PA4 PA2

Unit 3: Telecommunications Network Management

An Overview of Requirements, Network Resource Models and Architecture

Rob Brennan

PA4

What is a Telecommunications Network?

Access Network - Connects

subscribers to their provider

Core Network - Connects

providers to each other

Intelligent Node Network

- Provides advanced services

eg mobility

Lots of different transmission networks, technologies, topologies

A Business?

That is connected to

other businesses

and customers

PA4

Example: 3GPP Network Reference Model

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What is Telecoms Management?

• Full name: Operations, Administration and Management • Based on Operations support systems (OSS), a special

purpose IT system for managing a network. • OSS have functions like:

– Network management systems – Service delivery – Service fulfillment, network inventory, activation and

provisioning – Service assurance – Customer care

• Operate on network nodes called network elements (NEs)

PA4

Basic Terminology

NMS

EM EM

NE NE

NE

NE NE

NE

NMS

Management

Bearer/Data/Signaling

Operator domain boundary

SMS SMS

BMS BMS

EM

OSSs

MIM

MIM

MIM

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Some History – OSI Management (1980’s)

• 5 functional areas identified (FCAPS) – Fault management – Configuration management – Accounting management – Performance management – Security management

• Specified in ITU X.700 Series of recommendations • Specified the Common Management Information Protocol

(CMIP) running on the OSI protocol stack – Note that SNMP is a “simple” version of CMIP that runs on TCP/IP

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OSI Management Functional Model

TISO0010-92/d01

Management operations

Notifications

Managed

objects

Managed open system

Communicating

Notifications

emitted

management

operations

Performing

MIS-User

(manager role)

MIS-User

(agent role)

Figure 1 – Systems management interactions

- Management activities are effected through the manipulation of

managed objects (MO).

- MO = Management view of a resource that is subject to management.

- MIB = The system’s set of managed objects plus their attributes.

- GDMO for standardised MOs => generic Manager Apps.

CMIP

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Still in the past: TMN (late ’80’s-present)

• Based on ITU M.3000 series of recommendations • Introduced the “Management Network” • Emphasis on co-ordination of management functions • Introduced operator-operator OSS inter-working • Defined 4 management layers plus NE layer:

– Business – Service – Network – Element

• Defined interfaces (Q, X, R, F) between functional entities

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Revisit our first slide to see TMN

NMS

EM EM

NE NE

NE

NE NE

NE

NMS

Management

Bearer/Data/Signal

Operator domain boundary Basic Terminology:

SMS SMS

BMS BMS

EM

OSSs

MIM

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Example Layer Functions -1

• Element Management – detection of equipment errors, – measuring power consumption, – measuring the temperature of equipment, – measuring the resources that are being used, like CPU-time, buffer

space, queue length etc., – logging of statistical data, – updating firmware.

• Service Management – Quality of Service management (delay, loss, etc.), – Accounting, – Addition and removal of users, – Address assignment, – Maintenance of group addresses.

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Example Layer Functions -2

• Network Management – creation of the complete network view, – creation of dedicated paths through the network to support the

QoS demands of end users, – modification of routing tables, – monitoring of link utilization, – optimizing network performance, and – detection of faults

• Business Management – Subscriber management – Provider/partner management – Strategic planning – Business goal translation to technical goals

PA4

TMN Elaboration at the TMF

Element Management

Network Management

Business

Management

Service

Management

TMN Layers correspond with

TOM horizontals

Network and Systems Management Processes

Service Development and Operations Processes

Customer Care Processes

Customer

Network Element Management Processes

Info

rmatio

n S

yste

ms M

an

ag

em

en

t Pro

cesses

Network

Planning and

Development

Network

Provisioning

Network

Maintenance &

Restoration

Network Data

Management

Network

Inventory

Management

Service

Planning and

Development

Service

Problem

Management

Service

Quality

Management

Rating and

Discounting

Service

Configuration

Customer Interface Management Processes

SalesOrder

Handling

Invoicing

and

Collections

Problem

Handling

Customer

QoS

Management

Physical Resource and Information Technology

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More TMF elaboration (eTOM/NGOSS)

eTOM maps the

NGOSS Business

View

Enterprise Management

Strategy, Infrastructure & Product Operations

Fulfillment Assurance BillingProductLifecycleManagement

InfrastructureLifecycleManagement

OperationsSupport &Readiness

Customer Relationship Management

Service Management & Operations

Resource Management & Operations

Supplier/Partner Relationship Management

Strategy &

Commit

Marketing & Offer Management

Service Development & Management

Resource Development & Management

Supply Chain Development & Management

(Application, Computing and Network)(Application, Computing and Network)

