Re: [STDS-802-3-EPOC] Delay through the PHY
Mark,
I think there is value in clarifying an action item, if it is already on the
list of things to be done. I think, though, that getting PCS and PMA details
completed should come first. Then it is easy to asses delay (min/max)
imposed by individual layers and functions and then add tolerances on top,
based on feedback from implementors.
As a side note - a TBD could be emphasized with an editorial note indicating
that the value is under discussion and maintained in the draft even when it
goes into WG ballot. It will likely attract plenty of comments, but it is
something we can deal with when we get to that stage of the project.
Marek
From: Mark Laubach [mailto:laubach@xxxxxxxxxxxx]
Sent: Tuesday, December 9, 2014 12:33 PM
To: STDS-802-3-EPOC@xxxxxxxxxxxxxxxxx
Subject: Re: [STDS-802-3-EPOC] Delay through the PHY
Hi Duane,
I've read Marek's email response and agree. I think we need to talk to a
contribution on the topic so that we are grounded with respect to reference
points as well as after the draft has filled in functional "holes".
Without these, I feel there is not much merit in an ungrounded or open-ended
discussion at this time.
Perhaps add or clarify this in the work items list?
Mark
From: Duane Remein [mailto:Duane.Remein@xxxxxxxxxx]
Sent: Tuesday, December 09, 2014 6:46 AM
To: STDS-802-3-EPOC@xxxxxxxxxxxxxxxxx
<mailto:STDS-802-3-EPOC@xxxxxxxxxxxxxxxxx>
Subject: [STDS-802-3-EPOC] Delay through the PHY
In Cl 101 we have the following statement: "The actual delay is
implementation dependent but an implementation shall maintain a combined
delay variation through RS, PCS, and PMA sublayers of no more than TBD
time_quantum (see 64.2.2.1) so as not to interfere with the MPCP timing and
operation."
We have touched on this in a number of meetings but so far we have not had
any proposals on how to fix the delay through the PHY.
Would it be beneficial to discuss this in tomorrow's call?
Best Regards,
Duane
FutureWei Technologies Inc.
duane.remein@xxxxxxxxxx <mailto:duane.remein@xxxxxxxxxx>
Director, Access R&D
919 418 4741
Raleigh, NC
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