Systems and methods for controlling network-bound traffic
First Claim
Patent Images
1. A network device comprising:
- at least two input interfaces;
at least one output interface;
a link monitoring unit configured to;
monitor traffic flow received at the at least two input interfaces, andmonitor traffic flow transmitted from the at least one output interface; and
a flow control unit configured to;
detect congestion on the at least one output interface based on the monitoring of the at least one output interface,andselectively transmit a flow control signal to one or more upstream network devices, the one or more upstream network devices including network devices that are transmitting above a guaranteed service rate.
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Accused Products
Abstract
A network device controls the flow of traffic in a network, such as an Ethernet-based network. The network device detects congestion in the network and identifies at least one upstream device to which to send a flow control message, where the upstream device is a device that is transmitting above a predetermined level. The network device then transmits the flow control message to the identified upstream device. The flow control message instructs the identified upstream device to slow down transmissions to the network device.
30 Citations
25 Claims
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1. A network device comprising:
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at least two input interfaces; at least one output interface; a link monitoring unit configured to; monitor traffic flow received at the at least two input interfaces, and monitor traffic flow transmitted from the at least one output interface; and a flow control unit configured to; detect congestion on the at least one output interface based on the monitoring of the at least one output interface, and selectively transmit a flow control signal to one or more upstream network devices, the one or more upstream network devices including network devices that are transmitting above a guaranteed service rate. - View Dependent Claims (2, 3, 4)
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5. A method for controlling a flow of traffic in a network, the method, performed by a node in the network, comprising:
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detecting congestion in the network; and selectively transmitting flow control messages to one or more upstream nodes, the one or more upstream nodes including nodes that are transmitting above a guaranteed service rate. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12)
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13. A network device comprising:
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at least one output interface; a memory configured to store at least one control policy; a link monitoring unit configured to monitor traffic flow transmitted from the at least one output interface; and a flow control unit configured to; detect congestion on the at least one output interface based on the monitoring, identify one or more upstream network devices to which to transmit a flow control signal based on the at least one control policy, the control policy causing the flow control unit to identify upstream network devices that are transmitting above a predetermined threshold, and transmit the flow control signal to the one or more upstream network devices. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A method, performed by a network device, for controlling traffic flow in a network, comprising:
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detecting congestion in the network; identifying at least one upstream device to which to send a flow control message when congestion in the network is detected, the at least one upstream device being a device that is transmitting above a predetermined level; and transmitting the flow control message to the identified upstream device, the flow control message instructing the identified upstream device to slow down transmissions to the network device. - View Dependent Claims (20, 21, 22, 23, 24, 25)
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Specification