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[802.3_NGECDC] Definition of "Breakout"?

To: STDS-802-3-NGECDC@xxxxxxxxxxxxxxxxx
Subject: [802.3_NGECDC] Definition of "Breakout"?
From: John D'Ambrosia <jdambrosia@xxxxxxxxx>
Date: Thu, 20 Aug 2020 09:03:30 -0400
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All,

As I explore the scope for the Beyond 400 GbE effort, I have been having a number of conversations related to “breakout”

While we all discuss it – I have never seen some actual formal definition that is agreed upon within 802.3. So I would like to get some input.

I am going to start with breakout actually does and solicit input before proposing some definition to potentially use.

I see break out of the following –

AUI
Related PHYs

Backplane
Twin-ax cabling based on multiple different pairs
SR optics based on parallel MMF
DR optics based on parallel SMF

FR / LR / ER optics – I don’t see as being part of breakout.

Thoughts?

John

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- Re: [802.3_NGECDC] Definition of "Breakout"?
  - From: Ali Ghiasi
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