Network testing device based on dynamic connection end-to-end reliable transmission protocol

The invention discloses a network testing device based on a dynamic connection end-to-end reliable transmission protocol, which comprises a source end unit and a destination end unit, and is characterized in that the source end unit comprises a first random code generator, a second random code generator, a connection generator, a connection FIFO, a message sending module and an overtime timer; thedestination end unit comprises a storage module, a message load detection module, a message check module, an error collection module, a finite-state machine FSM and a response message ACK processingmodule. Reliable transmission of end-to-end messages is realized at extremely low hardware cost, communication between nodes, error tracking and positioning are completed independently by hardware without software participation, and the method can be directly applied to functional correctness verification of interconnected chips in a complex network environment; similarities and differences of sending and receiving end pro