2002 - cesnet

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• Pilot connection of a selected locality through SIP signalling.• Research into the possibilities of implementing new types of services, e.g.,conference calls, IVR, voice mail.The outcome of our efforts will be published in the form of technical reports,magazine articles and presentations during conferences and seminars.120 High-speed National Research Network and its New Applications 2002
9 Quality of Service in HighspeedNetworksThis project deals with theoretical and practical aspects of implementing serviceswith defined quality (Quality of Service, QoS) in high-speed networks.A particular emphasis is on the high performance of the entire network communication,or the end-to-end performance.The project has its own website 12 , where visitors can find articles, presentations,results of experiments and created software. For a summary of the mostimportant project outputs, see below:9.1 QoS Implementation on JuniperRoutersIn the previous work, we have learned about the possibilities of implementingQoS on Cisco routers, on which the CESNET2 network is based. Among othersignificant producers of routers, there is Juniper Networks. Routers producedby this company are used within some backbone lines of the European networkGéant. The Premium IP service is being considered for implementation in theGéant network, in order to provide for priority to certain data packets withrespect to the rest of network traffic. We therefore checked the possibilities ofimplementing QoS on Juniper routers.For the purposes of experimentation, we used M10 type, with a performanceand offer of ports comparable to that of the Cisco 7500 model. All Juniper routershave almost identical hardware architecture and make use of the sameoperating system – JUNOS. We therefore expect that the collected data are alsovalid for other types of routers.We based our experiments on the latest available version of the operating system,JUNOS 5.0. At present, there is a newer version available, offering severalother functions useful for the purpose of QoS implementation. For the experimentconfiguration, see Figure 9.1.We measured the basic characteristics of QoS, i.e., throughput, loss rate, delayand jitter, with the use of the RUDE/CRUDE programs, together with qosplot,which we created during the project.As an example of an evaluated feature, we would like to point out the WRR(Weighted Round Robin) algorithm, used by Juniper routers for the control of12http://www.cesnet.cz/english/project/qosip/High-speed National Research Network and its New Applications 2002121
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2002High-speed NationalResearch Net
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Table of Contents1 Introduction 92
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6.4.3 Support of Special Events. .
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14.3 Cisco ICM Software . . . . . .
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1 IntroductionThe report presented
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2 Brief SummaryThe research plan ti
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men. We designed the basic concept
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2.4 Other ProjectsThe objective of
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3 Operation of CESNET2During 2002,
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Canarie622 MbpsESNET622 MbpsGÉANT/
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central network core routers with t
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The existing logical topology of mu
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The logical core topology anticipat
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Within the informative part, we req
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3.6 Statistical Traffic Analysis3.6
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Figure 3.8: Influence of time step
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Praha-Plzeň, 2.5 GbpsPraha-Ústí
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CESNET2-GÉANT, 1.2 Gbps (october)C
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Part IStrategic Projects
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4 Optical Networks and theirDevelop
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US (TeraGrid with backbone 4 × 10
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ApplicationMiddlewareHigh bandwidth
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4.2.2 User InterfaceSubscribers (me
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ers will move and that other types
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GermanyCheb10 G34 MPlzeňGÉANT 622
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It is also possible to implement th
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Chemical Technology and PASNET, we
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Manufacturerwww.accton.comwww.actio
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particularly based on the fact that
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0101 NRZlaserMach-ZendermodulatorED
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Cisco ONS 15201boosterfiber 130 kmC
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5 IP version 6Further expansion of
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5.2.1 IPv6 Network TopologyFor the
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Missing in this list are especially
