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It looks to me like if all of you are trying to reinvent the wheel: the congestion control by the network nodes (X.25, Frame Relay, ATM) has been demonstrated, until now, that is a problem with no solution. Nevertheless the control by DTE (TCP) is much more effective.
I have presented to you a solution which solves the principal problems of congestion management using LLC 802.2, which IS THE IEEE 802 MANDATORY STANDARD to do the functions of data link control over 802.3.
Booth Bradley raise a very interesting question:
>> Just a quick question, was there any discussion around an 802.1 "DTE
>> Client" effort? Although a lot of the switches might do this
today,
>> there is no "standard" way to do this in end stations, so I'm curious
if
>> they plan to address this.
You know that link layer is the best to perform the functions of flow control, congestion control, error correction and much more, all of them end to end and in the terminal, like TCP in the TCP/IP environments. But link layer is always better than trasport layer, because of the tigther control of the link, and the minimum overhead of HDLC.
We can consider the functions of the LLC2 at the level of Ethernet domain (network) like the equivalent of TCP in IP domain (Internet), with evident advantages for the control in the link level. All the experience of Internet would be, for that reason, applicable to the solution that I propose.
I was one of the participants in the balloting for reaffirmation of Standard 802.2 wich the IEEE-SA Standards Board approved on December 10, 2003. All the functions required to do the Congestion Management will be done with a minor upgrades of the LLC.
I live in Spain and it is impossible for my to attend the meetings. However, I believe that the solution that I propose is optimal.
Thanks,
Jose
-----------------------------------------
Jose Morales Barroso, Ph.D.
Director
L&M Data Communications
www.lmdata.es
Ctra. Pozuelo a Humera, 63 - Ch.39
28224 Pozuelo de Alarcon
Madrid
Spain
tel: +34 91 352 41 31
fax: +34 91 352 33 78
email: jmb@ieee.org
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Benjamin Brown wrote:
All,I would like to hold a conference call next week.
Subject: Tutorial Planning
Date: Wednesday, October 20, 2004
Start Time: 02:00 PM Eastern Daylight Time
End Time: 03:25 PM Eastern Daylight Time
Dial-in Number: 1-702-851-3330 (Las Vegas, Nevada)
Participant Access Code: 802327 (802.3ar)This is not a toll-free number so you will get charged your
regular long distance rate.Please let me know if you plan to attend or if you really want
to attend but this time just doesn't work for you and what times
would be better (privately - there's no need to broadcast this
to the reflector). I know I won't be able to accommodate everyone
but I'll certainly try.In general, the tutorial will serve as a way to educate 802.3 and
everyone else who is interested in what we've been doing for the
last 8 months since the study group was created. We'll need to
show them our objectives, our response to the 5 Criteria and our
PAR. We'll want to bring them up to speed with what we've done
with 802.1 and what 802.1 thinks about it. We'll want to show
them that we have some simulation results to back up the things
we're promoting.I'll try to solidify some thoughts in this area between now and
the call. If others have ideas, please feel free to share them with
all of us on the reflector.Thanks,
Ben--
-----------------------------------------
Benjamin Brown
178 Bear Hill Road
Chichester, NH 03258
603-491-0296 - Cell
603-798-4115 - Office
benjamin-dot-brown-at-ieee-dot-org
(Will this cut down on my spam???)
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