TCP/UDP Simulator
Compare the reliability of TCP against the speed of UDP in real-time.
TCP vs UDP Visualizer
Transmission Control Protocol (TCP)Reliable, ordered, and error-checked delivery of a stream of octets. Uses a 3-way handshake to establish connection.
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Connection State: CLOSED
PROTOCOL DETAILS
TCP (Transmission Control Protocol)
A connection-oriented protocol that prioritizes reliability. It ensures all data arrives in order and without errors. If a packet is lost, it is retransmitted.
- 3-Way Handshake: SYN → SYN-ACK → ACK establishes a session before data transfer.
- Reliability: Guarantees delivery via Acknowledgments (ACKs).
- Ordering: Numbered packets ensure data is reconstructed correctly.
VS
UDP (User Datagram Protocol)
A connectionless protocol that prioritizes speed. It sends data without verifying if the receiver is ready or if data arrives.
- Fire & Forget: No handshake, just streams data immediately.
- Speed: Lower latency because there is no overhead for error checking or ordering.
- Use Cases: Video streaming, gaming, VoIP where real-time is more important than perfect accuracy.