messages.
Network Time Protocol
Network time protocol is an easy, accurate, and automatic method to get and synchronize
date/time.
nm
Nanometer (10
-9
meters)
NMA
Network Monitoring and Analysis
NMON
Not Monitored (provisioning state)
No Request State
This is the routine-operation quiet state in which no external command activities are occurring.
Node
A network element in a ring or, more generally, in any type of network. In a network element
supporting interfaces to more than one ring, node refers to an interface that is in a particular
ring. Node is also defined as all equipment that is controlled by one system controller. A node
is not always directly manageable by a management system.
Non-Revertive Switching
In non-revertive switching, an active and standby line exist on the network. When a protection
switch occurs, the standby line is selected to support traffic, thereby becoming the active line.
The original active line then becomes the standby line. This status remains in effect even when
the fault clears. That is, there is no automatic switch back to the original status.
Non-Volatile Memory (NVM)
Memory that retains its stored data after power has been removed. An example of NVM would
be a hard disk.
Not Monitored (NMON)
A provisioning state for equipment that is not monitored or alarmed.
NRZ
Nonreturn to Zero
NSA
Not Service Affecting
NSAP Address
Network Service Access Point Address (used in the OSI network layer 3)
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365-372-333 R2.1
Issue 4, June 2005
Lucent Technologies
G L O S S A R Y
G L - 1 7
