Hey David, I understand all that, I am willing to make sacrifices...
Never heard of MRQ, I know IMQ is a famous shaping protocol but it needs kernel patching and right now I don't feel like compiling a kernel. Still an option though. What annoys me is that I've found like 5 different scripts/instructions sets for HTB Traffic Shaping... I follow the instructions line by line... I even try to improvise since I understand some things. But in the end, although everything is configured, traffic is identified and sent to the proper class/qdisc, PACKETS ARE NOT DROPPED! You can see the RATE being over the limit, but HTB doesn't seem to care! Its nerve-breaking :P BTW, is there a way to use the TCP window manipulation? I recall reading there's no way yet. I'll try that wondershaper script when I get home, seems to me it has some extra parameters to the tc command that could do the trick (hopefully?)... Thanq, Alex On Monday 23 January 2006 15:12, you wrote: > Alex, > From my experience the main problem is believe it or not your download > speed as well, the ISP creates huge buffers of data being sent to you. > If you want low latency you will have to disable the ISP downlink buffer > or at least reduce it, normally from my experience a 1.5Mbit line needs > to be reduced by half at least. Once you have done this you will have > much lower latency. > > If you are wondering why this happens it is because while your uplink > is not saturated any more, believe it or not a saturated downlink will > cause the same effect. The problem is while you have control over your > uplink buffer, you can not control what the ISP sends you. The only true > method is use of TCP window manipulation or use of the MRQ module which > does the same as HTB, tries to define priorities on accepting packets > and droping others so the ISP will "understand" you are not able to > accept and reduct the TCP window size. > > To make a long story short, you will not be able to obtain a fast > download stream AND hope to obtain minimum latency for gaming unless you > use tc to cut your bandwidth by half or more and at the same time it > will help to place the MRQ module. > > Another important thing, using all the HTB/MRQ modules can create packet > buffer problems with pptp which already has its own buffering, if you > see errors in your /var/log/messages or dmesg coming from pptp then make > sure to disable the buffer (pptp --nobuffer) > > Cheers, > -David > > Alex Alexander wrote: > >On Monday 23 January 2006 13:42, you wrote: > >>Alex Alexander wrote: > >>>Greetings everyone, > >>> > >>>I'll try to keep it short. I have a linux routing machine connecting my > >>>384kbps adsl line (eth1) with my local network (eth0). Its running > >>> Debian unstable, w/ kernel 2.6.15 and the usual services (proxy, dns, > >>> dhcp, etc etc). > >>> > >>>I am trying to shape traffic, both incoming and outgoing, to avoid high > >>>latency in games like Battlefield 2 and Star Wars Galaxies whenever > >>>someone on the network decides to do anything internet-related. > >> > >>I don't know the solution to your exact problem, but how about just > >>trying an existing script that is known to work? I used wondershaper and > >>it worked perfectly for me, it is simple to setup and known to do the > >>work properly. > >> > >>You can tweak it after you get it working to do anything special you > >> want. > >> > >>Baruch > > > >Thanks, I will try wondershaper ( http://lartc.org/wondershaper/ ). > > > >However I forgot to mention that I have already tried to use Shorewall's > >built-in tc support with no luck... > > > >I'll get back to you with my results :) > > > >Alex > > > >================================================================= > >To unsubscribe, send mail to [EMAIL PROTECTED] with > >the word "unsubscribe" in the message body, e.g., run the command > >echo unsubscribe | mail [EMAIL PROTECTED] > > ================================================================= > To unsubscribe, send mail to [EMAIL PROTECTED] with > the word "unsubscribe" in the message body, e.g., run the command > echo unsubscribe | mail [EMAIL PROTECTED] ================================================================= To unsubscribe, send mail to [EMAIL PROTECTED] with the word "unsubscribe" in the message body, e.g., run the command echo unsubscribe | mail [EMAIL PROTECTED]
