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Stefan Voll, VP Product Management, Coriant
Making 100G/200G Economical for DCI
Nice, June 29, 2016
Revolution in content delivery model drives
changes in network architecture
2 © 2015 Coriant. All rights reserved.
35TB total country-
to-country capacity Internet backbone
Regional internet traffic
Need
• Optimize for DC and CDN based service delivery model.
• Keep pace with DC evolution: higher speed, more
capacity, better space utilization, lower power consumption
and more openness
Ken Florance, Netflix’s VP of
content delivery: “Our peak traffic
is more than that … . Our scale is
actually larger than the
international capacity of the
Internet.”
http://www.wired.com/2016/03/netflixs-
grand-maybe-crazy-plan-conquer-world/
Levers
• DCI optimized networks: Disaggregation, purpose built DCI solutions
• 100G+ interface technology: PAM4, interoperable plain vanilla, flexi-rate and high baud rate
3 © 2016 Coriant. All rights reserved.
Source: IHS/Infonetics: 100G+ and ROADM Strategies, Global Service Provider Survey (Nov. 2015)
DCI Applications Constraints Open Line System Drivers
Cost/port and power density lead but …
… ease of integration and DC
automation is key, and… … requirement for Best-in-
Class functions emerging
Drivers for Purpose Built DCI Solutions
Disaggregation
• Why disaggregation
– Break incumbency and vendor lock-in, compete on a “best of breed” basis
– Quicker and decoupled cycles of innovation in each function
– Value to be gained from OpEx improvements, not just CapEx reduction
– Enables deployment of solutions targeted to requirements and business models of different providers
• What disaggregation is not
– Does not equal commodity
– Does not necessarily equal white box (though doesn’t exclude it)
– Is not about lowest common denominator
4
Disaggregation of Best-of-Breed Functions
5
Powerful Electronic Processing
Silicon Photonics
Integration
+ + Embedded Software
Intelligence
Transmission/Transponder
Routing
SDN Providing End-to-End Control and Automation
Optical Line System
• Access/Metro to LH/ULH • Full automation & planning • Best reach and capacity • High degree of integration • High resiliency
Purpose Built Disaggregated Transmission Solution
Key Requirements
6
Enabling lowest capex
and footprint
Based on electronic &
photonic integration
High
Density
Open, simple, NBIs &
APIs. Can operate in DC
(SDN) or Telecom
(OSS/BSS) environments.
Able to be coupled with
any open line systems.
Open
Platform
Low
Power
Low power
consumption per
100G, dramatically
reducing energy costs
Low first cost per 100G
service. Modular
concept and pluggable
interfaces to enable
true pay as you grow
Low First
Cost
Simplified sparing
Flexible configurations
Investment protection
Pay-as-you-grow
Modularity
✓ ✓ ✓ ✓ ✓
Purpose Built Disaggregated Transmission Solution
Key Requirements
7
High Reach
and Capacity
Reach Extension
Metro
Short Reach
Pt-Pt
Passive CWDM/DWDM Next Gen Metro/LH DWDM DWDM in Pluggable Form Factor • Simple passive fixed filter
• Range up to roughly 50km
• Amplified DWDM functions used only
where and when needed
• High degree of integration
• Card level functions in pluggable form
factor
• Optimized reach, capacity, power
• Zero-touch E2E automation
• Best performance under
challenging fiber conditions
• Increased resilience
DWDM Mux/Demux
Channel
Power
Monitor WSS
EVOA
Fixed
Power
Amplifier
Variable
Gain
Amplifier
Other Considerations of Disaggregation
• How does the network operator ensure end-to-end optical
performance?
• Who is responsible for support and troubleshooting across domain
boundaries?
• How does the industry achieve interop for OLS with different
transponder technologies and suppliers?
• Pricing models still need to reflect value while changing to reflect
evolving technology and applications.
