3com 7600 Benutzerhandbuch

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LOSSARY
7600 Card
A 36-port ATM/Ethernet interface card in the CELLplex 7000 chassis.
Asynchronous
Transfer Mode (ATM)
A transfer method used for LAN and 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
Layer (AAL)
A set of protocols that translate user higher-layer protocols into ATM 
format.
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.
AU ID
Unique number assigned to the 7600 Card. May be found through the 
Administration Console Menus of the LinkSwitch.
backbone
The main segment of a campus network, to which are attached 
department networks, or ribs.
Broadcast and
Unknown Server
(BUS)
The Broadcast and Unknown Server handles data sent by a LEC to the 
broadcast MAC address, all multicast traffic, and initial unicast frames 
which are sent by a LEC before the data direct ATM address has been 
resolved.
broadcasting
A common method of information transmission in which every port on 
the network receives the packet being sent, though only the port with 
the proper address passes it on to the user.
bridge
Device connecting between two networks which filters and forwards 
data between the networks according to their destination address.
abtthgde.book  Page 1  Tuesday, June 23, 1998  10:29 AM