List of Acronyms
324 7705 SAR OS System Management Guide
NLOS non-line-of-sight
NLPID network level protocol identifier
NLRI network layer reachability information
NNHOP next next-hop
NNI network-to-network interface
Node B similar to BTS but used in 3G networks — term is used in
UMTS (3G systems) while BTS is used in GSM (2G systems)
NSAP network service access point
NSP native service processing
NSSA not-so-stubby area
NTP network time protocol
NTR network timing reference
OADM optical add/drop multiplexer
OAM operations, administration, and maintenance
OAMPDU OAM protocol data units
OC3 optical carrier level 3
OIF outgoing interface
OLT optical line termination
ONT optical network terminal
OOB out-of-band
OPX off premises extension
ORF outbound route filtering
OS operating system
OSI Open Systems Interconnection (reference model)
OSINLCP OSI Network Layer Control Protocol
OSPF open shortest path first
Table 50: Acronyms (Continued)
Acronym Expansion
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