400G PAM4 The Wave of the Future - Ecoc Exhibition Focus 2017... · 400G PAM4 –The Wave of the...
Transcript of 400G PAM4 The Wave of the Future - Ecoc Exhibition Focus 2017... · 400G PAM4 –The Wave of the...
![Page 1: 400G PAM4 The Wave of the Future - Ecoc Exhibition Focus 2017... · 400G PAM4 –The Wave of the Future ECOC 2017 Michael G. Furlong - Senior Director, ... 56Gb PAM4 56Gb NRZ PAM4](https://reader030.fdocuments.us/reader030/viewer/2022013110/5b6d55eb7f8b9aa5478cb3a3/html5/thumbnails/1.jpg)
400G PAM4 – The Wave of the Future
ECOC 2017
Michael G. Furlong - Senior Director, Product [email protected]
![Page 2: 400G PAM4 The Wave of the Future - Ecoc Exhibition Focus 2017... · 400G PAM4 –The Wave of the Future ECOC 2017 Michael G. Furlong - Senior Director, ... 56Gb PAM4 56Gb NRZ PAM4](https://reader030.fdocuments.us/reader030/viewer/2022013110/5b6d55eb7f8b9aa5478cb3a3/html5/thumbnails/2.jpg)
2Inphi Proprietary and Confidential 2Inphi Proprietary and Confidential
100G is Ramping in the Cloud
100G Now Shipping (~2H2016)― Numerous Market Reports
― Millions of Ports/Year
Driven by Cloud TOR/Leaf/Spine Switching― Multiple Suppliers of 100GE Switches
― Numerous Optical Module Developers
― Low Cost DAC for Server 100G Breakout
― Competitive Pricing
Network Traffic Continues to Grow― Doubling Year/Year
― Data-intensive Applications
― Drives the Switch Bandwidth
Switch Bandwidth 400G PAM4
![Page 3: 400G PAM4 The Wave of the Future - Ecoc Exhibition Focus 2017... · 400G PAM4 –The Wave of the Future ECOC 2017 Michael G. Furlong - Senior Director, ... 56Gb PAM4 56Gb NRZ PAM4](https://reader030.fdocuments.us/reader030/viewer/2022013110/5b6d55eb7f8b9aa5478cb3a3/html5/thumbnails/3.jpg)
3Inphi Proprietary and Confidential 3Inphi Proprietary and Confidential
256x100G
PAM4
nx100G (PAM4)
25Tb+
Data Center Switch/Optics Transitions
Sw
itch
ing
So
luti
on
s
Ele
ctr
ical
Inte
rface
Op
tics
128/256x50G
PAM4
8x50G (PAM4)
OSFP
QSFP-DDDR4
FR4
LR8ZR
FR8
SR8
Others….Public
Announcements
6.4/12.8Tb
128/256x25G
NRZ
Others….
4x25G (NRZ)
QSFP28
SR4
ER4LR4
PSM4
CWDM4
CLR4
COLORZ
Public
Announcements
3.2/6.4Tb
![Page 4: 400G PAM4 The Wave of the Future - Ecoc Exhibition Focus 2017... · 400G PAM4 –The Wave of the Future ECOC 2017 Michael G. Furlong - Senior Director, ... 56Gb PAM4 56Gb NRZ PAM4](https://reader030.fdocuments.us/reader030/viewer/2022013110/5b6d55eb7f8b9aa5478cb3a3/html5/thumbnails/4.jpg)
4Inphi Proprietary and Confidential 4Inphi Proprietary and Confidential
Data Center Port Speed Transitions
Arista Networks Confidential 6
Ethernet Speed Transitions by Lane Speed
Lane Speed 10Gbps 25Gbps 50Gbps 100Gbps
1X 10G 25G 50G 100G
2X — 50G 100G 200G
4X 40G 100G 200G 400G
8X — — 400G 800G
Availability 2011 2015 2018 2020
Server Interface
Leaf-Spine Interface
4 Years 3 Years 2 Years
Source: Arista
![Page 5: 400G PAM4 The Wave of the Future - Ecoc Exhibition Focus 2017... · 400G PAM4 –The Wave of the Future ECOC 2017 Michael G. Furlong - Senior Director, ... 56Gb PAM4 56Gb NRZ PAM4](https://reader030.fdocuments.us/reader030/viewer/2022013110/5b6d55eb7f8b9aa5478cb3a3/html5/thumbnails/5.jpg)
5Inphi Proprietary and Confidential 5Inphi Proprietary and Confidential
Relevant 400G Standards/MSAs
<100m
<500m
<2km
<10km
Data Center Network Topology
- 107.8x22.6x9.0mm
- Power < 16W
- TOR L/S Switches
- In Development
CFP8
- 102x40x9.5mm
- Power < 16W
- Routers
- Sampling
- 75.85x18.35x8.5mm
- Power < 14W
- TOR L/S Switches
- In Development
- Defines Electrical
I/O, Connectors,
Thermals, etc.
- In Development
Electrical Standards
802.3bs
400GAUI-8 (CDAUI-8)
IEEE802.3bs OIF
C2C CEI 56G PAM4 VSR
C2M CEI 56G PAM4 MR
802.3cd 50G PAM4 DAC / BKPL
802.3
802.3bs - Target Standard Complete Dec’17
Optical Standards400Gbase- Reach Fiber Speed Spec
LR8 10km SMF 8x50G PAM4 802.3bs
LR4 10km SMF 4x100G PAM4 MSA
FR8 2km SMF 8x50G PAM4 802.3bs
FR4 2km SMF 4x100G PAM4 MSA
DR4 500m P-SMF 4x100G PAM4 802.3bs
SR8 100m MMF 8x50G PAM4 802.3cd
![Page 6: 400G PAM4 The Wave of the Future - Ecoc Exhibition Focus 2017... · 400G PAM4 –The Wave of the Future ECOC 2017 Michael G. Furlong - Senior Director, ... 56Gb PAM4 56Gb NRZ PAM4](https://reader030.fdocuments.us/reader030/viewer/2022013110/5b6d55eb7f8b9aa5478cb3a3/html5/thumbnails/6.jpg)
6Inphi Proprietary and Confidential 6Inphi Proprietary and Confidential
So Why 50G PAM4?
12.8Terabit Switch Bandwidth Options
1. Double the Number of Existing I/O?
● 256 I/O -> 512 I/O at 28Gbaud
● Issues: Die Size, Packaging, Cost
2. Double the Speed on Each I/O
● 28Gbaud NRZ -> 56Gbaud NRZ
● Issues: Channel Loss, SerDes Complexity, Cost, Power
3. Advanced Modulation PAM4
● Same Number of I/O
● Same 28Gbaud Speed
3 Meter DAC – Insertion Loss
56Gb PAM4
56Gb NRZ
PAM4 Meets the Performance,
Power, and Cost objectives for
400G Cloud Data Centers
Benefits of 50Gbps PAM4― Use Existing (and Fewer) 28Gb Optics
― Same Copper Infrastructure● 3 Meter DAC
● Backplanes & Connectors
― Switches can Mix / Match Cables and Optics up to 100Km in Reach
![Page 7: 400G PAM4 The Wave of the Future - Ecoc Exhibition Focus 2017... · 400G PAM4 –The Wave of the Future ECOC 2017 Michael G. Furlong - Senior Director, ... 56Gb PAM4 56Gb NRZ PAM4](https://reader030.fdocuments.us/reader030/viewer/2022013110/5b6d55eb7f8b9aa5478cb3a3/html5/thumbnails/7.jpg)
7Inphi Proprietary and Confidential 7Inphi Proprietary and Confidential
Next Generation 400G Optical Modules
ADC- Multi-tap FFE
- Multi-tap DFE
- Slicer
8:4
Demultiplex
PAM4
Mapping &
Pre-Coder
Host Interface
8:4
Multiplex
PAM4
Mapping &
Pre-Coder
- Multi-tap FIR
- Level Control DAC
PowerLow-speed
CMOS
REFCLK
(If Needed)
PLL/Clocking
Tx FIR
Rx EQCTLE
H
O
S
T
L
I
N
E
8x50G
PAM4
TIA
(x4)
ROSA
(x4)
Linear
Driver
(x4)
TOSA
(x4)
uCPower
RegMisc
OSFP / QSFP-DD / COBO
4
4
-3
-1
+1
+3
Sample
Levels
Control
Interface
OIF CEI 56G VSR
IEEE 400GAUI-8
DSP Line Interface
Clock Recovery
Control Loops
Calibration Algorithms
Diagnostics
Internal Histograms
/Eye DiagramsSystem BER Sweeps
0
Channel SNR
21dB
• Real Time / Easy Access
• Non-destructive
• User Programmable Thresholds
Opt
Mux/
Dmux(FR4/LR4)
PAM4 DSP
8x50G
PAM4
4x
100G
PAM4
4x
100G
PAM4
![Page 8: 400G PAM4 The Wave of the Future - Ecoc Exhibition Focus 2017... · 400G PAM4 –The Wave of the Future ECOC 2017 Michael G. Furlong - Senior Director, ... 56Gb PAM4 56Gb NRZ PAM4](https://reader030.fdocuments.us/reader030/viewer/2022013110/5b6d55eb7f8b9aa5478cb3a3/html5/thumbnails/8.jpg)
8Inphi Proprietary and Confidential 8Inphi Proprietary and Confidential
DSP Advantages For 400G PAM4
-0.5 0 0.5-4
-3
-2
-1
0
1
2
3
