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I previously commented on the 2 byte repeat parameter in the SP messages and, at the time, it was suggested that this really didn’t matter. However, I have to disagree with that opinion. In 10G-EPON we incorporated the Data Detector mechanism to determine when the beginning of the burst should occur. The mechanism depended on a delay line that essentially matched the duration of burst preamble,
burst delimiter and laser on time (i.e., sync time). In 10G-EPON this was a fixed duration. We have now made that duration variable and of arbitrary size through the setting of SP1, SP2 and SP3 and any repeats. What will the ONU be expected to accommodate with respect to maximum delay needed? Without placing a bound on this total time I don’t see how we can claim technical feasibility. If some OLT vendor decides a very long sync time is OK per the standard and an ONU cannot accommodate that long
time interoperability is not achieved, neither device is non-compliant and we have not achieved our goals. I suggest we place a reasonable limit on the total sync time in the standard and size the repeat parameters accordingly. Best Regards Duane From: Marek Hajduczenia [mailto:mxhajduczenia@xxxxxxxxx]
Dear colleagues, Attached please find the updated version of the general presentation and detailed changes to MPCP Clause, modified following the feedback on the call today. All and any comments on the content are welcome Marek From: Curtis Knittle <C.Knittle@xxxxxxxxxxxxx>
All, Please let me know if I need to revise or add to the following notes: 4/12/2018 IEEE 802.3ca 100G-EPON Task Force Work Items and Socialization ad hoc conference call
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Review of Patent Policy.
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Curtis Knittle read the Call for Potentially Essential Patents – no response to call.
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MPCP Changes (M. Hajduczenia)
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Deadlines:
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Contribution deadline for requesting
time on the agenda and draft PDF files: Monday, May 14, 2018 AoE
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See
http://www.ieee802.org/3/ca/3ca_presentproc.shtml
for details on submissions
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Draft 1.0 Comment deadline is May 7. For details, please see
http://www.ieee802.org/3/ca/email/msg00766.html
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Action Items:
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Curtis Knittle VP Wired Technologies – R&D CableLabs desk: +1-303-661-3851 mobile: +1-303-589-6869 Stay up to date with CableLabs: Read the blog and
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