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Network size gradually increased, the number of network equipment to increase the
number of stages, the network administrator is difficult to timely monitoring the status of
all equipment, find and repair the fault.
Network devices may come from different vendors, and if each vendor provides a separate
set of management interfaces (such as the command line), network management will
become increasingly complex.
SNMP mainly SNMP V1, SNMP V2c several of the most commonly used version.
SNMP V1
SNMP V1 is the original version of the SNMP protocol, providing minimal network
management capabilities. SNMP V1 SMI and MIB are relatively simple, and there are more
security flaws.
SNMPv1 uses community name authentication. The role of the community name is similar
to the password used to restrict access to the Agent by the NMS. If the community name
carried by the SNMP packet is not recognized by the NMS / Agent, the packet is discarded.
SNMP V2c
SNMP V2c also uses community name authentication. SNMP V1 is also compatible with
SNMP V1 functionality: it provides more types of operations (GetBulk operations, etc.);
support for more data types (Counter32, etc.); provides richer error code for more
granularity The area is wrong.
Enter the [System Management] - [SNMP Configuration] menu bar. In the SNMP settings
page, you can enable / disable the SNMP function. You can set the SNMP gateway, version,
community name and so on. Click the <Save> button to complete the configuration. As
shown below:
