All things related to multicast

[Marshall Eubanks <>]

Bill Owens wrote:

> At 15:40 -0400 10/3/02, Alan Crosswell wrote:
>
> > (Does
> > anyone already have a script lying around to take a list of IPs and
> > find out what ASNs they are in?)
>
>
> No, but I think it would be easier to find them in ARIN's IP network 
> assignments list: <ftp://ftp.arin.net/info/current/network.txt> The 
> network names aren't always immediately obvious, but most of them can be 
> guessed (or you can resort to a WHOIS lookup).
>
> Actually, more interesting would be pulling the MBGP table from your 
> Cisco and looking for the prefixes there. Those are the folks who 
> definitely ought to be using multicast. . .


These may help -

Our MBGP table

http://www.multicasttech.com/status/mbgp.full

a summary

http://www.multicasttech.com/status/mbgp.sum

The MISP list
http://www.multicast-isp-list.com/index2002.html


Marshall



> > And, I've found the Windows quicktime playback of RTP MPEG1 to be far
> > inferior to IPTVs.
>
>
> Mac QuickTime seems to have some problems over the longer term (tens of 
> minutes), sometimes it will freeze either the audio or video and then 
> not recover well, if at all. Since I was watching with rtpqual at the 
> same time I could confirm that this was not related to packet loss, nor 
> did it seem to be anything else I was doing on the system. I restarted 
> the viewer (though not the app itself) several times during this 
> morning's multicast.
>
> QT 6 also has a really annoying 'feature' of speeding up or slowing down 
> the audio to get it back in sync with the video after packet loss. It 
> would make a great deal more sense to just drop some frames, IMO, but I 
> haven't found a way to turn this off.
>
> On the bright side, QT with the MPEG-2 decoder add-on seems to do a 
> great job, at least with a reasonably powerful machine to run on. . .
>
> Bill.


--
                                 Regards
                                 Marshall Eubanks

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T.M. Eubanks
Multicast Technologies, Inc
10301 Democracy Lane, Suite 410
Fairfax, Virginia 22030
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 Status of Multicast on the Web  :
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