Re: maximum number of outgoing connections

Igor Sysoev wrote this message on Mon, Aug 20, 2007 at 19:11 +0400:
It seems that FreeBSD can not make more than

net.inet.ip.portrange.last - net.inet.ip.portrange.first

simultaneous outgoing connections, i.e., no more than about 64k.

If I made ~64000 connections 127.0.0.1:XXXX > 127.0.0.1:80, then
connect() to an external address returns EADDRNOTAVAIL.

Isn't this more of a limitation of TCP/IP than FreeBSD? because you
need to treat the srcip/srcport/dstip/dstport as a unique value, and
in your test, you are only changing one of the four... Have you tried
running a second we server on port 8080, and see if you can connect
another ~64000 connections to that port too?

--
John-Mark Gurney Voice: +1 415 225 5579

"All that I will do, has been done, All that I have, has not."
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