On Fri, 2007-07-27 at 11:57 +1000, Robert Collins wrote: > On Fri, 2007-07-27 at 11:15 +0930, Glen Turner wrote: > > Secondly, if you run a QoS network connected > > to a non-QoS network then you might want to do deep packet > > inspection and set the DSCP on incoming traffic. Otherwise > > you end up with a situation where the user on the non-QoS > > network gets a nice picture but the user on the QoS network > > gets the poor picture. > > Can you not just mark all traffic from the non-QoS network as low > priority non-realtime ?
Hi Robert, Oh course, and without any packet inspection that's what is done. All incoming data from a non-QoS peer has all non-control traffic re-marked into DSCP=0. Now let's look at this from the user's point of view. The user who has gone to the trouble of setting up QoS still ends up viewing a best effort picture. So, if it were possible, it would be nice to do deep packet inspection on the data and pull the media streams into the right classes. Unfortunately, the low speed and lack of robustness of the boxes which might do this made us abandon the idea for the present. Best wishes, Glen -- Glen Turner -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
