YMODEM-g and XMODEM-g Protocols

Autolog supports "turbo-charged" variations of YMODEM batch and XMODEM protocols. YMODEM-g and XMODEM-g protocols are very similar to the regular YMODEM and XMODEM protocols, except that they don't wait for acknowledgments after each packet, only at the end of the transfer. Because individual packets are not acknowledged, there is no provision for retransmitting garbled or lost data. The entire file is either successfully transferred or the transfer fails.

Over clean, noise-free connections, YMODEM-g and XMODEM-g can be much faster than their regular counterparts. However, any noise or glitch can cause the transfer to fail. Any errors will not be detected until the end of the transfer, making YMODEM-g and XMODEM-g very inefficient on any but the cleanest connections.

Use ygtransmit to send a file or batch of files and ygreceive to receive a file or batch of files using YMODEM-g. These commands can be used just like ytransmit and yreceive. Be sure the remote system supports YMODEM-g protocol.

Use xgtransmit to send a file or xgreceive to receive a file using the relatively rare XMODEM-g protocol. These commands can be used like xtransmit and xreceive. Be sure the remote system supports XMODEM-g protocol.