Management Architectures OSI Management and TMN

1
Management Architectures OSI Management and TMN
II
Part
2
OSI Management and TMN
Chapter 5
3
Learning Objectives

• Overview
• OSI Information Model
• OSI Organizational Model
• OSI Communication Model
• OSI Functional Model
• Telecommunications Management Network (TMN)
• Chapter Summary

4
Overview

• OSI management serves as the basis for TMN
• OSI as an architecture for the distributed
  management of telecommunication networks
• OSI management has created the first four
  submodels that can be used as a architectural
  reference
• OSI management offers more effective options for
  modeling managed objects
• The OSI Managed framework
• Information model
• Organizational model
• Communication model
• Functional Model

5
OSI Informational Model

• OSI IM Incorporates the principle of
  inheritance from the object-oriented approaches
• Managed object class are defined as a subclass of
  one or more superclasses. Thereby inheriting all
  the properties of the superclass(es)
• OSI-SMI (Structure of management information)
• OSI-SMI uses the following generic structures
• Managed object class, package, parameter,
  attribute, attribute group, behavior, action,
  notification, and name binding
• At the highest of this structure is the Managed
  Object
• MO class includes
• The attributes that are visible on the MO
  boundary, also show the properties and status of
  MO
• A set of actions that affect attribute and
  entire MO. Actions can be MO specific (e.g. reset
  MO)
• A set of notifications to signal events that
  can be initiated by an MO without previous
  request
• Respective behavior specified behavior in the
  MO
• Conditional packages - decision making based on
  (if-conditions, if-then)

6
OSI Informational Model

• OSI Information model
• There are three different tree structure
• Registration tree a directory structure
• Inheritance tree contain MOC definitions and
  relationship
• Containment tree shows the actual MIB structure
  of a system
• Other MOCs are the TNM generic network
  information model that include network fragment,
  managed element, termination point fragment,
  transmission fragment, cross-connection fragment,
  and functional area fragment.
• OSI information model serve as the basis for TNM
• The cross-connection model contain MOCs for
  switching fabric, cross-connection, group
  termination point, termination point, and
  termination pool. Actions can be MO specific
  (e.g. reset MO)

7
OSI Organizational Model

• OSI Organizational model
• OSI management incorporates two roles for
  systems
• A manager role
• An agent role
• OSI systems can assume both roles, and the role
  assignment can change dynamically depending on
  the individual management communication processes
• OSI Domain concept
• Organizational domain (managed objects MOs)
• Administrative domain (managed domains MDs)
• OSI information model serve as the basis for TNM
• Management knowledge systems familiarity with
  the management-relevant functionality of other
  systems. (protocol knowledge)

8
OSI Communication Model

• OSI Communication model
• OSI communication incorporates three different
  categories of management
• System management (SM)
• Layer management (LM)
• Protocol management (layer operation)
• System management the overall management
  behavior of cooperating systems
• SMA (system management application)
• SAME (system management applications entity)
• CMIP (common management information protocol)
• CMIS (common management information services)
• Layer management deals with the functions,
  services, and protocols that are specific to a
  layer and do not require the services of higher
  OSI layers
• The communication entity of LM is called
  (N)-layer management entity (LME) and the
  corresponding protocol (N)-layer management
  protocol
• LME controls the layer entities
• Entity??
• Protocol management - deals with protocols such
  as ISDN, ATM, FDDI)

9
OSI Functional Model

• OSI Functional model
• CMIS Common management information services
  (get, set, create, delete)
• SMF Systems management function (Object mgt.,
  state mgt., alarm mgt.)
• SMFA Systems management functional area (Fault,
  config.. Performance).
• Brief description of OSI-SMFs (list of functions
  specified by OSI. Pages142-147.

10
Telecommunication Management Network (TNM)

• TNM
• Public and Private network providers
• The ITU-T reference model for the TNM represents
  a management architecture that is tailored to the
  specific needs of operators of public networks
  and is aimed at supporting the integrated
  management of these networks
• TNM Objectives
• One management network with distributed
  management functionality to manage different
  basic networks
• All Operations, Administrations, Maintenance
  (OAM) should be taken into account (the control
  and supervision of carrier networks, services,
  and user management including maintenance
• All functional areas should be taken into
  account, as the entire management pyramid

11
Telecommunication Management Network (TNM)

• TNM Architecture
• TNM is the result of the planning that went into
  the development of a management architecture of
  TC networks
• TNM is based partly on the concepts of OSI
  management
• TNM incorporates a logically separate management
  network for the interaction between different
  management-relevant components.
• TNM architecture and all the management
  activities are based on so-called functions
  blocks that can be implemented on a single
  platform or distributed over several platforms
• TNM Functional Blocks
• Telecommunication networks (TNs) individual
  subnetwork offered by a carrier, such as
  telephone networks, ISDN, X.25, Video
  conferencing
• Network Elements (NEs) components that provide
  TN users with the network functionality needed
  and with interface to TNM (switching nodes)
• Operations Systems (OSs) TNM components process
  management information for the purpose of
  controlling and monitoring TN. Data analysis and
  global control take place in the OS.

12
Telecommunication Management Network (TNM)

• TNM Functional Blocks
• Mediation Devices (MDs) TNM components that
  support the forwarding of management information
  between NEs and the OS.
• Workstations (WSs) TNM components that enable
  human users to access the TNM
• Data Communications Network (DCNs)- TNM
  components that allow communication to take place
  between other TNM entities
• TNM Significance represent a management
  applications architecture primarily aimed at
  providers of public networks.

13
Summary
Key Terms

• Object management Function
• State management function
• Attributes for representing relationship
• Alarm reporting function
• Event error management function
• Security alarm reporting function
• Security audit trail function
• Objects and attributes for access control
• Etc.

• OSI
• OSI Management
• TNM
• TC
• Management framework
• Information model
• ISO
• Organizational model
• Communication model
• System management
• Layer management
• Protocol management
• Functional management

14
Next
Management Architecture
Chapter 6