Transcript 망관리 기술 발전 방향

On the Evolving
IP-Based Systems and
Service Management
December 12, 2000
Jong-Tae Park
School of Electronic and Electrical Engineering
Kyungpook National University, KOREA
Tel: +82-53-950-5543
Fax: +82-53-950-5505
E-mail: [email protected]
http://ain.knu.ac.kr/professor
2
KNU AIN Lab.
KNOM Tutorial 2000
Outline









Communication,Network and Service Evolution
Network and Service Management Driving Force
Evolution of Management Technologies
Comparison of Management Technologies
Management and Control: Integration?
IP QoS Management
Internet Application Service Management
Challenges in IP-Based Cyber Space Management
Conclusion
3
KNOM Tutorial 2000
Communication, Network and
Service Evolution
 Broadband Access/Backbone Network
Broadband Wireline Network
ATM (hundreds Mbps)
DWDM (thousands Gbps)
Broadband Wireless Network
IMT-2000 (144K/384K/2Mbps)
Next generation wireless network
(hundreds Mbps)
 IP-based Information Infrastructure
 Wireless Internet
 Internet2, NGI
 IP over SONET, IP over DWDM
 IPv6, Intserv/RSVP, Diffserv, MPLS
KNU AIN Lab.
 IP-based Application Services (IP-based Cyber Space)
 Wireless Internet Application
 VoIP, E-Commerce, Application Hosting
SMART
Welcome to
SMART PDA
KNU AIN Lab.
KNOM Tutorial 2000
4
Internet and Mobile Telephone
Users
Internet Users
Mobile Telephone Users
Wireless Internet Users
Users (Millions)
Users (Millions)
900
800
700
600
500
400
300
200
100
0
500
400
300
200
100
1997
1998
1999
2000
2001
2002
0
Year
1997 1998 1999 2000 2001 2002 2003
Year
Source : IDC
Source :ARC
5
Service Evolution:
KNOM Tutorial 2000
Emergence of IP-based Global Cyber Space
 Application Outsourcing


Oracle/BOL, MS, Sun-Netscape, Citrix, InteQ, etc.
ASP, EC hosting, Web Hosting
 Pervasive Computing

IMT-2000 Virtual Home Environment
 E-commerce

ATG/Dynamo, BEA/WebLogic, Sun-Netscape/iPlanet, Blue Martini, etc.
 Cyber University
 Cyber Anything
KNU AIN Lab.

