Transfer Mode (MODE) - KB Article #1481Related Articles --
This command changes the transfer mode. The argument is a single Telnet character code specifying the data transfer modes described in the Section on Transmission Modes.
The following codes are assigned for transfer modes:
S - Stream
B - Block
C - Compressed
Z - Deflate
The default transfer mode is Stream. Mode Z (commonly referred to as "on-the-fly" compression) is defined in an IETF draft.