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GR NET Greek Research & Technology Network grnet.gr/index_en.html

GR NET Greek Research & Technology Network http://www.grnet.gr/index_en.html. Tryfon K. Chiotis tchiotis@grnet.gr Dimitrios K. Kalogeras dkalo@ntua.gr Fotis Karayannis fkara@grnet.gr Yiannis Skopoulis scopouli@uoi.gr. GRNET.

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GR NET Greek Research & Technology Network grnet.gr/index_en.html

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  1. GRNETGreek Research & Technology Networkhttp://www.grnet.gr/index_en.html Tryfon K. Chiotis tchiotis@grnet.gr Dimitrios K. Kalogeras dkalo@ntua.gr Fotis Karayannis fkara@grnet.gr Yiannis Skopoulis scopouli@uoi.gr GRNET

  2. GRNET • NRN: Greek Research Network General Secretariat of Research & Technology (Ministry of Development) • Interconnects: 55 Institutions (Universities, Research Centers, Technological Institutions) with150.000 Internet users • Operates Athens Internet Exchange - AIX GRNET

  3. International Collaboration • TEN-155 / GEANTAthens PoP 2x155 Mbps • MEDNET Regional R&E - 12 Non-EU Members Mediterranean Countries • Internet2 International Member • Balkan Regional Network (Bulgaria, FYROM, Rumania, Albania, Serbia) GRNET

  4. National Initiatives • Real time services • IPv6 support • MPLS • Multicast • Directory service – LDAP • ATM MBS (Managed Bandwidth Service) • Monitoring tools (http://netmon.grnet.gr) GRNET

  5. TF-NGN Synergy • MPLS test-bed • Over-provisioned network performance analysis • Optical networking • Diffserv Service definition proposal for transantlantik links • Multicast • Flow monitoring (http://nfa.grnet.gr/graphs/overview) GRNET

  6. Upcoming services • Large scale conference • Directories for access to GRNET2 • PKI • IP QoS • High-school integration • GRID platform (e.g. Interconnection of High Energy Physics PC farms) • More IPv6 services (dns, www, etc) GRNET

  7. GRNET2 Upgrade Study • Extensive market and NRN deployment research • Design principles definition • Native IP Qos support • Native MPLS (VPN, TE, GB –TE) • Native IPv6 support • Optical DWDM upgrade (GigE MAN, Partial Mesh WAN) • N x 2.5 Gbps speeds • Gigapop in three cities • DWDM international connections GRNET

  8. Service Oriented • Multicast (Native, PIM-SM anycast RP) • 1 Line TV station and 4 Live radios • Infrastructure for digital content distribution (e.g. Digital Libraries) • Videoconferencing, H.323, MCUs – Distance Learning – Gigaconference - participant • VoD (Media base, etc) • IPv6 tunneled backbone (pTLA, sTLA assigned) 7 intl. Peering (NTT, 3Com, Sprint, BT, Switch, etc), Online automatic pTLA connectivity diagram) • Academic Directory service GRNET

  9. WAN layout Xanthi Thessaloniki Ioannina Larissa Athens Patra Crete GRNET

  10. GRNET2 progress • Baseline Network Design for Athens, Crete and Thessaloniki GigaPoP and other PoPs • Baseline Connectivity Requirements for WAN • Contract signed at the end of 2000 with Greek Incumbent Network Operator (Hellenic Telecommunications Organization-OTE S.A.) for λ service provisioning in Athens GigaPoP • Currently under negotiation with OTE for λ service provisioning in other MANs and WAN • Tender preparation for Athens GigaPoP IP equipment GRNET

  11. GRNET MAN Requirements (1) • Mandatory/Desirable requirements • Fiber infrastructure • >= G.652 (Dispersion Un-shifted Fiber) • Testing tools for optical parameters’ measurement • 2 optical paths for each access node • avoid Single Points of Failure • Access node distance from WDM core < 10 km • Support for 15 Access Nodes GRNET

  12. GRNET MAN Requirements (2) • WDM Networking equipment • Frame+bit-rate independent all-optical λ service • Co-location of GRNET IP equipment with WDM • 2,5 Gbps physical ring upgradable to 10 Gbps • Wavelength Adaptation capable (via transponders) • Spare λ for testing purposes • Embedded system upgradeable • Multiple frames in a single wavelength (D) • Optical switching/conversion (D) • Support of “Digital Wrapper” (D) GRNET

  13. GRNET MAN Requirements (3) • WDM Management System • EML and NML functionality • Access to the Management System (read-only for production services, full access for testing/trials) • Standard northbound interfaces (EML, NML) –SNMP (M), IDL, Q3 • GUI for read-only and/or write access • Configuration: provisioning, end-to-end path management • Fault: Alarm logging, reporting, filtering, localisation (D), correlation (D) • Performance: monitoring, logging, threshold crossing alarm reporting GRNET

  14. Athens MAN WDM network (1) λ Service Provider building/ WDM equipment GRNET IP Equipment GRNET Customers’ Equipment (Universities, Research Institutes) GRNET

  15. Athens MAN WDM network (2) • Core WDM Network composed of a ring of re-configurable OADMs • 80 km optical ring with 10 OADMs (no regeneration) • 2,5 Gbps ports (upgradeable to 10Gbps) • 1-32 λ per node • 100 Ghz spacing • Add/drop up to • 160 Gbs (upgradeable to 640 Gbps) • 25%,50%,100% • Tx/Rx Line - up to • 80 Gbps East (upgradeable to 320 Gbs East) • 80 Gbs West (upgradeable to 320 Gbs East) GRNET

  16. Athens MAN WDM network (3) • Multi rate (up to 2,5 Gbps) 3R Transponders supporting Gigabit Ethernet, SDH frames, ATM etc. including 24 Transponder Shelf • Offers OCh SNC protection – will not be used by GRNET • Network Management System – Access to the NMS is negotiable • Configuration Management • End-to-end OCh SNC provisioning • Fault Management • Alarm Reporting/Filtering • Performance Management • Client layer monitoring • Future upgrade will support Digital Wrapper • To be delivered October 2001 GRNET

  17. Athens GRNET GigaPoP(1) GRNET

  18. Athens GRNET GigaPoP(2) • Access Network • Gigabit Ethernet for GRNET Customers’ Access • Protected Access (e.g. IEEE 802.1d spanning – tree) • Core Network - 2,5 Gbps • 2 x 1 Gigabit Ethernet • DPT/SRP 2,5 Gbps • PoS 2,5 Gbps • Customers’ VPNs • Gigabit Ethernet • ATM • Other GRNET

  19. Athens GRNET GigaPoP(3) GRNET

  20. Internet2 collaboration • Videoconference • H.323, Megaconference • Middleware • DEN -> access Gigabit Infrastructure • PKI for High Schools and Universities • Engineering • QoS service definition, Multicast, IPv6 • Advanced Application • Digital Libraries, Voice over IP, Dig. Video • Health science knowledge diffusion • Grid GRNET

  21. Thank You! GRNET

  22. GRNET2 specs. • λ dimensioning (supporting multiple framing) • Metro DWDM • Optical VPNs • MPλS • No framing - No regeneration • No protection (MPLS & OSPF) • Long haul DWDM • SDH framing & regeneration • No protection (MPLS & OSPF) GRNET

  23. Gigapop general overview GRNET

  24. Distributed Gigapop (MAN) GRNET

  25. Conventional Pop GRNET

  26. Balkan Regional Network GRNET

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