keynote presentation
TRANSCRIPT
KEYNOTE PRESENTATION
BEYOND 400G
Presenter: John D’Ambrosia, Chair of the IEEE 802.3 Study Group
FUTUREWEI TECHNOLOGIES, INC.
www.huawei.com
Beyond 400 Gb/s Ethernet The Journey Begins
John D’AmbrosiaChair, IEEE 802.3 Beyond 400 Gb/s Ethernet Study Group
Ethernet Alliance TEF 2021 January 25, 2021
ForewordJohn D’Ambrosia ([email protected])• Chair, IEEE 802.3 Beyond 400 Gb/s Ethernet Study Group• Chair, IEEE P802.3ct, 100 GbE over DWDM Systems Task Force• Chair, IEEE P802.3cw, 400 GbE over DWDM Systems Task Force• Recording Secretary, IEEE 802 Executive Committee• Distinguished Engineer, IP Standards Team North America, Futurewei Technologies• IEEE Senior Member
Per IEEE-SA Standards Board Bylaws, August 2020At lectures, symposia, seminars, or educational courses, an individual presenting information on IEEE standards shall make it clear that his or her views should be considered the personal views of that individual rather than the formal position of IEEE.
FUTUREWEI TECHNOLOGIES, INC. Slide #3
2020 IEEE 802.3 Ethernet Bandwidth Assessment Findings
Source: https://bit.ly/802d3bwa2
FUTUREWEI TECHNOLOGIES, INC. Slide #4
This is onlyan estimateof standardcompletion
The IEEE 802.3 Beyond 400 Gb/s Ethernet Study Group
FUTUREWEI TECHNOLOGIES, INC. Slide #5
The IEEE 802 LMSC Executive Committee has chartered a Study Group under the IEEE 802.3 Ethernet Working Group to develop a Project Authorization Request (PAR) and Criteria for Standards Development (CSD) responses for:
1. Beyond 400 Gb/s Ethernet2. Physical Layer specifications for existing Ethernet rates based on Physical
Layer specifications for beyond 400 Gb/s Ethernet.
Study Group Webpage - https://www.ieee802.org/3/B400G/index.html Study Group Reflector - https://www.ieee802.org/3/B400G/reflector.html
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16
108
4
2
10 100
Inte
rfac
e W
idth
(# o
fLan
es)
Rate per Lane (Gb/s)25 50 200 400
The Basic Math of Ethernet
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The Work Needs to Begin…C
oherent
Dire
ctD
etec
t
Server
TOR / MOR / Leaf
Leaf/Spine
Router
> 100 GbE
> 400 GbE
> 400 GbE
> 400 GbEDCI
FUTUREWEI TECHNOLOGIES, INC. Slide #7
< 30 m
50 m to
500 m
500 mto
40 km
80 km
MMFTwin Axial
MMF / SMF(duplex or parallel)
Duplex SMF
DWDM SMF
Next Speed? Reach Medium
Observations – Potential Target Objectives
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§ Electrical Interfaces§ Chip-to-chip§ Chip-to-module
§ Physical Layer Specifications§ Backplane§ Twin-Ax§ MMF (current trend up to 100m)§ SMF - parallel fiber approach (current trend up to 500m)§ SMF –duplex fiber approach (2km to 40km)§ DWDM Systems
§ PMD Lane counts§ Depends on Ethernet rate selected, physical layer specification, and signaling rate per lane
§ Development of 200 Gb/s signaling would then be applicable to 200 GbE / 400 GbE electrical interfaces and various PMDs
The Job of the Study Group
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§ Project Documentation§ Objectives§ Project Authorization Request (PAR)§ Criteria for Standards Design (CSD)
§ The Questions to Answer§ What is the next rate [or rates] of Ethernet?§ What physical layer specifications will be selected as objectives?
§ Revisit existing Ethernet rates?§ How will the PAR be written?
Summary
FUTUREWEI TECHNOLOGIES, INC. Slide #10
• We are just starting a long journey….
• This is just the first of many projects to whatever new speed(s) we select§ 100 Gb/s Ethernet started in 2006!§ 8 projects targeted 100 Gb/s Ethernet
• Development of the underlying architecture will be critical§ Flexible§ Support multiple generations of solutions
THANK YOU!
FUTUREWEI TECHNOLOGIES, INC. Slide #11
If you have any questions or comments, please email [email protected]
For our TEF 2021 on-demand content go to www.ethernetalliance.org
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