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LOSSARY
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Module Status LED
An LED that indicates the system state of the ATM Interface Module.
multiplexing
A function within a layer that interleaves the information from multiple
connections into one connection.
Network to Network
Interface (NNI)
ITU-T-specified standard interface between nodes, typically ATM
switches within the same network. The network uses E-IISP as its
signaling protocol.
Partial Packet Drop
(PPD)
A procedure for discarding cells related to one user frame to minimize
the impact of congestion.
peer group
A set of logical nodes which are grouped for purposes of creating a
routing hierarchy. PTSEs are exchanged among all members of the
group.
peer group leader
A node which has been elected to perform some of the functions
associated with a logical group node.
physical link
Any connection between two nodes in the lowest level hierarchy.
PNNI Routing Control
Channel
VCCs used for the exchange of PNNI routing protocol messages.
PNNI
Private Network to Network Interface. A routing information protocol
that enables extremely scalable, full function, dynamic multi-vendor
ATM switches to be integrated in the same network.
Port Status LED
LEDs that indicate the status of each ATM port.
Serial Link
The serial link handles the parallel-to-serial conversion for data
transmission over the backplane.
Software State
Indicator LED
LEDs that pinpoint the stage of the software execution at which the
failure occurred.
Software Error LED
LEDs that light up in a binary pattern when a software error occurs.
traffic management
A mechanism for preventing congestion or other traffic flow problems
in a network, by means of performing a set of actions for managing
the traffic.
User Network
Interface (UNI)
The interface, defined as a set of protocols and traffic characteristics,
between the CPE (user) and the ATM network (ATM switch).