Patent ID: 7545744
Filing Date: 2009-06-09
Classification: H04L,Y02D

Abstract:
1. In a communications network carrying a plurality of data flows through intermediate network elements (NEs) along routes, each said route connecting a source NE to a destination NE, a method for adjusting bandwidth among distributed source NEs, the method comprising: receiving a common maximum congestion value (CV) at each source NE from a respective destination NE, wherein the common maximum CV indicates a congestion amount of a most congested intermediate NE along the respective route; calculating a satisfaction value at each source NE based on an occupancy of a queue of each source NE; and adjusting a bandwidth of a group of said data flows transmitted through a common intermediate NE along said routes using said common maximum CV and said satisfaction value, wherein said adjusting comprises increasing the bandwidth of the group of data flows if the occupancy of the queue increases and decreasing the bandwidth of the group of data flows if the common maximum CV increases and calculating a new bandwidth BW wherein each of said source NEs adjusts the bandwidth of a group of said data flows transmitted through the common intermediate NE along said respective routes without communication between each of the source NEs.