There are two parts:  the 1st one is the k8s cluster in the cloud, in which some traditional CNI is used, such as Flannel/Calico, FabEdge is NOT to replace it, but to add edge connectivity on-top of it.  For the 2nd part, the k8s remote nodes in the edge,  in which FabEdge provides both the connectivity for k8s pods via the existing bridge CNI/host-local plugins and the edge connectivity.  Is it a CNI or not?  If not,  how to describe it more accurately?  I appreciate your advice. 

Haotao Geng
FabEdge