
Using Out-of-Band Access to Transfer Files
114088 Rev. A
B-7
Filenames
The conventions for the treatment of filenames by the YMODEM protocol are
• The source router or the remote workstation sends files with path names
stripped and limited to eight characters plus a three-character extension. The
router or workstation converts all filename characters to lower case,
and all “:” characters to “/” characters.
• The target router or workstation stores received files under their transmitted
names. However, YMODEM converts / characters in the received filename
back into : characters. YMODEM also translates all uppercase characters into
lowercase, and eliminates any trailing dots in the filename.
• If you want to specify multiple filenames in a single
xmodem
command (that
is, a YMODEM batch file transfer operation), insert a space after every
filename except for the last name you specify in the command line. You can
also use wildcards in a filename (for example,
*.bat
).
For More Information
The following book provides additional information about
xmodem
protocols:
Forsberg, Charles. Ed.
XMODEM/YMODEM Protocol Reference
.
Implementation Notes
This section provides implementation notes on
•How
xmodem
handles files and checks for errors in files
•How
xmodem
responds when you cancel a file transfer operation
• How to manage modem hardware incompatibilities
• How to view
xmodem
log events
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