MCCUNE@USC-ECLC@sri-unix (09/19/82)
Date: 15 Sep 1982 2204-PDT True VDH running in the VAX is certainly not the way to go. ECUs are somewhat tempermental and a link that uses them isn't considered part of the ARPAnet backbone. AIDS-UNIX is going to be a server host sometime in the next month or so by connecting to the SUMEX C/30 IMP. We're using BBN's HDH protocol over a 9.6 kb leased phone line. This setup requires an RS232C interface board in the C/30, an ACC IF-11/HDH interface board in the VAX, and a UNIX driver for this new interface (being written by BBN). I'm not sure how production versions of the ACC and C/30 interfaces will compare with a pair of ECUS in price, but reliability and throughtput will probably be better. DCA and BBN would like you more, too. Brian McCune Advanced Information & Decision Systems Mt. View, CA -------