RAD Data comm LRS-24 - Manual (Page 95)

SNMP Environment C-1
Appendix C
SNMP Management
C.1 Scope
This appendix:
• Provides specific information required to manage LRS-24 (equipped with the
CM-2 module) via a Simple Network Management Protocol (SNMP)
• Includes information regarding the operation of the CM-2 SNMP agent.
C.2 SNMP Environment
General
The SNMP management functions of LRS-24 are provided by an internal SNMP
agent, located on the CM-2 module.
The SNMP management communication uses the User Datagram Protocol (UDP),
which is a connectionless-mode transport protocol, part of the suite of protocols of
the Internet Protocol (IP). This section covers the information related to the SNMP
environment. For a description of the IP environment, refer to Section C-3.
SNMP Principles
The SNMP management protocol is an asynchronous command/response polling
protocol: all management traffic is initiated by the SNMP-based network
management station (except for trap messages), which addresses the managed
entities in its management domain. Only the addressed managed entity answers
the polling of the management station.
The managed entities include a function called “SNMP agent”, which is
responsible for interpretation and handling of the management station requests to
the managed entity, and the generation of properly-formatted responses to the
management station.
SNMP Operations
The SNMP protocol includes four types of operations:
GetRequest Command for retrieving specific management information from the
managed entity. The managed entity responds with a getResponse
message.
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