System of backbone routers including edge routers that provide application based routing guidance to a computing device

A method for providing routing guidance to a computing device, comprising:

• estimating, by one or more edge routers, a connection performance from the computing device to a destination subnet group through one or more links between the computing device and the one or more edge routers;
• determining, by the one or more edge routers, one or more connection performance scores for the destination subnet group based on the estimated connection performance from the computing device to the destination subnet group through each of the one or more links;
• communicating, by the one or more edge routers, routing guidance to the computing device based on the one or more connection performance scores of each of the one or more links, comprising the one or more edge routers building and maintaining a map between public and private applications, and the destination subnet group, and transmitting the routing guidance to the computing device based on the built and maintained map, wherein the routing guidance provides edge router selection information to the computing device;
• and
• selecting, by the computing device, at least one link of the one or more links between the computing device and the one or more edge routers based on the routing guidance, wherein the computing device performs a routing selection through the selecting one or more links without having sensing or monitoring of routing performance at the computing device.