Presentation on theme: "Using 10 Gigabit Ethernet in Volume Applications Brad Booth, Director Advanced Products Quake Technologies Blaine Kohl, VP of Marketing Tehuti Networks."— Presentation transcript:
Using 10 Gigabit Ethernet in Volume Applications Brad Booth, Director Advanced Products Quake Technologies Blaine Kohl, VP of Marketing Tehuti Networks
10GBASE-T Overview Physical layer device (PHY) –64B/65B encoding (similar to 10GBASE-R) –Low density parity check framing –Double-square constellation (PAM16 w/ ½ the code points) –Tomlinson-Harashima precoder Reach –Cat 6 up to 55 m; Cat 6A and Cat 7 up to 100 m –Cat 5 and 5e are below the performance range required Power –All that complexity costs –Estimates range from 10 to 15 W –Short reach mode (up to 30 m) has a target of sub 4 W
10GBASE-T Market 200520062007200820092010 Standard Development Pre-Std Std-Compliant Early Adopters Market Influencers Volume Adoption Early adopters: national labs, supercomputing Market influencers: banks, hospitals, gov’t., video Volume adoption: corporate data centers UTP copper cabling is preferred by IT departments – –Therefore, 10GBASE-T is preferred over optics and CX4
Impact to Network Cable infrastructure –Alien crosstalk has the biggest impact on UTP cabling –Shielded cabling has better performance, but higher cost –Infrastructure could require an upgrade Energy requirements –Alternatives currently have lower power –Short reach & better cable reduce power requirement System impact –Bandwidth still exceeds volume server performance capability
Trade-offs TechnologyDate of Standard Reach (m - max) Latency † (ns - RT) Power (W - typ) 10GBASE-SRJune 20023006002 10GBASE-CX4Feb. 2004152501 10GBASE-TJune 2006*100 30 ‡ 2750 1500 12 4 10GBASE-LRMSept. 2006*22015003 † Latency is as specified in standard or draft standard and includes XAUI PHY interface. * Projected standards ratification date. ‡ Short reach mode: latency and power are not specified in the draft standard and are only estimates. Optics (SR & LRM) driving to new form factor – SFP+ – –Goal is to reduce cost and power CX4 cable is expensive & reach is limited – –Target applications are inter-rack and intra-rack
Interoperability UNH-IOL has test suites for: –10GBASE-SR and 10GBASE-CX4 –Both have existed in the market for years Ethernet Alliance and UNH-IOL –Partnering for demonstration of emerging technologies 10GBASE-T 10GBASE-LRM –Coordinating development of test suites
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