Software [top]: Network Flow Analysis

"Mark," David said quietly. "Look at the bandwidth graph. Now, look at the flow data. What do you see?"

"Traditional SNMP monitoring—the stuff you were looking at—is like a traffic helicopter," David explained as he blocked the suspicious traffic. "It tells you the highway is jammed. Flow analysis is the traffic cop on the ground. It can tell you that the jam is caused by a blue truck carrying hazardous materials in the left lane." network flow analysis software

Sample dashboard layout:

Known for its "sensor" based pricing, PRTG is an excellent all-in-one solution that handles flow analysis alongside hardware health monitoring. 3. ManageEngine NetFlow Analyzer "Mark," David said quietly

| Phase | Activities | Timeline | Owner | |-------|------------|----------|-------| | 1. Deployment | Install collector on VM (16 vCPU, 64GB RAM, 2TB SSD) | Week 1 | Network team | | 2. Configuration | Add routers/switches/firewalls as exporters (NetFlow v9) | Week 2 | Security team | | 3. Baselining | Capture 7 days of normal traffic | Week 3 | NOC | | 4. Alert setup | Thresholds: high bandwidth, new protocols, asymmetric routing | Week 4 | SOC | | 5. Integration | Forward alerts to Slack + ServiceNow, log to SIEM | Week 5 | DevOps | What do you see

The flow analysis software revealed that the backup server had been compromised and was attempting to exfiltrate data during business hours—piggybacking on the high traffic volume to stay hidden.