PPRESENTATIONS
RESENTATIONSIN
INN
NETWORK
ETWORK M
MANAGEMENT
ANAGEMENT
TMN: Telecommunications
Management Networks
Saad Haj Bakry, PhD, CEng, FIEE
Saad Haj Bakry, PhD, CEng, FIEE
TMN: Telecommunications Management Networks
Objectives / Contents
Introducing
TMN
TMN
Nodes
TMN
Interfaces
Support
Saad Haj Bakry, PhD, CEng, FI
TMN: Telecommunications Management Networks
TMN: Emergence
Birth:
1988 by the CCITT (ITU-T)
First
Implementation of TMN Interfaces:
1992 (ITU-T)
Current
State:
Continued Support (Standards / Products)
Saad Haj Bakry, PhD, CEng, FI
TMN: Telecommunications Management Networks
TMN: Basic Concept
Managed System Telecommunications Networks
TMN: Management is performed
Managing System by a cooperating set of systems
(Network of Systems).
Purpose
How
Accommodating Diverse
Technologies (Multi-Vendors)
Using Standard Interfaces
Saad Haj Bakry, PhD, CEng, FI
TMN: Telecommunications Management Networks
TMN: Operation Principle
Objective
Concerned with: Operation,
Administration, Maintenance, and
Provisioning (OAM&P).
Managed
Systems:
(Using) Network Elements (NEs)
Managing Systems:
Interaction
Operation Systems (OSs)
Interaction:
Standard Interfaces
Saad Haj Bakry, PhD, CEng, FI
TMN: Telecommunications Management Networks
TMN: Structure
Another
TMN
OS: Operation System
WS
Q3
DCN: Data Comm. Network
Q3
Q3
Intelligent NEs
Saad Haj Bakry, PhD, CEng, FI
MD: Mediation Device
Q1
Q2
Simple NEs
TMN: Telecommunications Management Networks
Nodes: Operation System (OS)
Definition:
The TMN Supervisory & Control System
Functionality
Layers:
Business / (Application) Management
Service Management
Network Management
Element Management
Saad Haj Bakry, PhD, CEng, FI
TMN: Telecommunications Management Networks
Nodes: Work Station (WS)
Definition:
TMN Human Site
Function:
Provides Presentation Functions to the
Manager.
Saad Haj Bakry, PhD, CEng, FI
TMN: Telecommunications Management Networks
Nodes: Mediation Device (MD)
& Q-Adaptor (QA)
Definition:
MD / QA are adaptors
(QA Connects TMN Systems to Non-TMN
systems)
Operations:
Storage, Adaptation, Filtering, Thresh-holding,
Condensing, Data from Subtending Equipment.
Saad Haj Bakry, PhD, CEng, FI
TMN: Telecommunications Management Networks
Nodes: Network Element (NE)
Location:
NE resides in the Managed Telecom
Network to Handle Traffic (Not
Management)
Operation:
Origin & Destination of management
Supervision & Control.
Saad Haj Bakry, PhD, CEng, FI
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TMN: Telecommunications Management Networks
Data Communication
Network: DCN
Definition:
TMN Communication Network Between Nodes
(The Transportation Mean of the TMN World)
DCN
versus The Managed Network:
Initially assumed to be Independent
This restriction has been Relaxed to reduce Cost
Saad Haj Bakry, PhD, CEng, FI
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TMN: Telecommunications Management Networks
Interfaces
Function:
Interfaces govern the manner in which
management systems interact.
Standards:
Standards for interfaces are emphasized to
allow nodes (of different vendors) to interact.
Saad Haj Bakry, PhD, CEng, FI
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TMN: Telecommunications Management Networks
Interface: Q1
Q1
Interfacing:
MD - [Q1] NE
A number of small scale NEs supported an MD
(Multiplexing & Transmission Equipment)
Scope:
Layers 1 & 2 of ISO-OSI 7 Layers
Activities:
Transporting Alarm States (Binary Indications)
Loop-Back Requests
Saad Haj Bakry, PhD, CEng, FI
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TMN: Telecommunications Management Networks
Interface: Q2
Q2
Interfacing:
MD - [Q2] NE (more sophisticated)
More intelligent large scale NEs
(More Sophisticated Multiplexing & Transmission)
Scope:
Layers 1, 2 and 3 of ISO-OSI 7 Layers
Activities:
More sophisticated than Q1
Alarm Surveillance
Data Transfer (not only binary indications)
Saad Haj Bakry, PhD, CEng, FI
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TMN: Telecommunications Management Networks
Interface: Q3
Q3
Interfacing:
OS - [Q3] NE / OS - [Q3] QA
OS [Q3] MD / OS [Q3] OS
Intelligent Nes for Intelligent Equipment (Switches)
Scope:
Layers 1 to 7 of ISO-OSI 7 Layers
Activities:
More sophisticated than Q2
Full Capability Interface.
Saad Haj Bakry, PhD, CEng, FI
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TMN: Telecommunications Management Networks
Interfaces: X / F
X Interfacing:
OS (TMN:1)
[X]
OS (TMN:2)
Saad Haj Bakry, PhD, CEng, FI
F Interfacing:
WS
[F]
Other Nodes
16
TMN: Telecommunications Management Networks
Functions: OS Level
Surveillance / Control
Service
objectives / Reference
Compare performance data to
maintenance limits
Invoke maintenance.
Preventive &
Corrective
Saad Haj Bakry, PhD, CEng, FI
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TMN: Telecommunications Management Networks
Functions: DCN Level
Communications
Transport performance
information & commands
via
protocols, languages & messages
Saad Haj Bakry, PhD, CEng, FI
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TMN: Telecommunications Management Networks
Functions: MD Level
Mediation
Provides
data pre-processing & concentration
plus
protocol conversion
Saad Haj Bakry, PhD, CEng, FI
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TMN: Telecommunications Management Networks
Functions: NE Level
Monitoring & Testing
Generates
alarms &
performance information
for
reporting to OS
Saad Haj Bakry, PhD, CEng, FI
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TMN: Telecommunications Management Networks
Remarks
TMN
Internationally recommended concept
Well supported by standards
Important
Relationships
ISO & Internet (SNMP)
Future:
NM products supporting TMN
Saad Haj Bakry, PhD, CEng, FI
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TMN: Telecommunications Management Networks
ITU-T Standard Groups
Topic
Group
Standards
Network Maintenance
SG 4
M-series
Data Networks and Open
System Communication
SG 7
X-series
Switching & Signaling
SG 11
Q-series
Transmission Systems
SG 15
G-series
Saad Haj Bakry, PhD, CEng, FI
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TMN: Telecommunications Management Networks
Standard Documents
ITU-T (CCITT) TMN Standards
Principles of TMN
TMN Management Services
TMN Interface Specification Methodology
Overview of TMN Recommendations
TMN Management Functions
Systems Management Overview
Saad Haj Bakry, PhD, CEng, FI
M.3010
M.3200
M.3020
M.3000
M.3400
X.701
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TMN: Telecommunications Management Networks
References
Enter
the World of TMN, IEEE
Communications Magazine (Special Issue),
Vol. 33, No. 3, March 1995.
Gruber
J.J., Transmission Performance Of
Evolving Telecommunications Networks,
Artech House, Boston-London, 1992.
Saad Haj Bakry, PhD, CEng, FI
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