Patent ID: 6842463
Filing Date: 2005-01-11
Classification: H04L

Abstract:
1. A method for changing a reserved capacity for a given tunnel, comprising: receiving an indication of traffic demand for a tunnel through a network; based on said received indication, determining an estimated total capacity requirement; comparing said estimated total capacity requirement to said reserved capacity; where said estimated total capacity requirement exceeds said reserved capacity, requesting an increase of said reserved capacity; determining whether a current path of said tunnel has sufficient available capacity to accommodate said estimated total capacity requirement, said current path having a source node and a destination node; where said current path of said tunnel has sufficient available capacity to accommodate said increase, transmitting signaling to nodes along said current path to request said increase of said reserved capacity; where said current path of said tunnel has insufficient available capacity to accommodate said increase, determining a plurality of paths through said network from said source node to said destination node, where each path of said plurality of paths has an associated available capacity; and selecting one path of said plurality of paths having sufficient associated available capacity to accommodate said estimated total capacity requirement.