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Re: [802.3_EPOC] Action items for September 2012 meeting



Jorge, 

Are you suggesting that we make such definitions part of EPoC spec? if so,
they would have to become slightly more generic, since they would need to
apply not only to PON but also any P2P Ethernet alike ... 

Marek

-----Original Message-----
From: Salinger, Jorge [mailto:Jorge_Salinger@xxxxxxxxxxxxxxxxx] 
Sent: 22 July 2012 08:49
To: STDS-802-3-EPOC@xxxxxxxxxxxxxxxxx
Subject: Re: [802.3_EPOC] Action items for September 2012 meeting

Rick,
Hal,

I, too, like the use of the term 'node' for the fiber-to-coax converter.
And, to Marek's point, speaking of definitions rather than just name, I
think that the difference between each is:

Unit: connects a customer network to a PON, which applies to EPON and EPoC.

Terminal: connects a PON to the service provider's network and terminates
the PON, which also applies to EPON and EPoC

Node: connects one or more units in a coax segment to a PON, which only
exists in EPoC

And, when the Node is combined with the Terminal, the combined device
becomes a CLT.

Of course there is more to the definitions; I'm trying to address the
differences from the EPoC perspective.

Does the above make sense?

Thanks!
Jorge


-----Original Message-----
From: Hal Roberts <Hal.Roberts@xxxxxxxxx>
Reply-To: Hal Roberts <Hal.Roberts@xxxxxxxxx>
Date: Saturday, July 21, 2012 8:58 PM
To: EPoC Study Group <STDS-802-3-EPOC@xxxxxxxxxxxxxxxxx>
Subject: Re: [802.3_EPOC] Action items for September 2012 meeting

