2002 - cesnet

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Cisco GSR 12008GE-GBIC-ZXlinkCisco 7500GE-GBIC-ZXEDFAfiber 180 kmboosterFigure 4.8: Testing configuration for GE, with booster onlyCisco GSR 12008GE-GBIC-ZXlinkCisco 7500GE-GBIC-ZXEDFAfiber 180 km EDFAbooster preamplifier optical filterFigure 4.9: Testing configuration for GE, with booster and preamplifierCisco GSR 12008GE-GBIC-ZXlinksplitterCisco 7500GE-GBIC-ZXEDFAEDFAfiber 180 kmbooster preamplifier optical filterRamanpumpFigure 4.10: Test configuration for GE, with booster, preamplifierand Raman pumpThe Prague–Pardubice line was further monitored in order for us to identify thebehaviour of optical amplifiers under the conditions of a long-term operation.The line reported very good results and we therefore decided to continue andinstall two EDFA 24 dBm boosters on another line, Prague–Ústí n. L., again usingthe Gigabit Ethernet technology.There were some problems reported on this line – the card in the new Cisco7609 router behaved in a non-standard manner after its connection to the linewith optical amplifiers, resulting in a loss of the connectivity. It turned out laterthat this was caused by short-term signal dropouts (30 ms), which occured dueto an error in the firmware of Keopsys optical amplifiers. Keopsys and Ciscodebugged their software and at present, both lines are free of errors.During the second half of the year, we also began to make a more intensive useof Optisim and Artis simulating programs, particularly for the simulation of tests58 High-speed National Research Network and its New Applications <strong>2002</strong>
0101 NRZlaserMach-ZendermodulatorEDFAboosterSMF fiber 230 kmBERPINfilterDCF fiber 46 kmEDFApreamplifierFigure 4.11: Scheme for simulating the effects of chromatic dispersion compensationFigure 4.12: BER as input performance function, dispersionpost-compensationon 10 Gbps (it was impossible to carry out real experiments as the necessaryhardware was not available). At this bandwidth, chromatic dispersion is one ofthe limiting factors and its optimal compensation is necessary.4.7.2 Preparation for Use of WDM in CESNET2As regards the deployment of wave multiplexers during the first half of the year,we focussed on an acquisition of available information concerning this technologyand we also looked at the possibilities of testing some of the devicesdirectly in CESNET2. We succeeded in borrowing some devices from Cisco andPandatel.High-speed National Research Network and its New Applications <strong>2002</strong>59
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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. .
Page 7 and 8: 14.3 Cisco ICM Software . . . . . .
Page 9 and 10: 1 IntroductionThe report presented
Page 11 and 12: 2 Brief SummaryThe research plan ti
Page 13 and 14: men. We designed the basic concept
Page 15 and 16: 2.4 Other ProjectsThe objective of
Page 17 and 18: 3 Operation of CESNET2During 2002,
Page 19 and 20: Canarie622 MbpsESNET622 MbpsGÉANT/
Page 21 and 22: central network core routers with t
Page 23 and 24: The existing logical topology of mu
Page 25 and 26: The logical core topology anticipat
Page 27 and 28: Within the informative part, we req
Page 29 and 30: 3.6 Statistical Traffic Analysis3.6
Page 31 and 32: Figure 3.8: Influence of time step
Page 33 and 34: Praha-Plzeň, 2.5 GbpsPraha-Ústí
Page 35 and 36: CESNET2-GÉANT, 1.2 Gbps (october)C
Page 37 and 38: Part IStrategic Projects
Page 39 and 40: 4 Optical Networks and theirDevelop
Page 41 and 42: US (TeraGrid with backbone 4 × 10
Page 43 and 44: ApplicationMiddlewareHigh bandwidth
Page 45 and 46: 4.2.2 User InterfaceSubscribers (me
Page 47 and 48: ers will move and that other types
Page 49 and 50: GermanyCheb10 G34 MPlzeňGÉANT 622
Page 51 and 52: It is also possible to implement th
Page 53 and 54: Chemical Technology and PASNET, we
Page 55 and 56: Manufacturerwww.accton.comwww.actio
Page 57: particularly based on the fact that
Page 61 and 62: 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
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Figure 8.1: Number of phone calls i
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VoGWs of members involved in the pr
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connection and compare the features
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• Extensive possibilities for the
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H.323 WorldSIP PhoneMS Messengerand
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ation with students at the Strahov
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9 Quality of Service in HighspeedNe
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In addition, Juniper routers make u
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We tried to divide the capacity of
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low with respect to the capacity of
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Figure 9.10: Loss rate on Prague-Po
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sendingapplicationTCP senderseqackp
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Figure 9.13: Example of a course of
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Part IIInternational Projects
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10 GÉANTSince 1996, CESNET has bee
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Figure 10.2: Utilization of individ
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11 DataGridSince 2001, our research
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Therefore, we organized a meeting w
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12 SCAMPISCAMPI (Scaleable Monitori
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12.3.1 WP0 - Requirement AnalysisTh
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1 6 12 18 24 30requirements analysi
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Part IIIOther Projects
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13 Online Education Infrastructurea
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13.1.2 Construction of a Teleinform
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with high-capacity disk memories co
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If the collaboration of individual
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ten, whereas items in the hyperlink
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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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