Patent ID: 9674092
Date: 2017-06-06
CPC Classifications: H04L

Claim:
1. A method for abating network congestion in a network of nodes connected via a network interconnect having network devices, each node connected to a network device that is connected to a local controller, each of a plurality of the local controllers being connected to a supervisory controller via an independent network connection that is independent of the network interconnect such that packets sent between nodes are routed through the network and are not routed through the local controllers, the method comprising: determining at the supervisory controller whether the network is congested based on information of the network devices that is provided to the local controllers and received from the local controllers via the independent network connection; upon determining that the network is congested, sending from the supervisory controller to each local controller via the independent network connection an indication that the network is congested; and upon receiving at a local controller an indication that the network is congested, limiting a rate at which packets are injected into the network by a node connected to the network device to which the local controller is connected by the local controller signaling the network device to limit the infection rate at which the node injects packets into the network.