Cell Relay Archive[Date Prev][Date Next][Thread Prev][Thread Next] [Date Index][Thread Index][Author Index][Subject Index] Re: ip multicast
>> Our University campus roter is not IP multicast enabled. However I >> can "listen" to the radio stations on Internet (which I suppose to >> use IP multicast). > You are probably using Real Audio, which is not IP multicast. > It is (IMHO) a straight IP connection. RealAudio does contain support for multicast, but since most RealAudio servers don't have IP multicast connectivity to most clients, it is rarely noticed - RealAudio "falls back" to traditional unicast communication. > I'm listening to Virgin Radio, www.virginradio.co.uk at the moment. > One wonders when the strain will start to show, when more and more > users use Real Audio and Real Video streams (dare I mention the > Clinton tape?) I for one (and I guess a lot of the people in this > group do too!) that ATM can then do the job it was intended to, and > ride to the rescue. This particular application seems to be quite well supported by IP multicast. Implementing IP multicast on the complete Internet would seem like a trivial task compared to building a public ATM service to replace the Internet. Not that I think that the former will happen anytime soon, but the latter seems really unlikely. As more and more people get fast connections to the Internet (using IP over Cable or xDSL), multicasting video/audio will become more interesting to ISPs, because it is a relatively cheap way to fill up those lines. -- Simon Leinen simon@babar.switch.ch SWITCH http://www.switch.ch/misc/leinen/ Who is General Failure & why's he reading my disk? |
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