APNOMS 2003APNOMS 2003

A New Operations Support System Architecture for Broadband IP Networks

October 2003

JongJong--RakRak LeeLeeleejr@kt.co.krleejr@kt.co.kr

KT Operations Support Systems Lab. - 2 -

KTKTChanges in telecom operational environment

Explosive expansion of Internet and increase of users

Advent of many CLECs and ISPs in Internet business areas

Competition

Sophiscated customer requirements

Various IP networks and services

Various OSSs were developed to meet the needs for individual networks and services management, which resulted in

Proliferation of independent legacy OSSs

Increased OPEX

KT Operations Support Systems Lab. - 3 -

KTKTIP network is evolving so fast …

Core : faster, traffic engineered

Edge : focus on QoS management

RASPSTN,ISDN

GSRKORNET Core

AP-Hub

KIXGESNAS

Router

DSLAM

DU/ISDN

xDSL

K-LL

IP xDSL

M-Ethernet S/W

M-EthernetS/W

Best EffortBest Effort

MPLSMPLSQoSQoS/Security/Security

DiffServDiffServ IPsecIPsec

KT Operations Support Systems Lab. - 4 -

KTKTManaging new IP networks (1)

Increased requirements for service management

QoS/SLA management

Customer self-control

Top down provisioning Need for bottom-up data updating

Internet

Customer

ISP

provisioningSelf-control

usage count

real-time configuration

receive order

order processing

Inventoryquery

provisioning

request

Customer Self-control

user profile

resource

allocated

Billing

completed

Current

Billingorder

processingInventory

New

KT Operations Support Systems Lab. - 5 -

KTKTManaging new IP networks (2)

Increased requirements for network management

DiffServ + MPLS management

Traffic volume management

End-to-end flow management using NetFlow and/or sFlow

Integration of network and server management

Increased requirements for security management

Management of anomalous traffic

Separation of management network from service network

KT Operations Support Systems Lab. - 6 -

KTKTWhy should current OSS be redesigned ?

Current Systems are

unable to support new IP services

Can not deliver premium services such as BoD, QoS/SLA guarantee and security services

So many OSSs developed on different platforms and different data models

Data integrity and maintenance problems exist

System development/Integration takes relatively longer time and is very expensive and risky Can not meet time to market requirement

NML

SML

EML

NEL PSTN/Power/Env Data Transmission/LL

BML OMASSENSE

TEMS

HiNetNMS

CO-LANNMS

Access

DELMONS ANSWERS TIMS RIMS

HiTS

ACOAM

COAM

EOCMSEMOS

ATMNMS

SA 1.0

MOAM

FLC-EMS

WLL-EMS

RNMS NetSolver

CTMS ITOS

SIGNOS

SNMS

PMS

ELITE

MOST

DMAS

DXC-CON

B-DCS NMS

DXC-13 NMS

MASTER

DSLAM-EMS

TOMSCATMS

SO 1.0

CNM

KOSMOS

Disaster Mgmt

NetIS

IP-xDSLNMS

NesPotNMS

NASNMS

ATMEMS

PubNetNMS

FM 1.0

ICIS

<<Fig> current major KT Fig> current major KT OSSsOSSs

KT Operations Support Systems Lab. - 7 -

KTKTOur goal to a New OSS (NeOSS)

