100GbE Single Channel Connection for Data Centers Avi Shabtai, CEO

100GbE Single Channel Connection for
Data Centers
Avi Shabtai, CEO
[email protected]
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”
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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
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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
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Benefits of Single Wavelength Solutions
• Significant savings in infrastructure build
•
•
•
•
•
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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
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“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
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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
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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
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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
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Single Wavelength Solution
Both solutions can achieve the required performance at the
right cost and power expectations
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On a Final Note….
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Thank you
Questions?
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