19728-1

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The 19728-1 Application Field and Working Principle is a practical guide to the everyday application of the 19728-1 standard, which is a unified international standard for data networking and telecommunications. The standard is used by most private and public networks around the world. This guide is intended to provide an overview of the 19728-1 standard and explain its applications and working principles.

The 19728-1 standard describes the requirements of a Layer 2 network and its associated protocols, such as Ethernet and Token Ring. The standards provide a basis for compatibility between different Layer 2 protocols, such as IEEE 802.3 CSMA/CD and Intel Token Ring. The standards also provide a mechanism for network access control methods and traffic control. It also provides protocols and procedures for error control and data integrity.

The 19728-1 standard defines two distinct types of data link layers - the Logical Link Control (LLC) and the Media Access Control (MAC). The LLC is used for communication between two or more devices on the same network. It is responsible for connectionless and connection-oriented communication, as well as sophisticated error correction. The MAC is used for communication between individual devices on the network. It is responsible for access control, address resolution, and data integrity.

The 19728-1 standard defines the frame format of data frames that are sent and received over the network. Data frames are composed of several parts. The first part is the header, which contains source and destination addresses, a type field, and any control information. The second part is the payload, which contains the actual data to be transmitted. The third part is the trailer, which contains error correction codes.

The 19728-1 standard also defines the connection types used on Layer 2 networks, such as point-to-point, broadcast, multicast, and unicast. Point-to-point connections are used to establish a connection between two devices that are not members of any particular group or network. Broadcast connections are used to send a single message to all devices in a particular network. Multicast connections are used to send a single message to multiple devices in a particular group or network. Unicast connections are used to send a single message to a single device on the network.

The 19728-1 standard also defines the protocols used for network management. These protocols include SNMP (Simple Network Management Protocol), RMON (Remote Monitoring), and NetFlow (Flow Analysis). SNMP is used for network performance monitoring and control. RMON is used to monitor and control network devices. Finally, NetFlow is used to analyze and audit network and application traffic.

The 19728-1 standard is one of the most widely used protocols and standards in the networking world. It provides an industry-wide standard for data networking and telecommunications and is used by most private and public networks. It is a unified and comprehensive set of protocols and procedures that enable the successful deployment and operation of networks with practical applications.

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