Our friends at Light-Counting just published their latest optics vendor survey report. As always it’s a treasure trove of wonderful data, and it’s irresistible to play with.
A problem in the way we look at volumes is focus on counting boxes, rather than underlying technology, for example the graph on page 57 of the below referenced CFI deck. Another example is just counting modules, whose limitations were illustrated
by the recent discussion of break-out on this reflector.
Our Logic colleagues have figured how to get a true picture of switches. In describing an ASIC, not only is the total bandwidth of the BGA package listed, but also the number and speed of the of SerDes and MAC cores. Since we get some of
our best technical ideas from the Logic guys (ex. KR4 and KP4 FECs), why not learn from their approach here.
The underlying technology in optics are the wavelengths, so why not count those as well. In the below table, their volume is aggregated across all Ethernet codes for the first half of this year. There are multiple interesting observations
that arise from this perspective.
Those that have access to the LC report will find even more interesting observations in wavelength cost data averaged across all codes.
Chris
|
|
Vendor Survey, Q1 + Q2 2020 Ethernet Data, 9/17/20 |
||||
|
λ Type
|
10G λ |
25G λ |
50G λ |
100G λ |
|
|
Fiber |
Color |
Volume |
Volume |
Volume |
Volume |
|
SMF |
Gray |
5,139,912
|
1,693,126
|
28,325
|
596,158
|
|
WDM |
1,871,800
|
11,065,264
|
418,384
|
16,004
|
|
|
All |
7,011,712
|
12,758,390
|
446,709
|
612,162
|
|
|
MMF |
Gray |
8,927,088
|
8,713,686
|
787,200
|
-
|
|
WDM |
1,224,000
|
1,040,000
|
-
|
-
|
|
|
All |
10,151,088
|
9,753,686
|
787,200
|
-
|
|
From: John D'Ambrosia <jdambrosia@xxxxxxxxx>
Sent: Sunday, September 20, 2020 5:58 PM
To: STDS-802-3-NGECDC@xxxxxxxxxxxxxxxxx
Subject: [802.3_NGECDC] Draft - Beyond 400 GbE CFI Consensus Deck
All,
I have uploaded the latest version of the draft CFI Consensus Deck. Please see https://www.ieee802.org/3/ad_hoc/ngrates/public/calls/20_0928/dambrosia_nea_01_200928.pdf.
This is not the version intended for presentation at the 9/28 meeting. I will update the latest version as further modifications are made. Please note I have also updated the supporters list. If you emailed me your support, please check
the list and confirm I have added you correctly.
Regards,
John D’Ambrosia
Champion, Beyond 400 GbE CFI Consensus
Chair, IEEE 802.3 NEA Ad hoc
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https://listserv.ieee.org/cgi-bin/wa?SUBED1=STDS-802-3-NGECDC&A=1
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