Which Transport Layer Feature Is Used To Guarantee Session Establishment?

The transport layer is the division of process in the layered architecture and OSI model which is a seven-layer model. The transport layer gives the interface between the top layer for the transmission within and across the network. It can transfer the packets from the source to the destination in the form of nodes.it can also provide the segmentation and again the rearrangements of the packets. The transport layer provides the multiplexing, flow control. The TCP (transmission control protocol) is the three-way handshake which is the main topic of today’s discussion.

What is the TCP 3-way handshake? 

The TCP 3 -way handshake is used in the TP/IP protocol and is responsible for the connection between the server and the client or user. as the name indicate the TCP 3 way is the process that is based on the three steps and it includes both the client and the server for the acknowledgment and the synchronization before the data transmission.

The process is built in a way that the ends help in the initiation, separation, and negotiation of the socket of the TCP at a time. The multiple transmission is held through the TCP in both directions at the same time.

The types of the TCP 3-way handshake 

The three-way is based on the three types of the message which has been transferring during the process which is listed below:

SYN: for the start and the establishment of the connection, the sequence is also determined or sequenced with this message between devices.

ACK: The ACK message is for confirmation from the receiving side that the message is transferred safely to its destination.

SYN-ACK: The SYN is the local device message while the ACK is the message of the packets earlier.

FIN: The FIN is to disable the connection which is established between devices.

 Process of the 3-way handshake

The process starts when the client or user requests communication with the server. The process is based on  the three steps which are described below:

Step 1: connection built

In the beginning, the client has to build a connection with the server. A segment SYN over the network has been sent to the server for connection start. The packet has a random sequence number and the main purpose of the segment is to check whether the server is ready for connection.

Step 2: Respond to the server

The second step is that the server has to inform the client that the request has been received with the help of SYN-ACK. ACK is used for the acknowledgment while the SYN is for the sequence number so that it could be able to start.

Step 3: Client acknowledgment 

The client has received the SYN/ACK segment which is from the server that is ready for the connection. And the sequence forms each side has to be checked by the increment of the one. The server packet is Y so when the client adds one to the sequence number it becomes Y+1.

Which layer of the transport is for the guarantee session establishment?

The transport layer which is used for the guarantee session establishment is the 3-way handshake because in this the communication is established with the whole stable process and it is reliable as well.