1. Future Direction of Network and Service Management
Yoon-Hak Bang
Vice President
KT Network Technology Laboratory
APNOMS 2006

2. QoS DiffServ IPv6 The Gap Researcher’s Viewpoint
Network Managers, Field Engineers’ view point
NGOSS
NGN
FMC
NGOSS
QoS
3G/4G
DiffServ
IPv6
monitoring
& control
Network
Automation
Customer
Satisfaction
Network
Ease of use
Network

3. Overview The Need for More Advanced Network Management
Functions from Network Managers and Field Engineers
Customer-focused Network and Service Management
Future Direction of Network
Management for Customer Value Innovation

4. The direction of Network Management
The Network Evolution
ISDN  ATM  Broadband IP  MPLS  NGN…
Reality
Huge investment to replace current networks
Nothing is perfect
e.g., FTTH and installation problem
Trade off between quality and economic efficiency
NSP invests in new networks to protect customer churn and win its competitors with a little better quality
Multiple transport and access networks, and many NMSs

5. The direction of Network Management
The Purpose of Network Management
Maximize use of resources and improve QoS level with least amount of resources
Real-time provisioning, auto-configuration, plug and play
Self-healing, self-management
But, a long way to go
The Realistic Direction
Economical development of Management Technology according to the introduction of new network technologies
Fierce competition  Transition of view point from NSP to Customers
Management support and automation for the real-field workers
And, to achieve the original purpose of Network Management

6. Voice of Network Managers
Too many OSSs and NMSs
The number of systems are
still increasing
Some needs manual data
input
Data and format inconsistency
Takes long time to prepare
statistical reports
lack of useful information for
preventive maintenance
IP- NMS
Electric Power
Management System
Transmission NMS
Service
Planning
Management
Network

7. Voice of Network Managers
Integrated Management of Heterogeneous Networks
Internet, ATM, Transmission N/W, Electric Power, etc.
Management systems are dedicated to specific domains
There are too many PC monitors.
One operator manages many networks and equipments
Unified and
Integrated View
Integrated NMS
Data Abstraction
ATM-NMS
IP-NMS
Power
Management
ATM-NMS
IP-NMS
Power
Management
CMIP
SNMP
serial
CMIP
SNMP
serial
ATM
switches
Internet
Power
ATM
switches
Internet
Power

8. Voice of Network Managers
Process of network Fault management
Monitor
Start Y
End N
Alarm report
Send short msg to
field engineers
Action to ensure customer
satisfaction (e,g,. Rerouting)
Service affected
Verify fault is eliminated
trivial
Inform the result to SA
Record events and
analyze fault management
performance
Daily Reports
Daily Work Log 2. Fault Analysis Report Traffic Analysis Report 4. Syslog Analysis
Monthly Report 1. Monthly Network Fault Analysis report 2. Monthly Traffic Analysis Report
Every Quarter : Network and Customer Information
1. Network Topology Map 2. Customer and Access Network Information 3. Server Information
Daily
and
monthly
reports
Diagnosis
Develop and implement
Correction plan
-series of actions
- Dispatch technicians
EMS
IP- NMS

9. Voice of Network Managers
Business Process Management
IP- NMS
Transmission NMS
Electric Power
Management System
SOA
Work
Flow
Engine
SOA
Electric Power
Management System
IP- NMS
Transmission NMS

10. Voice of Network Field Engineers
Remote Management
Support of Configuration and Automatic Diagnosis
I have no more IP address
Private IP address
Many IP address allocated
NAT
L3 Switch
Backbone
Public IP address
L2 Switch
HANSHIN_APT#sh arp
Protocol Address Age (min) Hardware Addr Type Interface
Internet Incomplete ARPA
Internet b.6aa2.209e ARPA Vlan1
Internet ecb.fb51 ARPA Vlan1
Internet b.6aa2.209e ARPA Vlan1
Internet ad3.06ee ARPA Vlan1
Internet ad ARPA Vlan1
Internet b.6aa2.209e ARPA Vlan1
Internet b.6aa2.209e ARPA Vlan1
Internet e0.98a8.7e98 ARPA Vlan1
Internet b.6aa2.209e ARPA Vlan1
Internet b.6aa2.209e ARPA Vlan1
Internet b.6aa2.209e ARPA Vlan1
Public IP address
IP address not allocated