>Rick,
>
>I do like the 'Node' terminology, whether it be OCN or FCN or CFN. You 
>are correct that 'Node' better describes the nature of the device than 
>'Unit', which implies a terminal device rather than an intermediary 
>device, which it is.
>
>You are also correct it does not contain the potentially offending "U"
>:-)
>
>Hal
>
>-----Original Message-----
>From: Rick Li [mailto:Rick.Li@xxxxxxxxxxxxxxxxxxx]
>Sent: Saturday, July 21, 2012 11:20 AM
>To: STDS-802-3-EPOC@xxxxxxxxxxxxxxxxx
>Subject: Re: [802.3_EPOC] Action items for September 2012 meeting
>
>Marek, Jorge, Hal, the TF (YES!) members,
>
>I would like to propose the following term for consideration:
>
>- OCN (optical coax Node)
>- FCN (Finer coax Node)
>
>I believe 'Node' is more appropriate to refer to such a remote field 
>device in an HFC plant.
>
>With 'Node', it also clearly differentiate from CLT and CNU, thus we 
>have
>
>- CLT as a 'Terminal' where all EPoC protocols must be 'terminated' on 
>one side
>- OCN (or FCN) as a 'Node' where it provides physical or MAC layer 
>processing between CLT and CNUs WITHOUT affecting IOP
>- CNU as a 'Unit' for subscriber access to an EPOC network
>
>'Terminal', 'Node', 'Unit' would distinguish the functions better.
>
>Also 'Node' does not contain potentially offending characters and can 
>refer to either a repeater, a bridge, or anything in between or even 
>above.
>
>I would also like to comment that in certain network scenario, this 
>remote device may not exist - where CLT is in the node location for 
>example.
>
>Best and have a good weekend
>Rick
>
>
>
>Sent from my iPonyExpress.
>
>On Jul 20, 2012, at 10:09 PM, "Marek Hajduczenia"
><marek.hajduczenia@xxxxxx> wrote:
>
>> Jorge, Hal,
>> 
>> I will record two suggestions and we will simply take a straw poll at
>> the meeting to see which option has majority preference. This will not
>> change the definition of the term, just the acronym for it.
>> 
>> Regards
>> 
>> Marek
>> 
>> -----Original Message-----
>> From: Salinger, Jorge [mailto:Jorge_Salinger@xxxxxxxxxxxxxxxxx]
>> Sent: 20 July 2012 20:49
>> To: STDS-802-3-EPOC@xxxxxxxxxxxxxxxxx
>> Subject: Re: [802.3_EPOC] Action items for September 2012 meeting
>> 
>> Hal,
>> 
>> I agree that Optical and Coax are not parallel terms. We discussed
>> this quite extensively when coming up with the name several months
>> back in a pretty long Email exchange. At the time we also discussed
>>other options.
>> Fiber-Coax are parallel terms, and so are Optical-RF. At the time when
>> we discussed it we just concluded that OCU sounded better (i.e., had a
>> better ring to it) than FCU or ORU.
>> 
>> Like Marek, I'm not opposed to changing it. Could you make some
>>suggestions?
>> 
>> Thanks!
>> Jorge
>> 
>> -----Original Message-----
>> From: Hal Roberts <Hal.Roberts@xxxxxxxxx>
>> Reply-To: Hal Roberts <Hal.Roberts@xxxxxxxxx>
>> Date: Friday, July 20, 2012 10:53 PM
>> To: EPoC Study Group <STDS-802-3-EPOC@xxxxxxxxxxxxxxxxx>
>> Subject: Re: [802.3_EPOC] Action items for September 2012 meeting
>> 
>>> Marek,
>>> 
>>> The term has been in common use only in the study phase. We are
>>> moving to the working group phase. I assumed the purpose of your
>>> email (which I
>>> applaud) was to tighten the acronyms and definitions.  Of course the
>>> definition is what matters most but terminology (acronyms) also
>>> matters as people don't always have access to the definition. We have
>>> this one opportunity to get it right before it becomes cast in
>>>concrete.
>>> 
>>> If my reasoning below is wrong then please explain why. If FCU is
>>> more accurate than OCU then why not use it?
>>> 
>>> Regards,
>>> 
>>> Hal
>>> 
>>> -----Original Message-----
>>> From: Marek Hajduczenia [mailto:marek.hajduczenia@xxxxxx]
>>> Sent: Friday, July 20, 2012 3:20 PM
>>> To: Hal Roberts; STDS-802-3-EPOC@xxxxxxxxxxxxxxxxx
>>> Subject: RE: [802.3_EPOC] Action items for September 2012 meeting
>>> 
>>> Hal,
>>> 
>>> I think you're reading too much into the name of the element. It is
>>> the definition that matters primarily to me. I am OK changing it into
>>> anything that is acceptable to the community, while OCU was proposed
>>> as the term used most commonly until now.
>>> 
>>> Regards
>>> 
>>> Marek
>>> 
>>> -----Original Message-----
>>> From: Hal Roberts [mailto:Hal.Roberts@xxxxxxxxx]
>>> Sent: 20 July 2012 10:58
>>> To: Marek Hajduczenia; STDS-802-3-EPOC@xxxxxxxxxxxxxxxxx
>>> Subject: RE: [802.3_EPOC] Action items for September 2012 meeting
>>> 
>>> Marek,
>>> 
>>> OCU - Optical Coax Unit mixes terminology.  Optical is analogous to
>>> RF (both electromagnetic waves), Fiber is analogous to Coax (both
>>> physical layer media).  OCU compares an electromagnetic wave with a
>>> physical media.
>>> 
>>> So the device should be more properly called an ORFU Optical RF Unit
>>> or RFOU RF Optical Unit  (both clunky terms) or alternatively FCU -
>>> Fiber Coax Unit or CFU Coax Fiber Unit.  CFU has the unfortunate 'FU'
>>>embedded.
>>> FCU is pronounceable, short (3 letters) and (as far as I know) does
>>> not have another pre-existing acronym in a related technology
>>> associated with it that could be confused with Fiber Coax Unit.
>>> 
>>> Hal
>>> 
>>> -----Original Message-----
>>> From: Marek Hajduczenia [mailto:marek.hajduczenia@xxxxxx]
>>> Sent: Thursday, July 19, 2012 2:49 PM
>>> To: STDS-802-3-EPOC@xxxxxxxxxxxxxxxxx
>>> Subject: [802.3_EPOC] Action items for September 2012 meeting
>>> 
>>> Dear colleagues,
>>> 
>>> Following the discussion in the morning, focused on the preparation
>>> for September 2012 meeting, I would like to start discussion on
>>> terminology for EPoC, as attached to this email. What I did so far,
>>> was to go through the contributions discussed so far, to collect the
>>> terms which were used most commonly in presentations and discussions,
>>> with the special focus on terms generating heated discussions
>>>(infamous PHY).
>>> The content is colour
>>> coded:
>>> 
>>> - a term in green indicates that we have already a solid definition
>>> in 802.3, which ought to be reused without changes
>>> - a term in yellow indicates a term which is specific to EPoC, and I
>>> felt sufficiently capable to propose the pass at the definition
>>> - a term in red indicates a wording which I collected from one of
>>> contributions, but it requires either further discussion,
>>> clarification or confirmation whether it is needed at all.
>>> 
>>> In the first pass through the list, please indicate whether any
>>> critical terms are missing or unnecessary. My intent at this time is
>>> to collect a complete list of terms, before we plunge into producing
>>> missing definitions.
>>> Please keep all discussion on the reflector so that we do not talk
>>> past each other or repeat proposals. I will try to keep the list
>>> updated as frequently as needed.
>>> 
>>> Given that definitions are critical for technical discussions on
>>> individual proposals, I'd suggest we complete the phase of collecting
>>> terms by the 28th of July, at which time I will move to generating
>>> individual missing definitions.
>>> 
>>> Regards
>>> 
>>> Marek
>>> 
>>> _____________________________________________________________________
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>> 
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