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Glossary
Glossary-4 PortMaster Configuration Guide
baud
The number of discrete signal events per second occurring on a communications channel.
Although not technically accurate, baud is commonly used to mean bit rate.
B channel
Bearer channel. A 64Kbps synchronous channel that is part of an ISDN Basic Rate
Interface (BRI).
BGP
Border Gateway Protocol. A routing protocol for exchanging network reachability
information among autonomous systems. A routing device can use this information to
construct a “map” of autonomous system connectivity. Version 4 of this protocol (BGP-4),
which supports classless interdomain routing (CIDR) and route aggregation, is the
predominant routing protocol used to propagate routes between autonomous systems on
the Internet. BGP uses TCP as its transport protocol.
BGP-4
Version 4 of BGP. See also BGP.
BONDING
Bandwidth on Demand Interoperability Group. A method for combining two B channels
into a single 128Kbps channel.
booting
The process in which a device obtains information and begins to process it to attain a state
of normal operation.
BOOTP
Bootstrap Protocol. A protocol based on UDP and IP that enables a booting host to
dynamically configure itself without user supervision. BOOTP provides a way for a host
on a network to acquire its assigned IP address, the IP address of a boot server host, and a
file to load into memory and run.
Bootstrap Protocol
See BOOTP.
Border Gateway Protocol
See BGP.