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RE: what's next ?


I "HIGHLY DISCOURAGE" the concept of splitting the PAR. To do so would
significantly complicate the work of the committee and add no benefit. There
is no reason to believe that a separate task force can come to any
conclusion that would be supported by the 802.3 WG any quicker than 802.3ae.

IMHO, the only reason to split the PAR would be that 802.3ae is interested
in moving forward at a rate that cannot be matched by the MMF PMDs.

There is NO REASON to believe that this is the case today.


>-----Original Message-----
>From: Kardontchik.Jaime [mailto:kardontchik.jaime@xxxxxxxxxxxxxxx]
>Sent: Friday, July 14, 2000 9:02 AM
>To: stds-802-3-hssg@xxxxxxxx
>Subject: what's next ?
>Hello 10Giga'ers,
>The results of the vote held in La Jolla led to the ridiculous result
>that an
>802.3 Task Force has passed the MAN- and WAN-oriented proposals
>and voted down all the LAN-oriented proposals. It is clear 
>that the Task
>Force failed to reach its objectives. However, this failure could be
>also a
>great opportunity for everyone.
>Perhaps the right thing to do is to go for an amicable divorce and
>two new PARs and go for two separate Task Forces.
>One TF will have  MAN- and WAN-oriented objectives  using single-mode
>fiber and 1,300  and 1,550 nm lasers. These are the two proposals that
>approved in La Jolla. Being freed from the "burden" of the multiplicity
>LAN-oriented proposals (as some of its proponents declared) this TF
>proceed unimpeded to reach all its desired objectives.
>The other TF will be LAN-oriented and will also proceed very rapidly to
>standardize the following 10.00000 Gbps proposals:
>    1) 8b/10b coding using 4-WDM and 850 nm lasers on multimode fiber,
>with 3.125 Gbaud symbol rate in the fiber;
>    2) 8b/10b coding using 4-WDM and 1,300 nm lasers on multimode and
>single-mode fiber, with 3.125 Gbaud symbol rate in the fiber; and
>    3) 8b/10b coding serially  with 12.5 Gbaud symbol rate in 
>the fiber.
>The 4-months delay due to the need to get an approved PAR will not
>the final target schedule  of the original 802.3ae. On the 
>contrary, one
>expect - at least for the LAN-oriented Task Force - to have a first
>draft and the first complete multivendor working prototypes by the end
>this year (at least for the 4-WDM versions). This will make 
>the approval
>the LAN-PAR unstopable.  And with working prototypes so early one would
>expect the final LAN-oriented Standard to be very robust and 
>adopted by the market.
>Moving the serial  LAN to 12.5 Gbaud is a risky proposition from my
>part. However,  if the delay/price penalty is reasonable it would be
>since then all the 10 Gbps LAN PHYs will have the same PCS, that will
>be shared by Fiber Channel and the majority of the high-speed Copper
>backplane solutions.
>These three LAN-oriented  proposals will provide the most cost 
>solutions for all the possible LAN environments, including both the
>links and the longer campus links
>Jaime E. Kardontchik
>Micro Linear
>San Jose, CA 95131