4
Time
Am
plit
ude
Eye Diagram
-0.5 0 0.5-1.5
-1
-0.5
0
0.5
1
1.5
Time
Am
plit
ude
Eye Diagram
PAM4 / NRZ
Eyes
-0.5 0 0.5-4
-3
-2
-1
0
1
2
3
4
Time
Am
plit
ude
Eye Diagram
-0.5 0 0.5-2
-1.5
-1
-0.5
0
0.5
1
1.5
2
Time
Am
plit
ude
Eye Diagram
Small
ISI
Plus Noise
PAM4 More Sensitive to ISI and Noise Versus NRZ
― PAM4 has 1/3rd Eye Opening
DSP Equalization
― High Performance (DFE/FFE)
― High Number of Taps
― Proven Algorithms
DSP Performance
― Low Risk
― Enables Lower Cost Optics
Low-power CMOS Process
― 16nm Scaling 7nm
― Meets Module Power Targets
PAM4 DSPs are Low Risk and Enable Low Cost Optics
Meeting the 400G Module Power
![Page 9: 400G PAM4 The Wave of the Future - Ecoc Exhibition Focus 2017... · 400G PAM4 –The Wave of the Future ECOC 2017 Michael G. Furlong - Senior Director, ... 56Gb PAM4 56Gb NRZ PAM4](https://reader030.fdocuments.us/reader030/viewer/2022013110/5b6d55eb7f8b9aa5478cb3a3/html5/thumbnails/9.jpg)
9Inphi Proprietary and Confidential 9Inphi Proprietary and Confidential
Next Generation Cloud – 400G PAM4 Summary
Network Traffic is Driving Switch Bandwidth
Big Data Movement
― Video
― Artificial Intelligence
― IoT
― Many Others…
Cloud
Data
Centers
Switch/Optics
Infrastructure
QSFP28QSFP-DD
OSFP
Switch Bandwidth is driving 400G Interfaces
Next Generation Switches are Coming to Market
Industry Split on Module Form Factor
Optical &
Electrical
Signaling
56Gbps PAM-4 Required to Achieve 12.8T Switch Bandwidth
Optical & Electrical Industry Standards Based on PAM4
PAM4 DSP’s Are Shipping Today
![Page 10: 400G PAM4 The Wave of the Future - Ecoc Exhibition Focus 2017... · 400G PAM4 –The Wave of the Future ECOC 2017 Michael G. Furlong - Senior Director, ... 56Gb PAM4 56Gb NRZ PAM4](https://reader030.fdocuments.us/reader030/viewer/2022013110/5b6d55eb7f8b9aa5478cb3a3/html5/thumbnails/10.jpg)
10Inphi Proprietary and Confidential 10Inphi Proprietary and Confidential
Low PowerHigh Performance
Long Reach
Fast Time-to-market
Competitive Cost
Dedicated Customer Support
Best Quality
Inphi’s Complete Platform to Enable Customer Success
Driver
SiPho
or
Partner Optics
TiA
Optical Platform
PAM4 DSP
Coherent DSP
![Page 11: 400G PAM4 The Wave of the Future - Ecoc Exhibition Focus 2017... · 400G PAM4 –The Wave of the Future ECOC 2017 Michael G. Furlong - Senior Director, ... 56Gb PAM4 56Gb NRZ PAM4](https://reader030.fdocuments.us/reader030/viewer/2022013110/5b6d55eb7f8b9aa5478cb3a3/html5/thumbnails/11.jpg)
11Inphi Proprietary and Confidential 11Inphi Proprietary and Confidential
Live PAM4 DSP Demonstration at ECOC 2017
Highest
Performance 50G
PAM4 DSP
Integrated
EML/VCSEL
Drivers
10G-400G
Backplane Retimer
IEEE FEC/PCS
Booth #337
400G
QSFP-DD/OSFP
Optics
COLORZ-Lite™ QSFP-28
100Gbps PAM4
20km Campus
![Page 12: 400G PAM4 The Wave of the Future - Ecoc Exhibition Focus 2017... · 400G PAM4 –The Wave of the Future ECOC 2017 Michael G. Furlong - Senior Director, ... 56Gb PAM4 56Gb NRZ PAM4](https://reader030.fdocuments.us/reader030/viewer/2022013110/5b6d55eb7f8b9aa5478cb3a3/html5/thumbnails/12.jpg)
Thank you