labDTT/BUTE, Ericsson Hungary Ltd., KOVAX’95 Ltd.
Voice over IP (VoIP) Management
IKTA5-092/2002March 2003 – April 2004
byDepartment of Telecommunications and TelematicsBudapest University of Technology and Economics
Ericsson Hungary Ltd. andKOVAX’95 Ltd.
http://w3.ttt.bme.hu/ikta-voip
May, 2003 IKTA5-092/2002 ~ http://w3.ttt.bme.hu/ikta-voip 2
Dept. of Telecom. & Telematics/BUTE,Ericsson Hungary Ltd.,
KOVAX’95 Ltd.
1. The ConsortiumCoordinator:
Department of Telecommunications and Telematics,Budapest University of Technology and Economics, Budapest
Home page: http://www.ttt.bme.hu Project leader: Dr. Tamás HenkTeam leader: Róbert Szabó, Ph.D.
Consortium member(s):Ericsson Telecommunications Ltd., Budapest
Home page: http://www.ericsson.huTeam leader: Gábor Magyar, Ph.D.
KOVAX’95 Ltd.Team leader: József Kovács
May, 2003 IKTA5-092/2002 ~ http://w3.ttt.bme.hu/ikta-voip 3
Dept. of Telecom. & Telematics/BUTE,Ericsson Hungary Ltd.,
KOVAX’95 Ltd.
2. BackgroundConvergence of traditional and TCP/IP systems
Integrated voice and data networksCost savingValue added servicesMobile communication ...
TCP/IP systemsPlanning
Problematic: best-effort approach, without service guarantees
Operation and maintenance (OAM)Service level monitoring is missingLack of management systemsLack of high availability
May, 2003 IKTA5-092/2002 ~ http://w3.ttt.bme.hu/ikta-voip 4
Dept. of Telecom. & Telematics/BUTE,Ericsson Hungary Ltd.,
KOVAX’95 Ltd.
3. Project GoalsResearch and development of a VoIP management system with
FAULT management
PERFORMANCE management and
CONFIGURATION and OPTIMIZATION
for integrated packet networks
May, 2003 IKTA5-092/2002 ~ http://w3.ttt.bme.hu/ikta-voip 5
Dept. of Telecom. & Telematics/BUTE,Ericsson Hungary Ltd.,
KOVAX’95 Ltd.
3.1.1 Fault ManagementObjectives:
Semi automated fault discoverySemi automated fault recoveryFault trackingDecisionmakingsupport
Lotus Notes
Telephone Direction Web form
Database
Event and workflow handling
Fault Repair
Analysis
Knowledge-base,decision support
Fault detection
Inventory
HelpDesk
Network device rec.
Change Management
May, 2003 IKTA5-092/2002 ~ http://w3.ttt.bme.hu/ikta-voip 6
Dept. of Telecom. & Telematics/BUTE,Ericsson Hungary Ltd.,
KOVAX’95 Ltd.
3.1.2 Fault ManagementAlgorithm based fault-recovery mechanism
Detection -> Analysis -> Solution proposalValue added partIntelligent root-cause analysisDevice-close solution proposal (based on knowledge-base of the managed devices
AnalysisKnowledge-base,decision support
Fault detection
Network
May, 2003 IKTA5-092/2002 ~ http://w3.ttt.bme.hu/ikta-voip 7
Dept. of Telecom. & Telematics/BUTE,Ericsson Hungary Ltd.,
KOVAX’95 Ltd.
3.2.1 Performance ManagementObjectives
Connection admission controlTraffic engineering and traffic management Co-dec selection and traffic aggregation
Centralized resource management architecture:
Bandwidth Broker 2
Gateway
Database
Connection admissioncontrol
Inter-domaincommunication
Interface
Interface
Load balancing
QoS routing
Query of parameters
Interface
Interface
Radius server
Bandwidth Broker 1
May, 2003 IKTA5-092/2002 ~ http://w3.ttt.bme.hu/ikta-voip 8
Dept. of Telecom. & Telematics/BUTE,Ericsson Hungary Ltd.,
KOVAX’95 Ltd.
