Noction Flow Analyzer version 25.04 has just been released. This update brings a series...
NetFlow data and its fields vs packet capture
When it comes to keeping tabs on networks, we’ve got two heavy hitters: NetFlow and packet capture. They are both...
Decoding TCP flags in NetFlow and IPFIX.
In TCP, flags indicate a particular connection state, provide some additional helpful information for troubleshooting...
The ipTTL and ipTotalLength information elements and how they are used for network traffic analysis
Modern networks are getting increasingly complex. So many things can go wrong with them. Business can suffer, and that...
Setting Flow Table Sizes on Juniper Routers
We often get support tickets from users saying that the amount of data shown in NFA does not correlate with SNMP or is...
Source ID and Observation Domain ID fields meaning & configuration details
This article highlights the importance of the Source ID and Observation Domain ID fields when several metering...
Interface Names and Descriptions Best Practices and Configuration
The name of a network interface is a string that is generated based on the interface attributes. This is a predictable...
BGP Flow Specification Version 2
BGP Flowspec technology provides a more granular approach to Denial of Service (DoS) attacks mitigation when compared...
NetFlow versus sFlow versus IPFIX versus NetStream. L’analyse et la surveillance du trafic réseau.
La surveillance du réseau est un effort systématique d’inspection des paramètres d'un réseau informatique afin de...
Free and Open Source NetFlow analyzers. When Free isn’t really Free.
Have you ever found that a network usage reported by your commercial NetFlow analyzer does not match the actual values or that software contains bugs? …
Introducing NFA Custom Groups
Network professionals count on NFA when monitoring and analyzing traffic, controlling bandwidth utilization, gaining...
Getting Started With Noction Flow Analyzer
Noction Flow Analyzer is a flow-based monitoring and reporting software tool that collects, stores, and presents...
Cisco Catalyst 9200 / 9300 / 9400 / 9500 NetFlow Configuration
NetFlow is a great way to gather traffic statistics from your network. With Noction Flow Analyzer, you can view all...
The Evolution of Network Flow Monitoring, from NetFlow to IPFIX
Network flow monitoring is an essential tool for a lot of network administrators. Flow monitoring allows you to...
So, what exactly is NFA?
When you’re managing a network, there’s so much to think about — from monitoring bandwidth, discovering traffic...
Usage-based billing with NetFlow and sFlow
Usage-based billing enables customers to pay only for data that they have used. In order to charge customers based on...
Insider Threat Detection with NetFlow
When it comes to major security concerns, one of the most serious ones are the data breaches and security exploits...
Multicast Traffic Monitoring and NetFlow
With the increasing popularity of multicast media applications, the monitoring of multicast traffic becomes more and...
One Way Delay Measurements and NetFlow
Role of RTT and OWD for TCP RTT stands for Round Trip Time and it is a length of time that a packet takes from point A...
Questions to ask a NetFlow Vendor Before you Buy
Network visibility is crucial because we cannot manage and secure what we cannot see. NetFlow plays a critical role in...
NetFlow and BGP
Border Gateway Protocol (BGP) is a core routing protocol used by most of the Internet Service Providers (ISPs). BGP’s...