[ih] booting linux on a 4004

[Michael Greenwald]

It wasn't Lixia (I believe it predated her arrival at MIT).
It wasn't John Nagle, who wasn't (to my knowledge) at MIT at the time.
As I said it had little impact, and is primarily of historical interest. 
But we can ask Dave Clark if anyone cares.

On 10/1/24 3:22 PM, Brian E Carpenter wrote:
> On 02-Oct-24 10:19, Michael Greenwald via Internet-history wrote:
>>
>> On 10/1/24 1:11 PM, Greg Skinner via Internet-history wrote:
>>> Forwarded for Barbara
>>>
>>> ====
>>>
>>> From: Barbara Denny <b_a_denny at yahoo.com>
>>> Sent: Tuesday, October 1, 2024 at 10:26:16 AM PDT
>>> I think congestion issues were discussed because I remember an ICMP 
>>> message type called source quench (now deprecated). It was used for 
>>> notifying a host to reduce the traffic load to a destination.  I 
>>> don't remember hearing about any actual congestion experiments using 
>>> this message type.
>> Of only academic interest: I believe that, circa 1980 +/- 1-2 years, an
>> advisee of either Dave Clark or Jerry Saltzer, wrote an undergraduate
>> thesis about the use of Source Quench for congestion control. I believe
>> it included some experiments (maybe all artificial, or only through
>> simulation).
>> I don't think it had much impact on the rest of the world.
>
> Source quench is discussed in detail in John Nagle's RFC 896 (dated 
> 1984).
> A trail of breadcrumbs tells me that he has an MSCS from Stanford, so
> I guess he probably wasn't an MIT undergrad.
>
> Source quench was effectively deprecated by RFC 1812 (dated 1995). People
> had played around with ideas (e.g. RFC 1016) but it seems that basically
> it was no use.
>
> A bit more Google found this, however:
>
> "4.3. Internet Congestion Control
> Lixia Zhang began a study of network resource allocation techniques 
> suitable for
> the DARPA Internet. The Internet currently has a simple technique for 
> resource
> allocation, called "Source Quench."
> Simple simulations have shown that this technique is not effective, 
> and this work
> has produced an alternative which seems considerably more workable. 
> Simulation
> of this new technique is now being performed."
>
> [MIT LCS Progress Report to DARPA, July 1983 - June 1984, AD-A158299,
> https://apps.dtic.mil/sti/pdfs/ADA158299.pdf ]
>
> Lixia was then a grad student under Dave Clark. Of course she's at 
> UCLA now. If she isn't on this list, she should be!
>
>    Brian Carpenter
>
>