1. A New Operations Support System Architecture for Broadband IP Networks
Jong-Rak Lee
October 2003

2. Changes 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

3. IP network is evolving so fast …
DU/ISDN
PSTN,
ISDN
RAS
AP-Hub
xDSL
GSR
NAS
KIX
DSLAM
GES
KORNET
Core
K-LL
Best Effort
Router
M-Ethernet
S/W
QoS/Security
MPLS
IP xDSL
M-Ethernet S/W
DiffServ
IPsec
Core : faster, traffic engineered
Edge : focus on QoS management

4. Managing new IP networks (1)
Increased requirements for service management
QoS/SLA management
Customer self-control
Top down provisioning  Need for bottom-up data updating
completed
Customer
Self-control
receive
order
Billing
order
processing
Inventory
Billing
Inventory
order
processing
user profile
resource
allocated
query
request
Self-control
provisioning
usage count
Current
provisioning
Customer
New
real-time configuration
Internet
ISP

5. Managing 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

6. Why 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
BML
SENSE
OMAS
NetIS
ICIS
SO 1.0
SA 1.0
DELMONS
ANSWERS
TIMS
RIMS
SML K O S M
FM 1.0
CNM
RNMS
NetSolver
HiTS
ATM
NMS
NML
CTMS
ITOS
HiNet
NMS
PubNet
NMS
MOST
Disaster Mgmt S I G N O S N M
IP-
xDSL
NMS
NesPot
NMS
NAS
NMS
TEMS
CO-
LAN
NMS
EOCMS
EMOS
DXC-CON
FLC
-EMS
DSLAM
-EMS
WLL
-EMS
EML
DMAS
B-DCS NMS
ACOAM
ATM
EMS
DXC-13 NMS
PMS
COAM
CATMS
TOMS
ELITE
MOAM
MASTER
NEL
PSTN/Power/Env
Data
Transmission/LL
Access
<Fig> current major KT OSSs

7. Our 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

8. New OSS (NeOSS) platform
Leased Line Porvisioning OSS
IP Traffic Management System
Metro Ethernet Management System
xDSL Porvisioning OSS
Socket I/F
Provision
Receive Order
Resource Alloc
Report
Facility
Subscriber
Receive TT
Report
GUI
GUI
Query Information
Status
Config
Status
Config
Test
Subscriber
DB load …
DB load
Facility
XML/RPC
SNMP
SNMP/CLI
Common Interfaces
Configuration
DB Loading
TP monitor
Management
Work order
Processing
Performance
Etc.
Scheduling
Network
Topology
Status
Mgmt
Policy
Standard GUI /Single sign On
Management Specific Applications
Common DB
Common Applications

9. New OSS (NeOSS) common data model
Legacy OSS A
ABC
SDF
Data conversion
Legacy OSS C
Human error
ASDF
Integrity
check
ㄱㄴㄷ
ㄴㅇㄹ
New OSS A
Legacy OSS B
Common DB
New OSS B
New OSS C
DB mediator

10. New OSS (NeOSS) interworking architecture
BMS Layer
ICIS
NetIS
Common interfaces
EAI/Message bus
Workflow engine
Web services (XML/SOAP)
EAI
SMS
Layer SO FM SA
SLA
Business
EAI/WorkFlow
Process
Manager WM
ADM
TOMS
CNM
MOST
NMS Layer
Web services
ETC
externalized process control
IP-NMS
IP-NMS
IP-NMS
ATM-NMS
PUBNet
FR-NMS
ICIS : Integrated Customer Information Systtem
NetIS : Network Information System
SO : Service Ordeing System
SA : Service Assurance System
SLA : SLA Management System
ADM : Access Domain Manager
WM : Workforce Management System
TOMS : Telecom Outside plant Management System
CNM : Customer Network Management System
MOST : Transmission NMS
IP-NMS : Internet(Kornat) NMS
ATM-NMS : ATM NMS
PUBNet : Goverment Internet NMS
FR-NMS : Frame Relay NMS

11. Concluding 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.

12. Next generation is just around the corner.
Now is the right time to start the development
of a New (next generation) OSS.