H3C Technologies H3C WX3000E Series Wireless Switches - Manual (Page 124)

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SNMP configuration
SNMP overview
Simple Network Management Protocol (SNMP) offers the communication rules between a management
device and the managed devices on the network; it defines a series of messages, methods and syntaxes
to implement the access and management from the management device to the managed devices. SNMP
shields the physical differences between various devices and realizes automatic management of
products from different manufacturers.
An SNMP enabled network comprises the network management system (NMS) and agents.
The NMS manages agents by exchanging management information through SNMP. The NMS and
managed agents must use the same SNMP version.
SNMP agents support SNMPv1, SNMPv2c, and SNMPv3.
• SNMPv1 uses community name for authentication. Community name defines the relationship
between an SNMP NMS and an SNMP agent. SNMP packets with community names that do not
pass the authentication on the device are simply discarded. A community name plays a similar role
as a key word and can be used to control access from NMS to the agent.
• SNMPv2c uses community name for authentication. Compatible with SNMPv1, it extends the
functions of SNMPv1. SNMPv2c provides more operation modes such as GetBulk and
InformRequest; it supports more data types such as Counter64; and it provides various error codes,
thus being able to distinguish errors in more detail.
• SNMPv3 offers an authentication that is implemented with a User-Based Security Model (USM).
You can set the authentication and privacy functions. The former is used to authenticate the validity
of the sending end of the authentication packets, preventing access of illegal users; the latter is used
to encrypt packets between the NMS and agents, preventing the packets from being intercepted.
USM ensures a more secure communication between SNMP NMS and SNMP agent by
authentication with privacy.
For more information about SNMP, see H3C WX Series Access Controllers Network Management and
Monitoring Configuration Guide.
SNMP configuration task list
SNMPv1 or SNMPv2c configuration task list
Perform the tasks in Table 46 to configure SNMPv1 or SNMPv2c.
Table 46 SNMPv1 or SNMPv2c configuration task list
Task Remarks
Enabling SNMP
Required.
The SNMP agent function is disabled by default.
IMPORTANT:
If SNMP agent is disabled, all SNMP agent-related configurations are
removed.