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LED
Light Emitting Diode: A small stack of lights to indicate link,
duplex or other options.
LFPT
Link Fault Pass-Through: LFPT can be enabled via iView² or
through the console port.
LOF
Loss Of Frame: An error condition where the receiver/decoder
misses detection of the framing signal.
LOS
Loss Of Signal: An error condition where the receiving line
interface unit does not detect a signal.
MDI/MDIX
Media-Dependent Interface/ Media-Dependent Interface
Crossover. The ability of an Ethernet port to automatically detect
and configure its cabling connections to accommodate crossover
or non-crossover wiring, depending on its link partner and cabling.
MIB
Management Information Base: A database of objects that can be
monitored by a network management system. Both SNMP and
RMON use standardized MIB formats that allow any SNMP and
RMON tools to monitor any device defined by a MIB.
MSA
Multi-Source Agreement (SFP): The standard an SFP must meet to
be compatible in network devices.
OOS
Out-Of-Service, OOS is used by the CRAFT personnel to turn OFF
the alarm reporting so they can service the line without causing
alarm TRAPS to be sent to the NOC Center. The LEDs display a
line status but do not report any line related alarms back to the
NOC. A card removal or insertion is still reported, but a PORT
up/down or changes to its configuration are not.
POP
Point(s) Of Presence: The demarcation point where carrier owned
equipment is located at the customer site.
RAI
Remote Alarm Indication: Status information received from the
line indicating there is an alarm condition at the far end of the
transport.
SFP
Small Form-Factor Pluggable: An industry standard optical
pluggable module.
SNMP
Simple Network Management Protocol: A set of protocols for
managing complex networks over a standards-based IP network.