Re: [802.3_NGEPON] Call for agenda items -- weekly consensus building for IEEE 802.3ca (100G-EPON)

["Harstead, Ed (Nokia - US)" <ed.harstead@xxxxxxxxx>]

Marek,

 

I hope this will clarify:

 

We passed a motion in last meeting that allows 10G and 25G upstream wavelengths to use either 1270 or 1310 nm (but does not allow the 1270 nm option in the case of 10G EPON ONUs on the same ODN).  Therefore we already have two options for .3ac 10G upstream wavelengths, and our new proposal does not add any additional wavelength options.  Our new proposal does not add any additional ONU variants either.  The only addition is a new OLT variant. 

 

The benefit of the new greenfield-optimized OLT variant is that 10G upstream from 25/10 ONUs and 25G from 25G/25G ONUs do not have to share the same TDM channel.  We have certainly heard that operators dislike 10G + 25G sharing. 

 

Hope that helps,

Ed

 

From: Marek Hajduczenia [mailto:mxhajduczenia@xxxxxxxxx]
Sent: Tuesday, August 15, 2017 2:58 PM
To: Harstead, Ed (Nokia - US) <ed.harstead@xxxxxxxxx>; STDS-802-3-NGEPON@xxxxxxxxxxxxxxxxx
Subject: RE: [802.3_NGEPON] Call for agenda items -- weekly consensus building for IEEE 802.3ca (100G-EPON)

 

Ed,

 

I find discussion on slide 3 confusing, in that 10G US wavelength for 802.3ca devices, per your earlier slides, is around 1310nm, which makes sense, given previous discussions. On slide 3, you seem to imply that we really have two 10G US wavelengths that can be picked and chosen, as needed, depending on whether an operator plans to use 10/10G-EPON at all or not. Seems to me we are adding way too much rope for ourselves down the road, as far as number of different optical modules is concerned

 

I am OK with your Bfx and Bfg wavelength plans, but I do not see any need for Gf plan and added confusion to the table.

 

Marek

 

From: Harstead, Ed (Nokia - US) [mailto:ed.harstead@xxxxxxxxx]
Sent: Tuesday, August 15, 2017 10:54 AM
To: STDS-802-3-NGEPON@xxxxxxxxxxxxxxxxx
Subject: Re: [802.3_NGEPON] Call for agenda items -- weekly consensus building for IEEE 802.3ca (100G-EPON)

 

Here is the contribution on 802.3ca 10G US channels in greenfield.

 

Ed

 

From: Curtis Knittle [mailto:C.Knittle@xxxxxxxxxxxxx]
Sent: Tuesday, August 15, 2017 9:18 AM
To: STDS-802-3-NGEPON@xxxxxxxxxxxxxxxxx
Subject: [802.3_NGEPON] Call for agenda items -- weekly consensus building for IEEE 802.3ca (100G-EPON)

 

 

Dear Colleagues,

 

We have at least one contribution for the 100G-EPON (IEEE 802.3ca) consensus building meeting scheduled for this Thursday, August 17, 11:30 am – 1:00 pm MDT.   

 

• 802.3ca 10G US channels in greenfield – Harstead/Kramer/Johnson

 

Please let me know by 5:00 pm MDT Wednesday if you have any other topics for the agenda.

 

As a reminder from the closing report of our last F2F meeting in Berlin, the following topics were deemed important for contributions:

 

• Actions:
  • Par/Objectives/Scope change
  • Power budget
    • Close on 25Gbps power budget (Ed/Dekun/Umeda)
  • MPCP/MPRS
    • Preliminary proposals for changes to channel bonding scheme (Duane, Glen)(Aug 31)
    • Discovery process / configuration / ONU capabilities field in RegREQ (Duane/Dan)
  • Fault Tolerance/Recovery/Loss of Channel
  • Wavelength plan
    • 2 versus 1 DS0 (Frank/EdH)(August 17)
  • SOA preamp/dynamic range
    • Cost and feasibility still needs to be demonstrated
  • Line coding (Postponed until after FEC decision)
  • FEC information
    • Comparisons of parity matrices and different FEC (Mark/Bill/Yin)
  • SERDES/CDR
    • Check margin for 10^-2 input BER (Yin, Ryan)
  • 50G single wavelength
    • Technical feasibility of upstream bursts (Critical path item) (Nokia) (likely September)
    • Wavelength plan
    • Power budget
    • Modulation

 

 

Thank you,

 

Curtis

 

 

 

 

Curtis Knittle

VP Wired Technologies – R&D

CableLabs

desk: +1-303-661-3851

mobile: +1-303-589-6869

c.knittle@xxxxxxxxxxxxx

 

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