Differentiated services describes a field in the ipv4 packet header that contains an 8-bit binary value used to determine the priority of each packet.
Application data, including usage and source/destination addresses, is contained in an Internet Protocol version 4 (IPv4) packet header. 20 bytes of data make up an IPv4 packet header, which is typically 32 bits long.
A packet is a network communication data unit with fixed or variable lengths. The header, body, and trailer are the three parts that make up a single packet.
A 20-byte header contains almost 13 multipurpose fields that each hold a specific piece of related object information, such as the application, data type, and source and destination addresses. The following are thorough descriptions of each header field:
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