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APNOMS 2003
A New Operations Support System
Architecture for Broadband IP Networks
Jong-Rak Lee
[email protected]
October 2003
KT
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
KT Operations Support Systems Lab.
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KT
IP network is evolving so fast …
DU/IS
DN
PSTN,
ISDN
xDSL
RAS
NAS
DSLAM
K-LL
AP-Hub
GSR
GES
Router
KIX
KORNET
Core
M-Ethernet
Best Effort
S/W
QoS/Security
MPLS
IP xDSL
M-Ethernet S/W
DiffServ

Core : faster, traffic engineered

Edge : focus on QoS management
KT Operations Support Systems Lab.
IPsec
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KT
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
Billing
Inventory
query
receive
order
order
processing
order
processing
Customer
Self-control
user
profile
request
Self-control
Current
provisioning
Customer
Internet
KT Operations Support Systems Lab.
provisioning
real-time
configuration
Inventory
Billing
resource
allocated
usage count
New
ISP
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Managing new IP networks (2)

KT
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.
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KT
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
SA 1.0
SO 1.0
DELMONS
SML
NML
RNMS
NetSolver
CTMS
ITOS
K
O
S
M
O
S
ANSWERS
TIMS
RIMS
DSLAM
-EMS
WLL
-EMS
FM 1.0
CNM
HiTS
HiNet
NMS
PubNet
NMS
ATM
NMS
NesPot
NMS
NAS
NMS
COLAN
NMS
MOST
Disaster
Mgmt
EOCMS
EML
EMOS
S
I
G
N
O
S
S
N
M
S
NEL
ELITE
TEMS
DXC-CON
DMAS
ACOAM
PMS
CATMS
IPxDSL
NMS
ATM
EMS
COAM
B-DCS NMS
DXC-13 NMS
TOMS
MOAM
PSTN/Power/Env
FLC
-EMS
MASTER
Data
Transmission/LL
Access
<Fig> current major KT OSSs
KT Operations Support Systems Lab.
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KT
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
KT Operations Support Systems Lab.
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KT
New OSS (NeOSS) platform
xDSL Porvisioning OSS
Receive Order
Report
Socket I/F
Receive TT
IP Traffic
Report
Query Information
Resource Alloc
Provision
Leased Line
Porvisioning OSS
Subscriber
Facility
Test
Facility
Metro Ethernet
Management System
GUI
GUI
Status Config
Status Config
DB load
Subscriber
XML/RPC
Management
System
SNMP
…
DB load
SNMP/CLI
Standard GUI /Single sign On
Management Specific
Applications
Work order Configuration
Performance
Processing
Management
Management
TP monitor
Common Applications
DB Loading
Etc.
Network
Network
Mgmt
Topology
Status
Policy
Scheduling
Common DB
Configuration
Common Interfaces
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KT
New OSS (NeOSS) common data model
Legacy OSS A
ABC
SDF
Human error
Data conversion
Integrity
Legacy OSS C
ASDF
check
ㄱㄴㄷ
ㄴㅇㄹ
New OSS A
Legacy OSS B
Common DB
New OSS B
New OSS C
DB mediator
KT Operations Support Systems Lab.
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New OSS (NeOSS) interworking architecture
NetIS
ICIS
BMS Layer

Common interfaces
EAI/Message bus
 Workflow engine
 Web services (XML/SOAP)

EAI
SMS
Layer
SO
Business
Process
Manager
SA
FM
KT
SLA
EAI/WorkFlow
WM
ADM
TOMS
CNM
MOST
NMS Layer
ETC
Web services
externalized
process
control
KT Operations Support Systems Lab.
IP-NMS
IP-NMS
IP-NMS
ATM-NMS
PUBNet
FR-NMS
ICIS : Integrated Customer Information Systtem
TOMS : Telecom Outside plant Management System
NetIS : Network Information System
CNM : Customer Network Management System
SO : Service Ordeing System
MOST : Transmission NMS
SA : Service Assurance System
IP-NMS : Internet(Kornat) NMS
SLA : SLA Management System
ATM-NMS : ATM NMS
ADM : Access Domain Manager
PUBNet : Goverment Internet NMS
WM : Workforce Management System
FR-NMS : Frame Relay NMS
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Concluding remarks
KT
 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.
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KT
 Next generation is just around the corner.
 Now is the right time to start the development
of a New (next generation) OSS.
KT Operations Support Systems Lab.
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