11. Evolution of Network Management Paradigm
Paradigm shift of network management
Currently : From the view point of Network Service Provider
Network, Servers and Customer equipments are managed independently
Some Inter-domain Manager provide total network view, but do not provide end-to-end service quality information
From now on : Customer focused, End-to-end Management
Integrated management of whole network and resources
Service quality monitoring and control of the individual service session
Analysis and action on the root cause which affects service quality
SEQUENT
SEQUENT
Web, VoIP, IP-TV, Game, , FTP…

12. Evolution of Network Management
Currently : Visible to its limited management domain only
Fault management :
Used to monitor the domain network status
Diagnosis : Manual job
Traffic management : Volume traffic analysis and capacity planning
Backbone Network Management
Access Network Management
Service Server Management
Home Network Management
SEQUENT
SEQUENT
Web, VoIP, IP-TV, Game, , FTP…

13. Evolution of Network Management
Future : End-to-end visibility
Fault Management : Service Oriented Fault Management
Fault of Access and Backbone Network
Alarm severity proportionally defined to the level of affected services
Fault of Access Network
Provide the affected customer and service information
Fault of Service Servers
Provide the number of affected customers and degradation level of service quality
Minor
Major
Critical
Major
Minor
Portal
L3-SW
L2 S/W
Metro SW
Core router
L3-SW
Server
L3-SW
L2 S/W
Metro SW
Core router

14. Evolution of Network Management
Future :
Traffic Management : from a customer experience perspective
Application traffic analysis  packet capture, flow analysis
Analysis of how interacting services affect each other
<Case> A company is connected to Internet with 10Mbps leased line. When n people are using VoIP phone, m people access IP-TV and the performance of both service are degraded.
Q : Who is responsible for the degradation of quality?
A : The service provider who sold VoIP and IP-TV service
Q : Among the n VoIP and m IP-TV channels, which one and how the quality is degraded?
A: ???
Q : If some packets are dropped by priority control, how can the service provider explain it to customers?
100Mbps
Packet drop, delay, QoS degradation

15. Evolution of Network & Service Management
Current
Order decomposition
Siloed OSSs
Service configuration
Service order
design, resource allocation, activation
Customer DB
Customer
Center
design, resource allocation, activation
End-to-end test
design, resource allocation, activation
NOK OK
Request for recovery/reconfiguration
Current service provisioning process
Reactive and slow-working process
No centralized, or end-to-end view that provides the service’s perspective of the network resources in use and the source of any problems

16. Evolution of Network & Service Management
Future
Service define
Network Configuration
Integrated NMS
Service order
Customer
Center
design, resource allocation, activation
Customer test
Customer DB
End-to-end Network View
Future service provisioning process
Real-time process
Service is defined according to the contracted QoS and rate
NMS validates the network capability, and configure an end-to-end connection.
 NMS manages physical and logical resource information
 PBNM can reduce human intervention

17. Evolution of Network & Service Management
Future
Personal
Portal
User Profile
Customer Self-control
Billing
Policy
Server
Service Profile
Customer
control
Resource
NMS
ISP
Customer
IP/MPLS
Access Nodes
Service control
Customer controls QoS parameters of provisioned service
BoD, Voice Mail, Parental Care, Presence and Location, Context-aware Services etc.

18. Major Functions of Future NMS
Integrated Management
Application Traffic Monitoring
응용서버
SEQUENT
Anomaly Detection
SEQUENT
Workflow Management
Consolidated
Resource DB
Real-time Provisioning
& Self-control
Network Diagnosis
& configuration …

19. Summary Realization of Integrated Network Management
Support of Workflow Management
Support of Configuration and Automatic Diagnosis
Real-time Provisioning and Self-control
Support of Network Managers and
Field Engineers for OPEX Reduction &
Customer Value Innovation

20. Dream and Real World