All things related to multicast

["Curtis, Bruce" <>]

On Jan 8, 2014, at 2:20 PM, Bill Owens 
<>
 wrote:

> On Wed, Jan 08, 2014 at 02:11:09PM -0600, Tim Peiffer wrote:
>> Has anyone developed and kept current a list of multicast sources
>> that are known active?  This is a broader question than a question
>> of 'need multicast test stream'.  A bonus would be if anyone had
>> perl/python script, etc that listens on and builds a database of
>> active SAPs.
> 
> Once upon a time there were multiple variations on this. As far as I know 
> they're all dead. As is inter-domain multicast, for the most part. . .
> 
>> My method currently: Periodically I run through a list of SAP's
>> visible in VLC and build a M3U playlist file and use for my 'tv
>> guide' of active channels.  Trolling the SAPs are hit and miss, and
>> there are a number of SAP sources worldwide that are advertising in
>> the Administratively Scoped range 239.0.0.0/8 that provide a
>> significant noise source.
> 
> That's probably the best bet at this point. We used to have the multicast 
> beacon to verify connectivity too, but I don't know whether anyone is 
> running beacons any more.
> 
> Bill.

  A few folks are still running dbeacons.  A google search for “dbeacon 
current stats” finds a few.

http://www.beacon.ja.net/cgi-bin/m4

http://noctv.funet.fi/nordunet/

http://syd-a-ext1.aarnet.net.au/matrix/

---
Bruce Curtis                         

Certified NetAnalyst II                701-231-8527
North Dakota State University