On Thu, Jul 26, 2001 at 03:07:34PM +0200, Luigi Genoni wrote:
>
> HI,
> I am mantaining an arpd daemon that take advantages from arpd support in
> linux kernel.
[..]
> This way, in fact, i saw that also on a double processor PIII 1 Ghz with
> around 500 arp entries i start to have performance problems, and two
> arpd users reported to me that with 1024 entries inside of arp cache, then
> cache overflows.
I had the same problem on 2.2.19 kernel.
The 1025th entry in arp (mostly static-arp entries) killed whole
networking on the host. Nearly every network call got "not enough buffer
space available".
I managed to solve the problem using blackhole routes instead of fake
static-arp entries (leaving about 360 arp entries, which work fine).
Greets,
Jacek
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