Date: Thu, 17 Feb 2000 22:49:07 +0100 From: "Leif Neland" <leifn@neland.dk> To: <freebsd-isp@FreeBSD.ORG> Subject: "pop3 server has not responded in 60 seconds. Retry / abort?" Message-ID: <012501bf7991$bda83700$0e00a8c0@neland.dk>
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Some users have problems receiving large emails. A qpopper is running for that user, their outlook express is open, I can ping their machine, but no mail is flowing. I've also seen the same thing happening when they are sending. Just to understand the principle: TCP/IP is supposed to be reliable, right? If something happens, TCP/IP is supposed to do retransmits. If TCP/IP looses a package anyway, will the programs "on top" (application layer?) just wait, or will they too start retransmitting? It seems like if the traffic has stopped, no amount of waiting will cause traffic to start again. This happens on both analog PM2 and ISDN PM3. The route to the portmasters goes via a cisco doing ospf. The mailserver is (sorry) still li*ux, but this has happened also when I moved some customers to try using a Fbsd stable box. I wouldn't mind a solution, but I'm mostly asking this to enhance my knowledge of tcp/ip... Leif Of cause, To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message
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