[no subject]

David

On Wednesday 08 December 2004 11:04, Dow Hurst wrote:
> Add the rate limiting to both interfaces of your router/firewall in
> between the two feeds your wanting to work with.  That way you
> completely control the bandwidth thru the router.  Also with tweaking
> iptables and the tc rate limiting you can pick what is limited.  The
> advanced routing howto has a lot of info and links on this subject.  You
> can limit down to modem speeds and up to the bandwidth of your feeds.
> It is very versatile.
> Dow
>
> Michael Still wrote:
> >On Wed, 8 Dec 2004 06:45:41 -0500, David Corbin <dcorbin at enttek.com> wrote:
> >>I need a device that I can use to simulate low-bandwidth between two
> >> ethernet machines.  Ideally,  the box would have some limited interface
> >> to enter in  a desired bandwidth to simulate.  Something that works in
> >> increments of 64kbs would be fine.
> >>
> >>1) Is there a correct name for such a product.
> >>2) Any recommendations?
> >
> >You can do this with rate limiting between ethernet interfaces I
> >believe.  Here's an example you can play with:
> >
> >tc qdisc add dev eth0 root handle 1: cbq avpkt 1000 bandwidth 100mbit
> >
> >tc class add dev eth0 parent 1: classid 1:1 cbq rate 64kbit allot 1500
> >prio 5 bounded isolated
> >
> >tc filter add dev eth0 parent 1: protocol ip prio 16 u32 match ip dst
> >0.0.0.0/0 flowid 1:1
> >
> >It has been my experience that the limiting is not exactly at 64kbits
> >(or it might be a problem at higher limits) so you might have to
> >change it to get it to work at the right speed.  Once you do find the
> >right limit, it does stay under it.  Also this only affects outbound
> >traffic, but you can make it affect inbound with more tc filter rules.
> >If the interface on the sending side is rate limited though, then I
> >wouldn't mess with the inbound limit.
> >_______________________________________________
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> >Ale at ale.org
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</pre>
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<li><strong><a name="00327" href="msg00327.html">[ale] Ethernet bandwidth choker</a></strong>
<ul><li><em>From:</em> dcorbin at enttek.com (David Corbin)</li></ul></li>
<li><strong><a name="00329" href="msg00329.html">[ale] Ethernet bandwidth choker</a></strong>
<ul><li><em>From:</em> stillwaxin at gmail.com (Michael Still)</li></ul></li>
<li><strong><a name="00340" href="msg00340.html">[ale] Ethernet bandwidth choker</a></strong>
<ul><li><em>From:</em> Dow.Hurst at mindspring.com (Dow Hurst)</li></ul></li>
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