Proxy Creation in SNMPv1 and SNMPv2 Master Agents

In the SNMPv1/v2 master agent example, proxy registration is identical to standard MIB registration. The proxies are created as shown in the following example.

Example 21–2 Proxy Creation in the MasterAgent Example

		[...]

		 // First we need to create a peer to the distant sub agent.
	    //
	    final SnmpPeer peer = 
		 new SnmpPeer(host, Integer.parseInt(port));
	    final SnmpParameters p = new SnmpParameters();

	    // The sub agent is seen as a SNMPv2.
	    //
	    p.setProtocolVersion(SnmpDefinitions.snmpVersionTwo);

	    //Set the parameters to the peer.
	    //
	    peer.setParams(p);
	    
	    // SnmpProxy creation.
	    //
	    final SnmpProxy proxy = new SnmpProxy(snmpAdaptor.getEngine(),
						  peer,"1.3.6.1.2.1");

	    // A SnmpProxy is also an MBean. Register it in the 
	    // MBeanServer.
	    //
	    proxyObjName= new ObjectName("snmp:class=SnmpProxy");
	    server.registerMBean(proxy, proxyObjName);
	    proxy.setSnmpAdaptorName(snmpObjName);

[...]

To instantiate and register the proxy, the MasterAgent example first of all creates a peer to the subagent using new SnmpPeer(), and creates security parameters p using the SnmpParameters() method. It then sets the subagent as an SMNPv2 agent using setProtocolVersion.

The MasterAgent passes the parameters p to the new peer using peer.setParams. Finally, MasterAgent creates the proxy, passing it the following information:

• The adaptor's engine ID, via snmpAdaptor.getEngine()

• The peer

• The distant MIB's OID, 1.3.6.1.2.1