Patent ID: 7596088
Filing Date: 2009-09-29
Classification: H04J,H04L

Abstract:
1. A method for establishing a connection through a communication network that includes multiple segments, comprising: identifying two or more candidate routes for a new connection having a requested bandwidth to be established through the network; providing a sharing definition specifying one or more other connections, which have respective bandwidths and which are permitted to share a bandwidth allocation with the new connection, such that a total bandwidth allocated jointly to the new connection and to the other connections in any given segment is equal to a maximum of the requested bandwidth and of the bandwidths of the other connections in the given segment; for each of the two or more candidate routes, calculating a cumulative additional bandwidth reservation to be allocated to the new connection in the segments along the candidate route, responsively to the sharing definition; selecting a preferred route having a minimum value of the cumulative additional bandwidth reservation out of the two or more candidate routes; and establishing the new connection using the preferred route.