Hi all, ive got 2 internet connections set up via the nano howto (which are working great) and we are running NAT. Was looking in to qos mainly to stop large http downloads/ftp downloads from hogging the line so that browsing for other users doesnt slow to a crawl, but if the line is free and no one is doing anything then for it to use the available bandwith. The wondershaper sounded exactly what i wanted, i obviously had to customize this slightly to get my other connection to be shaped as well. my connections are 2 adsl connections running at 512kbit:256kbit, i compiled the kernel with all the tos + iptables stuff (eventually) so that the script ran without any errors, once it had i did a download on each pipe and then tried to ping jolt.co.uk and google.co.uk, jolt.co.uk normally is about 15ms, so i was hoping that it would maybe be 200ms with my new shaping, but it was coming at about 900ms+ google was the same. Browsing other website was also to a crawl (what i was trying to avoid) but i did notice that when traffic came from our mail server through my gateway it was only receiving at about 25k/sec instead of 2mb/sec etc as its on a 100mbit switch. So something was obviously shaping, so i suppose i will now need to look in to specifying some of the hosts which are local to me but are on the outside interfaces and for them not to be shaped.. But still no better off :(
Ive been reading various howtos like the adsl bandwith management howto, but these havnt been updated in about 3 years and they mention various techniques which were being tried back then to help with these kind of situations, so what i really want is a howto which shows all these new features? or is this adsl bandwith management still current ? :)
I would recommend reading the masters thesis of Jesper Dangaard Brouer at http://www.adsl-optimizer.dk/thesis/
Altough he didnt release software yet (there is some code & patches in the pdf file) which could lead to the best solution, you could estimate the adsl overhead with real knowledge, and not like it says in some scripts (put x kbit less than the link bandwith, or 5% less,...)
Too much. Because ATM overhead (5/53), 463/231 is the actual maximum bandwith.my network diagram
Lan machines -> Linux Router -> Alcatel Router -> ADSL Lan Machine -> linux router -> alcatel router2 -> ADSL
Alcatel router -> Linux router Alcatel router -> mail server etc
my modified wondershaper script is below: if anyone could point out some errors and or maybe point me to somewhere where i could learn how to do what i want better please let me know.
#!/bin/bash -x # Wonder Shaper # please read the README before filling out these values # # Set the following values to somewhat less than your actual download # and uplink speed. In kilobits. Also set the device that is to be shaped.
DOWNLINK=512 UPLINK=256
And you have yet to consider the per packet overhead. Read the thesis I mentioned.
DEV=eth1 DEV2=eth2
DOWNLINKlan=512 UPLINKlan=256 DEVlan=eth1
Did you use the DEVlan variable? eth1 is LAN and external at the same time?
Have you looked at http://routeskeeper.sourceforge.net/ or http://selab.edu.ms/twiki/bin/view/Networking/RoutesKeeperProject
Regards, Francisco. _______________________________________________ LARTC mailing list LARTC@xxxxxxxxxxxxxxx http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc
