User's Manual

258 APCD-LM043-4.0
RIP (Routing Information
Protocol)
A routing protocol in which network routers periodically
broadcast their entire current routing database.
Router A network device that routes IP messages from one physical
port to another based on a table of routes that are manually
entered by a crafts person (static routes) or generated by the
router using a routing protocol such as RIP or OSPF.
Routing The process of finding a path to a destination host through an
IP network.
Sectorization An RF engineering technique whereby co-located transceivers
are connected to separate antennas with different but
geometrically arranged azimuths, for the purpose of optimizing
radio frequency reuse, extending range, and reducing
interference. 120° sectorization is commonly applied in LMS
systems.
SNMP (Simple Network
Management Protocol)
A protocol used to manage nodes in an IP network.
SNMP Agent An agent resides on an SNMP-managed device, and performs
operations when requested to do so by an SNMP manager.
SNMP Community A grouping of SNMP agents that can be managed by an
SNMP manager. An SNMP manager can manage more than
one SNMP community. The community name is used to
authenticate the SNMP manager before allowing it access to
the agent.
SNMP MIB (Management
Information Base)
The information that an SNMP manager, such as the NMS,
can request from an SNMP agent.
SNMP Trap A message sent by an SNMP agent to an NMS, console, or
terminal to indicate the occurrence of a significant event, such
as a specified condition, or a defined threshold that was
reached.
SNMP Trap Server The server to which SNMP trap messages are forwarded.
SNTP (Simple Network
Time Protocol)
A feature that provides LMS4000 devices with an accurate
time clock for time stamping events in a log file.
Spread Spectrum A communication technology in which the transmitted signal
occupies a much greater bandwidth than the information
bandwidth. The benefits of spread spectrum are generally
lower spectral power density, and immunity to noise,
interference and jamming.
Static Route A route that is manually entered into a routing table by a crafts
person or network operator.
Subscriber In the context of LMS, it is the individual or entity associated
with an EUM.
Term Definition