Glossary B

An IP routing protocol, defined in RFCs, making it a public protocol. BGP is used mainly to exchange routing information between different companies, including between ISPs and their customers.

In mathematics, a digit or numeral that is part of a number based on the binary numbering system.

In mathematics, a convention for numbering things in which 2 separate numerals are used, namely 0 and 1.

A single binary number, either 0 or 1, as stored by a computer in memory.

Units used to describe the speed at which data is sent over some communication media, as measured by the number of bits sent during a single second.

An Ethernet MAC address that represents all devices on a LAN. Switches flood frames that are sent to the broadcast address.

A set of devices for which a broadcast frame sent by one device will be received by all devices in the same broadcast domain.

(Noun) Storage location inside a switch in which frames can be stored when the switch is waiting for the output port to become available. (Verb) The switch process of storing frames in memory.

Jargon used in this book to describe some information, in binary form, that sits in a computer.

8 consecutive bits as stored on a computer.