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TTDP(Train Topology Discovery Protocol)

              Train topology is dynamic and frequently changes since carriages are constantly added, removed, or replaced. Every time
              the order of the carriages changes, the network must be reconfigured, which is very time-consuming and prone to errors
              if it's done manually.
              TTDP (Train Topology Discovery Protocol) protocol has thus been developed to enhance the efficiency of railway network
              reconfiguration. The protocol enables Ethernet switches to negotiate automatically with other network devices after
              the network topology is changed and will reassign an IP address to the network devices based on the new order of
              the carriages. Therefore IT staff or operators do not need to reconfigure the network devices manually at all. With this
              technology, train operators can vastly improve their operational efficiency and minimize configuration errors.


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