1. A method, comprising: determining, for each route computational node of a plurality of route computational nodes in a network, a tree of paths between itself and each of a plurality of nodes in the network; determining a particular tree of paths for a particular node of the plurality of nodes to a plurality of the plurality of nodes based on at least two of said determined trees of paths for said route computational nodes; and the particular node sending a packet towards a destination based on the particular tree of paths.