Introduction to TMN

1
Introduction to TMN Telecommunications Management
Network
2
Contents
1. TMN Definition 2. TMN Functional
Architecture 3. TMN Physical Architecture 4. Re
lationship Between TMN and OSI Systems
Management 5. TMN Logical Layer Model 6. Key
Technologies for TMN 7. Conclusions
3
Here We Are
1. Introduction 2. TMN Functional
Architecture 3. TMN Physical Architecture 4. Rel
ationship Between TMN and OSI Systems
Management 5. TMN Logical Layer Model 6. Key
Technologies for TMN 7. Concluding Remarks
4
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 (OAMP) information.
5
Relationship of TMN to Telecommunications Network
OS Operations System
6
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.

7
TMN ??

• SDH????????
• ATM???????????
• PACS????????
• GSM????
• IN?????
• IOSS ????????

8
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 Services. M.3400 TMN
Management Functions.
9
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.
10
Here We Are
1. Introduction 2. TMN Functional
Architecture 3. TMN Physical Architecture 4. Rel
ationship Between TMN and OSI Systems
Management 5. TMN Logical Layer Model 6. Key
Technologies for TMN 7. Concluding Remarks
11
TMN Functional Architecture
TMN functional architecture is based on a number
of TMN function blocks OSF (Operations Systems
Function) MF (Mediation Function) WSF (Work
Station Function) NEF (Network Element
Function) QAF (Q Adaptor Function)
TMN
OSF
WSF
MF
QAF
NEF
12
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.
13
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 information. 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).
14
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 . x
reference points - Between the OSF function
blocks in different TMNs
15
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
16
Reference Points Between Management Function
Blocks
17
Here We Are
1. Introduction 2. TMN Functional
Architecture 3. TMN Physical Architecture 4. Rel
ationship Between TMN and OSI Systems
Management 5. TMN Logical Layer Model 6. Key
Technologies for TMN 7. Concluding Remarks
18
TMN Physical Architecture

• The TMN is represented by several building blocks
  that provide an overall embodiment of the
  management issues and functions of TMN.

19
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 that performs NEFs.
20
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 1 to 3.
21
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. Qxand Q3 are distinguished
primarily by the information they carry.
22
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.

23
Relationship of TMN Interfaces to TMN Building
Blocks
TMN
24
Q3 vs. Qx Interface
25
Here We Are
1. Introduction 2. TMN Functional
Architecture 3. TMN Physical Architecture 4. Rel
ationship Between TMN and OSI Systems
Management 5. TMN Logical Layer Model 6. Key
Technologies for TMN 7. Concluding Remarks
26
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.
27
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
. . .
Fault correction
Restoration
Provisioning
Monitoring
Verification
OSI Systems Management Functions
. . .
Log Control SMF
Event Report SMF
Object SMF
Accounting Meter SMF
ACSE ROSE CMISE
28
Here We Are
1. Introduction 2. TMN Functional
Architecture 3. TMN Physical Architecture 4. Rel
ationship Between TMN and OSI Systems
Management 5. TMN Logical Layer Model 6. Key
Technologies for TMN 7. Concluding Remarks
29
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

30
TMN Logical Layer Model
31
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.

32
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.

33
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.

34
Here We Are
1. Introduction 2. TMN Functional
Architecture 3. TMN Physical Architecture 4. Rel
ationship Between TMN and OSI Systems
Management 5. TMN Logical Layer Model 6. Key
Technologies for TMN 7. Concluding Remarks
35
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-Orie
nted Technology. 6. Distributed Processing
Technology 7. Q Adaption of Existing Proprietary
Management Applications. 8. Domain Knowledge in
Telecommunications.
36
Here We Are
1. Introduction 2. TMN Functional
Architecture 3. TMN Physical Architecture 4. Rel
ationship Between TMN and OSI Systems
Management 5. TMN Logical Layer Model 6. Key
Technologies for TMN 7. Concluding Remarks
37
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.