Reduced time to market by

Applying a common platform

Improved data integrity by

Applying a common data model

Single data entry but multiple uses

Providing new functionalities to customers and operators

Single sign-on

Pre-ordering

Order tracking

SLA management

Enhanced work force management

On-line management of field information

One-stop handling of customer service requests

Single point of contact

Reduction of service provisioning and fault handling time

KT Operations Support Systems Lab. - 8 -

KTKTNew OSS (NeOSS) platform

Socket I/FSocket I/F

ProvisionProvision

Receive OrderReceive Order

Resource Resource AllocAlloc

ReportReport

FacilityFacilitySubscriberSubscriber

XML/RPCXML/RPC

TestTest

Receive TTReceive TT

Query InformationQuery Information

ReportReport

FacilityFacility

SubscriberSubscriber

SNMPSNMP

DB loadDB load

GUIGUI

StatusStatus ConfigConfig

SNMP/CLISNMP/CLI

DB loadDB load

GUIGUI

StatusStatus ConfigConfig

xDSLxDSL PorvisioningPorvisioning OSSOSSLeased Line Leased Line

PorvisioningPorvisioning OSSOSSIP Traffic IP Traffic

Management SystemManagement SystemMetro Ethernet Metro Ethernet

Management SystemManagement System

Common DBCommon DB

Common InterfacesCommon Interfaces

Configuration Configuration DB LoadingDB Loading

TP monitorTP monitor

Configuration Configuration ManagementManagement

Work orderWork orderProcessingProcessing

PerformancePerformanceManagementManagement

Etc.Etc.

SchedulingScheduling

NetworkNetworkTopologyTopology

NetworkNetworkStatusStatus

Mgmt Mgmt PolicyPolicy

Standard GUI /Single sign OnStandard GUI /Single sign On

Management Specific Management Specific ApplicationsApplications

Common ApplicationsCommon Applications

……

KT Operations Support Systems Lab. - 9 -

KTKTNew OSS (NeOSS) common data model

ㄱㄴㄷㄱㄴㄷ

ㄴㅇㄹㄴㅇㄹ

ABCABCSDFSDF

ASDFASDF

Legacy OSS ALegacy OSS A

Legacy OSS BLegacy OSS B

Data conversionData conversion

New OSS CNew OSS C

New OSS ANew OSS A

New OSS BNew OSS B

IntegrityIntegritycheckcheck

Human errorHuman error

Common DBCommon DB

DB mediatorDB mediator

Legacy OSS CLegacy OSS C

KT Operations Support Systems Lab. - 10 -

KTKT

SO

BMS Layer

SMS Layer

NMS Layer

NetIS

WM

ICIS

SLA

ETC

SA

MOSTTOMSADM

IP-NMS

CNM

PUBNet FR-NMSATM-NMS

FM

New OSS (NeOSS) interworking architecture

EAI/WorkFlow

EAI

Common interfaces

EAI/Message bus

Workflow engine

Web services (XML/SOAP)

externalized externalized process process controlcontrol

BusinessProcessManager

ICIS : Integrated Customer Information ICIS : Integrated Customer Information SysttemSysttem

NetISNetIS : Network Information System: Network Information System

SO : Service SO : Service OrdeingOrdeing SystemSystem

SA : Service Assurance SystemSA : Service Assurance System

SLA : SLA Management SystemSLA : SLA Management System

ADM : Access Domain ManagerADM : Access Domain Manager

WM : Workforce Management SystemWM : Workforce Management System

Web services

TOMS : Telecom Outside plant Management SystemTOMS : Telecom Outside plant Management System

CNM : Customer Network Management SystemCNM : Customer Network Management System

MOST : Transmission NMSMOST : Transmission NMS

IPIP--NMS : NMS : Internet(KornatInternet(Kornat) NMS) NMS

ATMATM--NMS : ATM NMSNMS : ATM NMS

PUBNetPUBNet : : GovermentGoverment Internet NMSInternet NMS

FRFR--NMS : Frame Relay NMSNMS : Frame Relay NMS

IP-NMSIP-NMS

KT Operations Support Systems Lab. - 11 -

KTKTConcluding remarks

New operational environment requires a new (next generation) OSS which will enable

Reduced time to market

Faster system development speed

Flexibility in a changing business environment

Improved service provisioning and maintenance accuracy

Ensured data integrity

Automated work order processing

Keeping customers satisfied

More information for customers on performance and usage

Ensured customer service level by pre-ordering, order tracking and trouble tracking, etc.

KT Operations Support Systems Lab. - 12 -

KTKT

Next generation is just around the corner.

Now is the right time to start the development

of a New (next generation) OSS.