Nortel 15000 Terminology page 71

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
2 See
LCN
See logical channel number.
LCo
See logical connection (LCo) (page
LD-CELP
See Low-delay code excited linear prediction (LD-CELP) (page
LDS
See link delay synchronization (LDS) (page
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
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
LGN
See logical group node (LGN) (page
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.
Copyright © 2006, Nortel
- 71 -
List of terms
link controller (LC) (page
logical channel (LC) (page
73).
Nortel Multiservice Switch 7400/15000/20000
Terminology
NN10600-005 7.2S1 Standard
PCR7.2 and up March 2006
72).
76).
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77).
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