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Home > Take Up Code > 164: SCTP vs. TCP vs. UDP
Podcast: Take Up Code
Episode:

164: SCTP vs. TCP vs. UDP
Category: Technology
Duration: 00:08:19
Publish Date: 2017-01-02 00:42:40
Description:

You’ll learn more about the strengths of the SCTP, TCP, and UDP protocols by comparing them. The audio recording has much more detail about the following five questions.

  1. Is the protocol connection oriented? Both SCTP and TCP are but UDP does not establish connections.
  2. Is the data transfer reliable? In a way, this is related to the first question. I already said that UDP is not reliable. And both SCTP and TCP offer reliable data transfer.
  3. Are the data packets ordered? TCP guarantees that a receiver will receive packets in the order they were sent. UDP makes no guarantee at all about order. SCTP lets you choose.
  4. Is the protocol message based? With UDP, you’re sending packets of self-contained information. You have to because there’s no ordering and no connection to relate one message to the next. With TCP, you establish a connection and then just start sending data. SCTP acts more like UDP in this sense because it preserves message boundaries.
  5. Does the protocol support flow control and congestion control? Both SCTP and TCP support flow control and congestion control. UDP does not help with either of these.
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