Matching up with all the layers of the DoD Model, the Network Layer is equivalent to the Internet Layer in the OSI Model.
Learning about the Internet and the Network Layer in brief to understand the semantics of the above statement…
The objectives of this particular layer are to ship the packets from source to the destination across several networks. If the systems are connected via similar link or network then there is no need for a network layer. It acts as network controller as it routes the signal to distinct channels to the other side.
It segregates the outgoing messages into the packets and integrates the incoming packets into high-level messages.
1. It makes an interpretation of sensible network address into a physical address. Worried about circuit, message or packets exchanging.
2. Gateways and Routers work in the network layer. A component is given by Network Layer to directing the packets to a definite end.
3. Connection administrations are given including network layer stream control, network layer error control and packet sequence control.
4. Breaks large packets into small packets.
It is been the combination of the protocols, a specification in the Internet Protocol Suite and internetworking methods which are been assigned for the datagrams shipping from the source through network boundaries to the terminal host with the assigned IP address by the Internal Protocol. It is a conceptual method which interwoven the network for a connectivity of the networks via a gateway.
Web layer conventions utilize IP-based datagrams. The internet layer does exclude the conventions that characterize correspondence between nearby (on-connect) arrange hubs which satisfy the purpose behind keeping up interface states between the local hubs, for example, the local network topology, and that more often than not utilize conventions that depend on the confining of packets particular to the link types. Such protocols have a place with the link layer.
Thus, it was how they were equivalent...