Re: Van Jacobson's net channels and real-time

From: Jan Kiszka
Date: Thu Apr 27 2006 - 06:00:41 EST


2006/4/27, David S. Miller <davem@xxxxxxxxxxxxx>:
>
> Can I recommend a trip to the local university engineering library for
> a quick readup on the current state of the art wrt. packet
> classification algorithms?
>
> Barring that, a read of chapter 12 "Packet Classification"
> from Networking Algorithmics will give you a great primer.
>
> I'm suggesting this, because all I see is fishing around with
> painfully inefficient algorithms.
>
> In any event, the initial net channel implementation will likely just
> do straight socket hash lookups identical to how TCP does socket
> lookups in the current stack. Full match on established sockets, and
> failing that fall back to the listening socket lookup which allows
> some forms of wildcarding.
>

Sorry that you had to remind of the different primary goals. I think
we may look for something pluggable to support both large-scale rule
tables as well as small ones for embedded RT-systems.

Jan
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