Gentoo Archives: gentoo-user

From: William Kenworthy <billk@×××××××××.au>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] [OT]Throttling/Restricting download speeds
Date: Sun, 17 Jul 2005 23:43:42
Message-Id: 1121643542.2064.13.camel@rattus.localdomain
In Reply to: [gentoo-user] [OT]Throttling/Restricting download speeds by
1 Checkout the QOS modules in the kernel and the iproute package. There's
2 plenty of examples on the net as well as mailing lists and bundled
3 scripts that will serve as a base for what you want to do.
5 Also rsync and wget have bandwidth limiting options that may be
6 easier/more suitable for what you want to do. As with everything that
7 looks good, QOS has some undesirable effects on gross throughput and the
8 smoothness of traffic flow so it doesnt suit everyone. I dont think you
9 can dynamicly alter the rate of wget or rsync, but killing the process
10 and resuming with new parameters a minute or so later via an "at" or
11 "cron" job is easy.
13 I am in OZ and found that with iinet, one has to always be aware of the
14 dynamic change of ADSL rates that occur. Currently I am on 960/7616
15 up/down and it does go randomly go up or down. In the worst case you
16 could be limiting at a ceiling of 512k when you have ~8M+ available
17 (with QOS you need to set a ceiling rate equal to whats available) Never
18 did find a reliable way around that, but I have since dropped QOS as
19 with these rates it just isn't needed on a home system.
21 BillK
24 On Sun, 2005-07-17 at 18:46 -0400, agl@×××××××.au wrote:
25 > Hi all,
26 > Here in Australia the internet access plan I have is capped at 12GB
27 > downloads/month during "peak" hours and then an additional 24GB/month during
28 > "offpeak" hours, ie 2am - 9am. Rather than sit up until 2am to kick off a
29 > download, I was wondering if it was possible to somehow throttle a connection,
30 > or even a port, so that I could kick off the down load at say 11pm with the
31 > connection throttled to only a few KB/s and then at say 2am, a cron job will
32 > unthrottle it back to its full speed hence making most use of the offpeak time.
33 > I'm currently using gshield on top of iptables as my firewall.
34 >
35 > Any thoughts greatly appreciated.
36 > Andrew
37 --
38 William Kenworthy <billk@×××××××××.au>
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