R3204P16-HP Load Balancing Module System Maintenance Configuration Guide-6PW101

SNMP provides the following four basic operations:

• Get—The NMS retrieves SNMP object nodes in an agent MIB.

• Set—The NMS modifies the value of an object node in the agent MIB.

• Trap—The SNMP agent sends traps to report events to the NMS.

• Inform—The NMS sends alarms to other NMSs.

SNMP protocol versions

HP SNMP agents support three SNMP protocol versions: SNMPv1, SNMPv2c, and SNMPv3.

• SNMPv1 uses community names for authentication. A community name performs a similar role as

a password to regulate access from the NMS to the agent. If the community name provided by the

NMS is different from the community name set on the agent, the SNMP connection cannot be

established and the NMS fails to access the agent.

• SNMPv2c uses community names for authentication. SNMPv2c is compatible with SNMPv1, but it

provides more operation modes, supports more data types, and provides various error codes for

troubleshooting.

• SNMPv3 offers authentication based on the User-based Security Model (USM), which allows

network administrators to set authentication and privacy functions. The authentication function is

used to authenticate the validity of the sending end of the authentication packets, preventing access

of unauthorized users. The privacy function is used to encrypt packets between the NMS and agents,

preventing the packets from being intercepted. USM ensures more secure communication between

NMSs and agents by providing authentication and privacy functions.

Successful interaction between an NMS and the agents requires consistency of SNMP versions

configured on them.

SNMP configuration task list

Complete the following tasks to configure SNMP:

Task Remarks

Configuring SNMP basic parameters Required

Configuring SNMP logging Optional

Configuring SNMP traps Optional

Configuring SNMP basic parameters

SNMPv3 differs from SNMPv1 and SNMPv2c in many aspects. Their configuration procedures are

described in separate sections.

Configuring SNMPv3 basic parameters

Follow these steps to configure SNMPv3 basic parameters:

To do… Use the command…

Remarks

Enter system view system-view —