The purpose of the network layer is to help route messages between different local networks. Central to this layer is the concept of exclusive network addresses, where every terminal connected to the ...

The TCP/IP protocol layers are what hide the details of your network connection from the browser. Figure 1 shows the different layers and the services they provide.

TCP/IP data transfer The data transfer in a TCP/IP network is usually block-based. From a programmer’s point of view, sending data means issuing a series of “send data block” requests.

First, let’s review the idea of the layers as they are used today. The original model published in the early 1980s was the OSI model and it had seven layers. However, today, most discussions refer to ...

Strengthening the different layers of IT networks Getting started on designing a network is a task of formidable proportions, but all the more so if you are looking to build a secure network.

Ethernet is a layer 2 data link protocol that is widely used with the TCP/IP protocol, which resides at layers 3 and 4. To understand network communications, it is essential to learn about the ...

The current IP address scheme of 32-bit words is fast becoming inadequate. It would appear that 2 32 = 4 294 967 296 combinations of addresses should be enough for everybody, but in practice this is ...