User`s guide

102 DC 900-1406E
BSCTRAN Programmer’s Guide
• When transmitting 3780 executable-image files between VMS or UNIX sites, use
the commands
SEND /TRANS /BINARY and RECEIVE /FIXED /BINARY.
• When transmitting 3780 object-image files between VMS or UNIX sites, use the
commands
SEND /TRANS /BINARY and RECEIVE /BINARY. Be sure the transmission
block size (configuration option 8) is larger than the largest record.
• When sending and/or receiving transparent data, both the local and remote links
must be configured to EBCDIC character set translation (the default) or ASCII
with no parity.
• Refer to the BSC Programmer’s Guide regarding the relationship between the ICP
data translation configuration option and various types of data.
• In general, it is a good idea to set the ICP transmission block size greater than or
equal to the maximum record size + 2. This avoids splitting records and also
increases throughput.
• Be aware of the implications of using the SET /LOCKSTART command. After a link
is enabled with
/LOCKSTART, it remains enabled (even if BSCTRAN terminates)
until the link is disabled with a
SET /STOP command. A link that remains enabled
after termination of a BSCTRAN process (due to a
LOCKSTART) continues receiv-
ing messages into its data queues until it either runs out of buffers, or until a new
BSCTRAN process references (attaches) the same link. As soon as an attach is
made, data is sent to BSCTRAN. Therefore, in order to receive data accumulated
on a link, the first command must be
RECEIVE. Any other command discards
received data that is not relevant to the command. For example, a
SHOW command
discards any data packets that are not responses to its report requests.