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40 and 100 GbE – Network Interfaces of the Future

40 and 100 GbE – Network Interfaces of the Future. Drew Perkins dperkins@infinera.com 408-572-5308. Agenda. 40 and 100 GbE standards status 40 and 100 GbE LAN architectures 100 GbE transport architectures. IEEE HSSG / 802.3ba Task Force.

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40 and 100 GbE – Network Interfaces of the Future

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  1. 40 and 100 GbE –Network Interfaces of the Future Drew Perkins dperkins@infinera.com 408-572-5308

  2. Agenda • 40 and 100 GbE standards status • 40 and 100 GbE LAN architectures • 100 GbE transport architectures

  3. IEEE HSSG / 802.3ba Task Force • Study group approved 100G rate for network aggregation applications and 40G rate for server/host interfaces in Jul ‘07 • Schedule (draft): • HSSG→802.3ba Task Force Jan ‘08 • Last New Proposal May ’08 • Task Force Ballot Sept. ’08 • 802.3 Working Group Ballot March ’09 • Sponsor Ballot Nov. ’09 • Standard Published 2Q2010

  4. Ethernet Alliance – High Speed Ethernet (HSE) Committee • Technical & Marketing subcommittees established to facilitate consensus formation outside of the IEEE on technical approaches and to provide a cohesive set of industry education & application materials • Published initial 40/100GbE white paper • http://www.ethernetalliance.org/technology/white_papers/Overview_and_Applications2.pdf

  5. ITU – SG15 • Provides base recommendations for the mapping of 100 GbE client interfaces into the OTN hierarchy • Draft proposals (which will be gated by IEEE draft standard decisions in 2008/09) to specify 4 OTN mappings for 100 GbE • 10 x ODU2e • 11 x ODU2 • 3 x ODU3 • 1 x ODU4 • ODU4 rate is still TBD (either ~112G or 130G)

  6. OIF (Optical Internetworking Forum) • Several working groups contributing to requirements & specifications surrounding 100 GbE end-to-end interworking • Carrier Working Group • Drafting a set of 100 GbE user requirements to effectively interwork IEEE LAN interfaces into the transport system • Physical and Link Layer Working Group • Working on 25G electrical interface specifications & LAN-to-OTN related requirements

  7. Proposed and Likely 100 GbE PMDs • 10 km on Single-Mode Fiber (SMF) • 4x 25G using 1310 nm EMLs (possibly DMLs) and WDM over single fiber pair • 10GBASE-LX4 runs at 4x 3.125 Gb/s using 1310 nm DMLs over single fiber pair • 10GBASE-L runs at 1x 10 Gb/s using 1310 nm DMLs • OC-768 runs at 40 Gb/s using 1550 nm EMLs • 40 km on SMF • 4x 25G using 1310 nm EMLs, Semiconductor Optical Amplifiers (SOAs) and WDM over single fiber pair • 10GBASE-E runs at 1x 10 Gb/s using 1550 nm EMLs • First use of SOA technology in any standard (risk?) • 100 m on OM3 Multi-Mode Fiber (MMF) • 10x 10Gb/s using 850 nm VCSEL arrays and fiber ribbons • 10GBASE-S runs at 1x 10 Gb/s using 850 nm VCSELs • 10 m on a copper cable assembly • 10x 10 Gb/s over Infiniband/CX4-style coax • 10GBASE-CX4 runs at 4x 3.125 Gb/s • Notes: • No 100 Gb/s “serial” (i.e. single-l) PMDs • No metro/LH DWDM interfaces

  8. 100 GbE MAC ASIC 10G 10G 10G 10G 25G 10G 25G 10G 25G 10G 25G 25G 25G 10G 10G 25G 10G 25G 100 GbE MAC ASIC 10x 10 Gb/s CDR 10x 10 Gb/s CDR Copper 12x Infiniband Cable 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 4x 4x 4x 4x 4x 4x 4x 4x 100G Transponder 100G Transponder 10x 10 Gb/s Detector & TIALA Arrays 100 GbE MAC ASIC 10x 10 Gb/s VCSEL Array 100 GbE MAC ASIC MMF 12x MMF Ribbon 25Gx4l 25Gx4l 100G Transponder 1 1 100G Transponder 4x 25 Gb/s MD & EML Arrays 4x 25 Gb/s Detector & TIALA Arrays 100 GbE MAC ASIC 100 GbE MAC ASIC 10 kmSMF 10:4 Gearbox 4:1 WDM Mux 4:1 WDM Demux 4:10 Gearbox SMF 100G Transponder 100G Transponder 4x 25 Gb/s MD & EML Arrays 4x 25 Gb/s Detector & TIALA Arrays 100 GbE MAC ASIC 100 GbE MAC ASIC SOA 40 kmSMF 10:4 Gearbox 4:1 WDM Mux 4:1 WDM Demux 4:10 Gearbox SMF Likely100 GbE PMD Architectures

