Date: Fri, 17 May 1996 08:16:13 -0500 From: Jim Lowe <james@miller.cs.uwm.edu> To: hasty@rah.star-gate.com, kuku@gilberto.physik.rwth-aachen.de Cc: multimedia@FreeBSD.ORG Subject: Re: mbone w/o mbone connection Message-ID: <199605171316.IAA17378@miller.cs.uwm.edu>
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> > > > What you are looking for is vgw which is an RTP gateway program. I > > > > beleive it is still in Alpha stage, but you might find it useful. > > > > See: ftp://daedalus.cs.berkeley.edu/pub/vgw/ > > > > > > Actually, if he has mbone capability at his site then I don't see why > > > he can't establish a tunnel to his home box.... > > > > This seems evident. Jims suggestion can be thought to be an > > alternative to bypass the MBONE structure. > > > > Now I see things like vgw useful to connect end-leaf nodes like from > an ISP to a (cough) Win95 box or to a (Amancio about to pass out now) > to a Win95 Lan... > Actually, I could see vgw very useful for things like ISDN or 28.8k links. One could grab PCM RTP packets and convert them to gsm or lpc rtp packets in the gateway and send them down a slower speed link (abit degraded, but still understandable). One could also nab video RTP packets at 128k and lower the frame/bit rate via vgw and send them down a slower speed pipe. Having something like a remote control vgw/sdr could be very useful to the end user. They could just pick out what they wanted to watch and listen to, modify the a/v through a rtp filter mechanism and have it sent down their slow speed link. This would leave the degradation of a/v decision up to the end user rather than up to the network (as packet loss). Certainly very useful for many things. -Jim
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