From mboxrd@z Thu Jan 1 00:00:00 1970 From: clemc@ccc.com (Clem Cole) Date: Thu, 20 Nov 2014 23:46:26 -0600 Subject: [TUHS] 2.10 In-Reply-To: References: Message-ID: On Thu, Nov 20, 2014 at 10:55 PM, Cory Smelosky wrote: > Well, 2.10 has SLIP, ​SLIP means you still need the IP stack ​ (serial-line-ip)​ . It ​ ​just replaces an ethernet driver with a serial port. > but it'd certainly be easier to implement a simple userland tool to talk > to a frontend! ​Actually there was tool that was almost all in userland to support multiple sessions over single serial line between a Macs a UNIX system. My memory is that it used Chesson's multiplexer (mpx) which is part of stock V7 (his is pre-select system call).​ I wish I could remember the name of that program. But I bet it or something like it could be repurposed pretty quickly to talk to a frontend micro. Biggest issue is interrupt overhead on serial ports on the 11. If this is real HW, see you can find a real DEC DH or better yet - an Able DH/DM. DH style interfaces will be a huge difference over DL's or DZs. DZs were pigs on Vaxen and on an 11 a line at 19.2K continuous could kill it. BTW: I thought of another option. It's not telnet or ftp, but if your desire is move files back and forth without having to use a common physical media and sneaker-net, BSD 2x should have the BerkNET code in it. That will run on an serial line - although my previous comment about the type of interface can matter from a performance standpoint. Clem -------------- next part -------------- An HTML attachment was scrubbed... URL: