home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Software Vault: The Gold Collection
/
Software Vault - The Gold Collection (American Databankers) (1993).ISO
/
cdr18
/
qhost211.zip
/
PROTOCOL.HLP
< prev
next >
Wrap
Text File
|
1993-05-08
|
2KB
|
38 lines
Protocol selections:
[X]modem: Sends files in blocks of 128 characters at a time.
When the receiving computer is satisfied that one block
has arrived intact, it signals so and waits for the
next block. Error checking is a Checksum or a more
sophisticated Cyclic Redundancy Check.
[1]k-Xmodem: This is a small variation of Xmodem that uses blocks
that are 1024 bytes in size.
[G]-1k-Xmodem: This is a variation of 1k-Xmodem that is meant for
error free channels such as error correcting modems or
null modem cable links between two computers. It sends
blocks one after another without waiting for
acknowledgment from the receiver.
[Y]modem: This protocol is a variation of Xmodem which keeps
the correct name, size, and date of the files being
sent. It may use 128 or 1024 byte blocks.
Ymod[E]-G: This protocol is a variation of Ymodem, which requires
an error free channel such as error correcting modems
or null modem cables. It sends one block after another
without waiting for acknowledgment from the receiver.
[S]ealink: This is an advanced version of Xmodem that is 15 to 25
percent faster than regular Xmodem. Sealink passes a
file's name, size, and date when transferring.
[Z]modem: This advanced protocol is very fast and reliable, and
offers many features. It keeps the exact file sizes and
dates, and can resume an interrupted transfer at a
later time. The latter is known as Crash Recovery. It
is recommended that Zmodem is used for all data
transmissions as it is the fastest and most reliable
protocol offered by Telix.