Here's a stab at the overheads. By the looks of RFC2250 when you take a 44.1kHz 128kbps mp3 and RTP stream it, the minimum you can send it as is a single 417 byte frame. So 3336 bits of MP3 data +128bit RTP header +16bit UDP header +20bit IP header gives a 3500 bit frame you need approx 40 of those a second to give you 128kbps of audio rate So thats a total bitrate of 136.71875 kilobits/sec over 24 hours thats 1.40815973 gigabytes So even with a worst case overhead (not taking into account an insane PMTU) everyone is in the ballpark with approx 1.5G/day Dean Richard Patterson wrote:
Richard Naylor wrote:
Don't get into video, the numbers are bigger :-)
Good thing you pointed that out, John probably didn't realise.
John, 128kbps MP3(or whatever) will use.... 128kbps per connection, as several people have tried to point out. The overheads are negligible.
-Richard
_______________________________________________ NZNOG mailing list NZNOG(a)list.waikato.ac.nz http://list.waikato.ac.nz/mailman/listinfo/nznog