The dots that represent potential ingress and egress points
on the VNFs enlarge.
Hover over the egress point of the first VNF until a green
circle appears.
Click and hold the green circle,
then drag the cursor to the green circle that appears around the ingress
point for the next VNF, and release the mouse button.
A one-way arrow indicating the flow of traffic in the service
chain appears.
Repeat Step 1 through Step 3 until you
have connected all VNFs in the service chain.