1 / 9

100 GbE Network implementations, challenges and testing

100 GbE Network implementations, challenges and testing. Joerg Packeiser Director Product Line Management Optical Transport JDSU Communications Test & Measurement Optical Expo 2007, Dallas. 4x25G CWDM. Cool. 100 GbE Ethernet Activities.

winthrop
Download Presentation

100 GbE Network implementations, challenges and testing

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. 100 GbE Network implementations, challenges and testing Joerg Packeiser Director Product Line Management Optical Transport JDSU Communications Test & MeasurementOptical Expo 2007, Dallas

  2. 4x25G CWDM Cool 100 GbE Ethernet Activities Ethernet Transport:Aggregate Bandwidth >> 100Gbit/s Multi-Lane Connections  100 Gbit/s per Wavelength CPE:No 100Gbit/s NICsbefore 2015 Investigation Data center nx100G DWDM Metro/Core HOT ! <40km HOT ! Short Range100Gbit/s per port IEEE HSSG Focus

  3. 100GbE is not always 100Gbit/s Serial Approaches: optimized for area of implementation 100GbEMAC Data Centers Short Reach <100m MMF or<10m Copper Campus Networks Intermediate Reach10km SMF Metro Long Reach 10-40km Long Haul 10x10G5x20G4x25G 4x25G 10x10G 10x10G MMF Serial 100G ODU2-11v ODU3-3v ODU4 100GbE MAC with 64/66 coding=> 103Gbps of data Current Focus of IEEE HSSG

  4. Technology: New modulation formats with high spectral efficiency (Duobinary Code, DQPSK,…) Compatibility with currently-installed optical line equipment (DWDM Grid, EDFAs, etc.) Compensation of transmission impairments (Noise, CD, PMD,…) Cost of 100GbE transceivers Processing of 100Gbit/s data streams Algorithms for parallel processing Standardized Interfaces between functional blocks, (cf. SFI-5 Interface, defined by IF for 40Gbit/s) Backplanes Common network structure for Ethernet and Transport (telecom & data) 100 GbE Challenges Networks:

  5. How does Ethernet scale for Transport? • SONET/SDH/OTN scales by factor of 4 (2.5G, 10G, …) • Ethernet scales by factor of 10 (100ME, 1GE, …) • 100GbE: opportunity to combine both worlds OC-3 155MOC-12 622MOC-48 2.5GOC-192 10GOC-768 40G SONET/SDH OTN Ethernet 100ME 1GbE 10GbE100GbE x4 x4 x10 OTU-1 2.7GOTU-2 10.7GOTU-3 43G OTNOverclock11.1G 44.4G ? x4 Bitrate

  6. Modulation formats for long haul transport RZ/NRZ100G elec. 100 QPSK50G elec. RZ/NRZ40G elec. Data Rate (Gbps) e.g. POLMUX QPSK25G elec. 40 QPSK20G elec. RZ/NRZ10G elec. 10 1 2 4 bit/symbol • Long haul transport of 100G serial will require multi-level modulation (X bits per symbol) to run over existing long-haul networks

  7. aggregation(+modulation) modulation aggregation ODU2-11v9.995 Gbit/s x11 ODU4 Serial I/F110…130 Gbit/s ODU3-3v40Gbit/s x 3 Options for Ethernet Transport (Example) critical factors: time to market, link managment Physical layer aggregation vs. modulation schemes CPE Device CPE Device 10 Lane100m PMD 4 Lane10km PMD Ethernet UNIService Demarcation Point NE 1 NE 2 NE 3 NE 4

  8. 100GbE MAC/PCS Layer TestsAs 10GbE Frame /Block Generation / Analysis 100GbE End-to-End QoS As 10GbE Ethernet Frame Transmission Ethernet OAM Functions 100GbE /OTN Interworking Not standardized for 10GbE 100Gbit/s Interface/Signal Quality New standards- Stressed Eye/Jitter/Eye diagram t.b.d. Transmission Impairments New, dependent on implementation 100G Test Applications – What’s different? Test requirements Compare to 10GbE

  9. JDUS T&M Technical Approach • Cooperation with Component and System Manufacturers • Front ends • Fast digital circuits • Hooks“ for measurement applications in 100GbE components • Participation in Research Programs • Packet100 (planned) • Active Participation in Standardization • Tracking interface definition and system specification • Definition and standardization of measurement methods and instruments

More Related