1.) Are there any pointers to URLs that deal with issues to set up for both incoming and outgoing multicasts? I can't find many examples that show this from an ISP point of view.
The best tutorial IP multicast training materials I'm aware of are those at ftp://ftpeng.cisco.com/ipmulticast/training/index.html If you're looking for something more cookbook, I think the Internet2/Abilene multicast cookbook at http://www.abilene.iu.edu/mccook.html is also a nice resource (although obviously it is most useful if you are connecting via Internet2/Abilene).
2.) Is it worth my effort? In other words, what % of the internet audience is capable of receiving multicast IP from an audio feed?
One data point is that there are over 4600 MBGP prefixes getting advertised (see, for example Marshall Eubanks' presentation at http://www.nanog.org/mtg-0110/ppt/eubanks/sld011.htm). Whether or not that's enough of an audience to make IP multicast worthwhile is a decision you'll have to make for yourself. But if nothing else, by enabling IP multicast, you should be able to receive technical content such as the NANOG meetings, IETF meetings, etc. (which I would assert is worthwhile in and of itself).
3.) Are there any examples of audio feeds that use Multicast I can test with?
The University of Oregon makes KWAX (classical radio) available via IP multicast; if you are using IP/TV or a compatible client, select the session "UO Presents KWAX Classical Radio"), and we also have a variety of video sources up for folks to try. Regards, Joe
3.) Are there any examples of audio feeds that use Multicast I can test with?
The University of Oregon makes KWAX (classical radio) available via IP multicast; if you are using IP/TV or a compatible client, select the session "UO Presents KWAX Classical Radio"), and we also have a variety of video sources up for folks to try.
Regards,
Joe
www.on-the-i.com has four channels that multicast music. I prefer channel 2 but that's just me :-) Mark
On Mon, 22 Apr 2002, Mark Radabaugh wrote:
www.on-the-i.com has four channels that multicast music. I prefer channel 2 but that's just me :-)
Yes, but how do I get those multicast packets to flow over my network? It seems the Mbone has dropped of the face of the net and everyone still doing multicast is doing it natively so if your transits aren't multicast capable you're out of luck.
Hello; Thanks for the plug ! We have the multicast tester applet : http://www.multicasttech.com/mt/ We have MPEG-4 video conten http://www.multicasttech.com/otv and we have On-the-I music audio. The old MBone is dead - the best way is to get native multicast - look at the ISP list at http://www.multicasttech.com/status/index.html and http://www.multicasttech.com/status/mbgp.sum If you need multicast and your ISP can't or won't deliver, please contact us and we will see what we can do. -- Regards Marshall Eubanks Iljitsch van Beijnum wrote:
On Mon, 22 Apr 2002, Mark Radabaugh wrote:
www.on-the-i.com has four channels that multicast music. I prefer channel 2 but that's just me :-)
Yes, but how do I get those multicast packets to flow over my network? It seems the Mbone has dropped of the face of the net and everyone still doing multicast is doing it natively so if your transits aren't multicast capable you're out of luck.
T.M. Eubanks Multicast Technologies, Inc 10301 Democracy Lane, Suite 410 Fairfax, Virginia 22030 Phone : 703-293-9624 Fax : 703-293-9609 e-mail : tme@multicasttech.com http://www.multicasttech.com
On Mon, Apr 22, 2002 at 11:41:24PM +0200, Iljitsch van Beijnum wrote:
Yes, but how do I get those multicast packets to flow over my network? It seems the Mbone has dropped of the face of the net and everyone still doing multicast is doing it natively so if your transits aren't multicast capable you're out of luck.
You are a customer. Request it from your transit provider. If that still doesnt work, take your money to someone who offers what you want. In many cases the lack of customer demand prevents deployment in ISP networks ways too often IMHO. Even if there are engineers who want to deploy it the lack of demand from paying customers makes it a low priority task if something happens at all. I also experienced that people who want multicast from their upstream give up too soon. Sales and account reps are sometimes "confused" about multicast. Installing tunnels won't solve the problem. I even believe the opposite is true: There is less "pressure" on the transit ISPs from their customers to deploy multicast and offer it to their customers. -tb
On Tue, 23 Apr 2002, Torsten Blum wrote:
Yes, but how do I get those multicast packets to flow over my network? It seems the Mbone has dropped of the face of the net and everyone still doing multicast is doing it natively so if your transits aren't multicast capable you're out of luck.
You are a customer. Request it from your transit provider. If that still doesnt work, take your money to someone who offers what you want.
Sure, if I _really_ want multicast I can do that. But the thing is, I haven't actually used it, so how do I know if it's worth the trouble?
In many cases the lack of customer demand prevents deployment in ISP networks ways too often IMHO. Even if there are engineers who want to deploy it the lack of demand from paying customers makes it a low priority task if something happens at all.
It would help if there was some way for customers to experience multicast so they can see if this is something they want.
On Tue, 23 Apr 2002 12:50:23 +0200 (CEST), Iljitsch van Beijnum <iljitsch@muada.com> wrote: [multicasting]
It would help if there was some way for customers to experience multicast so they can see if this is something they want.
Why not build a small LAN to try it out on? If you can find other people who want to experiment with it at their sites, you could set up tunnels to each other. -- W . | ,. w , "Some people are alive only because \|/ \|/ it is illegal to kill them." Perna condita delenda est ---^----^---------------------------------------------------------------
participants (6)
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Iljitsch van Beijnum -
Joe St Sauver -
Lionel -
Mark Radabaugh -
Marshall Eubanks -
Torsten Blum