[SNMP4J] Snmp4j agent -- can print and store the incoming requests

[nitin sharma]

hi,
I would like to performance test my application (management) server. In
practice this server interacts with multiple devices, but i cant get that
many devices in my test environment.

So, my objective is to built a snmp agent simulator that i can use during
load testing . This simulator need to act like various devices that exists
in reality.
Hence, i would like to decode the incoming request, and based upon the
input, change my response and send back to server.

Regards,
Nitin Kumar Sharma.


On Mon, Jan 19, 2015 at 12:36 PM, Frank Fock <fock at agentpp.com> wrote:

> Hi Nitin,
>
> Wha is your goal? Writing a SNMP agent?
> Then you should use SNMP4J-Agent on top of SNMP4J.
> Beginning writing a SNMP agent with SNMP4J from scratch needs a lot of
> SNMP know how.
>
> SNMP4J-Agent already implements most of complex agent stuff.
>
> But finally, what is the printing for?
>
> Best regards,
> Frank
>
> > On 19 Jan 2015, at 05:20, nitin sharma <kumarsharma.nitin at gmail.com>
> wrote:
> >
> > thanks Shivi...
> >
> > -- Kindly excuse me for this lengthy email.....
> >
> >
> > i looked at the CommandResponder interface, it does have "ProcessPdu". i
> > created a class ( Snmp_commandResponder) that implements this interface
> and
> > overrides ProcessPdu(CommandResponder event) method. right now i am just
> > printing event.toString() and getting the following text..
> >
> > ==========================
> > *processPdu received!CommandResponderEvent[securityModel=2,
> > securityLevel=1, maxSizeResponsePDU=65535, pduHandle=PduHandle[16071],
> >
> stateReference=StateReference[msgID=0,pduHandle=PduHandle[16071],securityEngineID=null,securityModel=null,securityName=public,securityLevel=1,contextEngineID=null,contextName=null,retryMsgIDs=null],
> > pdu=GETBULK[requestID=16071, errorStatus=Success(0), errorIndex=16,
> VBS[0.0
> > = Null]], messageProcessingModel=1, securityName=public, processed=false,
> > peerAddress=127.0.0.1/65469 <http://127.0.0.1/65469>,
> > transportMapping=org.snmp4j.transport.DefaultUdpTransportMapping at 16f144c
> ,
> > tmStateReference=null]*
> >
> > *=====================*
> >
> > However, CommandResponder doesn't have method for sending back the snmp
> > message. So, i looked at the CommandProcessor class in org.snmp4j.agent
> > package.. this class too have ProcessPdu method. Well, as a quick and
> dirty
> > way i changed my Snmp_commandResponder to extend from CommandProcessor
> and
> > in overwritten ProcessPdu method, i am calling super.ProcessPdu(event).
> >
> > My code is working, but i would like to know
> > a. if that is a correct way?
> > b. is the printed Pdu message (above) seems to be a correct one?
> > c. Is there a way i can get to know source server and port from where the
> > request to my client was originated ?
> >
> > my Code is attached as zip file to this email
> >
> >
> >
> > Regards,
> > Nitin Kumar Sharma.
> >
> >
> > On Thu, Jan 15, 2015 at 10:46 PM, Shivi Goel -X (shivigoe - NICHEPRO
> > TECHNOLOGIES PRIVATE LIMITED at Cisco) <shivigoe at cisco.com> wrote:
> >
> >> Hi Nitin,
> >> An incoming request or notification is stored as an instance of
> >> CommandRespondentEvent class in snmp4j. This class gives you api to get
> pdu
> >> and other info.
> >> Please refer to the API doc:
> >> http://www.snmp4j.org/doc/org/snmp4j/CommandResponderEvent.html
> >>
> >> Regards,
> >> Shivi
> >>
> >> -----Original Message-----
> >> From: SNMP4J [mailto:snmp4j-bounces at agentpp.org] On Behalf Of nitin
> sharma
> >> Sent: Friday, January 16, 2015 7:35 AM
> >> To: snmp4j at agentpp.org
> >> Subject: [SNMP4J] Snmp4j agent -- can print and store the incoming
> requests
> >>
> >> HI team,
> >>
> >> I am building a Snmp4j agent code that will print the incoming Snmp
> >> request . is it possible scenario to be coded? if yes, then please do
> >> provide some guidance.
> >>
> >> Regards,
> >> Nitin Kumar Sharma.
> >> _______________________________________________
> >> SNMP4J mailing list
> >> SNMP4J at agentpp.org
> >> https://oosnmp.net/mailman/listinfo/snmp4j
> >>
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