On Thu, 12 Jul 2007 13:24:48 -0700 (PDT) David Miller <[EMAIL PROTECTED]> wrote:
> From: OBATA Noboru <[EMAIL PROTECTED]> > Date: Thu, 12 Jul 2007 22:59:50 +0900 (JST) > > > How do you think TCP timeouts in Linux can adapt to such changes > > in network environment? > > I'm honestly not interested in discussing this any more > and Ian has even showed that the RFCs state that if we have > a maximum it must be at least 60. > > So really, there is no chance of merging a TCP_RTO_MAX > decreasing patch, sorry. One question is why the RTO gets so large that it limits failover? If Linux TCP is working correctly, RTO should be srtt + 2*rttvar So either there is a huge srtt or variance, or something is going wrong with RTT estimation. Given some reasonable maximums of Srtt = 500ms and rttvar = 250ms, that would cause RTO to be 1second. -- Stephen Hemminger <[EMAIL PROTECTED]> - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
