Hello, @Bhunesh r.
NAM is a passive listening APM system built on top of our sniffing probe that analyzes the wire communication in your data center and feeds the processed data to the report engine.
No agents needed. NAM does not consume any resources of your apps. All we do is listen.
NAM as a system consists of three logical tiers: a sniffing probe (NAM Probe), web-based report engine (NAM Server) and a configuration component (NAM Console).