RE: [EFM] PON Optics Telephone Conference, December 5th
Roy,
Thanks for your clarification.
I think the combination of a TDM service along with a data service using
Ethernet service interfaces over one fiber architecture can be a good
transition from a TDM to packet network. Integrated systems that combine
established and revenue proven services with new services that could produce
revenue could help my company.
Thanks,
-Kent
> -----Original Message-----
> From: Roy Bynum [mailto:rabynum@xxxxxxxxxxxxxx]
> Sent: Wednesday, December 04, 2002 9:47 PM
> To: Mccammon, Kent G.; 'Thomas.Murphy@xxxxxxxxxxxx';
> stds-802-3-efm@ieee.org; Vipul_Bhatt@ieee.org; wdiab@cisco.com
> Subject: RE: [EFM] PON Optics Telephone Conference, December 5th
>
>
> Kent,
>
> As all of the functionality of 802.3ah is frame based, I
> would be cautious
> stating that any of it would be able to support T1 services,
> particularly
> "Private Line". Packet based voice services that emulate T1 would,
> however, qualify under the ANSI and ITU "services"
> definitions as "packet"
> or "virtual circuit over packet".
>
> The emulation as well as the OAM are frame based, not
> facilities based so
> 802.3ah is packet/frame service oriented, not subscription network
> oriented. The term "exclusive use" can not be applied to an
> services which
> are provided over any of the 802.3ah frames, except where the
> physical
> copper/fiber facility is dedicated to the customer. Unless
> there have been
> some radical changes to the wording of ITU x.7 in the last
> year, 802.3ah
> PON will not qualify to provide any kind of Leased Circuit
> Private Line
> services.
>
> Thank you,
> Roy Bynum
>
>
>
> At 05:45 PM 12/4/2002 -0800, Mccammon, Kent G. wrote:
>
> >Tom,
> >Since I have a conflict with the call tomorrow and I am
> interested in
> >this decision, here are some questions.
> >
> >1)Do any of the options for PON timing impact the delivery
> of services
> >such as toll quality voice, a T1, or multicast video? We had this
> >concern previously and the answer previously was claimed to
> be only an
> >efficiency hit for loose timing. Are the modeling assumptions to
> >compare efficiency valid for TDM services or is that not a
> >consideration in this debate to date? 2)The negotiation of timing
> >parameters rather than a tight specification have any impact
> on future
> >interoperability testing? If we ever decide to test
> interoperability
> >of EPON OLT and ONT, can a lab testing system be reasonably built to
> >test compliance to a specification for OLT/ONT timing for
> the various
> >options under debate? 3)Do operating temperature swings have
> an impact
> >on timing options. Is their reason to add extra margin or extra
> >negotiation time of timing parameters due to temperature variations?
> >What about cold start in cold temperatures, that was an
> issue for power
> >levels, does it also impact the electronics of the PMD?
> >
> >Comment: As an advocate of PON technologies I echo my
> earlier comments
> >about striving for common PON PMD to get the volume started
> in today's
> >economy. I am optimistic a compromise can be found in
> January. Thanks,
> >-Kent
> >
> >
> > > -----Original Message-----
> > > From: Thomas.Murphy@xxxxxxxxxxxx
> [mailto:Thomas.Murphy@xxxxxxxxxxxx]
> > > Sent: Wednesday, December 04, 2002 10:12 AM
> > > To: stds-802-3-efm@ieee.org; Vipul_Bhatt@ieee.org; wdiab@cisco.com
> > > Subject: [EFM] PON Optics Telephone Conference, December 5th
> > >
> > >
> > > Hello Again,
> > >
> > > Attacted two possible approaches to this discussion forming two
> > > decision trees. Glen and I worked on these I I did not
> have a chance
> > > to co-ordinate with him and refine to one slide. The
> first slide is
> > > mine and I would like to start here as it allows us to generate
> > > values without having to make decisions. When the values
> are agreed
> > > upon, we can work towards the decision and perhaps this
> is simpler
> > > with the values we have.
> > >
> > > If this does not work, we can try the seconf slide,
> Glen's approach,
> > > which is a more top-down attack.
> > >
> > > Talk to you tomorrow
> > >
> > > Tom
> > >
> > > <<PON Timing Decision Tree.ppt>>
> > >
> > > Hello All,
> > >
> > > Items to Be Covered
> > >
> > > 1) Determine the exact meaning of the terms "Fixed Value" and
> > > 'Upper Bound" in terms
> > > of their use for PMD timing parameters.
> > >
> > > 2) Try assign placeholder values for all of the options
> > >
> > > 3) Are these values fixed or bounded for the different options.
> > >
> > > 4) Other items
> > >
> > > Regards
> > >
> > > Tom
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
>