> On Oct 4, 2018, at 11:00 PM, Eric Smith via cctalk
> wrote:
>
> On Thu, Oct 4, 2018, 14:19 Eric Smith wrote:
>
>> except that in the Pelkey account the Alto network wasn't designed and
>> built until June, _after_ the name change.
>>
>
> I should have written that it the design and
> On Oct 4, 2018, at 11:00 PM, Eric Smith via cctalk
> wrote:
>
> On Thu, Oct 4, 2018, 14:19 Eric Smith wrote:
>
>> except that in the Pelkey account the Alto network wasn't designed and
>> built until June, _after_ the name change.
>>
>
> I should have written that it the design and
Listening to Bob Metcalfe talk right now (15:30 CST), and there may be a
question and answer session. Any questions?
- Mark
210-522-6025 office
210-379-4635cell
> On Oct 4, 2018, at 11:00 PM, Eric
On Thu, Oct 4, 2018, 14:19 Eric Smith wrote:
> except that in the Pelkey account the Alto network wasn't designed and
> built until June, _after_ the name change.
>
I should have written that it the design and construction _started_ in
June. The initial Ethernet wasn't completed until late
> From: Eric Smith
> I think the account given in the book may be a bit confused on this
> point. ... That sequence of events is contradicted by Pelkey ...
> describes the name change from Alto Aloha to Ether as happening in May
> 1973 in agreement with WWSUL, except that in
On 10/02/2018 09:20 PM, Bill Degnan via cctalk wrote:
I think Metcalfe was just giving credit for where he got the idea of
letting packets collide like alohanet was doing. He took their idea
and improved with collision detection and borrowed the name of his
improvements and subsequent network
On 10/04/2018 12:16 PM, Paul Koning via cctalk wrote:
I had to look up SQE. http://www.ethermanage.com/ethernet/sqe/sqe.html
It's 802-speak for the same signal.
I agree that it's the same concept and function. Though the link you
shared states that there is some timing difference between
The typo(s) in the quote are mine, not the book's.
On Thu, Oct 4, 2018 at 1:55 PM Bill Degnan wrote:
> I must have misrepresented this then, the book does claim Aloha Net to be
> just a working name in the very beginning. When it got to the beta testing
> phase it was already called Ethernet
>
After you referenced _Where Wizards Stay Up Late_,
>
>
> Thanks! From that, it sounds like the name "Alto Aloha" was only used
> during early planning, before CSMA/CD was invented, and that nothing that
> was actually built ever used that name, contrary to the account in _Where
> Wizards Stay Up Late_.
>
I must have misrepresented this then, the
> On Oct 4, 2018, at 1:43 PM, Warner Losh wrote:
>
>
>
> On Thu, Oct 4, 2018 at 11:39 AM Paul Koning via cctalk
> wrote:
>
>
> > On Oct 4, 2018, at 1:30 PM, Grant Taylor via cctalk
> > wrote:
> > ...
> > That makes me wonder about the "heartbeat" switch that I see on older AUI
> >
On Thu, Oct 4, 2018 at 11:39 AM Paul Koning via cctalk <
cctalk@classiccmp.org> wrote:
>
>
> > On Oct 4, 2018, at 1:30 PM, Grant Taylor via cctalk <
> cctalk@classiccmp.org> wrote:
> >
> > On 10/04/2018 11:26 AM, Paul Koning via cctalk wrote:
> >> That's sort of accurate. A quick look shows some
> On Oct 4, 2018, at 1:30 PM, Grant Taylor via cctalk
> wrote:
>
> On 10/04/2018 11:26 AM, Paul Koning via cctalk wrote:
>> That's sort of accurate. A quick look shows some key differences: V2 adds
>> the "collision presence test" -- verifying the collision detect signal is
>> working.
