Panasonic 15000 - Manual (Page 71)

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List of terms
Nortel Multiservice Switch 7400/15000/20000
Terminology
NN10600-005 7.2S1 Standard
PCR7.2 and up March 2006
Copyright © 2006, Nortel Nortel Confidential
layer
In the OSI reference model, a collection of related network processing
functions that comprise one level of a hierarchy of functions.
LC
1 See link controller (LC) (page 72) .
2 See logical channel (LC) (page 76) .
LCN
See logical channel number.
LCo
See logical connection (LCo) (page 76) .
LD-CELP
See Low-delay code excited linear prediction (LD-CELP) (page 77) .
LDS
See link delay synchronization (LDS) (page 73) .
leaf
Is sometimes used interchangeably with party. However, a leaf more
accurately denotes any single destination point of a point-to-multipoint call.
LEN
See low-entry networking (LEN) node (page 77) .
level
In ATM networking, a level is the position in the PNNI hierarchy at which a
particular node or peer group exists. A level that has a smaller numerical value
implies greater topology aggregation. Conversely, a level that has a larger
numerical value implies less topology aggregation. Smaller numerical values
indicate high levels while larger numerical values indicate lower levels.
LG
See link group (LG) (page 73) .
LGN
See logical group node (LGN) (page 76) .
LGN Horizontal Link Hello protocol
The LGN (logical group node) Horizontal Link Hello protocol is a protocol run
over an SVCC RCC channel to discover and monitor logical links between
neighboring logical group nodes.