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Management Functional Areas

M.3400:  The Functional Management approach to TMN


  1. Introduction
    1. Operations System Functions
    2. System Management Functions
  2. FM Fault Management
    1. Standard
    2. Alarm surveillance
    3. Fault localization
    4. Fault correction
    5. Testing
    6. Trouble Administration
  3. CM Configuration Management
    1. Standard
    2. Provisioning
    3. Equipment management
    4. Service management
  4. AM Accounting Management
    1. Standard
    2. Meetering
    3. Charging
    4. Billing
    5. Accounting
  5. PM Performance Management
    1. Standard
    2. Purposes
    3. Quality of Service
    4. Issues
  6. SM Security Management
  7. General Management
  8. MFA versus LLA
    1. FM
    2. CM
    3. AM
    4. PM
    5. SM
    6. Process Cycles
  9. Summary

3.1 Introduction

[M.3010]:  Plan, provision, install, maintain, operate and administer telecommunication networks and services.

[M.3400]:  A TMN management function is the smallest part of the TMN management service as perceived by a user of the {management} service.  In reality it will generally consist of a sequence of actions on a defined managed object or objects.

The management functional areas are borrowed from the definitions for Management of Open System Interconnect X.7xx-series.

These Management Functional Areas (MFA) are orthogonal to the hierarchy of functional layers (LLA:  NEL/­EML/­NML/ SML/ BML);  they are commonly indicated by their first letters 'FCAPS':

FM:  Fault Management
Management of faults and problems in the network;
CM:  Configuration Management
Management of equipment- and service configuration;
AM:  Accounting Management
Keeping track of resource usage, in particular for billing;
PM:  Performance Management
Optimising network usage/performance;
SM:  Security Management
Ensure authorised access.
LLA versus MFA

One can view them as groups of management operations, each considering a particular aspect of network management.  The work will be done by Operations System Functions (OSF) at the intersection of an MFA 'pillar' and an LLA layer.  However, these operational areas are not autonomous contrary to the suggestion by the 5 pillars in the drawing above !  And the actual scope of operations in each area will vary with the hierarchical layer (capabilities at the BML will not be significant).

Note:   The recommendations typically refer explicitly to Network Elements;  a small note mentions that the management objective also includes the TMN itself.  Outside the TMN-world this is known as 'self management' or 'system management', and indicated as 'General Management' in this document (GM, to avoid confusion with Security Management).

Operations System Functions

[M.3010]:  The OSF processes information related to the telecommunications management for the purpose of monitoring/coordinating and/or controlling telecommunications functions including management functions {i.e. the TMN itself}.
Here is where the management capabilities are actually located.  More on OSFs in chapter Generic Components & Interfaces.

System Management Functions

There are a number of general functions not related to a particular functional area or hierarchical layer, but basically applicable to all of them (e.g. 'Log control functions').  These are called SMFs or SMURFs, listed in M.3400, and defined individually in the X.7xx- series.  They are discussed in more detail in chapter System Management Functions.

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