Node, computer software and method for selecting a resource that is available at multiple caches connected in a communication network. The method includes receiving from a user a request for the resource; identifying one or more caches of the multiple caches that store the resource; determining a total cost associated with a path between the user and each cache of the one or more caches storing the resource, the total cost including a static cost [Cf] that reflects a topology of the communication network and a dynamic cost [Δ] which is indicative of changing conditions of the communication network; and selecting one cache from the one or more caches that store the resource based on a lowest total cost of the one cache.