Patent ID: 7969886
Filing Date: 2011-06-28
Classification: H04L

Abstract:
1. A method for bandwidth allocation over a hierarchical telecommunications network having a first hierarchical level of at least two trunks and a second hierarchical level of at least two flows in each trunk, the method comprising: forming a network including at least two edge devices coupled by at least two core devices, each said core device being without per flow admission control capability, over at least one physical link and a plurality of flows over each said link, each flow having a defined physical connection scheme; providing knowledge of global network topology and network utilization to a processor in said network outside of said core devices; allocating bandwidth to each of the trunks, by said processor utilizing said knowledge; and separately allocating to the flows in each said trunk, by a processor in the network outside of said core devices, said bandwidth allocated to that trunk; further comprising the steps of: before said step of allocating to said trunks, providing a sorted order of trunks by sorting links of all trunks according to congestion severity of each link; and said step of allocating bandwidth to said trunks includes allocating bandwidth to each trunk in said sorted order.