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Glossary

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.

Organizationally Unique Identifier (OUI)

A 24-bit number that is purchased from the IEEE Registration Authority. This identifier uniquely identifies a vendor, manufacturer, or other organization and effectively reserves a block of each possible type of derivative identifier, such as MAC addresses, group addresses, SAP protocol identifiers, etc., for the exclusive use of the assignee.