Path: utzoo!utgpu!water!watmath!clyde!bellcore!faline!thumper!ulysses!andante!princeton!udel!rochester!bbn!uwmcsd1!ig!agate!ucbvax!GAUSS.ECE.CMU.EDU!sirbu From: sirbu@GAUSS.ECE.CMU.EDU.UUCP Newsgroups: comp.protocols.misc Subject: Re: About Protocols for File Transfer Message-ID: <8806031410.AA26679@gauss.ece.cmu.edu> Date: 3 Jun 88 14:10:54 GMT Sender: daemon@ucbvax.BERKELEY.EDU Organization: The Internet Lines: 14 Posted: Fri Jun 3 10:10:54 1988 The notion of a protocol which is "as fast" as non-protocol transfer is certainly interesting from a theoretical point of view. However, from a practical point of view, typical overhead in a protocol like HDLC is less than 10% (at least for file transfers where frames are near maximum size). Moreover, there are many silicon implementations of the HDLC standard. I doubt that there will be a great deal of commercial interest in a protocol which promises to offer--at most-- a 10% improvement in performance, lacks acceptance as a standard, and would require a substantial front end investment in chip to design in order to be provided at as low a cost (or as low a burden on the main CPU) as HDLC. Marvin Sirbu CMU