Active Route Manager

[Mike Hammett]

https://blog.sflow.com/2015/10/active-route-manager.html

Is this still being actively developed? It looks like the last github commit was 2 years ago.

[Peter Phaal]

Most of the functionality is provided by the sFlow-RT analytics engine which is in active development. 

The active-routes application is functionally complete with no known bugs. If you find issues or are interested in additional functionality please raise issues against the github project. The application is a few hundred lines of embedded JavaScript that is easily customized as needed.

https://sflow-rt.com/writing_applications.php

The above article describes the structure of an sFlow-RT application.