Security and networking platforms for large enterprises and data centers are rapidly evolving in sophistication and performance. In the security space, simple packet-filtering firewalls are evolving ...

I like to think of the transport layer as the layer of the OSI Model that enables more interesting traffic. While we network engineers may love a lot of the simpler uses of the IP protocol and ...

Layers 7 through 4 are geared more to the application than the lower layers, which are designed to move packets from one place to another no matter what they contain. This top layer defines the ...

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 IT network. Often, IT system administrators are not fully familiar ...

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 ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. What is a network protocol? Most textbook writers state something like this: A network protocol ...

Do you remember when we used multi-protocol routing for IPX, AppleTalk, and TCP/IP running on the same network? In the 1980s and early 1990s many enterprises had multiple protocols running on the ...

“This is not an easy subject to talk about. There are so many protocols, and terms have evolved—even the way the word ‘Ethernet’ has been used,” states John Ditter, input/output product specialist ...