100GbE Single Channel Connection for Data Centers Avi Shabtai, CEO
100GbE Single Channel Connection for Data Centers Avi Shabtai, CEO Avi.Shabtai@multi-phy.com www.multi-phy.com “It is not the strongest of the species that survives, nor the most intelligent that survives. It is the Charles Darwin one that is most adaptable to change” 2 Data Center Infrastructure Data Center Intraconnection Data Center Interconnection - 2km - 10km • Requires efficient, flexible and high throughput point to point network • Need to increase capacity per fiber while lowering TCO, power consumption and form factor • Seamless connection of switch to switch regardless of distance - no need for WDM boxes • Efficient use of fiber infrastructure - WDM for longer fiber and duplex fiber for short reach solutions need to reflect all these parameters 3 Single Wavelength Solutions for 100G Connections 10GbE on a single wavelength Natural Evolution 100GbE on a single wavelength How to increase capacity on a single wavelength? Option 1: Increase speed of optics – serial 100G – Technology is not available Option 2: Advanced modulation techniques using existing available optics • Use PAM4 Modulation • 56G symbol rate results in a 100G link 4 Benefits of Single Wavelength Solutions • Significant savings in infrastructure build • • • • • • Transmission using a single duplex fiber 100G connectivity - less connections Low power consumption Small Form Factor (QSFP) Long reach connections (80km) Flat network – easier to operate with higher efficiency • Savings in real estate, power - Mega Data Center are geographically dispersed • High capacity connection between switches allows better Data Centers operation and services Quicker, Faster, Simpler, Smaller, Cheaper…BETTER 5 “All things are difficult before they are easy”Thomas Fuller • Optical Bandwidth • • Available optical components are ~25G grade Electronics have surpassed optics • The speed of CMOS technology has reached and even exceeded optical speeds • Power Consumption Additional component is added – PAM4 encoder/decoder Computation is performed on the module Power trade off between parallel optics and CMOS device Module with parallel optics 6 Module with DSP ROSA Retimers 4*25 ROSA ROSA Parallel ROSA Optics ROSA TOSA TOSA TOSA TOSA TOSA POWER Tradeoff DSP based Phy 4*25 • • • DSP – Innovation in Optical Communications • Paradigm Shift in optical communications • Ever increasing capacity advanced modulation schemes signal processing methods Advantages • Enables usage of existing components • Ability to compensate on lower BW available and mature optics • Increased Performance - overcoming channel impairments and imperfections • Lower TCO - simplifying and reducing parallel optics • High Yield • Simple migration to 400GbE Allows usage of single wavelength to transmit 100Gbps 7 CMOS – Economics of Scale • CMOS has always been the most effective way to reduce cost and power consumption, while increasing performance • Leverage an ecosystem manufacturing billions of devices • Easier to upgrade technology (Moore’s law) – leverage on progress driven by other huge markets • Usage of CMOS technology to squeeze the maximum out of optics = do more with what you have = a continual approach 8 Single Wavelength Solution Both solutions can achieve the required performance at the right cost and power expectations 9 On a Final Note…. 10 Thank you Questions? 11
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