Huawei OptiX OSN 550 Configuration Manual page 456

A Glossary and Acronyms
Link Aggregation
Control Protocol
link aggregation group An aggregation that allows one or more links to be aggregated together to form a link
Link Capacity
Adjustment Scheme
LLC
LM
Locked switching
LOF
LOM
Loopback
LOS
Loss Measurement
Lower Threshold
LP
LPT
LSP
LSR
LT
A.13 M
MA
MAC
Maintenance
Association
A-18
A method of bundling a group of physical interfaces together as a logical interface to
increase bandwidth and reliability. For related protocols and standards, refer to IEEE
802.3ad.
aggregation group so that a MAC client can treat the link aggregation group as if it were
a single link.
LCAS in the virtual concatenation source and sink adaptation functions provides a
control mechanism to hitless increase or decrease the capacity of a link to meet the
bandwidth needs of the application. It also provides a means of removing member links
that have experienced failure. The LCAS assumes that in cases of capacity initiation,
increases or decreases, the construction or destruction of the end-to-end path is the
responsibility of the network and element management systems.
Logical Link Control
See Loss Measurement
When the switching condition is satisfied, this function disables the service from being
switched from the working channel to the protection channel. When the service has been
switched, the function enables the service to be restored from the protection channel to
the working channel.
Loss of Frame
Loss of Multiframe
A troubleshooting technique that returns a transmitted signal to its source so that the
signal or message can be analyzed for errors. The loopback can be a inloop or outloop.
Loss of Signal
Loss measurement, a method used to collect counter values applicable for ingress and
egress service frames where the counters maintain a count of transmitted and received
data frames between a pair of MEPs.
A lower performance limit which when exceeded by a performance event counter will
trigger a threshold-crossing event.
Lower Order Path
Link State Pass Through
Label Switched Path
Label Switching Router
Link Trace
See Maintenance Association
Medium Access Control
TThat portion of a Service Instance, preferably all of it or as much as possible, the
connectivity of which is maintained by CFM. It is also a full mesh of Maintenance
Entities.
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Copyright © Huawei Technologies Co., Ltd.
OptiX OSN 550 Multi-Service CPE Optical Transmission
System
Configuration Guide
Issue 02 (2011-06-30)