Path: utzoo!yunexus!ists!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!usc!apple!fernwood!vixie!asylum!dab From: dab@asylum.SF.CA.US (Dave Bridgham) Newsgroups: comp.protocols.tcp-ip.ibmpc Subject: Re: Analog versus DDS circuits for SLIP Message-ID: <8485@asylum.SF.CA.US> Date: 14 Nov 89 21:18:39 GMT Article-I.D.: asylum.8485 References: <8911131302.aa02452@louie.udel.edu> <8911132103.AA24263@vax.ftp.com> <9289@batcomputer.tn.cornell.edu> Reply-To: dab@asylum.UUCP (Dave Bridgham) Organization: The Asylum; Belmont, CA Lines: 7 The issue isn't analog vs. DDS but async vs. sync. Generally when you get up to DDS speeds (56kbps) you're using synchronous interfaces on the ends. SLIP provides framing. Synchronous interfaces usually will do the framing for you in hardware (either HDLC, SDLC, or BiSync) so SLIP is redundant. David Bridgham