[SNMP4J] SNMP4J V3 perfromance

[Scott VanWart]

Frank,

This is what I am trying to do. If I reply with getBulk, the trap seems
to process properly, but it's slow. If I respond with
MessageDispatcher.returnResponsePdu it is very fast but the response
does not seem correct since I receive the trap 6 times.

How should I properly be responding the INFORM?

Thanks,
Scott

private class SNMPResponder implements CommandResponder
{
	public synchronized void processPdu(CommandResponderEvent e) 
	{
		PDU command = null;
		String payload = "";
		String src = "";
			
			
		try
		{
			command = e.getPDU();
			//command.setType(PDU.INFORM);
			Address source = e.getPeerAddress();
			e.setProcessed(true);
			
			if (e.getMessageProcessingModel() ==
MessageProcessingModel.MPv3)
			{
				//MultiThreadedMessageDispatcher md =
(MultiThreadedMessageDispatcher) e.getMessageDispatcher();
	
					 
				// 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);

-----Original Message-----
From: Frank Fock [mailto:fock at agentpp.com] 
Sent: Tuesday, October 25, 2005 7:50 PM
To: Scott VanWart
Cc: snmp4j at agentpp.org
Subject: Re: [SNMP4J] SNMP4J V3 perfromance

Hi Scott,

Sorry, I do not see how the code snippet is related to that?

Best regards,
Frank

Scott VanWart wrote:

>Hi Frank,
>
>I am not actually trying to send traps. I am trying to simply respond
to
>the Request that I receive. I am listening for Informs and not sending,
>but the Inform requires a respsonse. Is this not the correct way to do
>it? Should I be sending a GetBulk? The getBulk is Veerrrrry slow.
>
>Thanks,
>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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