Snmp Protocol Versions; Recommended Configuration Procedure - HP FlexNetwork NJ5000 User Manual

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Notifications—Includes traps and informs. SNMP agent sends traps or informs to report
events to the NMS. The difference between these two types of notification is that informs
require acknowledgement but traps do not. The device supports only traps.

SNMP protocol versions

HPE devices support SNMPv1, SNMPv2c, and SNMPv3. An NMS and an SNMP agent must use the
same SNMP version to communicate with each other.
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SNMPv1—Uses community names for authentication. To access an SNMP agent, an NMS
must use the same community name as set on the SNMP agent. If the community name used
by the NMS is different from the community name set on the agent, the NMS cannot establish
an SNMP session to access the agent or receive traps and notifications from the agent.
•
SNMPv2c—Uses community names for authentication. SNMPv2c is compatible with SNMPv1,
but supports more operation modes, data types, and error codes.
•
SNMPv3—Uses a user-based security model (USM) to secure SNMP communication. You can
configure authentication and privacy mechanisms to authenticate and encrypt SNMP packets
for integrity, authenticity, and confidentiality.

Recommended configuration procedure

SNMPv3 differs from SNMPv1 and SNMPv2c in many ways. Their configuration procedures are
described in separate sections.
Table 37 SNMPv1 or SNMPv2c configuration task list
Task
Enabling SNMP agent
1.
Configuring an SNMP view
2.
Configuring an SNMP
3.
community
Configuring SNMP trap function
4.
Displaying SNMP packet
5.
statistics
Table 38 SNMPv3 configuration task list
Task
Enabling SNMP agent
1.
Remarks
Required.
The SNMP agent function is disabled by default.
IMPORTANT:
If SNMP agent is disabled, all SNMP agent-related configurations
are removed.
Optional.
After creating SNMP views, you can specify an SNMP view for an
SNMP community to limit the MIB objects that can be accessed by
the SNMP community.
Required.
Optional.
Allows you to configure that the agent can send SNMP traps to the
NMS, and configure information about the target host (usually the
NMS) of the SNMP traps.
The SNMP agent sends traps to inform the NMS of important
events, such as a reboot.
By default, an agent is allowed to send SNMP traps to the NMS.
Optional.
Remarks
Required.
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