Transport Layer Protocols

Transport Layer Protocol uses different protocol for the better communication between two ends uses of protocol may differ from specifications. Below mention are some protocols used in Transport Layer

1. Transmission Control Protocol(TCP)

• TCP is connection-oriented Protocol.
• TCP is reliable protocol.
• As TCP is connection-oriented protocol, so first the connection is established between two ends and then data is transferred and then the connection is terminated after all data being sent.

2. User Datagram Protocol (UDP)

• UDP is not reliable protocol
• The protocol UDP is connectionless.
• When speed and size are more important than security and dependability, this kind of protocol is employed.
• The data from the higher layer is supplemented with transport-level addresses, checksum error control, and length information by UDP, an end-to-end transport level protocol.
• A user datagram is the packet that the UDP protocol generates.

3. Stream Control Transmission Protocol (SCTP)

• An IP Transport Layer protocol is called Stream Control Transmission Protocol (SCTP).
• Many Internet applications use SCTP to perform transport layer duties, similar to User Datagram Protocol (UDP) and Transmission Control Protocol (TCP).
• On top of a connectionless packet network like IP, SCTP is a dependable transport protocol that facilitates data transfer over the network in scenarios involving one or more IP addresses.

The transport layer, or layer 4 of the OSI model, controls network traffic between hosts and end systems to guarantee full data flows. Data volume, destination, and rate are all controlled by transport-layer protocols including TCP, UDP, DCCP, and SCTP.

The transport layer is positioned between the network and session layers in the OSI paradigm. The data packets must be taken and sent to the appropriate machine by the network layer. After that, the transport layer receives the packets, sorts them, and looks for faults. Subsequently, it directs them to the session layer of the appropriate computer program. Now, the properly structured packets are used by the session layer to hold the data for the application.