Post on 18-Dec-2015
transcript
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: park@ee.knu.ac.kr
http://ain.knu.ac.kr/professor
On the Evolving IP-Based Systems and Service Management
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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
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Communication, Network and Service Evolution
Broadband Access/Backbone Network
ATM (hundreds Mbps)DWDM (thousands Gbps)
Broadband Wireline Network
IMT-2000 (144K/384K/2Mbps)Next generation wireless network(hundreds Mbps)
Broadband Wireless NetworkSMART
Welcome toSMART PDA
Wireless Internet IP over SONET, IP over DWDM
Internet2, NGI IPv6, Intserv/RSVP, Diffserv, MPLS
IP-based Information Infrastructure
IP-based Application Services (IP-based Cyber Space)
Wireless Internet Application
VoIP, E-Commerce, Application Hosting
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Internet and Mobile Telephone Users
Source : IDC
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100
200
300
400
500
1997 1998 1999 2000 2001 2002 20030
100200300400500600700800900
1997 1998 1999 2000 2001 2002
Source :ARC
Year Year
Users (Millions) Users (Millions)
Mobile Telephone UsersInternet Users
Wireless Internet Users
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Service Evolution: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
Hospital, Bank, etc.
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Network and Service Management Driving Force
How can we manage new IP-based space ?
OLD Telephone Propeller NEW IP Infrastructure JET
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Evolution of Network & Service Management Paradigm
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1975 1990 1991 1992 1994 1996 1998 2000
Tec
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Net
wo
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ffic Sys
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Ap
pli
cati
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En
terp
rise
SL
A/S
LM
Bu
sin
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Pro
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Evolution of Management Technologies
1980 1990 2000
BM
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NM
EM
Man
agem
ent
Just One
Mixture or
Integrated
?
TMN/CMIP
SNMP
Proprietary
CIMDMI
WBEMJMX
DENLDAPCOPSPBNM
Dis
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Web Java ActiveX
CORBA DCOM
WAP WMLXML
Client/Server
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Comparison of Management Technologies
InformationModel Protocol Func./Service Org. Year
SNMP SMI GET, SET, TRAP ...
InternetManagement IETF 1998
(ver. 3)
CMIP GDMOM-GET, M-SET,
M-ACTION,M-CREATE ...
Telecomm. Management ISO/ITU 1991
(X.710)
COPS SoIP( SMIv2)
REQ, DEC, RPT,DRQ, SSQ.. (TCP)
Policy Information Exchange
IETF 1999. 7(Draft 07)
WBEM CIM COM/DCOM,SNMP,DMI,Win32
WQL, MMC, WSH, Active
Directory DMTF 1998
JMX MBeanJava API
SNMP, LDAP,TMN, CIM interface
Mgmt. APIJava
Community Process
1999. 8(Draft 2.0)
LDAP X.500Search, Add,
Delete,Modify
Directory IETF 1997(ver. 3)
XMP XOM SNMP, CMISInterface
Integrated mgmt. API Open Group 1996
DMI MIF RPC Desktop Management DMTF
1998. 6(ver. 2.0s)
PBNM DEN COPS/LDAP Policy BasedManagement DMTF 1999
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Management and Control : Integration?
TMN/CMIP(OSI)
SNMP(TCP/IP, OSI)
WBEM, JMX, DMI(TCP/IP)
Control (Admission/Connection/Mobility/QoS)
Man
ag
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en
t (F
CA
PS
)
IN SS#7
RSVP
TINA(Control + Management)
Security(IPSec, TLS, SSL, etc)
Naming/Directory(X.500/DAP, HLR, VLR)
Information Model(GDMO, SMI, MIB, PIB, MIF, CIM/XML, DEN, WML, Private)
Distributed Processing/Integration(CORBA, DCOM)
COPS
Mobile IP
DEN/LDAP(CIM+X.500+Net. Ext.)
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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 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.
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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
Customers don’t trust Service Providers The birth of SLA as a contract between customer and service provider
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Service Management Requirements
Technology Independent Predictable Measurable Accurate Easy to understand Applicable
Clear and Concise Information
Availability Utilization Loss Latency MTTR(Mean Time To Repair) MTBF(Mean Time Between Failures)
Type of Information Required
Technologically Feasible Solution
Highly Scalable
Secure
Manageable
Extensible
Marketable
ROI(Return On Invest)
End-User Requirements Service Provider Requirements
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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
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
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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 Policies (PBNM) Admission Control Packet Classification/Marking Scheduling/Queuing Congestion Control Signaling Protocols
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End-to-end IP QoS Provision and Management
Customer A
Mark with Diff-Serv ?
Engineer with MPLS ?
SLA contract/management
CPE EDGE EDGE CPECORE
Service Providers
Customer BPBNM is a solution?
RSVP-enabled Qos RSVP-enabled QosDiffserv “Signaled” QoS
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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
Contents managementTransaction managementCRM(Customer Relationship Mgmt.)/eCRMERP(Enterprise Resource Planning)
Client/server application management (FCAPS) Data storage management
EC Management ASP Management
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E-Business/E-Commerce Management
E-Business needs automated management CRM (Customer Relationship Management) ASP Management Transaction Management Security Management
Required Capabilities Event Monitoring and Management Availability Management Reporting and Analysis User Experience Site Integrity Business System Realm
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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?
Information Model Functionality/Performance Extensibility/Scalability
Reliability Granularity Interoperability/Integration
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Merging the Voice and Data Worlds
Data WorldVoice World
• Circuit switching
• TDM transport
• High reliability & security
• Limited programmability
• Time sensitive billing
• Slow service set-up
• Dumb phones
• Telephony services
• 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
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Drivers for a New Management, Control, and Signaling Infrastructure
NewControl,
Management,And SignalingInfrastructure
Support forAdvanced Services Signaling Network
Evolution
Support forMiddleware
Services
OperationsEvolution
Convergence of Telephony and
Computing Worlds
Intranets, Extranets, and
Internet
Routing, Switching, & Transport Evolution(e.g., IP, ATM, etc.)
Globalization
Regulatory Issues
Evolution of Intelligence in the
Network
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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.
Challenges in IP-based Cyber Space Management
Evolution of Mgmt. Tech.
IntegrationImplementation
Service Delivery