[AG-TECH] Trying to figure these ports out...

Victor M. Babson, Jr. vbabson at secsg.uga.edu
Wed Oct 8 12:13:15 CDT 2003


I am trying to connect up to my venue which only has one camera feed.

I've seen it max out at 450 bps --> = 56Kbs

So that's why I feel my 1Mb connection is sufficient.  And I was thinking it
was a port issue.

So far, all I've got is one port that has to be open for audio to come
through, but the only thing that currently comes through is text when it is
type in the venue.

Also, is it planned in a future relase to timestamp notices in the venue?
Such as Victor Babson entered the Venue at 11:20 am.

Thanks again for all who have replied.

--Vic

----- Original Message ----- 
From: "Gurcharan S. Khanna" <Gurcharan.S.Khanna at Dartmouth.EDU>
To: <mimiller at ncsa.uiuc.edu>; <ag-tech at mcs.anl.gov>
Sent: Wednesday, October 08, 2003 11:34 AM
Subject: Re: [AG-TECH] Trying to figure these ports out...


> hi,
>
> i notice that most participants in AG events are sending video at only
3-400Kbps
> per stream, so if you're only sending/receiving one stream then 1Mbps
should be
> sufficient. you might try receiving a video stream of known bitrate, and
keep it
> low, just to eliminate the bandwidth issue.
>
> -gurcharan
> ===========================
> Gurcharan S. Khanna, Associate Director
> Research Computing, Dartmouth College
> gkhanna at dartmouth.edu
> office: 603-646-1644
> http://research.dartmouth.edu/
> http://www.dartmouth.edu/~gkhanna
>
> --- Michael Miller wrote:
> Victor,
>
> I don't believe that 1Mb/s is fast enough, you may get vic to give you
some
> thumbnails, but I doubt you'd get satisfactory performance opening one of
> the video windows.  I've seen suggested minimums of 15 Mb/s
>
> Anyone else have a comment?
>
> Michael Miller
> NCSA
>
> At 06:13 PM 10/6/2003, you wrote:
> >1 Mb/s (small B)
> >
> >
> >I think that should be sufficient...
> >
> >--Vic
> >
> >
> > > Victor,
> > >
> > > How fast a connection do you have from home?
> > >
> > > Michael Miller
> > > NCSA
> > >
> > > At 01:20 PM 10/6/2003, you wrote:
> > >>Okay,
> > >>
> > >>So if I am trying to connect up to a venue from home.  What ports MUST
> > >> be  open?
> > >>
> > >>I can connect to the venue, but audio/video never come through.  I
know
> > >>  these services are working okay on the campus machine, as I can
check
> > >> them  from other campus machines.
> > >>
> > >>I have a unicast bridge up, but even after trying to use it at home I
> > >> still have no audio/video.  So since things work from campus, I am
> > >> concluding that this must be a communication (port) issue.
> > >>
> > >>I've tried connecting to cave-video and using unicast.  When I do so,
I
> > >>  can receive video/audio on campus, but not from home.
> > >>
> > >>
> > >>Any input you have is greatly appreciated.
> > >>
> > >>TIA!!
> > >>
> > >>--Vic
> > >>
> > >>
> > >>--------------------------------------------
> > >>Victor M. Babson, Jr.
> > >>Management Info. Specialist
> > >>B206E Life Sciences Bldg.
> > >>Athens, GA  30602
> > >>Office (706-542-6565)
> > >>Fax  (706-542-3528)
> > >>--------------------------------------------
> > >
> > > Thanx,
> > >
> > > Michael Miller
> > > System Engineer
> > > Visualization Technology Support
> > > Computing and Data Management
> > > National Center for Supercomputing Applications
> > > University of Illinois - UC
> > > 217-649-0747
> > >
> > > "If you're clear in your vision and trust the people in your team with
> > > clear objectives, they will invariably do their best to achieve
> > > everything  desired, and usually deliver everything you could have
hoped
> > > for and even  more." -Paul Debevec
>
> Thanx,
>
> Michael Miller
> System Engineer
> Visualization Technology Support
> Computing and Data Management
> National Center for Supercomputing Applications
> University of Illinois - UC
> 217-649-0747
>
> "If you're clear in your vision and trust the people in your team with
> clear objectives, they will invariably do their best to achieve everything
> desired, and usually deliver everything you could have hoped for and even
> more." -Paul Debevec
>
> --- end of quote ---




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