Using AppFlow® to monitor traffic with NetScaler Insight Center™

Now, in most cases, NetScaler is used as a central component to deliver high-availability services to users, both internally and externally. This means that NetScaler, in most cases, handles a large amount of traffic.

What happens if a user complains about the slow performance of an application, or that something is running sluggishly? Or if we want to get an overview of the number of users accessing our services? This is where AppFlow comes in.

AppFlow is a feature in NetScaler that is used to collect web performance data and database information. It can also be used to gather performance from ICA sessions. It is built on the IPFIX format, which is an open standard defined in RFC 5101.

Take a look at the following screenshot, for example:

When a client opens a connection to the VIP of NetScaler, it will perform a new connection to the backend server, and then the traffic will be returned from the backend server back to NetScaler...