Path: utzoo!utgpu!watmath!att!chinet!les From: les@chinet.chi.il.us (Leslie Mikesell) Newsgroups: comp.mail.uucp Subject: Re: New UUCP Protocol (was: Re: Zmodem added to UUCP) Message-ID: <9757@chinet.chi.il.us> Date: 6 Oct 89 18:49:18 GMT References: <1024@faatcrl.UUCP> <710@lakart.UUCP> Reply-To: les@chinet.chi.il.us (Leslie Mikesell) Organization: Chinet - Public Access Unix Lines: 19 In article <710@lakart.UUCP> dg@lakart.UUCP (David Goodenough) writes: >> The 'g' protocol is a bit outdated. But it's not as bad as one might think. >Now, let's see. 2400 BPS * 64 data characters per block / 70 actual characters >means you can crank along at about 219 CPS, or 91.4 % of available [...] >Then if you go to 1024 byte packets ...... >2400 * 1024 / 1030 == 238 CPS, If you are going to calculate the best case numbers for a transfer, (i.e. no errors) you should also look at the worst case (i.e. the maximum errors tolerable before the protocol drops the line). It is going to take a lot longer to retransmit a bad 1K packet. After all, the ability to detect and correct errors is the reason that packets are used in the first place. Les Mikesell