networking - Why is SCTP not much used/known -

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I recently checked the book of Richards Stevens and I came to know that apart from TCP and UDP, one-third of the transportation level is standard:

SCTP .

Summary: SCTP is a transport-level protocol that is similar to a message-based UDP, but is reliable such as TCP. Here's one.

Honestly, I have never heard of SCTP. I do not remember reading about it in any networking books or I heard the classes I had. It is to be read that the SCTP says that I am not alone with this lack of knowledge.

Why is the SCP so unknown? Why is not this done? In fact, the SCTP is mostly used in the telecommunications sector.

In fact, Traditionally, the telecommunications switch uses SS7 () to connect different entities in the telecommunications network. For example - with a switch (MSC), the customer data base (HLR) of the telecommunications provider, the customer is also connected (MSc).

Telecommunication Sector High speed and more accessible environment One of these changes is to replace the SD7 protocol with a more elegant, fast and flexible IP-based protocol.

The telecommunications sector is very conservative. The SS7 network has been used for decades. It is very reliable and closed network. This means that a regular user has no access to it.

IP networks, on the contrary, are not open and reliable, and Telecom will not convert to it, if it handles at least load that SS7 handles. This is why the SCTP was developed. It tries:

  • To mimic all the benefits of the SS7 network in decades.
  • To create better connection-oriented protocols with TCP in speed, security and redundancy

Linux's latest release already has SCTP support.


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