Is it possible to make route selection based on path latency? (or even delegate path selection to an external app/program/api?) I'm currently using ospf (but can really use any igp) to manage routing in a system with many end nodes all connected together via a handful of servers (via vpn links) which are spread across the country. The problem is, the 'end nodes' are always moving/relocating and currently have to be manually updated to use which ever server(s) are closest / quickest. It would be nice if there was a method or protocol that could make path selection based on lowest avg latency. The applications that transverse the network aren't bandwidth intensive, but are very latency sensitive so detecting and using the lowest latency path would ideal. Any input / suggestions would be greatly appreciated!