摘要:
An apparatus and a method for managing network flow congestion are provided. The method for managing network flow congestion includes: receiving a plurality of packets; identifying whether each packet belongs to a predetermined protocol; distinguishing a plurality of connections of the packets belonged to the predetermined protocol; monitoring a buffer usage of each different connections; and performing a congestion check procedure on the currently monitored connection. In the congestion check procedure, when the buffer usage of the currently monitored connection exceeds a threshold, a congestion processing procedure is triggered.
摘要:
A method for balancing load among firewall security devices (FSDs) is provided. According to one embodiment, a switching device performs adaptive load balancing among cluster units of an HA cluster of firewall security devices. A load balancing (LB) function implemented by the switching device is configured based on information received from a network administrator. A LB table is maintained that forms associations between hash values output by the LB function and corresponding ports of the switching device to which the cluster units are coupled. Network traffic received by the switching device is directed to appropriate cluster units based on the LB function and the LB table. A traffic load on each of the cluster units is monitored. Responsive to a deviation from a predefined ideal traffic distribution, an attempt is made to improve performance of the HA cluster by dynamically adjusting the LB balancing table to address the deviation.
摘要:
Embodiments relate to classifying network streams and regulating behavior of the streams based on their respective classes. One technique for managing streams involves analyzing applications, obtaining indicia of features of the applications, and using those features to infer classes to which streams of the applications may be assigned. Another technique involves deploying beacon nodes at the edge of a network. The beacon nodes inform a stream manager about network conditions such as latencies with regard to network boundaries or regions. Another embodiment for facilitating management of streams involves a subscription service for UDP applications. A UDP application may subscribe to the service, which may be provided by an operating system hosting the application. Events are published to any subscribed UDP applications to inform the UDP applications of changes in networking conditions. The UDP applications, in turn, may adapt their internal transmission control logic.
摘要:
The objective of the invention is to enable sharing, between layers in a network in which the layers are used to perform communications, resource information and information required for using paths. A network control system includes: a lower layer information storage unit, a lower layer control information conversion unit, an upper layer information storage unit, an upper layer control information conversion unit, an integrated layer information storage unit and a layer integration unit. The layer integration unit integrates, as virtual links, the information of flows, which are representative of communications among terminals in the lower layer, with the network information of the upper layer, thereby constituting the network information of the integrated layer. Further, the layer integration unit performs reciprocal exchanges of network information among the integrated layer information storage unit, the lower layer information storage unit and the upper layer information storage unit, said reciprocal exchanges including a process of giving, as the attribute information of the ports of the upper layer, label information required for using the virtual link provided by the lower layer.
摘要:
A method for balancing load among firewall security devices (FSDs) is provided. According to one embodiment, a switching device performs adaptive load balancing among cluster units of an HA cluster of firewall security devices. A load balancing (LB) function implemented by the switching device is configured based on information received from a network administrator. A LB table is maintained that forms associations between hash values output by the LB function and corresponding ports of the switching device to which the cluster units are coupled. Network traffic received by the switching device is directed to appropriate cluster units based on the LB function and the LB table. A traffic load on each of the cluster units is monitored. Responsive to a deviation from a predefined ideal traffic distribution, an attempt is made to improve performance of the HA cluster by dynamically adjusting the LB balancing table to address the deviation.
摘要:
A switch receiving Ethernet packets is disclosed, including TCP packets and/or non-TCP packets. The Ethernet packets are forwarded to at least two ports by forwarding each TCP Present application relates to a switch receiving Ethernet packets, including TCP packets and/or non-TCP packets, and forwarding the Ethernet packets to at least two ports by forwarding each of the TCP packets to any one of the at least two ports and forwarding each stream of non-TCP packets to one corresponding port of the at least two ports.
摘要:
A method for calculating a mean opinion score (MOS) during an ongoing Voice over Internet Protocol (VoIP) call is provided. The method may include determining a time delay between a VoIP source and a VoIP destination connected by a communications network. A start recording message is sent from the VoIP source to the VoIP destination. A first recorded call sample from the VoIP source and a second recorded call sample from the VoIP destination are generated, whereby the first and the second recorded call sample are generated with a recording delay value corresponding the determined time delay for synchronizing the first and the second recorded call sample. Using an intrusive call quality measurement, a first MOS value is calculated based on the first and the second recorded call sample. Using a non-intrusive call quality measurement, a second MOS value is calculated based on the first MOS value.
摘要:
A device establishes a first transmission control protocol (TCP) connection with a client device associated with a wireless network, and establishes a second TCP connection with a server device associated with the wireless network. The device also provides a first TCP window size to the client device via the first TCP connection, and provides a second TCP window size to the server device via the second TCP connection, where the first TCP window size is different than the second TCP window size.
摘要:
A method for queue management in a packet-switched network including at an intermediate node receiving first packets belonging to a first class associated with a first queue management mechanism and second packets belonging to a second class associated with a second queue management mechanism; marking or dropping of the first packets in accordance with the first queue management mechanism and marking or dropping of the second packets in accordance with the second queue management mechanism; and coupling the marking or dropping of the second packets to the marking or dropping of the first packets.
摘要:
Embodiments of systems and methods for data transfer are presented herein. Specifically, embodiments of such a data transfer methodology may utilize one or more transmission channels for the transmission of the data to be transferred. In addition, a control channel in a different protocol than the transmission channels may be utilized to transmit control information between the sender and recipient. The rate at which data is sent on the transmission channels may be adjusted or the transmission of data on the transmission channel prioritized.