Glossary M
Centillion 1200N ATM Switch User Manual B-45
NTP 297-8103-903
MCLR
Maximum Cell Loss Ratio: This is the maximum ratio of the number of cells that
do not make it across the link or node to the total number of cells arriving at the
link or node.
MCR
Minimum Cell Rate: An ABR service traffic descriptor, in cells/sec, that is the rate
at which the source is always allowed to send.
MCTD
Maximum Cell Transfer Delay: This is the sum of the fixed delay component across
the link or node and MCDV.
Metasignaling
ATM Layer Management (LM) process that manages different types of signaling
and possibly semipermanent virtual channels (VCs), including the assignment,
removal and checking of VCs.
Metasignaling VCs
The standardized VCs that convey metasignaling information across a User-
Network Interface (UNI).
MIB
Management Information Base: A definition of management items for some
network component that can be accessed by a network manager. A MIB includes
the names of objects it contains and the type of information retained.
MIB Attribute
A single piece of configuration, management, or statistical information which
pertains to a specific part of the PNNI protocol operation.
MIB Instance
An incarnation of a MIB object that applies to a specific part, piece, or aspect of
the PNNI protocol's operation.
MIB Object
A collection of attributes that can be used to configure, manage, or analyze an
aspect of the PNNI protocol's operation.