A method of optimising connection set-up times between nodes in a centrally controlled network

摘要

In one aspect, a method of optimizing connection set-up times between nodes in a centrally controlled network comprises sending a path set-up request from a node to a controller is provided If a connection cannot be made at a requested time, not sending a no acknowledgment message, but only and sending an acknowledgment message from the controller to the node when the network connection has been established.