Path: utzoo!utgpu!attcan!uunet!mcvax!cernvax!achille From: achille@cernvax.UUCP (achille) Newsgroups: comp.sys.apollo Subject: Re: More TCP/IP 3.1 Problems Message-ID: <797@cernvax.UUCP> Date: 15 Aug 88 23:26:30 GMT References: <8808122121.AA14779@mailgw.cc.umich.edu> Reply-To: achille@cernvax.UUCP () Organization: CERN European Laboratory for Particle Physics, CH-1211 Geneva, Switzerland Lines: 25 In article <8808122121.AA14779@mailgw.cc.umich.edu> rees@caen.engin.umich.edu (Jim Rees) writes: > > Do multiply gateways work with TCP_BSD 3.1? If one of the gateways > goes down, should the users notice or will they continue to work on the next > available gateway? > >The way it's supposed to work, and it did at one time (haven't tried it >recently), is that if a gateway doesn't work, then that gateway gets >moved to the bottom of the list and the next one is tried. > >I don't think it will dynamically reroute a tcp connection that has already >been established, however. >------- Yes, it does, it happened to me during a telnet connection with TCP 3.0, got hung for some 30 seconds and then restarted. I was just showing TCP/IP to some people and it was the best demo I ever did :-) But be careful, because the fact that your Apollo redirects the connection thru another gateway does not guarantee that the machine on the other side knows about the new route you are using ! This especially true here because we do not use /etc/routed. Achille Petrilli, Cray Operations