Filtering and forwarding with 100mb?
Fri, 10 Aug 2001 13:21:22 +0100
> also save me money on switches and serve as routers. the
> expected speed is
> 100mb full duplex between departments. (they surf the web,
Ahh I see.
> regular office environment).
> Is there a cpu/mb sec ratio. also i read in the previous
> postings that there
> are better hardware 100mb ethernet cards for the job.
Well how often does it run at 100mb between departments? I have a similar
thing with a p166 32mB and 2 random 100mB cards and the speed is perfectly
acceptable to all concerned. A simple test would be to take 2 machines
either side transfer files from one side to the other - this will give you
an idea of speed.
> Is there a minimum memory requirements or a limit on
> concurrent connections.
I think this is in the FAQ. Each connection takes ~500 bytes of non-swapable
kernel memory for connection tracking. The default for you can be found by
cat /proc/sys/net/ipv4/ip_conntrack_max. And echo 12345 >
/proc/sys/net/ipv4/ip_conntrack_max will change this. On my 32mb system it
appears to be 2048 which I haven't hit yet. It depends how much cross
network traffic you get.