On Wed, Jun 04, 2008 at 08:29:21AM -0700, Nelson Minar wrote: > If you're on an asymmetric link like ADSL there's only so much QoS your > router can do. In particular if your lodger is downloading lots of big > files via BitTorrent your incoming connection is going to be saturated > and your router can't usefully shape incoming traffic.
Don't know what Tomato is capable of, but (a) this has nothing to do with the link being asymmetric; (b) it isn't true either. With the way traffic shaping/QoS is normally implemented, only the buffering side can do it. So, your network looks something like this: Internal -> Router-Modem [100mbps] Router-Modem -> ISP Router/Modem [8mbps/768kbps] ISP Router/Modem -> Internet [ 100+ mbps ] So, data coming from your computers comes in to the router at 100mbps. Your router must then send it up to send over the 768kbps upstream; since 768k < 100m, your router queues the data (and possibly drops packets). Your router can do traffic prioritization on this queue. Data coming from the Internet, on the other hand, winds up queued when going from the fast 100+ m link to the slower 8m link—that is, on your ISP's router. Unfortunately, they do not properly prioritize it[1]. There is a solution, though: Move the queueing into your router. Depending on the router, the easiest way to do this is probably to make your Ethernet link be a 7.99mbps link going out of the router. It costs you a trivial amount of download speed, and having done this before (not with Tomato, though), is definitely worth it. [1] Don't know why none of them have offered this service. "Keep web browsing fast, even during large downloads!". Maybe there is a business opportunity here. _______________________________________________ timekeepers mailing list [email protected] https://fortytwo.ch/mailman/cgi-bin/listinfo/timekeepers
