Software defined network (SDN) proxy correlation index (PCI) information distribution across an SDN data-plane

A Software-Defined Network (SDN) to distribute Proxy Correlation Index (PCI) information across an SDN data plane, the SDN comprising:

• a source data plane machine comprising program instructions, that when executed by one or more processors, direct the one or more processors to generate Key Performance Indicator (KPI) data, process the KPI data to generate PCIs, detect a PCI threshold breach, and transfer inbound SDN signaling for delivery to a source SDN controller serving a source geographic area indicating the PCI threshold breach in the SDN data-plane in the source geographic;
• the source SDN controller configured to receive the inbound SDN signaling from the source data plane machine and responsively transfer the inbound SDN signaling for delivery to a central SDN controller;
• the central SDN controller configured to receive the inbound SDN signaling from the source SDN controller, generate the PCI information that characterizes the PCI threshold breach, select a target SDN controller in a target geographic area responsive to the PCI threshold breach, and transfer outbound SDN signaling having the PCI information for delivery to the target SDN controller in the target geographic area;
• and
• the target SDN controller configured to receive the outbound SDN signaling having the PCI information and transfer the outbound SDN signaling having the PCI information for delivery to one or more target data plane machines in the target geographic area.