Monitoring - Netflow

Your router spews UDP packets (port 2055 typically) toward a collector. That collector must:

Let’s tear down the hype and get into the real guts of NetFlow: what it is, how to deploy it without losing your mind, and the hard-won lessons from years of chasing packets. netflow monitoring

Here’s where most guides go soft. Let’s get practical. Your router spews UDP packets (port 2055 typically)

(originally Cisco, now an industry standard with IPFIX, sFlow, and jFlow variants) is a technology that samples or aggregates IP traffic into flows . now an industry standard with IPFIX