Path: utzoo!dciem!nrcaer!scs!spl1!laidbak!att!pacbell!ames!pasteur!ucbvax!rsre.mod.UK!LAWS From: LAWS@rsre.mod.UK (John Laws, on UK.MOD.RSRE) Newsgroups: comp.protocols.tcp-ip Subject: Re: Linking LAN's via Public X.25 Message-ID: <04.JUN.1988.15:12:54.LAWS@RSRE> Date: 4 Jun 88 22:12:00 GMT Article-I.D.: RSRE.04.JUN.1988.15:12:54.LAWS Sender: daemon@ucbvax.BERKELEY.EDU Organization: The Internet Lines: 26 >Perhaps another view of IP over X.25 might help. While the original >question was asked about Sun X.25, there are a number of networks within the >ARPA/Internet that use IP over X.25. Yet another view. The RSRE Internet Lab connects to two other European Internet sites (one in Holland and one in Germany) and others internal to the UK running IP over X.25. Quality of service is good and at current traffic levels is much cheaper than international/national leased circuits. The software has been developed to pay attention to the fact that real money is being spent e.g. virtual circuits close if IP traffic stops, and of course accounting and access control are well developed. If national X.25 provision by US carriers is seen as less than adequate, by US users, maybe its because they (the carriers) do not see it as a viable commercial market to make a big investment in given the existing 'free' networks like Arpanet, Milnet, NSFnet etc. YES I DO KNOW that they are not really free - that Government, Academic institutions and companies make payments. But in many cases the users at the keyboard are unaware and uncaring of the costs (judged by many of the remarks in this forum some months ago). John