RE: Why I think a variable date rate PHY is important for LAN or WAN
I understand that, but I still don't think it offsets the cost of supporting
multiple speeds.
Walt
> -----Original Message-----
> From: Bill St. Arnaud [mailto:Bill.St.Arnaud@xxxxxxxxxx]
> Sent: Friday, September 17, 1999 6:34 AM
> To: Walter Thirion
> Subject: RE: Why I think a variable date rate PHY is important for LAN
> or WAN
>
>
> But trunking means additional laser costs. Particularly in
> the long haul
> lasers are very expensive
>
> Bill St. Arnaud
> Senior Director Network Projects
> CANARIE
> bill.st.arnaud@xxxxxxxxxx
> +1 613 785-0426
>
> > -----Original Message-----
> > From: owner-stds-802-3-hssg@xxxxxxxxxxxxxxxxxx
> > [mailto:owner-stds-802-3-hssg@xxxxxxxxxxxxxxxxxx]On Behalf Of Walter
> > Thirion
> > Sent: September 16, 1999 11:06 AM
> > To: 'HSSG'
> > Subject: RE: Why I think a variable date rate PHY is
> important for LAN
> > or WAN
> >
> >
> >
> > Bill,
> >
> > I absolutely agree that we have to support the installed base.
> > However, with
> > trunking/link aggregation being standardized, you can
> easily trunk 2 to 4
> > 1Gig segments to achieve the performance between 1 Gig and 10 Gig.
> > Considering the develoment cost, equipment deployment
> costs, etc., it just
> > doesn't make sense to me to target less than 10 Gb/s.
> >
> > Walt
> >
> > > -----Original Message-----
> > > From: Bill St. Arnaud [mailto:Bill.St.Arnaud@xxxxxxxxxx]
> > > Sent: Thursday, September 16, 1999 9:54 AM
> > > To: Bruce_Tolley@xxxxxxxx
> > > Cc: 'HSSG'
> > > Subject: Why I think a variable date rate PHY is
> important for LAN or
> > > WAN
> > >
> > >
> > >
> > > I would like to echo Bruce Tolley's comment that the
> > > traditional LAN market
> > > is important as the WAN market.
> > >
> > > This is why I think we need a variable data rate PHY ( yes I
> > > know this may
> > > be real hard with PLL). But maybe we can user
> > > interchangable PHY devices
> > > like GBIC connectors.
> > >
> > > The problem is that just like in the WAN, there will be a
> > > huge installed
> > > base of existing fiber. A lot of this fiber may not support
> > > 10GbE at the
> > > targeted distances, but it may work very well at speeds of
> > > 2GbE, 4GbE,
> > > 8GbE, etc
> > >
> > > As lasers are the single biggest cost, partularly in the WAN,
> > > lower data
> > > rates will allow us to operate our networks at greater
> distances. As
> > > bandwidth demand grows users can have a smooth upgrade
> path by either
> > > increasing laser power, or installing boosters (1R) and or
> > > repeaters (3R) or
> > > ultimately installing new fiber
> > >
> > > Bill
> > >
> > > Bill St. Arnaud
> > > Senior Director Network Projects
> > > CANARIE
> > > bill.st.arnaud@xxxxxxxxxx
> > > +1 613 785-0426
> > >
> > > Bill St. Arnaud
> > > Senior Director Network Projects
> > > CANARIE
> > > bill.st.arnaud@xxxxxxxxxx
> > > +1 613 785-0426
> > >
> > > > -----Original Message-----
> > > > From: owner-stds-802-3-hssg@xxxxxxxxxxxxxxxxxx
> > > > [mailto:owner-stds-802-3-hssg@xxxxxxxxxxxxxxxxxx]On Behalf Of
> > > > Bruce_Tolley@xxxxxxxx
> > > > Sent: September 16, 1999 8:18 AM
> > > > To: Young, Leonard G
> > > > Cc: 'HSSG'
> > > > Subject: RE: York plans
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > Leonard:
> > > >
> > > > We cannot roll out 10 GbE in 2 or 3 years to our customers and
> > > > tell them SORRY
> > > > there is no support for your installed fiber. We CANNOT tell
> > > > them just pull
> > > > enhanced multimode fiber.
> > > >
> > > > As it stands 100 meters is not sufficient as a goal for the
> > > > installed base. 10
> > > > GbE will be a backbone technology for campus LANs and must
> > > > support the installed
> > > > cabling. If we cannot run 10 GbE on installed MM fiber at
> > > > backbone distances,
> > > > we should start telling customers now to pull SM fiber.
> > > >
> > > > What we really need is a goal that gives us a real backbone
> > > > distance of 200
> > > > meters on the installed MM fiber.
> > > >
> > > > There has been a plethora of email about support for the WAN on
> > > > this reflector.
> > > > How about some email that communicates support for our
> > > > traditional customer
> > > > base??
> > > >
> > > > Bruce Tolley
> > > > Manager, Business Development
> > > > 3Com Corporation
> > > >
> > > >
> > >
>