ProSoft Technology RLXIC-EH, Руководство пользователя

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SNMP : Simple Network Management Protocol RLXIC-EH ♦ Intelligent Cellular
User Manual RadioLinx Intelligent Cellular Ethernet Gateway for HSUPA (3G GSM) Networks
ProSoft Technology, Inc.
Page 67 of 111
May 29, 2009
9 SNMP : Simple Network Management Protocol
In This Chapter
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SNMP Configuration.............................................................................. 68
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SNMP MIB Definition Sample................................................................ 70
The Simple Network Management Protocol (SNMP) was designed to allow
remote management and monitoring of a variety of devices from a central
location. The SNMP management system is generally composed of agents (such
as your RLXIC-EH, a router, a UPS, a web server, a file server, or other
computer equipment), and a Network Management Station (NMS) which
monitors all the agents on a specific network. Using the management information
base (MIB), an NMS can include reporting, network topology mapping, tools to
allow traffic monitoring and trend analysis, and device monitoring.
Authentication ensures SNMP messages coming from the agent, such as the
RLXIC-EH, have not been modified, and the agent may not be queried by
unauthorized users. SNMPv3 uses a User-Based Security Model (USM) to
authenticate, and, if desired or supported, message encryption. USM uses a user
name and password specific to each device.
The RLXIC-EH can be configured as an SNMP agent, and supports SNMPv2c
and SNMPv3.
9.1.1 Management Information Base (MIB)
The management information base (MIB) is a type of database used to compile
the information from the various SNMP agents. Reports from various agents,
such as the RLXIC-EH, are sent as data in form designed to be parsed by the
NMS into its MIB. The data is hierarchical with entries addressed through object
identifiers.
9.1.2 SNMP Traps
SNMP traps are alerts that can be sent from the managed device to the Network
Management Station when an event happens. Your RLXIC-EH is capable of
sending the linkUp trap when the network connection becomes available.