Re: [STDS-802-3-EPOC] [802.3_EPOC] Synchronization Eval Criteria for EPoC - Presentation for Jan. 8 Eval Criteria Ad Hoc Call
Bill,
My two cents on that would be simple - a valuable contribution, but adopting
such requirements without even knowing if they are achievable, is at least
premature. We do not have any working models that would allow to estimate
whether such stringent requirements are achievable.
Furthermore, despite multiple indications from my side, the support for IEEE
Std 802.3bf is being still ignored. Without it, I do not know how you can
even think of getting to the level of precision you're suggesting. The delay
through each layer in the EPoC PHY needs to be known if we can ever hope to
get 1588v2 to the precision level you're showing.
Regards
Marek
-----Original Message-----
From: Bill Powell [mailto:bill.powell@xxxxxxxxxxxxxxxxxx]
Sent: Tuesday, January 08, 2013 20:30
To: STDS-802-3-EPOC@xxxxxxxxxxxxxxxxx
Subject: [802.3_EPOC] Synchronization Eval Criteria for EPoC - Presentation
for Jan. 8 Eval Criteria Ad Hoc Call
Hello All,
I've attached a presentation that I plan to present during the Eval Criteria
ad hoc call tomorrow (Jan. 9). Some of you may have seen most of this
presentation in a different forum, but I'm bringing this into 802.3bn
through the Eval criteria Ad Hoc for further discussion, with a recommended
performance limit for time and frequency transfer error over the EPoC link
on Slide 17 (new slide).
If the group thinks that it would be useful to present to the whole 802.3bn
group, I can also submit it for presentation for the upcoming Phoenix or a
future 802.3bn meeting.
Regards,
Bill
--
Bill Powell
Alcatel-Lucent
Fixed Access Systems Engineering
2301 Sugar Bush Road
Raleigh, NC 27612
bill.powell@xxxxxxxxxxxxxxxxxx
(O) 919-850-6462
(Cell) 919-614-3225
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