SNMP Global Settings

You can set global SNMP for the device.

Context

SNMP agent is an agent program on the managed device. The SNMP agent maintains information for the managed device, responds to the requests from the NMS, and sends management data to the NMS. Before the NMS manages a device through SNMP, the SNMP agent must be enabled on the device and a proper SNMP version needs to be selected.

A web system supports SNMPv1, SNMPv2c, and SNMPv3. The device and NMS must use the same SNMP version.

NOTE:

If a device is managed by multiple NMSs running different SNMP versions, all the SNMP versions need to be set on the device so that the device can communicate with these NMSs.

**Table 1** Usage scenarios of SNMP
Version	Usage Scenario
SNMPv1	Applicable to small-sized networks that have simple and stable topologies, have low security requirements, or are not prone to attacks. For example, campus networks and small enterprise networks.
SNMPv2c	Applicable to medium- or large-sized networks that have low security requirements or are not prone to attacks, have high service traffic volume, and may be congested by traffic.
SNMPv3	Applicable to all networks, especially the networks having high security requirements. SNMPv3 allows only authorized administrators to manage the network. If the NMS and managed devices communicate over the public network, SNMPv3 is recommended.

Procedure

Choose System Management > SNMP in the navigation tree to open the SNMP Global Settings page.

Table 2 describes parameters on the SNMP Global Settings page.

**Table 2** SNMP Global Settings
Parameter	Description
SNMP agent	Indicates whether the SNMP agent is enabled.
SNMP version	Indicates the SNMP version on the device. By default, SNMPv3 is supported. Choose one or multiple versions. Ensure that the SNMP versions on the device and on the NMS are the same. NOTE: Using SNMPv1&v2c has potential security risks. SNMPv3 is recommended.
Local engine ID	This value is automatically generated by the system or set by you.
Device position	Indicates the physical location of the device. When the Device Position field is empty, clicking Apply will display the factory settings of the device.
Contact	Indicates the contact information maintained on the device. When the Contact Information field is empty, clicking Apply will display the factory settings of the device.

Set parameters.
Click Apply to complete the configuration.