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


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