| Feature | Internal Mechanism | |---------|--------------------| | | Separate threads for sending, ACK processing, disk I/O, encryption. | | Asynchronous I/O | Overlapped reads/writes to keep the UDP pipe full. | | Disk read-ahead | Pre-fetches next file blocks into memory. | | Delta transfer | Compares checksums of local vs remote file; sends only changed blocks (rsync-like). | | Bandwidth throttling | Token bucket implemented inside the send loop. |
FileCatalyst includes several internal modules designed to enhance efficiency beyond mere speed. filecatalyst internal
FileCatalyst follows a client-server model but can also operate in agent-based or peer-to-peer modes. The core internal components are: | | Delta transfer | Compares checksums of
If UDP is strictly blocked by a firewall (rare, but happens in high-security environments), FileCatalyst can be configured to tunnel the data stream over the TCP control connection. While this negates the speed advantages of UDP, it ensures the file arrives without manual firewall intervention. FileCatalyst follows a client-server model but can also