2002 - cesnet

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create a reference document for experts from Europe’s NRENs, concerning theopportunities associated with IP telephony, including recommendations for theselection, configuration and use of individual components.The project includes seven institutions from five countries. It will last11 months – from November 2002 to October 2003. The output of the projectwill be constructed in the form of four documents (deliverables). The last onewill be a reference document, including e.g.: summary of technologies in IPtelephony, proposal of possible configuration scenarios and instruction forconfiguring basic and additional voice services, description of integration withpublic telephony network and the summary of legislative issues. This referencedocument will be available at www.terena.nl.8.5 IPTA – IP Telephony AccountingDuring the previous year, we created our own IPTA (IP Telephony Accounting)application, for the purpose of monitoring and accounting in the IP telephonynetwork. The application allows for detailed summaries of calls made by selectedcustomers during a selected period, together with complete summaries.In 2002, we extended the application with new demanded functions. These newfunctions include:• Statistics of engaged and unanswered calls.• Statistics of various types of error messages, with the possibility of summariesand deletions, sorted by periods, callers, the called numbers and typesof errors.• Increased reliability of locking data for concurrent access and an increasein the speed of processing call details.• Graphic illustration concerning individual types of calls (within the IPtelephony network, long-distance calls through PSTN, etc.), for individualrates, according to alternative pricelists and depending on the success rate(answered, unanswered). For these diagrams, it was necessary to carry outsome internal adjustments in the monitoring application, necessary for furthertypes of graphic outputs, which we wish to apply during the followingperiod.For a detailed description of the new version of this application, see TechnicalReport No. 11/2002.The main features of the monitoring application consist of the following:• Possibility of parallel application of more accounting plans for their comparisonor for the comparison of possible locations of gateways to PSTN.114 High-speed National Research Network and its New Applications 2002
• Extensive possibilities for the rewriting of the identification of callers andcalled lines, following the needs of private branch exchanges.• Graphic presentation of data.• Monitoring and administration of various types of error and warning messages.• The application is based on open software – Linux, MySQL, PHP4, ApacheWeb server.Figure 8.5: Example of a complete summary8.6 SIP SignallingThe IP telephony network within CESNET2 was constructed on the basis of theH.323 signalling protocols. In order to provide access also to users making useof clients with an SIP protocol and to allow for calls from/to these clients, wedecided to support also the SIP protocol in our network.We have installed, and run in a trial mode, an SIP server – SIP Express Router(SER), developed in Fokus (Berlin). The server is modular and powerful, andfree to use thanks to its GPL licence. In addition, our team maintains friendlyrelationships with the server developers and has some experience with its usage.SER can run on various operating systems (Linux, BSD, MS Windows,…)and various HW platforms, including iPAQ.High-speed National Research Network and its New Applications 2002115
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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
Page 63 and 64: 5 IP version 6Further expansion of
Page 65 and 66: 5.2.1 IPv6 Network TopologyFor the
Page 67 and 68: 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: connection and compare the features
Page 117 and 118: H.323 WorldSIP PhoneMS Messengerand
Page 119 and 120: ation with students at the Strahov
Page 121 and 122: 9 Quality of Service in HighspeedNe
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
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CallManager was designed using open
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tre, when we were forced to handle
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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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