​ With the rapid proliferation of video services, particularly video streaming, deployment of multicast services demands an appropriate monitoring to be in place in order to keep track of this traffic type. Adequate and comprehensive monitoring is pa...

Enterprise network administrators are facing an increasing number of challenges when it comes to network monitoring. Business critical services must be clearly distinguished from the other traffic classes and always monitored in terms of specific QoS...

In our previous posts we have talked about duplication problem and possible solutions. We have explained how to set up automatic deduplication and hopefully this was helpful. Now we are going to go one step further and explain how to set up manual de...

Juniper first started with Jflow support, similar and compatible to Cisco Netflow standard, and later added support for vendor-neutral IPFIX. Flow export in Juniper terminology refers to inline active flow monitoring. This feature is implemented dire...

The topics in our previous posts were mainly related to flow optimization and configuration in terms of achieving optimal results on the flow collector side. The diversity of routers and L3 switches on the market as well as their support of different...

Until now we have wrote about different ways and options for exporting and collecting NetFlow traffic. Today we will go one step further in this area...  Often it is necessary to export NetFlow traffic on more than one server (production, develo...

This post gives a short explanation of NetFlow duplication problem, why it is important and how to overcome it. Network admins think about their data and if it is actually correct and deduplicated. And rightfully so! This should not be on their list of concerns - NetFlow analyzer should include out-of-the-box solution to this problem. Unfortunately, this is often not the case because exporting and processing NetFlow data depends on the network and its complexity.

In general, there are two ways duplication can occur: