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Difference between SCTP and UDP

1. Stream Control Transmission Protocol (SCTP): SCTP is a connection-oriented protocol in computer networks that provides full-duplex association i.e., Transmitting multiple streams of data between two endpoints at the same time that have been established connection in the network. 

2. User Datagram Protocol (UDP): UDP is a Transport Layer protocol. UDP is a part of the Internet Protocol suite, referred to as UDP/IP suite. Unlike TCP, it is an unreliable and connection-less protocol. So, there is no need to establish a connection prior to data transfer. UDP sockets are an example of datagram sockets. 

Difference Between SCTP and UDP:

Parameter SCTP Protocol UDP Protocol
Reachability Check We can have a reachability check-in SCTP. There is no reachability check-in UDP.
Multistreaming SCTP supports Multistreaming. UDP doesn’t support Multistreaming.
Data Transfer Data transfer is more reliable than SCTP. There is no reliable Data transfer in UDP.
Selective ACKs There are selective ACKs in SCTP. There are no selective ACKs in UDP.
Multihoming Multihoming is supported by SCTP. UDP doesn’t support Multihoming.
Connection-oriented SCTP protocol is connection-oriented. UDP protocol is not connection-oriented.
Partial Data Transfer There is Partial Data Transfer in SCTP. There is no Partial Data Transfer in UDP.
Ordered Data Delivery There is ordered data delivery in SCTP. Ordered Data delivery is not supported by UDP.
Flow Control SCTP has efficient flow control. UDP has no efficient flow control.
Congestion Control Congestion control in SCTP. No congestion control in  UDP.
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