1 / 26

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

GRNET, the Greek Research Network, interconnects 55 institutions and offers innovative services like IPv6 support, MPLS, and monitoring tools. Discover upcoming services and upgrades in optical networking and multicast technologies.

thomasvsmith
Download Presentation

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

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  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

More Related