Skip to main content


Technology evolves at a rapid-fire pace. That’s why we’ve built an easy-to-use glossary to help you better understand the terms, technologies and trends that impact your business.

Logical Link Control (LLC)

A protocol defined in the IEEE 802.2 standard for data-link-level transmission control. It is the upper sublayer of the IEEE layer 2 (OSI) protocol that complements the MAC protocol. LLC is independent of any specific LAN technology.