Optical/Photonic Exchanges. Freek Dijkstra, Cees de Laat University of Amsterdam

Transcription

1 Optical/Photonic Exchanges Freek Dijkstra, Cees de Laat University of Amsterdam

2 Just fibers λexchanges Each provider has fibers to the other providers [ n*(n-1) ] ATM based Through one connection ATM pvc s to all peers [ n*(n-1) ] constrained StarTap based switch as packet peering point (extended) [ n ] differently flexibly constrained AMS-IX Lambda based MEMS, DWDM, SONET (pseudo optical;-),, etc. mix NetherLight++, StarLight++

3 # u s e r s A. Lightweight users, browsing, mailing, home use Need full Internet routing, one to many B. Business applications, multicast, streaming, VPN s, mostly LAN Need VPN services and full Internet routing, several to several + uplink C. Special scientific applications, computing, data grids, virtual-presence Need very fat pipes, limited multiple Virtual Organizations, few to few SC >> 100 Gb/s SB 40 Gb/s A SA 20 Gb/s B C ADSL GigE λbw requirements

4 A B C SCALE CLASS λservices 2 Metro Switching/ routing Switches + E-WANPHY VPN s dark fiber DWDM MEMS switch 20 National/ regional Routing Switches + E-WANPHY (G)MPLS DWDM, TDM / SONET Lambda switching 200 World ROUTER$ ROUTER$ Lambdas, VLAN s SONET

5 λso what? Costs of optical equipment 10% of switching 10 % of full routing equipment for same throughput 10G routerblade -> k$, 10G switch port -> k$, MEMS port -> 0.7 k$ DWDM lasers for long reach expensive, 10-50k$ (???) Bottom line: look for a hybrid architecture which serves all classes in a cost effective way ( A -> L3, B -> L2, C -> L1) Give each packet in the network the service it needs, but no more L1-0.7 k$/port L k$/port L k$/port

6 UVA/EVL s λ 64*64 Optical NetherLight in SURFnet SARA Costs 1/100th of a similar throughput router or 1/10th of an switch but with specific services! BeautyCees

7 How low can you go? Application Endpoint A Router SONET DWDM fiber λregional dark fiber Local NetherLight POS MEMS UKLight Application Endpoint B / 6500 Trans-Oceanic GLIF StarLight

8 Subnetwork 1: Green Zierikzee Middelburg Haarlem1 Leiden1 DenHaag Bergen-op- Zoom Vlissingen Delft1 Middenmeer1 Den Helder Alkmaar1 Dordrecht1 Breda1 Krabbendijke Emmeloord Rotterdam4 Rotterdam1 Harlingen Subnetwork 4: Blue Azur λcommon DLO Zwolle1 Photonic Lelystad1 Amsterdam1 Subnetwork 3: Layer Red Apeldoorn1 (CPL) in Enschede1 Breukelen1 Hilversum1 Arnhem Schiphol-Rijk SURFnet6 Zutphen1 Utrecht1 Wageningen1 Nijmegen1 Ede Nieuwegein1 Venlo1 Den Bosch1 Subnetwork 5: Grey Eindhoven1 Heerlen1 Maasbracht1 Tilburg1 Heerlen1 Maastricht1 Geleen1 Heerlen2 Amsterdam2 Subnetwork 2: Dark blue Lelystad2 BT Leeuwarden Dwingeloo1 BT NLR Groningen1 Assen1 Beilen1 Hoogeveen1 Meppel1 NLR Beilen1 BT 3XLSOP IBG1 & IBG2 Emmen1

9 Light Paths provisioning International Light Path connectivity Customer equipment 1 GE λimplementation 10 GE 10 GE LAN Nortel OME 6500 SURFnet infrastructure Non-SURFnet SURFnet6 Sites in Amsterdam Nortel OME x16 MEMS 16x16 MEMS Nortel OME 6500 SURFnet6 Common Photonic Layer Regional Light Path 10 GE LAN Nortel OME GE Optical Switch Customer equipment

10 Optical Exchange as Black Box λ Optical Exchange Optical Cross Connect Switch TDM Store & Forward DWDM mux/demux TeraByte Service

11 Service Matrix From To WDM (multiple λ) Single λ, any bitstream SONET/ SDH 1 Gb/s LAN PHY WAN PHY VLAN tagged IP over WDM (multiple λ) cross-connect multicast, regenerate, multicast WDM demux WDM demux* WDM demux * WDM demux * WDM demux * WDM demux * WDM demux * Single λ, any bitstream WDM mux cross-connect multicast, regenerate, multicast SONET/SDH WDM mux SONET switch, + TDM demux * TDM demux 6 SONET switch TDM demux * TDM demux * 1 Gb/s WDM mux TDM mux conversion + eth. convert conversion VLAN encap L3 entry * LAN PHY WDM mux N/A* TDM mux 6 conversion conversion + conversion VLAN encap L3 entry * WAN PHY WDM mux SONET switch conversion conversion conversion + VLAN encap L3 entry * VLAN tagged WDM mux TDM mux VLAN decap VLAN decap VLAN decap Aggregate, VLAN decap & encap + N/A IP over WDM mux TDM mux L3 exit * L3 exit * L3 exit * N/A Store & forward, L3 entry/exit+

12 Control Plane AAA The grid approach: Observe ownership, allow owner to set up the usage policy and delegation of control Ownership/AAA per port, line, service Services must be exposed at web-services (WSRF) Brokers will combine multiple web-services (multiple optical exchanges, and even other type of services like storage) Users will set up an end-to-end lightpath by contacting a broker, who checks the users rights and contacts the individual optical exchanges and Lambda owners to do the provisioning

13 λlighthouse

14 λ

15 Not quite The END λthanks to SURFnet: Kees Neggers,UIC&iCAIR: Tom DeFanti, Joel Mambretti, CANARIE: Bill St. Arnaud Freek Dijkstra, Hans Blom, Leon Gommans, Bas van oudenaarde, Arie Taal, Pieter de Boer, Bert Andree, Martijn de Munnik, Antony Antony, Rob Meijer, VLteam. Partially complete list: Caas Chase Cess Kess Case

16 The END Thanks to SURFnet: Kees Neggers,UIC&iCAIR: Tom DeFanti, Joel Mambretti, CANARIE: Bill St. Arnaud Freek Dijkstra, Hans Blom, Leon Gommans, Bas van oudenaarde, Arie Taal, Pieter de Boer, Bert Andree, Martijn de Munnik, Antony Antony, Rob Meijer, VLteam. Partially complete list: Caas Chase Cess Kess Case