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I2 multicasts


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  • From: Marshall Eubanks <>
  • To: "Lucy E. Lynch" <>
  • Cc: Hank Magnuski <>, Internet 2 mail list <>, MbonedD List <>
  • Subject: I2 multicasts
  • Date: Wed, 03 Oct 2001 11:26:42 -0400
  • Organization: Multicast Technologies

"Lucy E. Lynch" wrote:

> and for the bandwidith challenged - our own Amin Mottahed has
> managed to get a reflector of the VRVS sessions running as a
> multicast session - look for UO (Reflected) - I2 VIMM
>
> n=2162153005 2162153005 1002056675 224.2.127.254 9875 127 trusted none
> none noauth noenc notset notset
> k=
> v=0
> o=root 3211019249 3211019772 IN IP4 ahwaz.uoregon.edu
> s=UO (Reflected) - I2 VIMM
> i=University of Oregon multicast reflected unicast stream from VRVS
> u=http://www.vrvs.org
> e=amin mottahed
> <>
> p=+1.541.346.1773
> t=3211007400 3211612200
> a=tool:sdr v3.0
> a=type:broadcast
> m=audio 21788 RTP/AVP 0
> c=IN IP4 224.2.143.120/127
> a=ptime:40
> m=video 49244 RTP/AVP 31
> c=IN IP4 224.2.252.175/127
>
> vat -f pcm2 -r -I 3 -t 127 224.2.143.120/21788 &
> vic -t 127 -I 3 224.2.252.175/49244/h261/127 &
>
> Lucy E. Lynch Academic User Services
> Computing Center University of Oregon
>
> (541) 346-1774
> Cell: (541) 912-7998
>
>
> On Tue, 2 Oct 2001, Marshall Eubanks wrote:
>
> > Hank Magnuski wrote:
> >
> > > On Tue, 2 Oct 2001, Marshall Eubanks wrote:
> > >
> > > > Are any of the I2 multicasts scaled to fit in a T1 ?
> > > > The ones I can get (I2 VMM Plenary, 3 NCASTs and the Columbia remote)
> > > > all seem to be ~ 1.5 mbps, which is a little rough on a T1.
> > > >
> > > > --
> > > > Regards
> > > > Marshall Eubanks
> > >
> > > I've reduced the MPEG-1 encoding rate to 1.0 Mbps on Bob Riddles NCast
> > > box. The video quality is somewhat poorer, but the audio and video are
> > > now coming in much better at our T1 site here.
> > >
> > > Hank
> > >
> > > Video 233.45.17.42/10000
> > > Audio 233.45.17.42/11000
> >
> > Thanks - this works much better here !
> >
> >
> > --
> > Regards
> > Marshall Eubanks
> >
> >
> > T.M. Eubanks
> > Multicast Technologies, Inc
> > 10301 Democracy Lane, Suite 410
> > Fairfax, Virginia 22030
> > Phone : 703-293-9624 Fax : 703-293-9609
> > e-mail :
> >
> > http://www.on-the-i.com
> >
> > Test your network for multicast : http://www.multicasttech.com/mt/
> > Check the status of multicast in real time :
> > http://www.multicasttech.com/status/index.html
> >
> >

Hello;

Is there a list of what I2 sessions are _multicast_ ? I am trying to get
the backbone session at 11:30 EDT. There are 7 SDR SAP's in MacTV, but
only Columbia gives me something, and I'm not sure it's I2 related.

Or am I just too early ?
--
Regards
Marshall Eubanks
T.M. Eubanks
Multicast Technologies, Inc
10301 Democracy Lane, Suite 410
Fairfax, Virginia 22030
Phone : 703-293-9624 Fax : 703-293-9609
e-mail :

http://www.on-the-i.com

Test your network for multicast : http://www.multicasttech.com/mt/
Check the status of multicast in real time :
http://www.multicasttech.com/status/index.html





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