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Once data is routed through the network and delivered to a specific host, it must be delivered to the correct user or process. As the data moves up or down the layers of TCP/IP, a mechanism is needed to deliver data to the correct protocols in each layer. The system must be able to combine data from many applications into a few transport protocols, and from the transport protocols into the internet Protocol. Combining many sources of data into a single data stream is called multiplexing. Data arriving from the network must be demultiplexed, divided for delivery to multiple processes. To accomplish this, IP uses protocol numbers to identify transport protocols, and the transport protocols use port numbers to identify applications.
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How does the TCP handle the issue of multiplexing?
tcp at the transport layer handles multiplexing with address called port number of service access points (SAP).For every service that is using TCP at one particular machine is assigned a port nuber or SAP. When the datagram is being sent the TCP software appends the SAP or the port number of the source and the destination service. At the reciving end the TCP software again extracts the destination SAP and forwards the datagram to the appropiate service. Now if there are multiple source services and multilple destination services each with a unique ID, the TCP software can distinguish between different datagram belonging to different services. Thus with the use of SAP or port numbers TCP can handle multiplexing....
What are the two basic port numbers?
ephemeral port numbers and well known port numbers
What are the two basic types of port numbers?
Ephemeral port numbers and well-known port numbers.
Which of the three multiplexing techniques arre used to combine digital signals?
Frequency-division multiplexing, wavelength-division multiplexing, and time-division multiplexing.
What is the upward limit on TCP port numbers?
TCP port numbers, as well as UDP port numbers, are 2-byte numbers, therefore, the range is from 0 to 65535.
Which of the three multiplexing techniques are used to combine analog signals?
Frequency-division multiplexing and wavelength-division multiplexing
What is the Block diagram for time division multiplexing?
What is multiplexing and its diagram
What are the 3 types of port numbers and what are their ranges of port numbers?
There are ...1.dynamic port2.registred port3.wall know port.
What is the role of the Ethernet port on a PC?
The role of the ethernet port on a PC is to allow internet to be connected. Without an ethernet port, there is no place for the computer to be connected to the internet.
Application of multiplexing in data communication?
application of multiplexing in data communication
Why amplitude division multiplexing is not used?
what is function of amplitude division multiplexing
Which multiplexing technique transmits digital signal?
In analog transmission, signals are commonly multiplexed using frequency-division multiplexing (FDM)