3.2.2 Performance Management – Project flowchart
Trace files and statistics
Parametrization
Code Code
Code and doc.
BB prototype
BBspecification
VoIP traffic measurement QoS Routing and LB Inter-domain cont.
Simulations Simulations
Performance analysis
Analyzis and development of CAC algorithms
Preparing traffic generator and analyzis of voice quality
VoIP traffic modeling
May, 2003 IKTA5-092/2002 ~ http://w3.ttt.bme.hu/ikta-voip 9
Dept. of Telecom. & Telematics/BUTE,Ericsson Hungary Ltd.,
KOVAX’95 Ltd.
3.3 Configuration and OptimizationObjective: Resource management and optimization
Optimal aggregation of VoIP trafficVPN for VoIP
Network DesignDimensioning
PSTN
PSTN
PSTN
PSTN
NETWORK COST and RESOURCE UTILIZATION(with and without optimization)
0
50
100
time
%
Cost (without)Cost (with)
Utilization (without)Utilization (with)
Optimization Protection
May, 2003 IKTA5-092/2002 ~ http://w3.ttt.bme.hu/ikta-voip 10
Dept. of Telecom. & Telematics/BUTE,Ericsson Hungary Ltd.,
KOVAX’95 Ltd.
4. Expected ResultsScientific publicationsInfluence on the educationMethods and algorithmsKnowledge bases; decision supportQuality of service improvementFault management prototypeBandwidth broker research prototypeAlgorithm repository and GUIs
May, 2003 IKTA5-092/2002 ~ http://w3.ttt.bme.hu/ikta-voip 11
Dept. of Telecom. & Telematics/BUTE,Ericsson Hungary Ltd.,
KOVAX’95 Ltd.
5.1 Partner: DTT/BUTEDepartment of Telecom. & Telematics,
Budapest University of Techn. & EconomicsEstablished in 1991High Speed Networks Laboratory
Cross departments cooperation11 research groups
Traffic modeling and performanceNetwork optimizationMultimedia systems and servicesQuality of serviceMobile communicationsSecurity, protocol design and testing, etc...
May, 2003 IKTA5-092/2002 ~ http://w3.ttt.bme.hu/ikta-voip 12
Dept. of Telecom. & Telematics/BUTE,Ericsson Hungary Ltd.,
KOVAX’95 Ltd.
5.2 Partner: Ericsson Hungary Ltd.Research @ Traffic Lab
Large scale IP network configuration managementNetwork dimensioningNetwork planning and Traffic engineeringTraffic modelingIP mobilityReal-time routingMeasurement based admission controlNetwork performance measurements
May, 2003 IKTA5-092/2002 ~ http://w3.ttt.bme.hu/ikta-voip 13
Dept. of Telecom. & Telematics/BUTE,Ericsson Hungary Ltd.,
KOVAX’95 Ltd.
Partner (3/3): KOVAX’95 Ltd. Established in 1995Objectives
To realize a competitive development team able to handle mammoth projects
Strength Development of high performance management systems
ReferencesMatáv, a Hungarian Teleco., help desk and change management system
May, 2003 IKTA5-092/2002 ~ http://w3.ttt.bme.hu/ikta-voip 14
Dept. of Telecom. & Telematics/BUTE,Ericsson Hungary Ltd.,
KOVAX’95 Ltd.
SummaryProject: IKTA5-092/2002
Voice over IP (VoIP) ManagementSchedule: March 2003 – April 2004Consortium:
Dept. of Telecom. & Telematics, BUTEEricsson Hungary Ltd.KOVAX’95 Ltd.
Contact us:http://w3.ttt.bme.hu/ikta-voipDr. Tamás Henk <[email protected]>H-1117 Budapest, Magyar Tudósok krt. 2. Tel.: (36-1)-463-4187
