Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!cs.utexas.edu!uunet!applix!jim From: jim@applix.com (Jim Morton) Newsgroups: comp.sys.ibm.pc.rt Subject: Re: TCP connections being reset Summary: keepalive needed on AOX/RT 2.2.1 Keywords: tcpip Message-ID: <977@applix.com> Date: 3 Jun 89 19:02:31 GMT References: <304@matrox.UUCP> <618@scifi.UUCP> Distribution: na Organization: APPLiX Inc., Westboro MA Lines: 18 In article <618@scifi.UUCP>, njs@scifi.UUCP (Nicholas J. Simicich) writes: > In article <304@matrox.UUCP> rob@matrox.UUCP (Robert Keller) writes: > >The problem: > > At unpredictable intervals our IBM-RT resets individual telnet > > TCP connections. > Is it possible, perchance, that the machines you are talking to do not > support keepalive? > I think that AIX 2.2.1 requires that the far end support keepalive. > Also, have you called in to get a recent service level? Nick hit it right on the head. We changed out socket based DOS application to support keepalive and bingo - stopped dropping connections! Unfortunately this is mentioned nowhere in the "Interface Program for TCP/IP" manual... Thanks, Nick! -- Jim Morton, APPLiX Inc., Westboro, MA ...uunet!applix!jim jim@applix.com