Page 69 and 70: 5.2.7 Connecting End Site NetworksI
Page 71 and 72: 5.4 IPv6 User Services and Applicat
Page 73 and 74: sible reprogramming of functions, a
Page 75 and 76: IPBIpb_0HFEHfe_1SORSor_0LUPLup_0RQR
Page 77 and 78: As regards our router on the PC pla
Page 79 and 80: the activities of our project. In 2
Page 81 and 82: 6 Multimedia Transmissions6.1 Objec
Page 83 and 84: scaling is considerably restricted;
Page 85 and 86: Figure 6.1: Modified program for sh
Page 87 and 88: 6.3.5 Direct Support for Pilot Grou
Page 89 and 90: programs which control the integrat
Page 91 and 92: Figure 6.4: Example of broadcast fr
Page 93 and 94: Figure 6.5: Set of tuners and serve
Page 95 and 96: and transfer the solution to an ope
Page 97 and 98: The actual computing capacity of Me
Page 99 and 100: 7.1.2 Information ServicesMetaCentr
Page 101 and 102: Figure 7.1: Grid nodes for SC2002an
Page 103 and 104: (December 2002). This was one of th
Page 105 and 106: the use of 158 processors). When we
Page 107 and 108: 8 Voice Services in CESNET2The proj
Page 109 and 110: Figure 8.1: Number of phone calls i
Page 111 and 112: VoGWs of members involved in the pr
Page 113 and 114: connection and compare the features
Page 115 and 116: • Extensive possibilities for the
Page 117 and 118: H.323 WorldSIP PhoneMS Messengerand
Page 119: ation with students at the Strahov
Page 123 and 124: In addition, Juniper routers make u
Page 125 and 126: We tried to divide the capacity of
Page 127 and 128: low with respect to the capacity of
Page 129 and 130: Figure 9.10: Loss rate on Prague-Po
Page 131 and 132: sendingapplicationTCP senderseqackp
Page 133 and 134: Figure 9.13: Example of a course of
Page 135 and 136: Part IIInternational Projects
Page 137 and 138: 10 GÉANTSince 1996, CESNET has bee
Page 139 and 140: Figure 10.2: Utilization of individ
Page 141 and 142: 11 DataGridSince 2001, our research
Page 143 and 144: Therefore, we organized a meeting w
Page 145 and 146: 12 SCAMPISCAMPI (Scaleable Monitori
Page 147 and 148: 12.3.1 WP0 - Requirement AnalysisTh
Page 149 and 150: 1 6 12 18 24 30requirements analysi
Page 151 and 152: Part IIIOther Projects
Page 153 and 154: 13 Online Education Infrastructurea
Page 155 and 156: 13.1.2 Construction of a Teleinform
Page 157 and 158: with high-capacity disk memories co
Page 159 and 160: If the collaboration of individual
Page 161 and 162: ten, whereas items in the hyperlink
Page 163 and 164: Besides that, we processed some lec
Page 165 and 166: CallManager was designed using open
Page 167 and 168: tre, when we were forced to handle
Page 169 and 170: 15 Intelligent NetFlow AnalyserThe
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In the second half-year, we complet
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15.4 ConclusionDuring 2002, our tea
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• data space consolidation (easy
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ecord size [kB] 256 512 1024 2048 4
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Figure 16.3: Nishan-Linux measureme
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16.3.1 No SecurityThe initiator is
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vices. These features mainly involv
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Figure 17.1: www.cesnet.cz• We ha
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The meeting was broadcast live via
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Most of the problems connected with
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Standard manipulator (privileged us
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19 Security of Local CESNET2Network
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Moreover, the program was complemen
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in the network of AV ČR Praha-Krč
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19.5 Future Plans, Expected Further
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InternetNTPEthernetKPCPPSLabelPPSLa
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generated by the NTP server. Its ou
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21 Platforms for Streaming andVideo
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streaming serverAAA (LDAPS) server1
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21.5 Video Content CollaborationPla
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First of all, we had to define an a
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international-scale broadcast will
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Part IVConclusion and Annexes
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23 ConclusionThe current developmen
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AList of connected institutionsA.1
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institutionconnection [Mbps]Institu
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Karásek Miroslav, Ing., DrSc. Czec
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Voral Pavel, Ing.Voříšek Martin,
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Burčík J.: Optické přepínání
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Veselá S.: Aktivity sdružení CES
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Krsek M.: Platformy pro streaming m
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Zatloukal K., Křivánek V.: Videok
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Satrapa P.: Scavenger: Za Internet
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