3Com CoreBuilder 7000 Management Manual page 494

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494
LOSSARY
Asynchronous Transfer Mode. A transfer method used for LAN and
ATM
WAN. ATM carries voice, video, and data at speeds up to 2.2 Gbps
and can integrate geographically distant disparate networks. Also called
cell relay.
ATM Adaptation A set of protocols that translate user traffic from higher-layer protocols
Layer (AAL) into ATM format.
ATM Address Defined in the UNI Specification as 3 formats, each having 20 bytes in
length including country, area and end-system identifiers.
ATM Forum A consortium of vendors, carriers, and users formed to expedite
industry agreement on ATM interfaces.
ATM Layer The part of the BISDN protocol stack that handles most of the ATM
routing and processing.
ATM Member An alias given to an ATM address on a specific port in order to avoid
typing in the ATM address 20 octets long, proprietary implementation.
B
The main segment of a campus network, to which are attached
backbone
department networks, or ribs.
A logical node that is in a specified peer group, and has at least one
border node
link that crosses the peer group boundary.
A common method of information transmission in which every port on
broadcasting
the network receives the packet being sent, though only the port with
the proper address passes it on to the user.
Device connecting two networks which filters and forwards data
bridge
between the networks according to their destination address.
Broadcast and Unknown Server. A BUS is that set of functions
BUS
implemented in an ATM network that provides LAN-to-LAN
transmission support while a LAN connection is being established.