File Transfer Protocols
- One of the oldest async file transfer protocol
- Xmodem-CRC: uses 1 byte CRC (instead of checksum)
- Xmodem-1K: Xmodem-CRC + 1024 byte long message field
- Uses CRC-32 with continuous ARQ
- Dynamic adjustment of packet size (based on circuit)
- Very flexible, powerful and popular
- Typically uses CRC-24 and 1K size, but adjustable