On Mon, 20 Mar 2006, 'Hammond, Robin-David%KB3IEN' wrote: > What is the difference between prioritizing A vs deprioritizing B if A > and B are on the same network concurently? Either way A is now above B. Well, the difference is 'best effort'.
I (as an Internet provider) am obligated to use my best effort to deliver all packets. If I deprioritize certain packets, I fail this (and can be accused of unfair competition) > IMHO treating VOIP like 'any other data' is exactly the problem. VOIP is > not any other data and refuses to be treated as such. Minor latency and > packet re-ording matters not to TCP nor single-datagramme UDP (like > DNS). Voip is stream of time sensitive UDP datagrammes, it has no > viable provisions for retransmit nor graceful loss recovery at this > time. If your network never exceeds 10% utilization, this might not be a > problem for you. Im fairly sure on my network and most definitely sure > that on Alex's network utilization is routinely above 10% during peek > hours. a) You mean 99% utilization, not 10%. If there is no congestion, there's no problem. Note that I don't mean "5 minute average is 90% of capacity". I mean, "at any given interval, utilization does not exceed capacity". b) Sounds like someone still does not understand what a 'best effort' means. Also, you missed my point that Vonage chose to rely on 'best effort' internet service to provide its service. You get what you pay for. Consider following things: You can buy FiOS 20/2 connection for 80$/month. You can buy 20Mbit connection in Japan for 40$. Yet, buying a point-to-point E1 (2mbit) between US and Japan would cost you around 5000$/month. Why is that? Because of "best effort". While with your two consumer-grade intarweb connections, you may be able to do 2Mbit between US and Japan, you have absolutely no guarantee you will be able to do that 24/7, nor recourse if you can't. Internet is based on "best effort" service. Congestion is a *normal* and *expected* condition. -alex -- NYCwireless - http://www.nycwireless.net/ Un/Subscribe: http://lists.nycwireless.net/mailman/listinfo/nycwireless/ Archives: http://lists.nycwireless.net/pipermail/nycwireless/