On 10/04/2018 11:26 AM, Paul Koning via cctalk wrote:
That's sort of accurate. A quick look shows some key differences: V2 adds
the "collision presence test" -- verifying the collision detect signal
is working. There is also the "jabber timer" -- a watchdog timeout that
stops excessively
> On Oct 4, 2018, at 1:07 PM, Eric Smith via cctalk
> wrote:
>
> On Tue, Oct 2, 2018 at 10:55 PM Grant Taylor via cctalk <
> cctalk@classiccmp.org> wrote:
>
>> On 10/02/2018 05:27 PM, Eric Smith via cctalk wrote:
>>> 3 Mbps Ethernet is _NOT_ Ethernet I. Both Ethernet I and II were 10 Mbps
On 10/04/2018 11:07 AM, Eric Smith via cctalk wrote:
The Ethernet I and II standards are available from Bitsavers:
http://bitsavers.trailing-edge.com/pdf/xerox/ethernet/
Cool.
From the preface of _The Ethernet_ Version 2.0: Version 2.0 of the
Ethernet specification reflects the
On Wed, Oct 3, 2018 at 11:21 PM Mark Kahrs via cctalk
wrote:
> I was there and it was always called "The Ethernet". When the 10 Mb
> standard came into being, it was then referred to as "The Experimental
> Ethernet". If you want to be *really* pedantic, you could refer to it as
> the "2.94 MHz
On Tue, Oct 2, 2018 at 10:55 PM Grant Taylor via cctalk <
cctalk@classiccmp.org> wrote:
> On 10/02/2018 05:27 PM, Eric Smith via cctalk wrote:
> > 3 Mbps Ethernet is _NOT_ Ethernet I. Both Ethernet I and II were 10 Mbps
> > DIX standards, with II having only minor differences from I.
>
> Okay.
On 10/04/2018 02:31 AM, Peter Corlett via cctalk wrote:
It was probably just known as "Ethernet". If there's only one kind,
why give it a longer name to distinguish it from future variants that
may never come to be? My bumph tells me it was called "Experimental
Ethernet", but I suspect that's
On Tue, Oct 02, 2018 at 11:34:54AM -0600, Grant Taylor via cctalk wrote:
> Does anybody know names / terms that correspond to the original 3 Mbps
> Ethernet?
> I.e. 10 Mbps Ethernet is also knows as Ethernet II (2) and D.I.X. (for
> Digital, Intel, and Xerox).
> Was the first 3 Mbps Ethernet
or 1983?)
By 1983, 3Com ThinNet (10-Base-2) released for IBM PCs. University of Iowa
graduate college installed one of their first LANs with an Altos sever (8086,
10 MHz).
greg
==
From: Grant Taylor
Subject: Ethernet names...
Does anybody know names / terms that correspond to the original 3 Mbps
From: Noel Chiappa
Sent: Wednesday, October 03, 2018 5:49 AM
>> From: Eric Smith
>> 3 Mbps was sometimes referred to as experimental Ethernet, but AFAIK
>> the only official name was "Ethernet".
>> The best way to refer to it is probably "3 Mbps Ethernet".
That's what almost we call it here at
I was there and it was always called "The Ethernet". When the 10 Mb
standard came into being, it was then referred to as "The Experimental
Ethernet". If you want to be *really* pedantic, you could refer to it as
the "2.94 MHz Ethernet" --- but that would be silly.
If you'd like to see how Aloha
> From: Eric Smith
> 3 Mbps was sometimes referred to as experimental Ethernet, but AFAIK
> the only official name was "Ethernet".
> The best way to refer to it is probably "3 Mbps Ethernet".
I was trying to remember what we called it at MIT (which had one), but my
memory was
On 10/02/2018 07:38 PM, Bill Degnan via cctalk wrote:
I later looked this up to confirm. See where wizards stay up lote by
Katie Halner and matthew lyon.
IMHO Where Wizards Stay Up Late is a *WONDERFUL* book. It's been too
long since I've read it. Perhaps I should (re)read it (again).
