dummynet dropping too many packets

glenn Barber glenbarner at australia.edu
Tue Nov 3 06:58:55 UTC 2009


>Seems to me that spending money on a real packetshaper would be a
>better investment than donating to compromise on the free stuff (not
>that I'd want to discourage anyone from contributing to FreeBSD
>generally).

>Your problem is that at high traffic levels you need to reduce traffic
>flows, not just delay it as dummynet does. The entire point of traffic
>shaping is to smooth out your traffic flows; not to make it so choppy
>that you have packets sitting in a transmit queue for 1/2 millisecond
>in addition to the dummynet delays. While dummynet may not be dropping
>packets, you have packets being dropped in TCP stacks throughout your
>customer base, most likely.

>Barney

Packetshaper? It can't work over 300M/s.


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