<div dir="ltr">Hi,<div>I have difficulty understanding ndnSIM tracers concept<div>In ndn-app.hpp there are 6 tracers defined TransmittedInterests, ReceivedInterests, TransmittedData, ReceivedData, TransmittedNack, receivedNack. I am unable to find the tracer callback functions corresponding to these tracers. Please advice me in this regard. Thank you.</div><div><br></div><div>Regards.</div><div>swetha B,</div><div>PhD student,</div><div>RNSIT,</div><div>Bangalore</div></div></div>