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What are the differences between TCP vs. UDP?

April 26, 2017differences TCP UDP vs

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What are the differences between TCP vs. UDP?

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TCP is a transport layer (Layer 4) protocol that incorporates the acknowledgement of received packets and the retransmission of lost packets. This adds latency to the end-to-end communication, but insures the integrity of the transaction. UDP does not provide for either packet acknowledgement or retransmission within the transaction layer. The application can make provision for verification and retransmission. UDP, while less reliable, is faster. UDP is used by videoconferencing in many cases to transmit audio or video data were retransmission is not wanted and speed in the objective. NOTE: Some Firewalls have a UDP default timeout. On the Cisco PIX Firewall, for example, if the UDP timeout is not changed then the call will drop in exactly 2 minutes and the Vidyo client(s) would have to reconnect. You may need to change the UDP Timeout from Default (i.e. 0:02:00 2 minutes) to something larger (i.e.