Session 12
TMN
MJ12/0704
Adapted from Network Management: Principles and Practice © Mani Subramanian 2000 and solely used for Network
Management course at Universitas Bina Nusantara
1
TMN
• Necessity for interoperability basis for TMN
• Need for management of more than just the
network components
• Networks / subnetworks need to be managed
• Services - internal and external need management
• Business management needs to be addressed
• TMN joint effort by ITU-T and ISO
MJ12/0704
2
TMN Conceptual Model
Telecommunications
Management
Network
Operations
System
Operations
System
NMS
Operations
System
Workstation
Data Communication Network
Switching
System
Transmission
System
Switching
System
Transmission
System
Voice
Switching
System
Voice
Telecommunication Network
MJ12/0704
3
TMN Conceptual Model
Service provider A
Service provider B
Customers
Customers
Services provided by
Telecommunications
Provider
Services provided by
Telecommunications
Provider
Network
Network
Q3
Operations Systems
Q3
OS OS
F
Workstation
System Operators
Q3
X
Operations Systems
Q3
OS OS
F
Workstation
System Operators
• Components
• Interfaces
MJ12/0704
4
TMN Services & Functions
TMN Management Services
Business
Management
Service
Management
Network
Management
Element
Management
System Management Functional Areas
Configuration
Management
Fault
Management
Performance
Management
Security
Management
DCF
OSF
Accounting
Management
TMN Function Blocks
WSF
System Management Functions
Object
Alarm
Management
Management
NEF
MF
QAF
TMN Functional Components
NM
Presentation
Manager
Function
CMISE
M-GET /
GET-REQUEST
M-SET /
SET-REQUEST
M-CREATE
Remote Procedure Call
ACSE
ROSE
Communication Transport Service
(OSI Presentation Layer)
MJ12/0704
5
TMN Architecture
TMN Architecture
Functional
Architecture
Physical
Architecture
Informational
Architecture
• Functional architecture:
• Functional modules or blocks
• Reference points between modules
• Physical architecture:
• Physical blocks
• Physical interfaces between the blocks
• Informational architecture:
• Information exchange between entities
• Object oriented
MJ12/0704
6
Functional Architecture
TMN B
OSF
x
TMN A
OSF
q3
OSF
f
WSF
q3
q3
MF
qx
MF Mediation Function
NEF Network Element Function
OSF Operations Systems Function
QAF Q Adapter Function
WSF Workstation Function
MJ12/0704
NEF
qx
QAF
7
TMN Reference Point
Function Block
Function Block
Reference Point
• Function blocks connected by conceptual interfaces, called reference
point
• Designated by lower case letters (upper case letter for physical
interfaces)
• x: Interface between operations systems that belong to different
domains; e.g., interface between two NMSs belonging to two different
domains
• q3: Interface between two OSFs in the same domain
• qx: Interface between mediation function such as RMON and agent in
the network element
• f: Interface to the workstation
MJ12/0704
8
Functional Architecture
• OSF:
• Functions performed by Operations systems: e.g., NMS,
testing, accounting, trouble tracking
• NEF:
• Functions needed to support network elements;network
elements themselves are not part of TMN: e.g., NM agent,
MIB, collision rate
• MF:
• Operations on the information between network elements;
e.g. filtering, protocol conversion. MF can be shared
between multiple OSSs; e.g. RMON
• WSF:
• Human-TMN activities interface; e.g., GUI
• QAF:
• Adapter function to accommodate non-TMN entities; e.g.
proxy server, SNMP-to-CMIP
MJ12/0704
9
Physical Architecture
Operations
System
(OS)
X
TMN
Operations
System
(OS)
X/F/Q3
Data Communications Network
F/Q3
Workstation
F
Mediation
Device
(MD)
Q3
Qx
Q3
Data Communications Network
Qx
Q Adapter
(QA)
MJ12/0704
Network
Element
(NE)
Q Adapter
(QA)
Qx
Network
Element
(NE)
10
Information Architecture
Operations / Requests
Manager
Responses
Agent
Notifications / Traps
MJ12/0704
11
Service Architecture
Business Management
q3
Service Management
q3
Network Management
q3
Element Management
q3
Managed Network Element
MJ12/0704
12
OS: Trunk Testing System
Trunk
Test System
Transmission
Test System
Telecommunication Network
Transmission
Test System
Nodes
Voice
Public Switch
Transmission Links
Voice
Public Switch
• Trunk is a logical connection between two switching nodes
• Periodic measurement of loss and S/N of all trunks
• Failing threshold set for QoS; failing trunks removed out of
service before the customer complains
MJ12/0704
13
OS: Telephone Switch Traffic
Traffic
Measurement System
Traffic
Counter
Data / Telecommunication
Network
Traffic
Counter
Nodes
Router / Switch
Transmission Links
Router / Switch
Figure 11.2 Operations System for Traffic Measurement
•
•
•
•
MJ12/0704
Traffic monitored at switch appearance
Call blocking statistics obtained
Traffic and call-blocking statistics provide data for planning
Importance of Operations, administration, maintenance, and
provisioning
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Example NMF
TMN Logical
Layered Architecture
Business
Management
q3
Ref. Point
Service
Management
q3
Ref. Point
Network
Management
q3
Ref. Point
Element
Management
MJ12/0704
Physical Realization of
TMN Architecture
Customer
Service
Management
Q3
Service
Details
Service Mgmt
Tarif/Charging
Service Mgmt
Provisioning
Service
Configuration
Net Mgmt
Routing Admin
Equipment
Configuration
Net Element
Cust Admin
Q3
Net Mgmt
Traffic Admin
Q3
Net Element
Switch Mgmt
Performance and
Billing Data
Service Mgmt
Other
Serviceimpacting
Events
Net Mgmt
Restoration
Equipment
Alarms
Net Element
Trans Eqpt
Mgmt
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