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NOBEL WP2 Meeting Activity A.2.2. Krzysztof Wajda, Krzysztof Zaraska AGH – UST, Department of Telecommunications e-mail: wajda @ kt.agh.edu.pl,kzaraska@uci.agh.edu .pl. WP2 : Survivability, traffic engineering, techno- and socio-economic studies and evaluations.
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NOBEL WP2 MeetingActivity A.2.2 Krzysztof Wajda, Krzysztof Zaraska AGH – UST, Department of Telecommunications e-mail: wajda@kt.agh.edu.pl,kzaraska@uci.agh.edu.pl
WP2: Survivability, traffic engineering, techno- and socio-economic studies and evaluations AGH University of Science and Technology • A2.1 - Investigation of advanced survivability concepts for multi-service / multi-layer / multi-domain networks • A2.2 - Study of traffic engineering concepts for end-to-end broadband services for all • A2.3 - Techno-economic analysis of network solutions and evaluation of their economic viability • A2.4 - Socio-economic feasibility studies for investigating and assessing new social and economic opportunities • A2.5 - Definition and assessment of different business models for the solutions proposed by NOBEL
WP2 - A2.2: Study of traffic engineering concepts for end-to-end broadband services for all Activity objectives: • Measurement, characterization and modelling • Solutions to optimise utilisation of network resources • New methods for route management (intra- and inter-domain) • Develop accurate statistical models for evaluating the impact on QoS AGH University of Science and Technology
WP2 - A2.2 – AGH Task 1:Traffic measurement and modellingMeasurement platform • LAN of DoT AGH includes about 200 PCs and servers split into 2 subnets (staff and student) – 149.156.114.x • Uplink to the campus done previously by ATM, now by GigaEthernet • Monitoring/measurement of traffic done thanks to uplink interface mirroring C2924XL-EN C2948G-L3 PIX Cisco 36xx FEC Ethernet 100 Ethernet 100 Campus Network ATM FEC FEC Mirrored link Mirroring link Monitored hosts Measurement PC AGH University of Science and Technology mirrored link
WP2 - A2.2 – AGH Task 1:Traffic measurement and modellingCaptured information ·Timestamp (instant of frame end in microsec), ·Ethernet frame type and length, ·IP protocol version (IPv4 or IPv6), ·IPv4 source and destination addresses, ·Layer 4 protocol (i.e. TCP, UDP, ICMP), ·Layer 4 port numbers (for TCP and UDP traffic), ·TCP sequence numbers (for TCP traffic). AGH University of Science and Technology
WP2 - A2.2 – AGH Task 1:Traffic measurement and modellingMeasurement plans • Searching statistical properties of total traffic, • Characterization of frequently used service types, such as http, ftp, telnet, etc., • Testing the selfsimilarity of traffic (estimation of Hurst parameter), • Testing traffic symmetry (uplink/downlink), • Evolution of the traffic properties over time, e.g. daily variations, and seasonal trends. AGH University of Science and Technology
WP2 - A2.2 – AGH Task 1:Traffic measurement and modellingAn example: total, in/out traffic downlink(in) uplink(out) AGH University of Science and Technology
WP2 - A2.2 – AGH Task 1:Traffic measurement and modelling Interarrival times: total, in/out downlink(in) uplink(out) AGH University of Science and Technology
WP2 - A2.2 – AGH Task 1:Traffic measurement and modelling Distribution of packet sizes: total, in/out downlink(in) uplink(out) AGH University of Science and Technology
WP2 - A2.2 – AGH Task 1:Traffic measurement and modelling Estimation of Hurst parameter AGH University of Science and Technology A-V method VTP method they give different results!
WP2 - A2.2 – AGH Task 1:Traffic measurement and modellingFurther plans • Searching statistical properties of total traffic, • On-line estimation of Hurst parameter, • Analysis of service profiles (amount of traffic sent), session/connection charasteristics, • Analysis of traffic geographical distribution. AGH University of Science and Technology