You can use SNMP (Simple Network Management Protocol) to manage network devices and monitor their processes. An SNMP-managed device, such as a NIOS appliance, has an SNMP agent that collects data and stores them as objects in MIBs (Management Information Bases). The SNMP agent can also send traps (or notifications) to alert you when certain events occur within the appliance or on the network. You can view data in the SNMP MIBs and receive SNMP traps on a management system running an SNMP management application, such as HP OpenView, IBM Tivoli NetView, or any of the freely available or commercial SNMP management applications on the Internet.
Figure 39.1 SNMP Overview
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The NIOS appliance supports SNMPv1, SNMPv2, and SNMPv3. It also adheres to the following RFCs:
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To enable SNMPv3 on the NIOS appliance to provide user-based security, you must first configure SNMPv3 users on the appliance to enable access by SNMP management systems. The appliance supports HMAC-MD5-96 and
HMAC-SHA-96 hash functions as the authentication protocols, and DES (Data Encryption Standard) and AES (Advanced Encryptions Standard) as the encryption methods for SNMPv3 users. For information, see Configuring SNMP.