From owner-freebsd-isp Thu Feb 17 14: 0:52 2000 Delivered-To: freebsd-isp@freebsd.org Received: from ns.internet.dk (ns.internet.dk [194.19.140.1]) by hub.freebsd.org (Postfix) with ESMTP id 5743437B802 for ; Thu, 17 Feb 2000 14:00:47 -0800 (PST) (envelope-from leifn@neland.dk) Received: (from uucp@localhost) by ns.internet.dk (8.9.2/8.9.3) with UUCP id XAA61773 for freebsd-isp@FreeBSD.ORG; Thu, 17 Feb 2000 23:00:44 +0100 (CET) (envelope-from leifn@neland.dk) Received: from gina (gina.neland.dk [192.168.0.14]) by arnold.neland.dk (8.9.3/8.9.3) with SMTP id WAA49902 for ; Thu, 17 Feb 2000 22:55:21 +0100 (CET) (envelope-from leifn@neland.dk) Message-ID: <012501bf7991$bda83700$0e00a8c0@neland.dk> Reply-To: "Leif Neland" From: "Leif Neland" To: Subject: "pop3 server has not responded in 60 seconds. Retry / abort?" Date: Thu, 17 Feb 2000 22:49:07 +0100 MIME-Version: 1.0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2919.6600 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2919.6600 Sender: owner-freebsd-isp@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Some users have problems receiving large emails.=20 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.=20 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,=20 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message