Are there IP-addressed networks that use non-UDP/TCP at the transport layer?

Question

Computer networks

Are there IP-addressed networks that use non-UDP/TCP at the transport layer?

Answer 1

SCTP is also a transport protocol, implemented in Linux and Cisco, at first glance it is "better" than TCP and even more so UDP, because it is twenty years newer than both of them, but has not received distribution, it is not in Windows, so TCP / UDP "rule" and you should not avoid them, but learn to "cook properly", and create your own high-level "wrappers" with ready-made algorithms that ensure reliability, security, convenience and speed of development, so that in the future it will be possible to build anything from student "kursach" to a full-fledged instant messaging system, the level of reliability is not inferior to Skype and ICQ.

Answer 2

read here about OSI

Answer 3

Well, there is also ICMP. In theory, it can be used to overtake arbitrary data, here is the implementation: https://github.com/DhavalKapil/icmptunnel
Also GRE. Well, the SCTP mentioned above.

Answer 4

Read about IPX/SPX, Novell's stack. But they wrote that he remained in the wilds of history.