Abstract: A transit device receives a target token request sent by a data transmit end, and sends the target token request to a data receive end. The data receive end may determine, based on the target token request, a target token packet corresponding to the target token request, and then send the target token packet to the transit device based on a priority identifier. The transit device determines a sending rate of the token packet based on a link bandwidth of the current device, a preset packet length of a token packet, and a preset packet length of the data packet, and sends the target token packet to the data transmit end based on the priority identifier and the sending rate of the token packet. The transit device may send the target data packet to the data receive end.

Abstract: A transit device receives a target token request sent by a data transmit end, and sends the target token request to a data receive end. The data receive end may determine, based on the target token request, a target token packet corresponding to the target token request, and then send the target token packet to the transit device based on a priority identifier. The transit device determines a sending rate of the token packet based on a link bandwidth of the current device, a preset packet length of a token packet, and a preset packet length of the data packet, and sends the target token packet to the data transmit end based on the priority identifier and the sending rate of the token packet. The transit device may send the target data packet to the data receive end.

Abstract: A collaborative on-line simulation system and method to provide automated and pro-active control functions for computer network. In a wide area network, clients communicate through one or several nodes (108). Each node (108) contains routers which include control plane (202) and data plane (204). Collaborative on-line simulators (206) are interfaced to the network nodes (108) and continuously monitor the surrounding network conditions, communicate with other simulators and execute collaborative on-line simulation. Based on the simulation results, the on-line simulators (206) continuously tune selected network parameters to a more efficient operation point to fit the current network conditions.

Abstract: A collaborative on-line simulation system and method to provide automated and pro-active control functions for computer network. In a wide area network, clients communicate through one or several nodes (108). Each node (108) contains routers which include control plane (202) and data plane (204). Collaborative on-line simulators (206) are interfaced to the network nodes (108) and continuously monitor the surrounding network conditions, communicate with other simulators and execute collaborative on-line simulation. Based on the simulation results, the on-line simulators (206) continuously tune selected network parameters to a more efficient operation point to fit the current network conditions.

Abstract: A data collection system includes a plurality of node host computers. Each node host computer has a node manager, at least one processing node and a data manager. The data manager delivers network records between processing nodes. The processing nodes include an input queue and an output queue. In some embodiments at least one of the nodes has a plurality of output queues. The processing nodes are arranged in configurable chains of processing nodes. The chains are disposed across one or more of the plurality of host computers to process network records. The at least one processing node having the plurality of output queues can couple records from the plurality of output queues to input queues of corresponding processing nodes, based on a selected distribution method and/or selected content of records. The system can include an administrative client that displays a graphical user interface and an administrative server communicating with the node host computers and the administrative client.