US Patent 8059629 Digraph network timing synchronization

A method for synchronizing a digraph network is disclosed. The method comprises receiving timing information from a first node at a second node over a first connection specified by a first digraph link, wherein the first digraph link is a directional link specifying routing information at the first node in a network, and wherein the network includes a plurality of nodes each with a plurality of digraph links. The method further comprises calculating a synchronized time using the received timing information and a local time and sending timing information from the second node to a third node over a second connection specified by a second digraph link.