7 snmp configuration, Snmp overview, Snmp mechanism – H3C Technologies H3C WX6000 Series Access Controllers User Manual
Page 93: Snmp configuration
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SNMP Configuration
This chapter includes these sections:
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Displaying and Maintaining SNMP
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SNMPv1/SNMPv2c Configuration Example
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SNMP Logging Configuration Example
SNMP Overview
The Simple Network Management Protocol (SNMP) offers the communication rules between a
management device and the managed devices on a network. It defines a set of messages, methods
and syntax to implement the access and management from the management device to the managed
devices. SNMP has the following characteristics:
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Automatic network management: SNMP enables network administrators to search and modify
information, find and diagnose network problems, plan for network growth, and generate reports on
network nodes.
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SNMP shields the physical differences between various devices and thus realizes automatic
management of products from different manufacturers. Offering only the basic set of functions,
SNMP makes the management tasks independent of both the physical features of the managed
devices and the underlying networking technology. Thus, SNMP achieves effective management
of devices from different manufacturers, especially in small, high-speed and low cost network
environments.
SNMP Mechanism
An SNMP managed network comprises primarily network management stations (NMSs) and agents.
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An NMS is a station that runs the SNMP client software. It offers a user friendly interface, making it
easier for network administrators to perform most network management tasks.
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An agent is a program on the device. It receives and handles requests sent from the NMS. Only
under certain circumstances, such as interface state change, will the agent inform the NMS
automatically.
An NMS manages an SNMP enabled network, whereas agents are the managed network device. They
exchange management information through the SNMP protocol.
SNMP provides the following four basic operations:
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Get operation: The NMS gets the value of one or more objects of the agent through this operation.
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Set operation: The NMS can reconfigure the value of one or more objects in the agent MIB
(Management Information Base) by means of this operation.