On 7/2/05, Eduardo Bejar <wonka@xxxxxxxxxxx> wrote: > Hi Everyone, > > Please help me on something regarding delay pools, I´ve been googleing for a > while but get the same results. > > Here's my situation: > > Currently I´m using HTB for traffic shaping per IP, so I create a rule to > setup the total bandwidth that an IP can use. So let´s say that an IP > address must use 128Kbps total. I create the HTB rule for that and it works > fine. > > But now I´d like to use delay pools and transparent proxy, so when a user > downloads a large file, this file downloading slows down to let´s say > 32Kbps, leaving 96Kbps free for browsing. But if the user downloads a small > file, it should be downloaded at full 128 Kbps. > > So first question: Is delay pools a way to accomplish this? > > Now, I´m testing the following delay pools config: > > acl client1 src 66.67.68.69/255.255.255.255 > delay_pools 1 > delay_class 1 2 > delay_parameters 1 -1/-1 4000/500000 > delay_access 1 allow client1 > delay_access deny all > > But this rules do not do what I´m trying to do. According to what I read on > the Squid FAQ, that should limit all bandwidth for that IP to 32Kbps, for > every file downloaded with a size bigger than 500 KB. Well this is not quite true. The 500KB assigned isn't a filesize it is the per client bucket. from http://squid.visolve.com bucket: an individual delay bucket represents a traffic allocation, which is replenished at a given rate (up to a given limit) and causes traffic to be delayed when empty. > So second question is: what am I missing? Once the clients bucket fils up with 500KB the speed is droped to 32Kbps no mater what file size he downloads/browses next and stays that way until the bucket replenishes (stops downloading/browsing for a while). > And finally, third question: When using delay pools, while I download a > large file, will I be able to browse at full speed (128Kbps), or will > browsing be limited also to 32Kbps as the downloading is in place? So far it > seems that while a download is in place, everything else that the IP does > gets queued on the same pool and gets the same 32 Kbps. why don't you try to use 2 delay pools with acl restrections acl downloads urlpath_regex -i <path to file with extensions> in the file put extensions (one in each line): \.mp3$ \.avi$ \.exe$ \.zip$ # and so on then configure the delay pools to work with the downloads acl delay_pools 2 # in one pool use delay_class 1 2 delay_parameters 1 -1/-1 4000/256000 delay_access 1 allow <clients_acl> downloads delay_access 1 deny all # in second pool use delay_class 2 2 delay_parameters 2 -1/-1 8000/500000 delay_access 2 allow <clients_acl> !downloads delay_access 2 deny all that way you have to delay pools one for normal browsing and full/medium bandwidth second one for special file extensions (downloads) with limited bandwidth > Thank you for your help, It has been a while the last time I dealt with delay pools so I hope this works. > Regards > > Edo -- Regard. Abu Khaled
