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Which Layer is Responsible for Reliable Connection?


 

Which Layer is Responsible for Reliable Connection? 


- The transport layer guarantees a reliable end-to-end connection




- The transport layer provides a total end-to-end solution for reliable communications. TCP/IP relies on the transport layer to effectively control communications between two hosts. 

- When an IP communication session must begin or end, the transport layer is used to build this connection. The elements of the transport layer and how it functions within TCP/IP are discussed in more detail later in the chapter. The transport layer is the layer at which TCP/IP ports listen. 

- For instance, the standard port which HTTP listens on is TCP Port 80, although HTTP could really run on any TCP port; this is the standard. Again, there is no difference between TCP port 80, 1000, or 50000; any protocol can run on it. Standardized port numbers are used to help ease the need to negotiate the port number for well-known applications.







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