Please change the phone number for me on the conference call to 650
604-6922. 2 folks (Marjory Johnson and Huge LaMaster) want to participate.
(That number is a speaker phone we can all use)
Thank You
Shelly
>Hi Bob,
>I think it would be useful if you, I and the program manager at NASA
>could talk via phone.
>
>Could we call you 12:30 Chicago time at home?
>
>These are the questions Shelly wants answered. From my discussions
>with Joe yesterday, it seems like you would be the best one to
>discuss these with. (not the PowerWall part).
>
>Anne
>
>> From mdeixler@mail.arc.nasa.gov Thu May 21 11:26:28 1998
>> Date: Thu, 21 May 1998 10:26:15 -0700 (PDT)
>> Mime-Version: 1.0
>> Content-Type> : > text/plain> ; > charset="us-ascii">
>> To: Anne Hammond <hammond@solarz.Colorado.EDU>
>> From: Shelly Deixler <mdeixler@mail.arc.nasa.gov>
>> Subject: Networking Experiment
>> Content-Length: 4125
>>
>> Ann:
>>
>> I tried to send this to you last week but last night I discovered it never
>> went out. I think it was cockpit trouble but I'd have sworn I sent it.
>>
>> We are trying to create the network experiment. To do that we need some
>> fairly detailed information on what is going to be sent over the network
>> and what format, tools, protocals and techniques are going to be used.
>> Excerpting from your e-mail to me last month (4/20):
>>
>>
>> >Application bandwidth requirements:
>> >-----------------------------------
>>
>> >-) Remote steering of simulations running on high-performance
>> > computers, in particular on the NASA/ESS testbeds
>> ** >-) Remote interactive analysis and visualization of simulation
>> > data, including Virtual Reality applications
>> >-) Data movement and high-performance I/O
>> >-) Remote collaborations and video conferencing
>> ** >-) Remote PowerWall application
>> >
>> **Are the "Remote interactive analysis and visualization..." and the
>> "Remote PowerWall" applications the same? If not what are the
>> differences? What kind of traffic will transit the network in each case?
>> What fromat will the data take in each case. What end location equipment
>> and software will be needed to view (or transmit) the data?
>> (Note: If viewing equipmet/software combo is different from transmitting,
>> please indentify for each). Will these applicaitons interact with each
>> other in some way or are they independent? What protocals will they be
>> using? (The Web site on PowerWall indicates it needs two rather powerfull
>> computer to run it with a HiPPPC network in between. Will there be a site
>> with a PowerWall where the computers that run it are located remotly?
>>
>> >
>> >The most demanding applications are networked VR and the remote
>> >PowerWall.
>> >
>> >Without hardware supported image compression and decompression, the
>> >Remote PowerWall application demands at deast 32 MByte/sec (256 Mbs)
>> >sustained network bandwidth. This would require OC12 connectivity, the
>> >infrastructure for which is not currently in place.
>> >
>> >Since all sites are currently connected at OC3 capability, we
>> >propose to experiment with PowerWall hardware image compression and
>> >decompression to the sites included in this proposal initially,
>> >if OC3 is a possibility. We have already demonstrated sustained
>> >50-90 Mbs use of the vBNS for networked applications such as this.
>>
>> On the Remote PowerWall (I may be repeating myself here) what will the
>> formats be before and after the compression? Will the encoder at the host
>> site be a saperate piece of equipment or is it a card in the computers
>> running the PowerWall? Does the receiving have to have a hardware decoder
>> or could it view a degraded image using software decoding or no decoding?
>> What will do the encoding and decoding? (Product name). If all of us
>> agreed to trial reliable multicast as opposed to unreliable, (new issue I
>> know) would it be possable to insert the required headers and trailers into
>> the bit stream during the compression / decompression process or would they
>> have to simply be added around the outside of every packet being
>> transmitted? (I.e. is the compression / expansion process a sealed "black
>> box" affair or is it an open archectecture that we could "play" with
>> [hopefully without breaking]).
>>
>>
>> The writer of this (I couldn't find the reference to who originated this)
>> mentions having done this on vBNS. Who in vBNS would know what was done,
>> when it was done, how it was done, and what type of data was transmitted?
>>
>> If I were to contact him/her how would I refer to the project so that they
>> would know what I was talking about.
>>
>>
>> These questions should have been sent to you last week. I'm sorry for the
>> delay. If you could start on this right away I would greatly appreciate it?
>>
>>
>> Thank You for all your help
>>
>>
>> Shelly
>>
>> ************************************************************
>> Shelly Deixler
>> Senior Engineer - NREN Applications
>> NASA Ames Research Center
>> Mail Stop 233-10
>> Moffett Field, CA 94035-1000
>> USA
>>
>> mailto:mdeixler@mail.arc.nasa.gov
>> http://www.nren.nasa.gov
>>
>> 650-604-1329 (voice)
>> 650-604-3080 (fax)
>> ************************************************************
>>
>>
>>
>
>> From rhudson@midway.uchicago.edu Fri May 29 07:43:10 1998
>> X-Sender: rhudson@acs-popmail.uchicago.edu
>> X-Mailer: QUALCOMM Windows Eudora Pro Version 3.0.3 (32)
>> Date: Fri, 29 May 1998 08:40:21 -0500
>> To: "Anne M. Hammond" <hammond@solarz.colorado.edu>, mambretti@uchicago.edu
>> From: Randy Hudson <rhudson@midway.uchicago.edu>
>> Subject: Re: Telephone conference call / NREN project
>> Cc: a-malagoli@uchicago.edu
>> Mime-Version: 1.0
>> Content-Type> : > text/plain> ; > charset="us-ascii">
>> Content-Length: 751
>>
>> At 04:28 PM 5/28/98 -0600, Anne M. Hammond wrote:
>> >Hi,
>> >
>> >I will set up a conference call @ 2 pm Chicago time tomorrow to talk
>> >about
>> >NREN applications and a potential schedule.
>> >
>> >This has been changed from the schedule 10 am Chicago time emailed in
>> >an earlier message.
>> >
>> >Joe and I have this scheduled. It could be moved to somewhat later if 2
>> >pm
>> >will not work, so please let me know. Not later than 4 pm Chicago time.
>>
>> Anne,
>>
>> I wasn't planning to be at Argonne Friday. If you can include me from home
>> (630-515-0164), please let me know.
>>
>>
>>
>> Randy.
>>
>> Randy Hudson rhudson@harper.uchicago.edu
>> Web coordinates http://www.mcs.anl.gov/home/hudson/index.html
>> Argonne National Lab vox[mail]...630.252.8690 fax...630.252.5986
>>
>>
************************************************************
Shelly Deixler
Senior Engineer - NREN Applications
NASA Ames Research Center
Mail Stop 233-10
Moffett Field, CA 94035-1000
USA
mailto:mdeixler@mail.arc.nasa.gov
http://www.nren.nasa.gov
650-604-1329 (voice)
650-604-3080 (fax)
************************************************************