Networking author Howard C. Berkowitz provides tips on avoiding and fixing data link network failures in Part 3 of his series.

The Data Link Layer is one of my favorite layers of the OSI Model. Like a father who loves ALL of his children equally, but in different ways, I also love the other layers, but Layer 2 will always ...

Data Link Layer The data link layer is responsible for transmitting packets of information across the link between hosts. If the link is shared by many hosts (for example, a LAN) this layer also ...

What is a network switch? A network switch is a physical device that operates at the Data Link layer of the Open Systems Interconnection (OSI) model — Layer 2.

The internet is a complex network, and understanding how it works requires breaking it down into layers. In this video, we’ll ...

In networking and communications, the formats, codes and procedures for transmitting a unit of data (frame, packet) from one node to another. Known as a "layer 2 protocol," the data link protocol ...

Layer 2 is the Data link layer, which is not commonly discussed. The Network layer, layer 3, includes Internet Protocol (IP), which finds things on the network.

Anyway some datalink layers used by ISPs: Ethernet, PPP, VPLS. It's mostly Ethernet- although cable companies use a different layer 2- Docsis. Wireless ISP might use 802.11 and other wireless L2.

Not only is it important that the underlying electrical and optical connectivity of these components function properly, it's also critical that the data link layer operates within the established ...

The technical name of a frame of data transmitted over the data link layer (layer 2) in a communications network. Ethernet and Token Ring are examples of this layer. Many people neither use the ...