January 2014 Archive


5874
Connection-Oriented Multiplexing and Demultiplexing
Connection-Oriented Multiplexing and Demultiplexing

To understand TCP demultiplexing, we have to study TCP sockets and TCP connection establishment. One slight difference between a TCP socket and a UDP socket is that a TCP socket is identified by a four-tuple: (source IP address, source port number, destination IP address,

Tags tcp sockets, udp socket, host, segments
3498
Connectionless Transport: UDP
Connectionless Transport: UDP

In this section, we'll examine UDP, how it works, and what it does. We encourage you to refer back to Principles of Network Applications, which contains an overview of the UDP service model, and to Socket Programming with UDP, which discusses socket programming using

Tags socket programming, udp, network layer, application process, end system, tcp, segment
2480
UDP Segment Structure
UDP Segment Structure

The application data shown in Figure 1 occupies the data field of the UDP segment. For instance, for DNS, the data field includes either a query message or a response message. For a streaming audio application, audio samples fill the data field. The UDP header has only four

Tags application data, query message, response message, end system, checksum, udp segment
1755
Principles of Reliable Data Transfer
Principles of Reliable Data Transfer

In this section, we look at the problem of reliable data transfer in a general context. This is appropriate since the problem of implementing reliable data transfer takes place not only at the transport layer, but also at the link layer and the application layer as well. The common

Tags data transfer, transport layer, link layer, application layer, unidirectional data transfer
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