What is the Network Layer, level 4 of OSI (Open Systems Interconnection)?

Map Of Internet 1973


This page is about the protocols that implements Network:

They are all in the layer 4 of the OSI model.

These protocols are implemented by the OS but maybe implemented by an OS Application - See Network - transport layer


Windows Sys info

Example on windows sysinfo will list low network protocol (OSI Layer 4)

Windows Network Protocol Sysinfo

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