User's Manual

Table Of Contents
Simple Network Management Protocol (SNMP)
Commands
Managing the network from a Network
Management Station (NMS)
3-2
pmp-0049 (September 2012)
Roles of Hardware and Software Elements
Role of the Agent
In SNMP, software on each managed device acts as the agent. The agent collects and stores
management information in ASN.1 format, in a structure that a MIB (management information base)
defines. The agent responds to commands to
send information about the managed device.
modify specific data on the managed device.
Role of the Managed Device
In SNMP, the managed device is the network element that operates on the agent software. In the fixed
wireless broadband IP network, this managed device is the module (AP, SM, or BH). With the agent
software, the managed device has the role of server in the context of network management.
Role of the NMS
In SNMP, the NMS (network management station) has the role of client. An application (manager
software) operates on the NMS to manage and monitor the modules in the network through interface
with the agents.
Dual Roles for the NMS
The NMS can simultaneously act as an agent. In such an implementation, the NMS acts as
client to the agents in the modules, when polling for the agents for information and sending
modification data to the agents.
server to another NMS, when being polled for information gathered from the agents and receiving
modification data to send to the agents.
Simple Network Management Protocol (SNMP) Commands
To manage a module, SNMPv2 supports the set command, which instructs the agent to change the
data that manages the module.
To monitor a network element, SNMPv2 supports
the get command, which instructs the agent to send information about the module to the
manager in the NMS.