Hello Frank, Thanks a lot for your quick response. I think i didn't explained my problems properly. My task : I have to develop a system which monitors few temperature sensors(150+) and check whether they are normal or abnormal. If system detects any one sensor abnormal it has to send a trap or notification to Manager using SNMP.
To my understanding to monitor all these sensors using snmp, system have to first register all sensors into snmp agent having unique OID. Todo so we need a MIB file. In our MIB file we have both scalar and group objects. According to your example in org.snmp4j.agent.example i started to work. In our scenario, we have 3 types of sensors. Total numbers of sensors(integer) of each type as scalar object and their properties(value,alert type,..). *.1.3.6.1.4.1.9483.32.11.13. * is a valid OID provided by client. So from here "scalar objects" *.1.3.6.1.4.1.9483.32.11.13.1.1 =Total numbers of sensor of Type1 and **.1.3.6.1.4.1.9483.32.11.13.2.1 =Total numbers of sensor of Type2.* "Group objects" using MOTable in snmp4j *.1.3.6.1.4.1.9483.32.11.13.1.2.1.1 = Type1 tableentry and * *.1.3.6.1.4.1.9483.32.11.13.2.2.1.1 = Type2 tableentry. *Then adding columns and rows. *Problems: * *1) When i am adding both scalar and table objects using single program, it is throwing DuplicationRegistartionException. * * I tried to change the context from null to new OctectString () No exception it generated.But when using snmpget command to access object "No such instance" .* *2) I get all data from database and then add to table. Each row has attributes sensorid, status (0/1),alerttype, value.* * Initially sensors have status as 0, alerttype OK. But in abnormal state corresponding sensorid row should be updated. Some sensors may deleted or added. * * This is to provide information about any sensor at any time Manager queries.* * * I hope i explained my problem in detail so that i can find a solution or idea. I need you assistance to solve my problem. Thank you for reading my whole problem. Once again Thanks in advance for your support and ideas. Waiting for your reply..... Thanks & Regrads Nani * * * * _______________________________________________ SNMP4J mailing list SNMP4J@agentpp.org http://lists.agentpp.org/mailman/listinfo/snmp4j