Introduction to TMN
Telecommunications Management
Network
Contents
1. TMN Definition
2. TMN Functional Architecture
3. TMN Physical Architecture
4. Relationship Between TMN and OSI
Systems Management
5. TMN Logical Layer Model
6. Key Technologies for TMN
7. Conclusions
Here We Are
1. Introduction
2. TMN Functional Architecture
3. TMN Physical Architecture
4. Relationship Between TMN and OSI
Systems Management
5. TMN Logical Layer Model
6. Key Technologies for TMN
7. Concluding Remarks
TMN Definition
Telecommunications Management Network
:
A TMN is a support network that interfaces to
the
telecommunications network to provide the
means for transporting and processing
Operations, Administration, Maintenance,
Provisioning, and Management (OAM&P)
information.
Relationship of TMN to
Telecommunications Network
OS: Operations System
TMN Definition
TMN provides a framework for achieving
interconnectivity and communication across
heterogeneous operations systems and
telecommunications networks.
TMN was developed by the International
Telecommunications Union (ITU) as an
infrastructure to support management and
deployment of dynamic telecommunications
services.
TMN 應用
– SDH同步數位光纖網路
– ATM非同步傳輸模式交換系統
– PACS個人接取通信服務
– GSM行動電話
– IN智慧型網路
– IOSS 維運支援系統整合
TMN Recommendations
M.3000 series: TMN Overall Principles and Framework.
M.3000: Tutorial Introduction to TMN
M.3010: Principles for a TMN.
M.3020: TMN Interface Specification Methodology.
M.3100 series: TMN Models and Object Definitions.
M.3100: Generic Network Information Model.
M.3180: Catalogue of TMN Management Information.
M.3200 series: TMN Management Services.
M.3200: TMN Management Services: Overview.
M.3300 series: Aspects for workstations connected to TMN.
M.3300: TMN Management Capabilities presented at the F Interface.
M.3400 series: Management Functions supporting TMN Servic
M.3400: TMN Management Functions.
Other TMN Recommendations
M.60 Section2: TMN Terminology & Definitions.
Q.811: Lower Layer Protocol Profiles for the Q3 Interface.
Q.812: Upper Layer Protocol Profiles for the Q3 Interface.
Q.821: Stage 2 and Stage 3 Descriptions for the Q3
Interface -Alarm Surveillance.
Q.822: Stage 1, Stage 2 and Stage 3 Description for the Q3
Interface - Performance Management.
G.773: Protocol Suite for Q Interface for Management for
Transmission Systems.
G.774: SDH Management Information Model for the Network
Element View.
Here We Are
1. Introduction
2. TMN Functional Architecture
3. TMN Physical Architecture
4. Relationship Between TMN and OSI
Systems Management
5. TMN Logical Layer Model
6. Key Technologies for TMN
7. Concluding Remarks
TMN Functional Architecture
TMN functional architecture is based on a number of
TMN function blocks:
OSF (Operations Systems Function)
TMN
MF (Mediation Function)
WSF (Work Station Function)
OSF
WSF
NEF (Network Element Function)
MF
QAF (Q Adaptor Function)
QAF
NE
F
TMN Function Blocks
Operations Systems Function (OSF) block:
For monitoring/coordinating and/or controlling
telecommunications
functions including management functions.
Network Element Function (NEF) block:
For the purpose of being monitored and/or controlled.
Workstation Function (WSF) block:
For interpreting TMN information for the management
information
user.
Support for interfacing to a human user.
TMN Function Blocks
(cont.)
Mediation Function (MF) block:
Acts on information passing between an OSF and NEF (or QAF) to
achieve smooth and efficient communication.
MF blocks may store, adapt, filter, threshold, and condense informatio
Q Adaptor Function (QAF) block:
To connect those non-TMN NEFs and OSFs to TMN.
To translate between a TMN reference point and a non-TMN
reference point (e.g., proprietary).
Reference Points
Reference point:
Conceptual point of information exchange
between non-overlapping management function
blocks.
TMN reference points:
. q reference points
- qx: Between NEF and MF, QAF and MF, MF and MF
- q3:Between NEF and OSF, QAF and OSF, MF and OSF, OSF
and OSF
. f reference points
- Between WSF and OSF, WSF and MF
Reference Points (cont.)
non-TMN reference points:
g reference points
- Between human users and the WSF
m reference points
- Between QAF and non-TMN managed
entities
Reference Points
Between Management Function Blocks
f
m
WSF
f
Here We Are
1. Introduction
2. TMN Functional Architecture
3. TMN Physical Architecture
4. Relationship Between TMN and OSI
Systems Management
5. TMN Logical Layer Model
6. Key Technologies for TMN
7. Concluding Remarks
TMN Physical Architecture
The TMN is represented
by several building blocks
that provide an overall
embodiment of the
management issues and
functions of TMN.
TMN Building Blocks
Operations System (OS)
The OS is the system performing OSFs.
Mediation Device (MD)
The MD is the device performing MFs.
Q Adaptor (QA)
The QA is a device which connects NEs or OSs with
non-TMN compatibale interfaces to Qx or Q3
interfaces.
Network Element (NE)
The NE is comprised of telecommunication equipment
(in
groups, parts, or the whole) and support equipment
TMN Building Blocks (cont.)
