In summary, TFTP servers are a straightforward and efficient file transfer solution that has stood the test of time. While they may not be the best choice for all applications, they still have a place in modern networking, particularly in scenarios where simplicity and speed are essential.
TFTP (Trivial File Transfer Protocol) is a simple UDP-based protocol for transferring files, commonly used for network booting, firmware updates, and transferring small config files. It lacks authentication and encryption.
Cisco, Juniper, Arista, Ubiquiti, and HP all use TFTP to upgrade firmware on switches, routers, and firewalls.
Because of its simplicity, TFTP is still widely used today in , firmware upgrades , PXE (Preboot Execution Environment) , and configuration backup for network devices (routers, switches, VoIP phones).
5 operation codes (opcodes):