SS7 Basics, Second Edition
This guidebook provides an overview of SS7 technologies, how they are structured, and why they are important.
TABLE OF CONTENTS SS7 Basics, Second Edition
Chapter 8: Operations, Maintenance and Administration Part (OMAP)
Overview
The Operations, Maintenance and Administration Part (OMAP) provides the procedures that are used to operate, maintain, and administer the functions that are associated with the SS7 network. Figure 8.1 shows how OMAP corresponds to the OSI model s Application Layer (Layer 7).
Figure 8.1: OMAP in the SS7 Protocol
Management Model
The management model coordinates the resources in an SS7 system. Figure 8.2 shows how the SS7 System Management Application Process (SMAP) application coordinates the system through the system management application entity (SMAE) protocol layer through the use of the management information base (MIB) performance and alarm data.
Figure 8.2: SS7 Management Model
System Management Application Process (SMAP)
The System Management Application Process (SMAP) monitors, controls and coordinates resources through the Application Layer protocols. The SMAP uses SMAE protocol layer to communicate with network equipment and systems.
Management Information Base (MIB)
The Management Information Base (MIB) contains the performance and alarm data collected from the SS7 network by OMAP and the configuration data accessed by OMAP to assist in the management of the SS7 network.
The information transfer between equipment and systems is performed by the Layer Management Interface (LMI). The LMI is implementation-dependent and not subject to standardization. Data collected from the protocol layers are stored in the MIB using the LMI. The Layer Management Entity (LME) performs the management functions when communicating with it s corresponding SS7 layer.
System Management Application Entity (SMAE)
The System Management Application Entity (SMAE) is the aspect of SMAP involved with communications.
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