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Re: Re(2): [EFM] Network timing?


For some services, "Network Timing" is a requirement that has to be done 
right.  For other services it does not get in the way, if it is done right.

Thank you,
Roy Bynum

At 04:15 PM 9/27/01 -0700, Ed Belkeir wrote:

>ADSL/VDSL support network timing (NTR). Cable DOCSIS also supports
>network timing. I am sure there were good reasons for including network
>timing in these standards. So, I am not sure I understand why the objection
>for EFM copper/fiber. I would think for a service provider this should be a
>welcome feature since it will open the door for more services that can be
>deployed over EFM.
>What's problematic about network timing support on EFM copper ?
>----- Original Message -----
>From: Fletcher E Kittredge <fkittred@xxxxxxx>
>To: Beanland Matthew <Matthew.Beanland@xxxxxxxxxxxxxx>
>Cc: <>
>Sent: Thursday, September 27, 2001 9:13 AM
>Subject: Re: Re(2): [EFM] Network timing? [Etherloop?]
> >
> > On 27 Sep 2001 10:21:00 +1000  "Beanland Matthew" wrote:
> > > I was thinking principally fiber, although I am aware of VDSL systems
> > > perform E1/TI transport. By the reference to the PABX I'm thinking
> > > rather than residential.
> >
> > If you are talking fiber only; then I have no objection.  Adding this
> > to the copper standard is problematic.
> >
> > thanks,
> > fletcher
> >
> >