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DCCN

Process-to-process Communication

Process-to-process Communication The transport layer is responsible for process-to-process communication. Port Number : the port number defines one of the processes on this particular host lANA Ranges The lANA (Internet Assigned Number Authority) has divided the port numbers three ranges: well known, registered, and dynamic (or private) Well-known ports: The ports ranging from 0 to […]

Categories
DCCN

Datagram

Datagram Packets in the IPv4 layer are called datagrams. A datagram is a variable-length packet consisting of two parts: header and data. The IPv4 datagram format is below. Version (VER) :  4-bit field defines the version of the IPv4 protocol.  Header length (HLEN) :  This 4-bit field defines the total length of the datagram header […]