All things related to multicast

["Gurcharan S. Khanna" <>]

hi,

regarding multicast sources and its uses, i have been building up the RIT 
Global Collaboration
Grid based on primary multicast sources. i have about a dozen mulitcast 
streams, some at full
HD and 20 Mbps going 24/7 within the 233.17.33.xxx range. these are being 
received
on-campus at a dozen sites and also at our foreign campuses via multicast 
bridges at the moment.
we use the same system for events, such as lectures, demos, classes, etc. as 
required.

fyi,

-gurcharan

http://rc.rit.edu/collab.html




On 12/17/12 2:28 PM, Mark Boolootian wrote:
> > I'm not about to suggest that we drop support for wide-area IPv4 multicast. 
> > There are
> > legitimate uses still being made of it, even though there aren't any in 
> > evidence on our
> > network this Monday morning. I'm really beginning to wonder whether IPv6 
> > multicast has
> > a future, though. It seems to me that we're now seeing the other side of the 
> > adoption
> > curve for wide-area multicast in general, and as a result we aren't going to 
> > have even
> > the low volume of interesting applications for IPv6 multicast that drove the 
> > original adoption
> > for IPv4.
> Funny to see this.  I started cobbling together an email last week
> asking about (IPv4) multicast sources:
>
> --------------
>
> I'm hunting for some VLC-digestible multicast sources.  Once upon a time:
>
>    http://www.internet2.edu/multicast/sources.html
>
> actually pointed to working sources.  I suspect the only way of fixing
> that page is to remove it.
>
> I don't find a great deal of inter-domain mcast when googling.
> Northwestern stands out:
>
>    http://www.i2-multicast.northwestern.edu/
>
> but I sure don't see much else.  Perhaps copyright issues stand in the
> way of folks sourcing content.  But more likely is that no one cares
> about multicast.
>
> --------------
>
> For several years, the only production requirement we had for
> multicast here was a faculty member who made use of Conference XP for
> collaborating with folks at several other sites.  This faculty member
> served as our mcast routing monitoring system.  When it broke, he'd
> let us know.  But I've broken multicast a couple of times over the
> past year and haven't heard any complaints, so I'm guessing he's no
> longer making use of it.
>
> We aren't yet routing IPv6 multicast, but likely will be within the
> next four to six months.  Though I'm not sure why.

--
Gurcharan S. Khanna, Ph.D.
Director of Research Computing
Office of the Vice President for Research
Assistant Research Professor, GCCIS Ph.D. Program
Director, Interactive Collaboration Laboratory
Rochester Institute of Technology
Phone: 585-475-7504  ~  Cell: 585-451-8370
http://rc.rit.edu http://rc.rit.edu/directions.html


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