Webopedia on Google+Webopedia on TwitterWebopedia on FacebookTech Bytes Blog
Main » TERM » D »

DLC

(1) Short for Data Link Control, the second lowest layer in the OSI Reference Model. Every network interface card (NIC) has a DLC address or DLC identifier (DLCI) that uniquely identifies the node on the network. Some network protocols, such as Ethernet and Token-Ring use the DLC addresses exclusively. Other protocols, such as TCP/IP, use a logical address at the Network Layer to identify nodes. Ultimately, however, all network addresses must be translated to DLC addresses. In TCP/IP networks, this translation is performed with the Address Resolution Protocol (ARP).

For networks that conform to the IEEE 802 standards (e.g., Ethernet ), the DLC address is usually called the Media Access Control (MAC) address.

See a breakdown of the seven OSI layers in the Quick Reference section of Webopedia.

(2) Short for digital loop carrier.







TECH RESOURCES FROM OUR PARTNERS
DID YOU KNOW?
What You Don't Read Can Hurt You

Does this sound familiar? An online service promises to help your small business cut costs, increase productivity, make your coffee and walk your... Read More »

Who's Moving Ahead in Cloud Computing?

The future remains, well, cloudy. But either way: Amazon, look out. Microsoft is gaining fast. Read More »

We Can't Give Up on Privacy!

Even new and emerging technologies that can make our lives easier, safer and healthier can jeopardize our privacy. Read More »

QUICK REFERENCE
Webopedia Polls

The trend for the past two years has been for shoppers to spend more online during the holiday season. How do you typically shop for holiday... Read More »

How to Create a Desktop Shortcut to a Website

This Webopedia guide will show you how to create a desktop shortcut to a website using Firefox, Chrome or Internet Explorer (IE). Read More »

Flash Data Storage Vendor Trends

Although it is almost impossible to keep up with the pace of ongoing product releases, here are three recent highlights in the flash data storage... Read More »