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Agent API

SNMP4J-Agent is a Java™ API on top of the core SNMP4J API for the development of SNMP agents (command responders).
SNMP4J-Agent manages all the complex security and request processing. You just need to add your instrumentation code.

The SNMP4J-Agent Java SNMP agent API adds command responder including notification originator and proxy forwarder support to the SNMP4J core API and comes with:

  • Implementations for SNMP-TARGET-MIB, SNMP-NOTIFICATION-MIB, SNMP-PROXY-MIB, SNMP-FRAMEWORK-MIB, SNMPv2-MIB, SNMP-COMMUNITY-MIB, SNMP-USER-BASED-SM-MIB, SNMP-VIEW-BASED-ACM-MIB, NOTIFICATION-LOG-MIB, and SNMP-MPD-MIB, SNMP4J-PROXY-MIB, SNMP-TLS-TM-MIB, SNMP-TSM-MIB.
  • SNMPv1,v2c,v3 multi-lingual agent support, including MD5 and SHA authentication as well as DES, 3DES and AES(128, 192, 256) privacy.
  • IPv4 and IPv6 UDP, TCP, and TLS support.
  • Code generation from MIB specifications is provided through AgenPro which is a language and API independent template based code generator with round-trip generation facilities.
  • New in version 2:
  • Transport Security Model (TSM) including Transport Layer Security Transport Mapping (TLSTM) as defined by RFC 5343, 5590, 5591, 5953.
  • Java™ SE 6 or later, including Generics and System.nanoTime() support.

SNMP4J-Agent provides many ways of instrumenting your agent - all of which are described in the SNMP4J-Agent Instrumentation Guide PDF:

  • Overwrite (implement) a callback method for read (GET, GETNEXT, GETBULK) operations and for writeable objects one or more callback methods of the SNMP two-phase-commit.
  • Add a query listener to the managed object server instance to update managed objects just before they are processed by the agent API to fulfill a request.
  • Use a background thread to keep managed object values up-to-date.
  • Implement database like interface to query values for large (virtual) tables and let the API cache tabular data for best retrieval performance (available with SNMP4J-AgentX).