Re: fix TCP roundtrip time update code

From: David Mosberger (davidm@napali.hpl.hp.com)
Date: Wed Jun 04 2003 - 01:12:47 EST


>>>>> On Tue, 03 Jun 2003 22:52:45 -0700 (PDT), "David S. Miller" <davem@redhat.com> said:

  David> From: David Mosberger <davidm@napali.hpl.hp.com> Date:
  David> Tue, 3 Jun 2003 22:34:30 -0700

  David> You can't go higher than 1000 conn/sec per client (IP
  David> address) because otherwise you run out of port space (due to
  David> TIME_WAIT).

  DaveM> echo "1" >/proc/sys/net/ipv4/tcp_tw_recycle

  DaveM> It should eliminate this limit. Unfortunately we can't
  DaveM> enable this by default because of NAT :(

Ah, yes, provided PAWS is enabled, this would give you a time_wait
timeout of 3.5*RTO. Nice.

        --david
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