Message Processors

The role of the Message Processors (MPs) is to provide the Diameter protocol messaging interfaces and message processing support for DSR applications. NOAMs and SOAMs replicate configuration and provisioning data to the MPs, which measurements, events, alarms, and log data to the OAM servers. There are two types of message processors: Diameter Agent Message Processors (DA-MPs) and STP-MPs.

DA-MPs host the following DSR applications:

• Range Based Address Resolution (RBAR)
• Full Address Based Resolution (FABR)
• Policy and Charging Application (PCA)
• Virtual Signaling Transfer Point (vSTP)
• Service Capability Exposure Function (SCEF)

Machine to Machine Interface (MMI) is a provisioning method that uses a RESTful (Representational State Transfer) interface to access OAM services.

The RBAR and PCA applications can run on the same DA-MP and RD-IWF.

PCA and GLA can run on the same DA-MP or on separate DA-MPs.

FABR and DM-IWF must run on the same DA-MP if both process the same Diameter Request message (Application Chaining).

RBAR and DM-IWF must run on the same DA-MP if both process the same Diameter Request message (Application Chaining).

IPFE runs as separate MPs.