Sierra Raven EDGE - Manual (Page 73)

Rev 3.0B Feb.08 69
9 9: SNMP : Simple Network
Management Protocol
• SNMP Configuration
• SNMP MIB Definition
Sample
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 Raven, 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 Raven, 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 Raven can be configured as an SNMP agent and supports
SNMPv2c and SNMPv3.
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 Raven, 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.
SNMP Traps
SNMP traps are alerts that can be sent from the managed
device to the Network Management Station when an event
happens. Your Raven is capable of sending the linkUp trap
when the network connection becomes available.