omahony@swift.cs.tcd.ie (02/19/91)
In article <m0j6jDU-0003GQC@uts.uni-c.dk>, uniel@UTS.UNI-C.DK (Erik Lawaetz) writes: > Has anybody any experience with X.25 communication from > ISODE on Ultrix, e.g. using "PSI-Access" on a VAX/VMS as > gateway to X.25? > --- I am currently looking at adapting ISODE to run over "DEC X.25 Access for ULTRIX". This software makes a DECNET connection to either a VMS Node running PSI, or a DEC X.25 router using this connection, launches and receives X.25 packets. It looks as though the port will be non-trivial, as the DEC X.25 interface software is not based on sockets - instead, it uses "virtual circuit" data structures that have operations that are somewhat similar to those on sockets. This means delving into the workings of files such as ./tsap/tp0ts.c which has a higher concentration of #ifdef'ed code than I have ever come across before. If there is anybody out there that has either design documentation for ISODE tsap directory, or experience in doing something similar, I'd like to hear from them. Better still, if anybody has already done this - please let me know. Donal O'Mahony Computer Science Department Trinity College Dublin, Ireland