2002 - cesnet

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For displaying detailed information about a data flow, it is more convenientto use statistics generated from non-aggregated data that are stored in hourlytables. In this case, you can also choose from much more search criteria thanthose contained in the statistics generated from aggregated information, whichis described above. The output is formatted as a table with links pointing to detailedinformation about used IP addresses or autonomous systems.Figure 15.2: Statistics based on non-aggregated data15.3 NetFlow EventThe third component of the NetFlow Analyser system maintains sending ofinformation to selected targets. For a given message, multiple addressees andthe message type (e-mail, SMS) can be specified in the system. Event types towhich specific rules should apply are optional. For example, it is possible todefine that all information should be sent by e-mail, but critical errors shouldbe sent to a mobile phone.In the future, we plan to add the support for sending messages to pagers and toa directly connected SMS gateway. Unfortunately, we did not manage to implementany information aggregation this year. Currently, every item is sent individually,which may lead to the unpleasant mailbox overflow effect.172 High-speed National Research Network and its New Applications 2002
15.4 ConclusionDuring 2002, our team successfully created the main core of the monitoringsystem, which could efficiently search for network problems and which actuallyprovides means for avoiding such problems. The developed analyser iscurrently under testing performed by Mr. Valencia Scott from the AT&T corporationand Mr. Rich Polyak from the pharmaceutical company Aventis. In orderto speed up the application development, we established a closed developmentmailing list at netflow-l@cesnet.cz in December.High-speed National Research Network and its New Applications 2002173
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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
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5.2.7 Connecting End Site NetworksI
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5.4 IPv6 User Services and Applicat
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sible reprogramming of functions, a
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IPBIpb_0HFEHfe_1SORSor_0LUPLup_0RQR
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As regards our router on the PC pla
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the activities of our project. In 2
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6 Multimedia Transmissions6.1 Objec
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scaling is considerably restricted;
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Figure 6.1: Modified program for sh
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6.3.5 Direct Support for Pilot Grou
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programs which control the integrat
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Figure 6.4: Example of broadcast fr
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Figure 6.5: Set of tuners and serve
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and transfer the solution to an ope
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The actual computing capacity of Me
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7.1.2 Information ServicesMetaCentr
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Figure 7.1: Grid nodes for SC2002an
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(December 2002). This was one of th
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the use of 158 processors). When we
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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
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
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
Page 171: In the second half-year, we complet
Page 175 and 176: • data space consolidation (easy
Page 177 and 178: ecord size [kB] 256 512 1024 2048 4
Page 179 and 180: Figure 16.3: Nishan-Linux measureme
Page 181 and 182: 16.3.1 No SecurityThe initiator is
Page 183 and 184: vices. These features mainly involv
Page 185 and 186: Figure 17.1: www.cesnet.cz• We ha
Page 187 and 188: The meeting was broadcast live via
Page 189 and 190: Most of the problems connected with
Page 191 and 192: Standard manipulator (privileged us
Page 193 and 194: 19 Security of Local CESNET2Network
Page 195 and 196: Moreover, the program was complemen
Page 197 and 198: in the network of AV ČR Praha-Krč
Page 199 and 200: 19.5 Future Plans, Expected Further
Page 201 and 202: InternetNTPEthernetKPCPPSLabelPPSLa
Page 203 and 204: generated by the NTP server. Its ou
Page 205 and 206: 21 Platforms for Streaming andVideo
Page 207 and 208: streaming serverAAA (LDAPS) server1
Page 209 and 210: 21.5 Video Content CollaborationPla
Page 211 and 212: First of all, we had to define an a
Page 213 and 214: international-scale broadcast will
Page 215 and 216: Part IVConclusion and Annexes
Page 217 and 218: 23 ConclusionThe current developmen
Page 219 and 220: AList of connected institutionsA.1
Page 221 and 222: 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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