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Transfer times to PC hard disk and floppy disk destinations are
shown.
C-Kermit 4.2(030) used server mode and file compression, sending to
Pro-YAM 15.52 using 0 delay and a "get phones.t" command.
Crosstalk XVI 3.6 used XMODEM 8 bit checksum (CRC not available) and
an "ESC rx phones.t" command. The Crosstalk time does nnnnooootttt include
the time needed to enter the extra commands not needed by Kermit and
ZMODEM.
Professional-YAM used ZMODEM AutoDownload. ZMODEM times included a
security challenge to the sending program.
Chapter 16 Rev 10-27-87 Typeset 10-27-87 37
Chapter 16 ZMODEM Protocol 38
TTTTAAAABBBBLLLLEEEE 4444.... File Transfer Speeds
__________________________________________________________________________________
| Prot file bytes bps ch/sec Notes |
_|__________________________________________________________________________________________________________________________________________________________________|_
|X jancol.c 18237 2400 53 Tymnet PTL 5/3/87 |
|X source.xxx 6143 2400 56 Source/Telenet PTL 5/29/87|
|X jancol.c 18237 2400 64 Tymnet PTL |
|B jancol.c 18237 1200 87 DataPac (604-687-7144) |
|XN tsrmaker.arc 25088 1200 94 GEnie PTL |
|B/ovth emaibm.arc 51200 1200 101 CIS PTL MNP |
|UUCP 74 files, each >7000 1200 102 Average, Various callers |
|ZM jancol.c 18237 1200 112 DataPac (604-687-7144) |
|X/ovth emaibm.arc 51200 1200 114 CIS PTL MNP |
|ZM emaibm.arc 51200 1200 114 CIS PTL MNP |
|B jancol.c 18237 2400 124 Tymnet PTL |
|B YI0515.87 9081 2400 157 CIS PTL node 5/29/87 |
|SK source.xxx 6143 2400 170 Source/Telenet PTL 5/29/87|
|ZM jancol.c 18237 2400 221 Tymnet PTL upl/dl |
|B/ovth destro.gif 33613 2400 223 CIS/PTL LEVEL 5 9-12-87 |
|ZM jancol.c 18237 2400 224 Tymnet PTL |
|ZM jancol.c 18237 2400 226/218 TeleGodzilla upl |
|ZM jancol.c 18237 2400 226 Tymnet PTL 5/3/87 |
|ZM zmodem.ov 35855 2400 227 CIS PTL node |
|C jancol.c 18237 2400 229 Tymnet PTL 5/3/87 |
|ZM jancol.c 18237 2400 229/221 TeleGodzilla |
|ZM zmodem.ov 35855 2400 229 CIS PTL node upl |
|ZM jancol.c 18237 2400 232 CIS PTL node |
|ZM mbox 473104 9600 948/942 TeleGodzilla upl |
|ZM zmodem.arc 318826 14k 1357/1345 TeleGodzilla |
|ZM mbox 473104 14k 1367/1356 TeleGodzilla upl |
|ZM c2.doc 218823 38k 3473 Xenix 386 Toolkit upl |
|ZM mbox 511893 38k 3860 386 Xenix 2.2 Beta # |
|ZM c.doc 218823 57k 5611 ** |
_|_________________________________________________________________________________|
Times are for downloads unless noted. Where two speeds are noted,
the faster speed is reported by the receiver because its transfer
time calculation excludes the security check and transaction log
file processing. The TeleGodzilla computer is a 4.77 mHz IBM PC
with a 10 MB hard disk. The 386 computer uses an Intel motherboard
at 18 mHz 1ws. The AT Clone (QIC) runs at 8 mHz 0ws.
Abbreviations:
B Compuserve B Protocol
B/ovth CIS B with Omen Technology OverThruster(TM)
C Capture DC2/DC4 (no protocol)
K Kermit
MNP Microcom MNP error correcting SX/1200 modem
PTL Portland Oregon network node
SK Sliding Window Kermit (SuperKermit) w=15
X XMODEM
Chapter 16 Rev 10-27-87 Typeset 10-27-87 38
Chapter 16 ZMODEM Protocol 39
XN XMODEM protocol implemented in network modes
X/ovth XMODEM, Omen Technology OverThruster(TM)
ZM ZMODEM
Tk Xenix 386 Toolkit, rz compiled -M3, dumb serial port
** AT Clone ramdisk to 386 ramdisk, or either ramdisk to nul