Hospital, Bank, etc.
6
KNU AIN Lab.
KNOM Tutorial 2000
Network and Service
Management Driving Force
How can we manage
new IP-based space ?
OLD Telephone Propeller
NEW IP Infrastructure JET
KNU AIN Lab.
1
0
2
3
4
5
6
7
8
Business Process
SLA/SLM
Enterprise
Application
System
Traffic
Network
Tech
KNOM Tutorial 2000
7
Evolution of Network & Service
Management Paradigm
1975 1990 1991 1992 1994 1996 1998 2000
1980
1990
2000
BM
Management
KNOM Tutorial 2000
8
Evolution of
Management Technologies
SM
NM
TMN/CMIP
SNMP
Proprietary
CIM
DMI
DEN
LDAP
WBEM COPS
JMX PBNM
?
Distributed
Computing
Technology
KNU AIN Lab.
EM
Web
Java
ActiveX
XML
WAP
WML
Client/
Server
CORBA
DCOM
9
KNOM Tutorial 2000
KNU AIN Lab.
Comparison of
Management Technologies
Information
Model
Protocol
Func./Service
Org.
Year
SNMP
SMI
GET, SET,
TRAP ...
Internet
Management
IETF
1998
(ver. 3)
CMIP
GDMO
M-GET, M-SET,
M-ACTION,
M-CREATE ...
Telecomm.
Management
ISO/ITU
1991
(X.710)
COPS
SoIP
(  SMIv2)
REQ, DEC, RPT,
DRQ, SSQ.. (TCP)
IETF
1999. 7
(Draft 07)
WBEM
CIM
COM/DCOM,
SNMP,DMI,Win32
Policy
Information
Exchange
WQL, MMC,
WSH, Active
Directory
DMTF
1998
JMX
MBean
Mgmt. API
Java
Community
Process
1999. 8
(Draft 2.0)
LDAP
X.500
XMP
Directory
IETF
1997
(ver. 3)
XOM
Java API
SNMP, LDAP,
TMN, CIM interface
Search, Add, Delete,
Modify
SNMP, CMIS
Interface
Integrated
mgmt. API
Open Group
1996
DMI
MIF
RPC
Desktop
Management
DMTF
1998. 6
(ver. 2.0s)
PBNM
DEN
COPS/LDAP
Policy Based
Management
DMTF
1999
TMN/CMIP
(OSI)
IN SS#7
RSVP
SNMP
(TCP/IP, OSI)
WBEM, JMX, DMI
(TCP/IP)
TINA
(Control + Management)
Security
(IPSec, TLS, SSL, etc)
Naming/Directory(X.500/DAP, HLR, VLR)
DEN/LDAP
(CIM+X.500+Net. Ext.)
Information Model
(GDMO, SMI, MIB, PIB, MIF, CIM/XML, DEN, WML, Private)
KNU AIN Lab.
COPS
Mobile IP
Distributed Processing/Integration
(CORBA, DCOM)
Control (Admission/Connection/Mobility/QoS)
Management (FCAPS)
10
KNOM Tutorial 2000
Management and Control :
Integration?
IP-Based
Service Management
12
KNOM Tutorial 2000
What is Service Management ?
 Service

Means almost anything, depending on who is using the words
 Telco world : communication services ?
 Internet world : information services ?
 Service Management
KNU AIN Lab.

Refers to the set of processes and activities necessary to deliver communication or
information services to customers and operate them in a way that meets quality
and cost objectives
• Service creation
• Order handling
• Customer administration
• Marketing
• Problem handling
• Billing, and so on
 The key goals are to improve customer service, reduce cost, and shorten time to
market.
13
KNOM Tutorial 2000
Customer Focus
 Service quality is “number one” buying criterion for
customers buying data network services
 As network applications consolidate onto managed high
speed services, customer risk increases and greater
service level assurance become more important
 Customers don’t want refunds ia service level agreements,
they want quality assurance
KNU AIN Lab.
 Customers don’t trust Service Providers

The birth of SLA as a contract between customer and service provider
14
KNOM Tutorial 2000
Service Management
Requirements
End-User Requirements
Clear and Concise Information
 Technology Independent
 Predictable
 Measurable
 Accurate
 Easy to understand
 Applicable
Type of Information Required
KNU AIN Lab.
Service Provider Requirements
 Availability
 Utilization
 Loss
 Latency
 MTTR(Mean Time To Repair)
 MTBF(Mean Time Between Failures)
 Technologically Feasible Solution
 Highly Scalable
 Secure
 Manageable
 Extensible
 Marketable
 ROI(Return On Invest)
15
KNOM Tutorial 2000
Service Management Challenges
 Networks are multi-vendor environments made up of
different types of equipment with different types of
statistics
 True end-to-end statistics are difficult to measure and
correlate
KNU AIN Lab.
 Statistics collection systems are designed for service
providers requirements and not for the end-user
 Service Management technologies are now new and
complicated to deploy
16
KNOM Tutorial 2000
IP QoS Management
 QoS Framework





Integrated Services (Intserv) and RSVP
• Distinction of end to end application level traffic flow
Differentiated Services (Diffserv)
• Distinction of aggregated traffic flow in the core network
IntServ/RSVP and Diffserv Complement
• IntServ/RSVP at edges
• Diffserv in network
Multi-Protocol Label Switching(MPLS)
• Using a label-based forwarding paradigm in conjunction with layer-3 routing
Subnet Bandwidth Management (SBM)
 QoS Management Mechanisms

KNU AIN Lab.





