Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!wuarchive!gem.mps.ohio-state.edu!ginosko!uunet!mcsun!ukc!edcastle!adam From: adam@castle.ed.ac.uk (Adam Hamilton) Newsgroups: comp.dcom.lans Subject: Re: What services does X.25 provide? Keywords: x.25 Message-ID: <486@castle.ed.ac.uk> Date: 25 Sep 89 10:43:16 GMT References: <727@idacom.UUCP> <17683@bellcore.bellcore.com> Reply-To: adam@castle.ed.ac.uk (Adam Hamilton) Organization: Edinburgh University Computing Service Lines: 13 In article <17683@bellcore.bellcore.com> karn@jupiter.bellcore.com (Phil R. Karn) writes: > >Face it, X.25 is a disaster for anything other than remote slow speed >terminal multiplexing. It is not suitable for serious computer >networking. > The UK nearest equivalent to the ARPANET is JANET which links the UK academic sites. It is an X25 network. We run login (X29), FTP, Mail, the News and JTMP (Job Transfer and Management) over it. It works just fine. Throughput through a switch will be several hundred megabytes a day. If two hosts have 64K bits-per-sec links I can easily manage 32K bps throughput in the data transfer phase of FTP. How serious do I have to get?