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APPENDIX 4
Raven EDGE/GPRS for Cingular - User Guide, version 2.31
Simple Network Management
Protocol (SNMP)
The Raven can be configured as an SNMP agent and supports SNMPv2c and SNMPv3.
SNMP Overview
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.
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
The trap is a "snap-shot" of the settings and status of the Agent's device which is sent as a report to
the NMS in a form that can be parsed and stored in the MIB.
Raven SNMP Configuration
To configure your Raven to work as an SNMP agent, you can use either Wireless Ace, or a terminal
connection to configure the modem using AT commands (page 50). In Wireless Ace, the SNMP
commands are all on the Other menu option.
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