This folder contains the descriptors for the ping and pong VNFs and the ping-pong ns. 
ping-pong NS is a simple example NS to quickly test OSM and has two VNFs -  ping and pong.
The ping VNF sends ping requests and the pong vnf responds to those pings.

The images for these VNFs can be found in http://repo.riftio.com/releases/open.riftio.com/4.3.1/riftware-vnf-images.zip