• There are other models of disaggregation for the industry to consider
8
100G+ interfaces segment into applications
Flexi-rate bandwidth variable transponders (BVT) • Engineered for highest performance, flexibility
and density
• SW switchable modulation and band-width-reach trade-off
Interoperable 100G • Engineered for lowest cost with medium
performance
• Interoperation through quasi-standard Staircase FEC (OpenROADM, black link)
• Pluggable options
Direct detect • White-light or colored PAM4
• Dispersion compensation needed
• Pluggables (QSFP28 or CFPx)
9
80km 600km 1,000km 4,500+km
<80km
Metro
Regio
ULH / submarine
Direct
detect
Inte
rface c
osts
© Coriant 2016. All rights reserved. Confidential
Relative Strengths of DCI100G(+) Options
Direct detect 100G 100G plain vanilla Flexi-rate BVT
Modulation 2x50G PAM4
1x100G PAM4
PM-QPSK with staircase
HD FEC + proprietary
BPSK, QPSK, 8QAM,
16QAM, 64QAM and more
Form factor QSFP28, CFP2 CFP2-ACO + on-board
DSP
CFP2-ACO / on-board
optics + on-board DSP
Availability 2x50G: Now
1x100G: 2017
Now 32-45Gbaud: Now
64+Gbaud: 2017
Cost per bit Lowest Low Middle
Power per bit <4.5W ~18-25W ~40W
Reach 80-100km, needs specifically
engineered line system
HD-FEC: 600km
SD-FEC: > 2000km
From single-span to
transpacific
Interoperability w/ 3rd
party
Depends on the PAM4 chip
set
Yes (in HD-FEC mode) No
Fiber capacity 4.0 - 9.6Tb/s 9.6Tb/s 4.0 - 40Tb/s
How to make 100G/200G Economicalal for DCI?
11
© 2016 Coriant. All rights reserved.
Application specific 100G+ technology in best-of-breed
disaggregated DCI optimized products with open control interfaces!
Transmission/Transponder
Routing
SDN Control
Optical Line System Coriant Groove™ G30 3.2Tbps Capacity in 1RU
0.45W per Gb/s
Innovative Modular Design
Coriant Pluggable
Optical Layer
Coriant hiT7300
Inventory
Code
Revision
DWDM
COMMOut / In
Express
OMD8-28Out / In Out / In Out / In
Out / In Out / In Out / In Out / InIn / Out Out / In
195.10
194.40 194.50
194.80 194.90 195.00
194.60 194.70
Inventory
Code
Revision
DWDM
COMMOut / In
Express
OMD8-37Out / In Out / In Out / In
Out / In Out / In Out / In Out / InIn / Out Out / In
195.30 195.40 195.50 195.60
195.70 195.80 195.90 196.00
Inventory
Code
Revision
DWDM
COMMOut / In
Express
OMD8-28Out / In Out / In Out / In
Out / In Out / In Out / In Out / InIn / Out Out / In
195.10
194.40 194.50
194.80 194.90 195.00
194.60 194.70
Inventory
Code
Revision
DWDM
COMMOut / In
Express
OMD8-37Out / In Out / In Out / In
Out / In Out / In Out / In Out / InIn / Out Out / In
195.30 195.40 195.50 195.60
195.70 195.80 195.90 196.00
Inventory
Code
Revision
DWDM
COMMOut / In
Express
OMD8-28Out / In Out / In Out / In
Out / In Out / In Out / In Out / InIn / Out Out / In
195.10
194.40 194.50
194.80 194.90 195.00
194.60 194.70
Inventory
Code
Revision
DWDM
COMMOut / In
Express
OMD8-37Out / In Out / In Out / In
Out / In Out / In Out / In Out / InIn / Out Out / In
195.30 195.40 195.50 195.60
195.70 195.80 195.90 196.00
Inventory
Code
Revision
DWDM
COMMOut / In
Express
OMD8-28Out / In Out / In Out / In
Out / In Out / In Out / In Out / InIn / Out Out / In
195.10
194.40 194.50
194.80 194.90 195.00
194.60 194.70
Inventory
Code
Revision
DWDM
COMMOut / In
Express
OMD8-37Out / In Out / In Out / In
Out / In Out / In Out / In Out / InIn / Out Out / In
195.30 195.40 195.50 195.60
195.70 195.80 195.90 196.00
Inventory
Code
Revision
DWDM
COMMOut / In
Express
OMD8-28Out / In Out / In Out / In
Out / In Out / In Out / In Out / InIn / Out Out / In
195.10
194.40 194.50
194.80 194.90 195.00
194.60 194.70
Inventory
Code
Revision
DWDM
COMMOut / In
Express
OMD8-37Out / In Out / In Out / In
Out / In Out / In Out / In Out / InIn / Out Out / In
195.30 195.40 195.50 195.60
195.70 195.80 195.90 196.00
Inventory
Code
Revision
DWDM
COMMOut / In
Express
OMD8-28Out / In Out / In Out / In
Out / In Out / In Out / In Out / InIn / Out Out / In
195.10
194.40 194.50
194.80 194.90 195.00
194.60 194.70
Inventory
Code
Revision
DWDM
COMMOut / In
Express
OMD8-37Out / In Out / In Out / In
Out / In Out / In Out / In Out / InIn / Out Out / In
195.30 195.40 195.50 195.60
195.70 195.80 195.90 196.00
Coriant
Transcend™ SDN
Thank You.