BIER_APP is the application plugin for the SDN controller to implement BIER service in the northbound interface. It provides many RESTful API to get dataes form SDN controller and send configuration information to controller. For example, get topology form controller and show it, distribute nodes to different domain or subdomain, configure necessary information for node in different subdomain, create channels and deploy it with ingress node and egress nodes, show calculated path in topology. This app supports BIER and BIER-TE, nodes can distribute to BIER topology and BIER-TE topology.