On 10/02/2018 05:27 PM, Eric Smith via cctalk wrote:
3 Mbps Ethernet is _NOT_ Ethernet I. Both Ethernet I and II were 10 Mbps
DIX standards, with II having only minor differences from I.
Okay. Thank you for the correction ~> clarification.
Now I'll keep an eye out (but not quite search for)
On Tue, Oct 2, 2018 at 10:55 PM Eric Smith via cctalk
wrote:
> On Tue, Oct 2, 2018 at 7:38 PM Bill Degnan wrote:
>
> > On Tue, Oct 2, 2018 at 7:46 PM Eric Smith via cctalk <
> > cctalk@classiccmp.org> wrote:
> > I've never heard of an Alto being connected to an Aloha Network, nor of
> any
> >
>
On Tue, Oct 2, 2018 at 7:38 PM Bill Degnan wrote:
> On Tue, Oct 2, 2018 at 7:46 PM Eric Smith via cctalk <
> cctalk@classiccmp.org> wrote:
> I've never heard of an Alto being connected to an Aloha Network, nor of any
>
>> network inside Xerox being called "Aloha".
>>
> Well there you go, now you
On Tue, Oct 2, 2018 at 7:46 PM Eric Smith via cctalk
wrote:
> On Tue, Oct 2, 2018, 11:47 Bill Degnan via cctalk
> wrote:
>
> > Ethernet was the name given to the Alto (XEROX) Aloha Network
>
>
> It wasn't an Aloha Network.
>
> There is a difference between Alohanet and the alto aloha network.
On 10/2/18 4:45 PM, Eric Smith via cctalk wrote:
> On Tue, Oct 2, 2018, 11:47 Bill Degnan via cctalk
> I've never heard of an Alto being connected to an Aloha Network, nor of any
> network inside Xerox being called "Aloha".
>
I just went back and reviewed every memo I can find that I have
On Tue, Oct 2, 2018, 11:47 Bill Degnan via cctalk
wrote:
> Ethernet was the name given to the Alto (XEROX) Aloha Network
It wasn't an Aloha Network.
created (?)
> by Bob Metcalff (sp?), which was based/inspired by an improved version of
> the ALOHANET used by the U of Hawaii.
In their CACM
On Tue, Oct 2, 2018, 11:35 Grant Taylor via cctalk
wrote:
> Does anybody know names / terms that correspond to the original 3 Mbps
> Ethernet?
>
> I.e. 10 Mbps Ethernet is also knows as Ethernet II (2) and D.I.X. (for
> Digital, Intel, and Xerox).
>
> Was the first 3 Mbps Ethernet simply called
To the best of my knowledge, at the time it was developed at PARC in
1973/74, it was referred to as "Ethernet" (or "The Ethernet") and later was
referred to as "Xerox Experimental Ethernet" likely to differentiate it
from the developing 10mbit standards...
- Josh
On Tue, Oct 2, 2018 at 10:47 AM
Not clear the 3 Mb one had a name of its own.
Note that Aloha is fundamentally different from Ethernet. Aloha is MA but not
CS nor CD, and its performance characteristics are very different from Ethernet.
paul
> On Oct 2, 2018, at 1:46 PM, Bill Degnan via cctalk
> wrote:
>
>
Ethernet was the name given to the Alto (XEROX) Aloha Network created (?)
by Bob Metcalff (sp?), which was based/inspired by an improved version of
the ALOHANET used by the U of Hawaii. I think Ethernet was a nickname,
eventually becoming the official name of what was originally the Alto Aloha
Does anybody know names / terms that correspond to the original 3 Mbps
Ethernet?
I.e. 10 Mbps Ethernet is also knows as Ethernet II (2) and D.I.X. (for
Digital, Intel, and Xerox).
Was the first 3 Mbps Ethernet simply called "Ethernet" with an implicit
"I" (1)? Was there a name to
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