[no subject]

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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</pre>
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<li><strong><a name="00344" href="msg00344.html">[ale] Ethernet bandwidth choker</a></strong>
<ul><li><em>From:</em> bob at verysecurelinux.com (Bob Toxen)</li></ul></li>
<li><strong><a name="00371" href="msg00371.html">[ale] Ethernet bandwidth choker</a></strong>
<ul><li><em>From:</em> dcorbin at machturtle.com (David Corbin)</li></ul></li>
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<li><strong><a name="00329" href="msg00329.html">[ale] Ethernet bandwidth choker</a></strong>
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