[SNMP4J] SNMP4J V3 perfromance

[Scott VanWart]

Is this the proper way to handle responses to Informs as well as traps?

Scott

-----Original Message-----
From: Frank Fock [mailto:fock at agentpp.com] 
Sent: Wednesday, October 19, 2005 4:04 PM
To: Scott VanWart
Cc: snmp4j at agentpp.org
Subject: Re: [SNMP4J] SNMP4J V3 perfromance

Scott,

You are sending SNMP requests while you are handling a trap event.
While your are waiting for the response of your request, you are not
able
to handle any traps. I recommend therefore either sending an async
request
or using the MultiThreadedMessageDispatcherImpl as message disptacher.

Best regards,
Frank

Scott VanWart wrote:

>Frank,
>
>Is this the correct way to set the UDP Buffer size? And what number is
>reasonable to handle roughly 600-1000 events per second? Should it be
>400 X 1000 ?
>
>When you say decouple trap handling, I am not certain what you mean?
>
>Something like this?
>
>MessageDispatcher md = e.getMessageDispatcher();
>	
>md.returnResponsePdu(e.getMessageProcessingModel(),e.getSecurityModel()
,
>e.getSecurityName(),  e.getSecurityLevel(), command,
>e.getMaxSizeResponsePDU(), e.getStateReference(), null);
>
>
>Thanks!
>Scott
>
>-----Original Message-----
>From: Frank Fock [mailto:fock at agentpp.com] 
>Sent: Wednesday, October 19, 2005 3:38 PM
>To: Scott VanWart
>Cc: snmp4j at agentpp.org
>Subject: Re: [SNMP4J] SNMP4J V3 perfromance
>
>Hi Scott,
>
>You may check your UDP buffer size and you should probably decouple
>trap handling with sending out a synchronous request.
>
>Best regards,
>Frank
>
>Scott VanWart wrote:
>
>  
>
>>Hey Guys,
>>
>>
>>
>>I am having problems with performance using SNMP4J. I have verified
>>    
>>
>that
>  
>
>>the device I am working with it sending more than 1 trap (inform) per
>>second, but all I seem to be able to receive is one event per second.
>>Here is my code, does anything jump out? Is there something I need to
>>set? Thanks!
>>
>>
>>
>>Thanks!
>>
>>Scott
>>
>>
>>
>>
>>
>>try
>>
>>{
>>
>>command = e.getPDU();
>>
>>           Address source = e.getPeerAddress();
>>
>>           e.setProcessed(true);
>>
>>                                               
>>
>>           if (e.getMessageProcessingModel() ==
>>MessageProcessingModel.MPv3)
>>
>>           {
>>
>>                       // send response.
>>
>>                       UserTarget target = new UserTarget();
>>
>>                       target.setAddress(source);
>>
>>                       target.setVersion(SnmpConstants.version3);
>>
>>                       target.setSecurityName(new OctetString(user));
>>
>>
>>target.setSecurityLevel(SecurityLevel.AUTH_PRIV);
>>
>>
>>
>>                       snmp.getBulk(command, target);
>>
>>           }
>>
>>                                               
>>
>>           VariableBinding varBinding;
>>
>>           Variable var;
>>
>>                       
>>
>>           // discover how many variables exist
>>
>>           int length = command.size();
>>
>>
>>
>>           // loop through variables and put them ALL into payload.
>>
>>           for(int i = 0; i < length; i++)
>>
>>           {
>>
>>                       varBinding = command.get(i);
>>
>>                       var = varBinding.getVariable();
>>
>>                       payload += var.toString() + "\t";
>>
>>           }
>>
>>                                   
>>
>>           // Get source address of Trap.
>>
>>           String test = source.toString();
>>
>>           int colon = test.indexOf('/');
>>
>>           src = test.substring(0, colon);
>>
>>
>>
>>           }
>>
>>catch (Exception pe)
>>
>>           {
>>
>>                       logger.error("Could not decrypt SNMP data:",
>>pe);
>>
>>           }
>>
>>
>>
>>
>>
>>_______________________________________________
>>SNMP4J mailing list
>>SNMP4J at agentpp.org
>>http://lists.agentpp.org/mailman/listinfo/snmp4j
>>
>>
>> 
>>
>>    
>>
>
>
>  
>


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