jal@ausmelb.UUCP (03/04/87)
SXT driver: I need to connect two Sys V machines together by a serial line and to multiplex the line between 2 or more programs at either end, i.e., I want to make the one physical line operate like several virtual links. For a while now we've done this through a number of daemons running at both ends, passing data between calling programs, but its inefficient and imposes a large overhead. The advantage of this scheme is that it requires no kernel mods. I'm interested in using the Sys V SXT driver as a serial line multiplexer in much the same way as the Blit (DMD 5620) terminal does it. Does anyone know if it's possible to emulate the Blit protocol from another system (i.e., to make the host system believe that there's a 5620 at the other end of the line, rather than another Sys V) ? Is there any documentation other than the tiny 'sxt.5' entry that describes the protocol ? Does anyone have other alternatives to multiplexing a serial line between user processes ? Please reply directly through email. I'll post a summary of replies to the net. Thanks. -- Joseph Longo, ACS: jal@ausmelb.oz Austec International Ltd, UUCP: ...!seismo!munnari!ausmelb.oz!jal 344 St Kilda Rd, ARPA: jal%ausmelb.oz@SEISMO.CSS.GOV Melbourne, Victoria, 3004. Telex: 38559 AUSTRALIA Phone: +61 3 699 4511 D