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station
station ID
SVC
topology
transparent bridge
UME
UNI
UNIX®
VC
VCC
VCI
VPI
An addressable logical and physical attachment in a ring that is capable of
transmitting, receiving, and repeating information. An FDDI station has one
or more PHY entities, one or more MAC entities, and only one SMT entity.
The unique identifier for an FDDI station or concentrator.
Switched virtual connection. An ATM standard signalling protocol that
automatically establishes and releases connections as they are needed.
The physical or logical placement of stations on a network in relation to one
another, such as ring, mesh, star, or bus.
A bridge that allows interconnection of or more LANs so they can
communicate as if they were one LAN. The bridge listens to packets on the
attached LANs and forwards packets from one LAN to another. See also
bridge, IEEE 802.1d.
UNI management entity. The UMI is the code residing in the ATM devices at
each end of a UNI circuit that implements the management interface to the
ATM network.
User-to-network interface. The UNI interconnects an ATM user with an ATM
switch.
A computer operating system, developed by AT&T, that is capable of
multitasking.
Virtual circuit. A connection between end users that has defined end points
and a route but does not have bandwidth dedicated to it. Bandwidth is
allocated on demand by the network as users have traffic to transmit.
Virtual channel connection. Virtual channels in two or more sequential
physical circuits can be concatenated to create an end-to-end connection,
called a VCC. A VCC Is a specific instance of a SVC or PVC. A VCC may
traverse one end-to-end VPC or several sequential VPCs.
Virtual channel identifier. Part of the identifier of a particular virtual circuit in
the ATM fabric.
Virtual path identifier. Part of the identifier of a particular virtual circuit in
the ATM fabric.
O
G
PERATION
LOSSARY
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