Enterprise Effectiveness

ManagementKnowledge & Research

Management

Enterprise Risk

Management

Strategic & Enterprise

Planning

Financial & Asset

ManagementStakeholder & External

Relations Management

Human Resources

Management

Customer

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Reality: External data flow

Internal data flow

Pending data flow

System appears twice NAME

Planned systems

Key:

JOB

MOBE

TMM

NI

DFG

PVI

CID/SAM

LOC

INPLANS

ISIS

ASOS

Mech Eng

TESS

CCP

TOPS

NRSS

Billstar 3

Billstar 1 PCDB

EC

RIMS PRECISE Pay by

Phone

DOMS Customizer

800

Custom

800 DB

RCRMS

BOSS COR

OSMOP LIDB

E911

NAA

LMOS

Exch Plus

APTOS

PREMIS

MI Starwriter

CMS

(CCRS)

SABR

LFACS

FWS

PICS

/DPCR

TNDS/TK

LEIS

WM

COSMOS

SOAC

PAWS

LOMS

FIRST

ORGIS

GIR BAIF

IRSS

SDID

SDDL-POF

SOCS

PDR

TOR

AOG

SORD

CRMS

EARS

MAPS

CESAR

CABS

Data Svc

PR

JOUR

GL

RAP

3rd Pty

Bill Print

MP USAGE

RM REVE

Bill Format

Bill Day

Billing

Directory

Delivery

Corp Books

MI

CL CONF

EM EXCH

Listing Svc

C/CA

SOFE

LSD&C

Data

Warehse FIMS

PARIS

CARTS

COR

SUMMIT 4.0

SBIR

MRDB

Sales Agency

ORBITS

Athena

AA PBCC

SMS

DRS DCN

CPNI Sales Comp

PB Awards

APTOS

PaSS

COIN

AP

PBVS

CSFT

IP

SPACE

MARCH

CSTAR

Separation

ConnectVu

CLONES

TNM NMA-F

DCOS-2000

NetPilot

SEAS

EADAS NDS-TIDE

AMOS NSDB

TIRKS

IPMS

MOPICS PMM

CMTS

FTDM

SARTS

PVS | PMI

REACT

2001

TSA

NTAS

MTAS

LATIS

CRAS

CIAS

ANS

LMOS

MLT

SORD

SOAC

PBOD

Service

Manager

Electronic

Bonding

ALRU

PDS-ERA

PDS

Customer

Profile

AIM

POS-R

POS

BRIS

REMS

ESS

EmFiSys

TAPS

AUTS

TRAINS

WTS

IFS

TWIST

ATR

NSDM

MTR

TCMS

Tech PDP

PMIS

Paging CNR

PBITS

MP/F

FLEXCOM

COSMOS

WFA/C

OPAS

/Loopview

OPS/INE

Predictor

INA

Transport

SSI PBRIMS IPMS CCSN TAN CCPL MP/F

ComnLang Taskmate

SCS

FEPS

CUR/CAR

TAGS

FDOC

Network

AT&T

Network

DSC NOR

AT&T

Network

NOR

STP SCP

ISCP

EDIIS

PB1

Network

AT&T

NOR

IS

ERMIS

Common Interface Layer

ATC

CIDB

Advantage

TIRKS

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Challenges

• Dealing with Network Evolution

– New access technologies eg GSM, 3G

– New management protocols eg CORBA (GIOP)

– New core network technologies eg TCP/IP based MoIP

• Management stovepipes

• Increasing flexibility/reducing OpEx

• The Internet

PA4

Additional Information

• TMN Tutorial Document on course page

• TM Forum Homepage https://www.tmforum.org/