Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!decwrl!pa.dec.com!shlump.nac.dec.com!delni.enet.dec.com!goldstein From: goldstein@delni.enet.dec.com (Fred R. Goldstein) Newsgroups: comp.protocols.iso Subject: Re: OSI on asynch PC lines revisited Message-ID: <19799@shlump.nac.dec.com> Date: 4 Feb 91 19:28:31 GMT Sender: newsdaemon@shlump.nac.dec.com Distribution: comp Organization: Digital Equipment Corp., Littleton MA USA Lines: 16 In article , mskuhn@faui09.informatik.uni-erlangen.de (Markus Kuhn) writes... >Some days ago, I asked here about possibitilies for >OSI connections on asynchronous/start-stop RS-232 lines. Check the addendum to ISO3309 (HDLC Frame Format). It specifies a new asynchronous flavor of HDLC. (It's also spec'd for PPP.) Async HDLC uses a flag value, byte stuffing for transparency, and also frogs one bit of "control" values (preceded by an escape) as required by some devices. I don't know if it is IS yet or still DIS. --- Fred R. Goldstein Digital Equipment Corp., Littleton MA goldstein@delni.enet.dec.com voice: +1 508 486 7388 Do you think anyone else on the planet would share my opinions, let alone a multi-billion dollar corporation?