2002 - cesnet

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Figure 14.1: Call distribution information displayThe basic ICM components are CallRouter, Logger, Peripheral Gateway, and CTIServer. If ICM is running only on one server, it works in sprawler mode.14.4 Cisco Agent DesktopCisco Agent Desktop (CAD) provides tools for agents (operators) and supervisors(administrators). An example can be the screen pop (possibility for anadministrator to communicate with operators), software IP phone, and supervisorsoftware.The Desktop supervisor software features a detailed display of information onagent statuses and call statuses, the possibility to send messages to agents, callsrecording, and extended monitoring functions.14.5 Progress of WorkThe entire system is very demanding in terms of configuration, which wasproved many times during the installation. In the first half of 2002, we implementeda basic distributed workplace of the VoIP-based contact centre (IPCC).After the difficult installation of all components of the distributed contact cen-166 High-speed National Research Network and its New Applications 2002
tre, when we were forced to handle the installation of some components incollaboration with experts from Cisco Systems, we managed to implement thecontact centre in its minimal functional form. Our further step was to test theactual IPCC function in a testing environment.The automatic call distribution system works in the following way – operatorsregister their phones into the IPCC system through a workstation and incomingconnections are then forwarded to them using a round-robin method. If all operatorsare processing a phone call, i.e., no operator is free, music is played forthe caller until one of the operators becomes available. Operators can forwardcalls to one another – if one of the operators cannot handle a client’s request,he/she can forward the call to his/her colleague. The configuration of scripts,such as “what shall I do with an incoming call/call in progress”, is not difficult.The scripts can be modified in quite a simple way using a graphic editor andthen are sent directly to the ICM server.Within the tests, we tested a simulated failure of each component of the contactcentre. In the case of the CallManager operation failure, phones were automaticallyreregistered to the CCM2 backup server. While performing the tests, wedid not encounter any connection breakdowns, i.e., none of the active callswere disrupted. Concerning the IVR or ICM server failure, we did not detect anyconnection breakdown, either. In this case, however, we noticed a temporarilyprolonged response (up to 5 seconds) when establishing a new connection.The delay was probably caused by the time necessary for the transition fromthe primary server to the backup one. In this way, we tested redundancy of thewhole solution and obtained satisfactory results.We prepared our testing workplaces at ČVUT, where we could not integratethem to the operating VoIP network, however, as we did not have the dialingprefixes assigned that are needed for making the service available to the outsideworld.After all tests were completed, we installed the operating configuration of thecontact centre. In the second half of 2002, we made both workplaces operational– one of them in Prague (CESNET) and the second one in Ostrava (TechnicalUniversity of Ostrava). In both localities, there are currently three of the abovedescribed basic components installed, i.e., the CCM server, IVR server, and ICMserver.After performing the installation at the defined localities, we tested the practicalfunctionality of the basic distributed IPCC solution again, including the resistanceof this solution to simulated breakdowns (failures of individual components).Call Manager, operating as a publisher, is located in Prague, ensuringdistribution/replication of databases in collaboration with the backup server atthe Ostrava workplace (subscriber).High-speed National Research Network and its New Applications 2002167
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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
Page 115 and 116: • Extensive possibilities for the
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
Page 165: CallManager was designed using open
Page 169 and 170: 15 Intelligent NetFlow AnalyserThe
Page 171 and 172: In the second half-year, we complet
Page 173 and 174: 15.4 ConclusionDuring 2002, our tea
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
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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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