Workstation (WS)
The WS is the system performing WSFs.
The WSFs translate information at the f reference point to
a
displayable format at the g reference point, and vice
versa.
Data Communication Network (DCN)
The DCN is a communication network within a TMN which
supports the data communication function (DCF).
The DCN represents an implementation of the OSI layers
TMN Standard Interfaces
The interoperable interface defines the
protocol suite and the messages carried by
the protocol.
Three TMN Standard Interfaces:
Q interface, F interface, X interface
TMN Standard Interfaces:
Q interface, applied at q reference points
Qx: is applied at the qx reference points.
Q3: is applied at the q3 reference points.
TMN Standard Interfaces
F interface, applied at f reference points
F connects WSs to the OSF or MF through a DCN.
X interface, applied at x reference points
X interconnects two TMNs or interconnects a TMN
with another management network which
accommodates a TMN-like interface.
Relationship of TMN Interfaces to
TMN Building Blocks
TMN
TMN
OS
X/F/Q3
DCN
X
F
WS
Q3/F
MD
Q3
Q3
QX
DCN
QX
QA
NE
QA
QX
NE
Q3 vs. Qx Interface
Here We Are
1. Introduction
2. TMN Functional Architecture
3. TMN Physical Architecture
4. Relationship Between TMN and OSI
Systems Management
5. TMN Logical Layer Model
6. Key Technologies for TMN
7. Concluding Remarks
TMN vs. OSI Management
1. TMN follows OSI systems management concept.
2. TMN uses OSI Guidelines for the Definition of
Managed Objects (GDMO) to define managed objects.
(Management Information Modeling)
3. TMN uses OSI CMIS/CMIP to exchange management
information. (Management Communication Protocol)
4. TMN uses OSI Systems Management Functions (SMF)
and defines new management functions.
(Systems Management Functions)
5. TMN may use FTAM for file transfer type service.
Telecommunications Management
Services and Functions
Telecommunications Management Services and Components
Management of
Transmission Paths
Management of
Switched Network
Management of
Customer Services
...
Telecommunications Management Functions
Provisioning Monitoring
Fault
correction
Verification
...
OSI Systems Management Functions
Log Control
SMF
Event Report
SMF
Object
SMF
...
Accounting
Meter SMF
ACSE + ROSE + CMISE
Restoration
Here We Are
1. Introduction
2. TMN Functional Architecture
3. TMN Physical Architecture
4. Relationship Between TMN and OSI
Systems Management
5. TMN Logical Layer Model
6. Key Technologies for TMN
7. Concluding Remarks
TMN Logical Layer Model
TMN supplies a model of logical layers that define or suggest the
management level for specific functionality.





Business Management Layer
Service Management Layer
Network Management Layer
Element Management Layer
Network Element Layer
TMN Logical Layer Model
BML
SML
NML
EML
EML
OS
MD
NEL
Network
OS
MD for
Network OS
MD
QA for
Network OS
Q-Adapter
Network
Element
EML
OS
BML & SML
 BML
– High-level planning, budgeting, goal setting, executive
decisions, business level agreements (BLAs), etc.
 SML
– Uses information presented by NML to manage
contracted service to existing and potential customers.
– This is the basic point of contact with customers for
provisioning, accounts, quality of service, and fault
management.
– The key point for interaction with service providers and
with other administrative domains.
NML & EML
 NML
– NML has visibility of the entire network, based on the NE
information presented by the EML OSs.
– The NML manages individual NEs and all NEs as a group.
– The NML coordinates all network activities and supports
the demands of the SML.
 EML
– Manages each network element.
– EML element managers, or OSs, are responsible for the
TMN-manageable information in certain network elements.
NEL
 NEL
– The NEL presents the TMN-manageable
information in an individual NE.
– Both the Q-Adapter, which adapts between
TMN and non-TMN information, and the NE
are located in the NEL.
Here We Are
1. Introduction
2. TMN Functional Architecture
3. TMN Physical Architecture
4. Relationship Between TMN and OSI
Systems Management
5. TMN Logical Layer Model
6. Key Technologies for TMN
7. Concluding Remarks
Key Technologies for TMN
1. Managed Object Modeling and Interpretation.
2. Underlying Management Communication
Protocols (CMIS/P).
3. Management Platform Based on Standard OSI
Systems Management Functions.
4. Interoperability Issues Due to the Permitted
Options in OSI Protocols.
5. Object-Oriented Technology.
6. Distributed Processing Technology
7. Q Adaption of Existing Proprietary
Management Applications.
8. Domain Knowledge in Telecommunications.
Here We Are
1. Introduction
2. TMN Functional Architecture
3. TMN Physical Architecture
4. Relationship Between TMN and OSI
Systems Management
5. TMN Logical Layer Model
6. Key Technologies for TMN
7. Concluding Remarks
Concluding Remarks
1.Public telecommunication liberalization will lead to the
demand of TMN compliant products.
2.Standardization of telecommunications network
management is still in progress.
3.TMN will be adopted for the management of
telecommunications network elements/equipment with
new technology. (e.g., SDH, ATM, B-ISDN, IN)
4.OSI management technology is the key to the
success of TMN.