1. Lightpaths: why, what (and how!) Bram Peeters, SURFnet Network Services SNE College, 21 st of March, Utrecht

2. Some history: Lightpaths and OPNs - network users and uses Required capacity per user category: -A: End users: web, e-mail -B: Institutions: applications, VPNs, shared service center -C: Researchers: computing, data grids, virtual-presence This slide courtesy of Cees de Laat BW requirements #users#users C B ADSL GigE  A ≈ 20 Gb/s  B ≈ 40 Gb/s  C ≈ 100 Gb/s A

3. The Basic Light Path A definition (one of many) -“reliable, point-to-point connection, with guaranteed bandwidth and fixed delay” -SURFnet standard: GE port at the client side -L2 connection => building stone OPN, direct connection projects -OPN = Optical Private Network GE

4. Make the network ready - SURFnet6: DWDM on dark fiber Muenster Fiber Network

5. A network for lightpaths AMS1 Intercontinental Light Paths Nortel HDXc AMS2 European Light Paths SURFnet6 Common Photonic Layer Customer equipment Customer equipment Nortel transport box End user Nortel transport box Nortel transport box Nortel transport box Non-SURFnet SURFnet infrastructure GLORIAD.. End-to-End Light Path

6. Lightpaths: implementation -Standard LAN interface (GE, 10GE) -Uses the qualities of the transport network to achieve -Performance: capacity, availability -Security: OSI L1 -Flexibility: locations, topologies -Simplicity: ‘transparent’, predictable/fixed latency -Costs of usage GE

7. Hybrid Optical/Packet Networks – from a GE to wavelengths IP EthernetHDLC 10 G LAN PHY10 G WAN PHY1 G PHY SDH (G.707) Optical Fibre GFP (G.7041) packetpacket o p ti c a l Courtesy of John Graham

8. Time Division Multiplexing A  Z:1 E  Z:1 E D C B A E D C B A Z 13458 Z 762 Courtesy of John Graham STM-64: 10 Gbit/s – 64 x 150 Mbit/s STM-16: 2.5 Gbit/s – 16 x 150 Mbits/s MUX / DEMUX

9. ………… Basic Node Architecture – A bit on next-gen SDH / SONET GE 10G Client side network side - SDH crossconnect

10. Making Lightpaths reliable Model 1: Single GE OME - GE interface - 1 client port - Fiber cut or failing equipment => service gone - Poor guarantees! Model 2: “path protected” GE OME - GE kinterface - 1 client port - 1+1 protected! - Fiber breuk => switch to protecting path < 60 ms - Good, clear guarantees working protecting

11. More models Model 3: redundant – not protected GE OME - 2 client ports - redundant, not protected - Node is single point of failure - 0 to 1G each path - Failure always impacts client experience working GE Model 4: let’s have it even more reliable GE OME - 2 client ports - redundant, protected - Node is final single point of failure - 0 to 1G each path -Failure always covered (for 1G) - THESE ARE TWO PROTECTED LPs!!! working 1 working 2 GE protecting 2 protecting 1

12. A network with lightpaths? -Designing a network to work with lightpaths demands some attention -Simple solution: direct point to point between two ‘boxes’ --> not really a network… -Complex solution: real L2 network??? -Routed solution, but a single admin domain

13. Example Optical Private Network: Artez Physical Logical

14. Zwolle Stadsmuur Zwolle Sophia Arnhem Onderlangs Enschede AKI Arnhem Oude Kraan Nieuwe situatie SURFnet LP 1Gb Firewall to Internet - uplink 1 Gb/s Managed Dark fiber Managed Dark fiber Artez OPN internet

15. Layer 3 architecture with Layer 2 applications

16. Application specific OPNs Healthcare OPN Institute Optical Private Network University dept University Telescope site CERN University High Energy Physics Network eVLBI Network Research Network

17. Large Hadron Collider: high-level network architecture

18. Customer equipment 1 GE Customer equipment DRAC Non-SURFnet SURFnet infrastructure “USI” – User to Service Interface (web GUI, API) Nortel OME 6500 public private Control plane Admin CPE User resource Nortel OME 6500 Nortel OME 6500 Nortel OME 6500 The (near!) future: Dynamic, user schedulable LPs

19. End-user GUI snapshot

20. A manageable service Finding the right place for management functions Service users -Get registered with group(s) -Log on -Schedule services within group -Use service -Verify service Group manager -Add users to group -Manage user rights -Get accounting of service usage -Request more ports! Service manager -Add network resources to DRAC -Create groups -Assign port resources and policy to group -Allocate to group manager Network operators -Know about the service -Don’t want to care about provisioning alarms -Manage network incidents -Don’t provision on DRAC resource! SURFNET USER COMMUNITY

21. Klaar!

22. Verder: 09:30 uur: Ontvangst met koffie 10:00 uur: Inleiding SURFnet en GigaPort – Roy van Schaik 10:20 uur: Fotonica in SURFnet6 - Wouter Huisman 10:50 uur: Bio-break 11:05 uur: Lightpaths, hoe, wat en waarom - Bram Peeters 11:35 uur: SURFnet6 Reporting and monitoring - Hans Trompert 12:00 uur: Lunch 12:30 uur: Einde