This
provides these entities with VoIP services that reside on the same Layer-3 network (must
be able to communicate without traversing NAT devices and must not have overlapping IP
addresses). One SRD is generally configured for the LAN and one for the WAN. Routing
from one SRD to another is possible, whereby each routing destination (IP Group or
destination address) indicates the SRD to which it belongs.
The 'SRD Settings' page displays the IP Groups, Proxy Sets, and SIP Interfaces
associated with a selected SRD index.
Notes:
SIP User's Manual
•
For a detailed description of SRD's, see ''Multiple SIP Signaling/Media
Interfaces Environment'' on page 405.
•
The SRD table can also be configured using the ini file table parameter
SRD.
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Mediant 800 MSBG
Document #: LTRT-12804