Abstract: A control plane redundancy system includes a control system that is configured to provide a plurality of control plane functionalities to a network, a primary networking device that is configured to establish a first communication connection with the control system, and a secondary networking device that is configured to establish a second communication connection with the primary networking device and a third communication connection with the control system. The primary networking device can transmit to the control system a secondary networking device identifier that identifies the secondary networking device as a redundant networking device for the primary networking device when the first communication connection is unavailable. The secondary networking device can determine that the primary networking device is still active when the first communication connection is unavailable and, in response, establish a proxy communication connection between the primary networking device and the control system.

Abstract: Embodiments of the present invention include systems and methods for detecting and correcting mismatches between a flow's size and the path maximum transmission unit (PMTU) size. In embodiments, a controller is notified of a new flow's size and compares that to the route path's MTU size. If the controller recognizes a mismatch, it informs an information handling device, such as the first-hop router, to notify the sender of the correct path MTU size—thereby effectively and efficiency notifying the sender to correct the MTU size for that flow.

Abstract: Embodiments of the present invention include systems and methods for optimizing data flow in a network. The system for distributing data flow in a network includes a controller that receives, from a set of nodes coupled through the network, information of errors at the ports of each node through an input-output (IO) port. The controller compiles the information of errors to assign credits to links coupled to the ports; determines, based on the credits, how to distribute data flow in the network; generates a control signal for controlling the ports; and sends the control signal to the set of nodes through the IO port. The set of nodes controls the ports according to the control signal.

Abstract: A control plane redundancy system includes a control system that is configured to provide a plurality of control plane functionalities to a network, a primary networking device that is configured to establish a first communication connection with the control system, and a secondary networking device that is configured to establish a second communication connection with the primary networking device and a third communication connection with the control system. The primary networking device can transmit to the control system a secondary networking device identifier that identifies the secondary networking device as a redundant networking device for the primary networking device when the first communication connection is unavailable. The secondary networking device can determine that the primary networking device is still active when the first communication connection is unavailable and, in response, establish a proxy communication connection between the primary networking device and the control system.

Abstract: Embodiments of the present invention include systems and methods for optimizing data flow in a network. The system for distributing data flow in a network includes a controller that receives, from a set of nodes coupled through the network, information of errors at the ports of each node through an input-output (IO) port. The controller compiles the information of errors to assign credits to links coupled to the ports; determines, based on the credits, how to distribute data flow in the network; generates a control signal for controlling the ports; and sends the control signal to the set of nodes through the IO port. The set of nodes controls the ports according to the control signal.

Abstract: Embodiments of the present invention include systems and methods for detecting and correcting mismatches between a flow's size and the path maximum transmission unit (PMTU) size. In embodiments, a controller is notified of a new flow's size and compares that to the route path's MTU size. If the controller recognizes a mismatch, it informs an information handling device, such as the first-hop router, to notify the sender of the correct path MTU size—thereby effectively and efficiency notifying the sender to correct the MTU size for that flow.