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CX11x, CX31x, CX710 (Earlier Than V6.03), and CX91x Series Switch Modules V100R001C10 Configuration Guide 13

The documents describe the configuration of various services supported by the CX11x&CX31x&CX91x series switch modules The description covers configuration examples and function configurations.

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IPv4 Overview

IPv4 Overview

This section describes the definition and purpose of IPv4.


Internet Protocol Version 4 (IPv4) is the core protocol in the TCP/IP protocol suite. IPv4 works at the network layer in the TCP/IP model. This layer corresponds to the network layer in the Open System Interconnection Reference Model (OSI RM). The network layer provides connectionless data transmission. Each IP datagram is transmitted independently.


IPv4 is used on the network layer between the data link layer and the transport layer. IPv4 shields the differences at the link layer and provides a uniform format for the data packets transmitted at the transport layer.

Updated: 2019-12-13

Document ID: EDOC1000041694

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