Mbone

Short for Multicast Backbone on the Internet, MBone is an extension to the Internet to support IP multicasting — two-way transmission of data between multiple sites. The TCP/IP protocol used by the Internet divides messages into packets and sends each packet independently. Packets can travel different routes to their destination, which means that they can arrive in any order and with sizable delays between the first and last packets. In addition, each recipient of the data requires that separate packets be sent from the source to the destination. This works fine for static information, such as text and graphics, but it doesn’t work well for real-time audio and video.

With Mbone, a single packet can have multiple destinations and isn’t split up until the last possible moment. This means that it can pass through several routers before it needs to be divided to reach its final destinations. This leads to much more efficient transmission and also ensures that packets reach multiple destinations at roughly the same time.

The MBone is an experiment to upgrade the Internet to handle live multimedia messages. MBone servers have special Class D IP addresses. As of March 1997, there were more than 3,000 MBone servers on the Internet.

The Mbone was developed by Steve Deering at Xerox PARC and adopted by the Internet Engineering Task Force (IETF) in March 1992.

Webopedia Staff
Since 1995, more than 100 tech experts and researchers have kept Webopedia’s definitions, articles, and study guides up to date. For more information on current editorial staff, please visit our About page.

Top Articles

The Complete List of 1500+ Common Text Abbreviations & Acronyms

Text Abbreviations reviewed by Web Webster   From A3 to ZZZ we list 1,559 SMS, online chat, and text abbreviations to help you translate and understand...

Windows Operating System History & Versions

The Windows operating system (Windows OS) refers to a family of operating systems developed by Microsoft Corporation. We look at the history of Windows...

How to Create a Website Shortcut on Your Desktop

Website Shortcut on Your Desktop reviewed by Web Webster   This Webopedia guide will show you how to create a website shortcut on your desktop using...

Generations of Computers (1st to 5th)

Reviewed by Web Webster Learn about each of the 5 generations of computers and major technology developments that have led to the computing devices that...

Pipeline

A pipeline is a figurative measurement of client or customer progress through a...

Direct Marketing

Direct marketing is a strategy for selling products and services directly...

Compact Disc

A compact disc (CD) is a polycarbonate disc measuring 120 mm in diameter...