> > At the moment even if the router claim to support QoS i had very bad > > experiences, basically if someone is using eMule you cannot use VoIP > > lines at all.
One very important rule to remember is that you want your shaping to be the bottleneck. Your modem can prioritize all it wants, but if it just sends out packets as fast as it can, the bottleneck is going to be upstream and typically ISPs have very large queues. So the prioritized packets may still end up sitting behind a lot of low priority packets and be subject to be being dropped. To do a good job, the modem needs to know what the upstream bandwidth limits are and make sure to stay a bit below that limit when sending packets out. Inbound policing is harder to do as you are on the wrong side of the bottleneck. You can still have some effect, but you have to typically give up a significant (5-20%) of your bandwidth to get things to work well. The LARTC document is a good (if a bit dated - notably IFB is prefered over IMQ for doing ingress shaping) source of information on this topic. _______________________________________________ Openpbx-dev mailing list [email protected] http://lists.openpbx.org/mailman/listinfo/openpbx-dev
