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100GbE Transport Requirements

100GbE Transport Requirements. Klaus Grobe, Jörg-Peter Elbers, Michael Eiselt Internet2 Meeting, October 10th, 2007. Outline. 100GbE Carrier Transport IEEE HSSG and ITU-T SG15 Interface Focus and Status 100G Requirements and Challenges Possible (and likely) Solutions.

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100GbE Transport Requirements

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  1. 100GbE Transport Requirements Klaus Grobe, Jörg-Peter Elbers, Michael Eiselt Internet2 Meeting, October 10th, 2007

  2. Outline • 100GbE Carrier Transport • IEEE HSSG and ITU-T SG15 Interface Focus and Status • 100G Requirements and Challenges • Possible (and likely) Solutions

  3. Optical TransportNetwork 100GbE Carrier Transport Provider Edge (PE) Customer Edge (CE) • Transparent transport of 100GbE services • Reach and capacity extension (Mm, Tb/s) • Inline optical amplification and compensation/equalization, DWDM, advanced modulation/coding 100GbE N x 100GbE “Line I/F” “Client I/F” Mapping, Framing, FEC & OAM, Multiplexing

  4. IEEE and ITU Interface Focus Basis Focus Application Physical Media Operation Price Expectation ITU-T SG15 “Line interface” • G.709 Standard • Transport equipment • WAN/Long Reach • SMF • N x 100G(amplified DWDM) • 6.25 x OTU-2* IEEE 802.3 HSSG “Client interface” • 802.3 Standard • Data equipment • LAN/Short Reach • Copper, SMF, MMF • 1 x 100G(grey) • 2 x 10GbE *) 2.5x price for 4x capacity

  5. 100GbE Transport Requirements • Support of metro and (regional/LH) core DWDM applications • Compatibility to today’s fiber infrastructure • Compatibility to 50GHz channel grid (core) • Compatibility to 100GHz channel grid (metro) • ≥ 2x increase in spectral efficiency compared to 40Gb/s (core) • > 2x increase in spectral efficiency compared to 10Gb/s (metro) • 100GbE must consider / be considered by OTH OTU4

  6. Non-linear Limit Noise Limit Number of Spans [a.u.] Launched Channel Power [a.u.] 100GbE Transport Challenges • For same reach and modulation format as 10Gb/s • 10dB OSNR penalty • 100x higher impact of GVD • 10x higher impact of PMD • More degradations by fiber nonlinearity • Incompatibility to optical filters and channel grid • Serial transmission (100GbE per l) expected to win on long term • Needs advanced modulation, FEC, electronic signal processing • Likely different interface variants for metro and core • Industry consensus on formats highly desirable

  7. Likely 100G Interface Summary Transport/line interfaces @ 1.55µm Enterprise 4x 25.8Gb/s < 200km SMF DWDM Metro 1x 111Gb/s < 600km SMF Multi-level/carrier Core 1x 111Gb/s (27.8GBd) < 2000km SMF QPSK+PolMux • 100G transport will start in metro and enterprise (corporate backbone) networks • System upgrades 10G  40G  100G are required! Data/client interfaces 10m 10x 10.3Gb/s Cu Assembly SDM 100m 10x 10.3Gb/s OM3 MMF 850nm SDM 100m 1x 103Gb/s SMF 1.3µm TDM 10km 4x 25.8Gb/s SMF 1.3µm xWDM 40km 4x 25.8Gb/s SMF 1.3µm xWDM

  8. Summary • Single-wavelength transport necessary for spectral efficiency • ITU-T G.709-compliant framing mandatory • Support upgrades of 10G/40G installations • Different solutions for different distance domains • Focus on highly tolerant, cost effective realizations

  9. Thank You KGrobe@ADVAoptical.com JElbers@ADVAoptical.com MEiselt@ADVAoptical.com

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