Hi Peter, There is no such method to add a complete row to a PDU. For traps/notifications, it would be against the protocol design. Traps and notifications should inform about changes but should not transport (all) the data that changed. In a critical situation, the risk is too high that a big PDU could not be created, send, received and processed properly. Therefore, the concept of trap-directed-polling is used. Thus, you should only send a single column that is most critical to know about. The rest of the columns can then be requested by the trap receiver if needed.
Best regards, Frank > On 01 Apr 2016, at 20:11, Peter S <peterkt2...@yahoo.com> wrote: > > Greetings, > Thank you for the SNMP4J library. > I understand with the SNMP protocol there is no concrete implementation of a > Table or Row. These concepts are part of the SMI specification, not the > protocol. > > However, I was wondering if the SNMP4J Agent API provided a convenience > method or API for sending an entire row or even a table of rows in an SNMP > trap or notification. I am using the free version of SNMP4J agent, version > 2.4.2. I have functioning code for sending simple scalar notifications. My > question concerns sending complex types, like table rows. If such a row can > be containing in one UDP message, is there an easy way to just provide this > row to the SNMP4J api. Something like the following: > MOTable<...> table = moFactory.createTable(rootTableOID, indexDef, > columns)... build table and rowsScopedPDU pdu = new > ScopedPDU()List<VariableBinding> vb = new ArrayList ...vb.add(0, new > VariableBinding(SnmpConstants.sysUpTime, sysUpTime));vb.add(1, new > VariableBinding(SnmpConstants.snmpTrapOID, notificationRoot));vb.add(2, new > VariableBinding(tableRootOID, table);..orvb.add(2, new > VariableBinding(tableRootOID, a row in table)...pdu.addAll(vb); > snmp.notify(pdu, target); > > > Alternatively ... > > If there is no such support for this functionality, my approach is to simply > add multiple VariableBinding instances for each column instance value to a > ScopedPDU instance. Would this be something like the following? > ScopedPDU pdu = new ScopedPDU()List<VariableBinding> vb = new ArrayList > ...vb.add(0, new VariableBinding(SnmpConstants.sysUpTime, > sysUpTime));vb.add(1, new VariableBinding(SnmpConstants.snmpTrapOID, > notificationRoot)); > ...for each column in a table rowvb.add(columnIndex, new VariableBinding(full > columnOID, including instance number, value)pdu.addAll(vb); > snmp.notify(pdu, target); > Thank you in advance for your help! > -Peter > > _______________________________________________ > SNMP4J mailing list > SNMP4J@agentpp.org > https://oosnmp.net/mailman/listinfo/snmp4j _______________________________________________ SNMP4J mailing list SNMP4J@agentpp.org https://oosnmp.net/mailman/listinfo/snmp4j
