Dear >400GbE Study Group Participants,
I had a conversation with our very capable SG Chair, Mr. John D’Ambrosia, about what was the actionable take away point from my presentation for the SG.
The best way to summarize it is to point at the 5 Criteria Adopted by HSSG (802.3ba TF precursor) and approved by 802.3 at July 2007 Plenary. These have stood the test of time, and we would should use them as examples of how to accurately
describe market needs and state of technology.
Broad Market Potential excerpt:
Prior experience scaling IEEE 802.3 and contributions to the study group indicates:
·
40 Gb/s Ethernet will provide approximately the same cost balance between the LAN and the attached stations as 10 Gb/s Ethernet.
·
The cost distribution between routers, switches, and the infrastructure remains acceptably balanced for 100 Gb/s Ethernet.
Given the topologies of the networks and intended applications, early deployment will be driven by key aggregation & high-bandwidth interconnect points. This is unlike the higher volume end system application typical
for 10/100/1000 Mb/s Ethernet, and as such, the initial volumes for 100 Gb/s Ethernet are anticipated to be more modest than the lower speeds. This does not imply a reduction in the need or value of 100 Gb/s Ethernet to address the stated applications.
Technical Feasibility excerpt:
The proposed project will build on the array of Ethernet component and system design experience, and the broad knowledge base of Ethernet network operation.
- The experience gained in the development and deployment of 10 Gb/s technology is applicable to the development of specifications for components at higher speeds. For example, parallel
transmission techniques allow reuse of 10 Gb/s technology and testing.
- Component vendors have presented data on the feasibility of the necessary components for higher speed solutions. Proposals, which either leverage existing technologies or employ
new technologies, have been provided.
Thank you
Chris
From: Chris Cole
Sent: Monday, March 22, 2021 11:03 AM
To: STDS-802-3-B400G@xxxxxxxxxxxxxxxxx
Cc: jdambrosia@xxxxxxxxx
Subject: RE: [802.3_B400G] 22 Mar Contributions Update
Dear >400GbE Study Group Participants,
We ran out of time during my presentation slot to give everyone an opportunity to ask questions and make comments.
Cedric Lam had an important projection to share, which is that 800G duplex fiber modules will ship in 2022.
In his presentation, Ali Ghiasi pointed out that 800GbE standards work started in the Ethernet Technology Consortium (ETC) before the start of the >400GbE SG. Brad Booth, ETC Chair, and Rob Stone, ETC Technical WG Chair, informed me that
this started in 2019.
So my predictions are crumbling before the ink is dry on the presentation, and the 800GbE table entries need the below update.
|
1st 802.3 Project |
designation |
>400GbE |
>400GbE |
|||
|
GbE Rate |
800 |
800 |
||||
|
work start |
2021 |
2019 |
||||
|
published |
2025 |
|
2025 |
|||
|
1st shipment |
year |
2023/24 |
2022 |
|||
|
type |
LR8 |
“LR8” |
||||
|
wavelength |
8x100 |
8x100 |
||||
|
I/O |
8x100 |
8x100 |
||||
|
form factor |
OSFP |
QSFP-DD |
OSFP |
|||
As Brad cautioned us on the call, and Cedric did similarly after the call, predictions based on the past should be taken with a grain of salt as new trends and dependencies are rapidly developing. I will redouble my efforts and more carefully
study the crystal color energy wheel to find a more reliable color.
Chris
From: John D'Ambrosia <jdambrosia@xxxxxxxxx>
Sent: Saturday, March 20, 2021 5:17 PM
To: STDS-802-3-B400G@xxxxxxxxxxxxxxxxx
Subject: [EXTERNAL]: [802.3_B400G] 22 Mar Contributions Update
All,
All meeting material for the 22 March meeting of the Mar 2021 Study Group Session have been uploaded -
https://www.ieee802.org/3/B400G/public/21_03/ghiasi_b400g_01_210322.pdf
[ieee802.org].
Regards
John D’Ambrosia
Chair, IEEE 802.3 Beyond 400 Gb/s Ethernet Study Group
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