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RE: flat vs non-flat charging

  • From: Bill St. Arnaud
  • Date: Wed Jun 03 10:36:58 1998

Steven:

New municipal and campus WDM gear from Cambrian, Ciena and Nortel  makes it
a lot easier and cheaper to deliver data services over separate WDM channels
than to MUX them into one SONET or ATM service.  More importantly becuase
the service is data transparent, each customer can manage their own WDM
channel independent of the other channels. Try doing that with SONET or
ATM!!

Check out www.cambrian.com for more details.

However, I agree with you that if you have spare fiber it is cheaper just to
light up the fiber without WDM or SONET.  Packet Engines claims they can
drive 22km of dark fiber with no additional equipment or repeaters

Bill

-------------------------------------------
Bill St Arnaud
Director Network Projects
CANARIE
bill.st.arnaud@canarie.ca
http://www.canarie.ca/bstarn

 

 



> -----Original Message-----
> From: steven hessing [mailto:stevenh@inet.unisource.nl]
> Sent: Friday, May 29, 1998 5:08 PM
> To: Bill St. Arnaud
> Cc: Jerry Scharf; nanog@merit.edu
> Subject: Re: flat vs non-flat charging
>
>
> Bill,
>
> WDM may lower the price per Mbit/s considerably, however many of these
> Mbit/s will have to be sold to be profitable as a service. Connecting
> two routers using dedicated WDM gear and 5km of fiber to send over
> 155Mbit/s traffic is more expensive then connecting the two routers
> directly using 5km of fiber, even though the first solution would
> give you much more available capacity.
>
> If multiple services need to run over the same fiber then existing
> ATM or SDH networks are well capable of multiplexing these services
> over one fiber at often lower costs then installing new WDM gear.
>
> There where there is a fiber shortage because there is no further
> room for service multiplexing or there is a shortage of capacity, WDM
> will be a very good solution. It is much cheaper then installing new
> fiber.
>
> WDM is therefor very real for connecting TEX's together and for
> connecting LEX's to TEX's. I expect that WDM needs OADMs or other
> up and coming technology for SDH or WDM to become cost-effective for
> the MAN/local loop.
>
> To return to the original topic, for the forseeable future (3-5 years?)
> bandwidth will remain scarce and therefor expensive. The prices per
> MBit/s will drop shortply but this will be compensated in a large
> increase in demand. An distance-based pricing scheme could therefor
> be an appropriate solution. Personally, I don't think it will happen.
>
> -- Steven
>
> PS: if anyone can prove me wrong with some numbers, please show me :)
> I've been working on cost calculations for bandwidth for the last
> couple of weeks.
>
> In your mail from 29-5-1998 you write:
> > Jerry:
> >
> > You are absolutely right.  I have pulled together some numbers on public
> > pricing for long haul WDM (including right of way) showing that
> if you ou=
> > t
> > IP over WDM the cost of bandwidth drops by a factor of 100 to 1000.  On
> > local loops it is more dramatic - with new WDM technology from companies
> > like Cambrian and Ciena gigabit ethernet or OC-48 SONET on a
> 5km local lo=
> > op
> > should cost about $2500 per YEAR.
> >
> > A number of our regional networks have already pulled their own
> fiber and
> > our realizing these costs in the real  world.
> >
> > Fibre - $4 to $6 per meter
> >       20 year economic life and 10% maintenance per year
> >       48 strands NZDSF
> > Right of way $0 -$10 per meter per year (up to $200 per meter
> on long hau=
> > l)
> > but
> >     common solution is to offer right way owner free use of a couple of
> > strands instead of paying cash
> > Installation $25 per meter underground in cities
> >       $6 per meter on poles (maintenance costs 20% year)
> > Twenty year amortized cost with 10% cost of money plus maintenance plus
> > right of way costs at $10/year per meter
> >   $17 per year per meter for 48 strands
> >   $1.50 per year per meter per strand
> >    $.50 per year per meter per wavelength
> > A 5 km OC-48 local loop should cost about $2500/year
> >
> >
> > Bill
> >
> > -------------------------------------------
> > Bill St Arnaud
> > Director Network Projects
> > CANARIE
> > bill.st.arnaud@canarie.ca
> > http://www.canarie.ca/bstarn
> >
> > =A0
> >
> > =A0
> >
> >
> >
> > > -----Original Message-----
> > > From: owner-nanog@merit.edu [mailto:owner-nanog@merit.edu]On Behalf Of
> > > Jerry Scharf
> > > Sent: Friday, May 29, 1998 12:07 PM
> > > To: nanog@merit.edu
> > > Subject: flat vs non-flat charging
> > >
> > >
> > > I think the idea of distance charging is going away in many
> > > cases. With WDM,
> > > the cost of the WDM and SONET eqiupment on the ends of a fully
> > > populated 32
> > > channel per fiber, 144 strand pull vastly outweight end-to-end
> > > fiber costs of
> > > anything pulled through the ground. When you add routers and the
> > > like on top
> > > of that, the distance issue really goes away and it becomes
> on of netwo=
> > rk
> > > topology hops. Can anyone with figures for new
> intercontinental pulls s=
> > ay
> > > whether this is true there as well (project oxygen marketing
> claims thi=
> > s,
> > > but...)?
> > >
> > > Using archaic telephone pricing models to argue cost of
> providing bulk =
> > IP
> > > services is just not right.
> > >
> > > jerry
> > >
> > >
> >
>





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