  9. Proposed and Likely 40 GbE PMDs • 100 m on OM3 Multi-Mode Fiber (MMF) • 4x 10 Gb/s (vs. 10x 10 Gb/s for 100 GbE) • 10 m over a copper cable assembly • 4x 10 Gb/s (vs. 10x 10 Gb/s for 100 GbE) • 1 m over a backplane • 4x 10 Gb/s • Notes: • No 40 GbE SMF PMDs • No 40 Gb/s serial PMDs • No metro/LH DWDM interfaces

  10. How Will 100 GbE Be Transported Over DWDM? • ODU4? • 1x 100 (120?) Gb/s • Several vendors proposing Dual Polarization QPSK • 100 Gb/s single-l (not serial) • 4x 26.75 Gb/s channels (with 7% FEC) • ODU3-3v? • 3x 40 Gb/s • ODU2-11v? • 11x 10 Gb/s • ODU2e-10v? • 10x 10 Gb/s • ITU-T recently relented and specified OTU2e/ODU2e • Overclocked OTU2/ODU2

  11. It’s Really a Question of Economics • OC-768 service provider experience • 4x bandwidth increase, but » 4x cost increase • Not 2.5x as historically experienced and now expected/wanted • cost(1x 40 Gb/s) » cost(4x 10 Gb/s) • ODU3-3v • 20% wasted bandwidth • cost(3x 40 Gb/s) » cost(12x 10 Gb/s) > cost(10x 10 Gb/s) • Why would anyone do this? • ODU2-11v • cost(ODU2e) = cost(ODU2) • cost(11x 10 Gb/s) > cost(10x 10 Gb/s) • Why would anyone do this? • ODU4 • Complicated, power-hungry electronics • Will require significant integration to yield acceptable costs • Will it cost < ODU2-10v (will 100 GbE cost < 10x 10 GbE)? • Some predict 100 GbE may cost ~2.5x 40G POS • cost(2.5x 40 Gb/s) » cost(10x 10 Gb/s) • ODU2e-10v • Already integrated via PICs and shipping since 2004 • Prediction: 10x 10 Gb/s ls will remain « 1x 100 Gb/s ls for a long time

  12. 25G 10G 25G 10G 10G 10G 25G 10G 10G 25G 25G 25G 25G 25G 25G 10G 10x 10x 10x 10x 10x 4x 4x 4x 10x 4x 10x 4x 4x 4x 4x 4x 25Gx4l 25Gx4l 1 1 100 GbE Over DWDM Transport – 10x 10Gb/s Example (1 of Several Possibilities) Router 1 100G LH Transponder 1 (Tx) 100G SR Transponder (Tx) 100G SR Transponder (Rx) 4x 25 Gb/s MD & EML Arrays 4x 25 Gb/s Detector & TIALA Arrays 100 GbE MAC ASIC 10:4 Gearbox 4:1 WDM Mux 4:1 WDM Demux 4:10 Gearbox 10x 10 Gb/s FEC ASIC SMF 100G LH Transponder 2 (Rx) 10x 10 Gb/s Detector & TIALA Arrays 10x 10 Gb/s MD & EML Arrays 10:1 WDM Demux 10:1 WDM Mux 10x 10G FEC ASIC Optical Transport Network Router 2 100G SR Transponder (Tx) 100G SR Transponder (Rx) 4x 25 Gb/s MD & EML Arrays 4x 25 Gb/s Detector & TIALA Arrays 100 GbE MAC ASIC 10:4 Gearbox 4:1 WDM Mux 4:1 WDM Demux 4:10 Gearbox SMF

  13. SC2006 100GbE Network Demonstration

  14. Thanks! Drew Perkins dperkins@infinera.com 408-572-5308

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