Policies (PBNM)
Admission Control
Packet Classification/Marking
Scheduling/Queuing
Congestion Control
Signaling Protocols
17
KNOM Tutorial 2000
End-to-end IP QoS Provision and
Management
PBNM is a solution?
Customer A
Customer B
SLA contract/management
Service Providers
Mark with
Diff-Serv ?
KNU AIN Lab.
Engineer with
MPLS ?
CPE
EDGE
RSVP-enabled Qos
CORE
Diffserv “Signaled” QoS
EDGE
CPE
RSVP-enabled Qos
KNOM Tutorial 2000
18
Internet Application Service
Management
 No Standards for Internet Application Service Management

Just application service specific management solution at present (application
provision solution + management solution (API, log))
 General solution in future ???
 Management Requirements

Web management
 Service specific management
 SLA/QoS management
 Server/clustering/session management & load balancing
 Security management
 Billing, account management
KNU AIN Lab.
Contents
management
 Client/server application management
Transaction management
(FCAPS)
CRM(Customer Relationship Mgmt.)/eCRM
 Data storage management
ERP(Enterprise Resource Planning)
EC Management
ASP Management
KNOM Tutorial 2000
19
E-Business/E-Commerce
Management
 E-Business needs automated management




CRM (Customer Relationship Management)
ASP Management
Transaction Management
Security Management
 Required Capabilities




KNU AIN Lab.


Event Monitoring and Management
Availability Management
Reporting and Analysis
User Experience
Site Integrity
Business System Realm
KNOM Tutorial 2000
20
Challenges in IP-Based Cyber
Space Management
 How to cope with the technological evolution cycle?
 How to provide end-to-end QoS management across
global heterogeneous space?
 How to provide billing and accounting?
 How to provide fast service delivery?
 How to manage and control various Internet application
services (VoIP, EC, ASP, Internet Broadcasting, etc.)?
 How to integrate and implement?
KNU AIN Lab.

Information Model
 Functionality/Performance
 Extensibility/Scalability

Reliability

Granularity

Interoperability/Integration
21
KNOM Tutorial 2000
KNU AIN Lab.
Merging the Voice and Data
Worlds
Voice World
• Circuit switching
• TDM transport
• High reliability & security
• Limited programmability
• Time sensitive billing
• Slow service set-up
• Dumb phones
• Telephony services
Data World
• Sing infrastructure
• Packet switching
• Intelligence throughout
• High reliability, security &
controlled QoS
• Innovative business to
business applications
• High value service
bundles
• Instant self-provisioning
• Smart appliances
• Packet switching
• Intelligence at edge
• Lower reliability &
security
• Innovation in PC and
enterprise applications
• Flat rate or bandwidth
pricing
• Hard to achieve equality
• Smart PCs
22
KNOM Tutorial 2000
Drivers for a New Management, Control,
and Signaling Infrastructure
Evolution of
Intelligence in the
Network
Support for
Advanced Services
Regulatory
Issues
KNU AIN Lab.
Globalization
Routing, Switching, &
Transport Evolution
(e.g., IP, ATM, etc.)
Signaling Network
Evolution
New
Control,
Management,
And Signaling
Infrastructure
Support for
Middleware
Services
Operations
Evolution
Convergence of
Telephony and
Computing Worlds
Intranets, Extranets,
and Internet
23
KNOM Tutorial 2000
Conclusion
 Next generation management technologies should effectively manage
the legacy services as well as new IT services

Integration of Control and Management
• Web, CORBA, DEN, SNMP, CMIP, RSVP,IN, etc.

QoS/SLA Management
• Management Architecture + Protocol Extension

New Internet Application Service Management
• E/M-Commerce management
• Replaceability, Scalability, Billing and Customer Care
• Security, Transaction, Contents, CRM/eCRM, ERP, etc.
KNU AIN Lab.
 Challenges in IP-based Cyber Space Management
Service Delivery
Implementation
Integration
Evolution of Mgmt. Tech.