An emulator with a CLI in which a customized reliable transmission protocol based on Sliding Window is implemented. The emulator supports a maximum of 256 senders and receivers. Each sender is capable of handling multiple messages toward multiple receivers, and each receiver is capable of handling multiple sender's messages simultaneously.

• Developed an emulator with CLI for customized reliable transmission protocol based on Sliding Window.
• Supported a maximum of 256 senders and receivers, with each sender and receiver capable of handling multiple messages.
• Implemented selective retransmission, cumulative ACK, and a two-way handshake process.
• Created a reliable command parser to handle multiple command inputs simultaneously.
• Designed a frame header with a maximum frame size of 64 bytes.
• Successfully passed tests with corruption rates of up to 60%.

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