[SNMP4J] SNMP4J V3 perfromance

Scott VanWart scott.vanwart at Q1Labs.com
Wed Oct 19 20:42:15 CEST 2005


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);
>
>            }
>
> 
>
> 
>
>_______________________________________________
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>
>
>  
>


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