Some embodiments provide a method for a hardware forwarding element that includes multiple queues. The method receives a packet at a multi-stage processing pipeline of the hardware forwarding element. The method determines, at one of the stages of the processing pipeline, to modify a setting of a particular one of the queues. The method stores an identifier for the particular queue and instructions to modify the queue setting with data passed through the processing pipeline for the packet. The stored information is subsequently used by the hardware forwarding element to modify the queue setting.

Technologies for scheduling time-sensitive cyclical network traffic in real-time include an internet-of-things (IoT) device that includes at least one sensor for collecting sensor data. The IoT device is configured to store the collected sensor data in a data buffer, allocate a packet descriptor for the sensor data, and populate the allocated packet descriptor with a cyclic data port pointer indicative of a location of the data buffer. The IoT device is additionally configured to queue the packet descriptor into a media access control (MAC) unit transmit direct memory access (DMA) of the IoT device, fetch the sensor data, and packetize the fetched data to form a network packet. Further, the IoT device is configured to transmit the network packet to a target computing device based on a launch time, update the launch time, and requeue the packet descriptor into the MAC unit transmit DMA. Other embodiments are described herein.

The present invention relates to a method (100) for sending a data packet (430, 440) from a first communication unit (300) of a communication system via a transmission channel that is shared with at least one further communication unit (500). The method (100) comprises determining (110) a current access priority for the shared transmission channel by the first communication unit (300), wherein the current access priority is directed towards data currently transmitted over the transmission channel. The data packet (430, 440) is segmented (120) into packet segments (432, 434), wherein the packet segments (432, 434) have a priority value (410) which corresponds to a priority value (410) of the data packet (430, 440). The method also comprises sending (130) the packet segments (432, 434) from the first communication unit (300) via the shared transmission channel, wherein the packet segments (432, 434) are sent successively depending on the priority value and the current access priority.

Technologies for network packet processing include a computing device that receives incoming network packets. The computing device adds the incoming network packets to an input lockless shared ring, and then classifies the network packets. After classification, the computing device adds the network packets to multiple lockless shared traffic class rings, with each ring associated with a traffic class and output port. The computing device may allocate bandwidth between network packets active during a scheduling quantum in the traffic class rings associated with an output port, schedule the network packets in the traffic class rings for transmission, and then transmit the network packets in response to scheduling. The computing device may perform traffic class separation in parallel with bandwidth allocation and traffic scheduling. In some embodiments, the computing device may perform bandwidth allocation and/or traffic scheduling on each traffic class ring in parallel. Other embodiments are described and claimed.

In one embodiment, a method includes sending a first flow control signal to a first stage of transmit queues when a receive queue is in a congestion state. The method also includes sending a second flow control signal to a second stage of transmit queues different from the first stage of transmit queues when the receive queue is in the congestion state.

In one embodiment, a system comprises an interface to receive a plurality of packets; and a plurality of processor units to execute a plurality of transmission sub-interfaces, each transmission sub-interface to perform hierarchical quality of service (HQoS) scheduling on a distinct subset of the plurality of packets, wherein each transmission sub-interface is to schedule its subset of the plurality of packets for transmission by a network interface controller by assigning the packets of the subset to a plurality of transmission queues that each correspond to a distinct traffic class.

The present invention relates to a method for sending a data packet from a first communication unit of a communication system via a transmission channel that is shared with at least one further communication unit. The method comprises determining a current access priority for the shared transmission channel by the first communication unit, wherein the current access priority is directed towards data currently transmitted over the transmission channel. The data packet is segmented into packet segments, wherein the packet segments have a priority value which corresponds to a priority value of the data packet. The method also comprises sending the packet segments from the first communication unit via the shared transmission channel, wherein the packet segments are sent successively depending on the priority value and the current access priority.

Technologies for balancing throughput across input ports include a network switch. The network switch is to generate, for an arbiter unit in a first stage of a hierarchy of stages of arbiter units, turn data indicative of a set of turns in which to transfer packet data from devices connected to input ports of the arbiter unit. The network switch is also to transfer, with the arbiter unit, the packet data from the devices in the set of turns. Additionally, the network switch is to determine weight data indicative of the number of turns represented in the set and provide the weight data from the arbiter unit in the first stage to another arbiter unit in a subsequent stage to cause the arbiter unit in the subsequent stage to allocate a number of turns for the transfer of the packet data from the arbiter unit in the first stage.

The present disclosure relates to an SDN-based VPN traffic scheduling method and scheduling system. The method includes: configuring an SDN switching device to implement establishment of a communication link between a CE device and a PE device; performing VPN configuration on a controller; distributing, by the controller, a corresponding flow table to the SDN switching device, the flow table being used to translate a repeated address within a VPN to a non-conflict space address to distinguish different VPN traffic; configuring, by the controller, different traffic scheduling paths for the different VPN traffic according to a preset traffic scheduling strategy; and distributing, by the controller, the traffic scheduling paths to the PE device.

Some embodiments provide a method for a hardware forwarding element that includes multiple queues. The method receives a packet at a multi-stage processing pipeline of the hardware forwarding element. The method determines, at one of the stages of the processing pipeline, to modify a setting of a particular one of the queues. The method stores an identifier for the particular queue and instructions to modify the queue setting with data passed through the processing pipeline for the packet. The stored information is subsequently used by the hardware forwarding element to modify the queue setting.