If a communication apparatus is to transmit data to another communication apparatus and communication via a communication unit included in the other communication apparatus is not performable, whether or not to transmit a frame for causing a transition to a state where the communication via the communication unit included in the other communication apparatus is performable is selected based on an amount of data accumulated in a transmission queue in which the data is stored.

Electronic apparatus includes functional circuitry configured to respond to requests from a plurality of client devices, data storage circuitry configured as a plurality of client queues in which each respective client queue is configured to store pending requests from a respective client device, priority determination circuitry configured to assign a respective priority level to each respective client queue based at least in part on requests stored in the respective client queues, and arbiter circuitry configured to control access to the functional circuitry by the plurality of client devices. The arbiter circuitry is configured to monitor the priority level of each respective client queue, and control passage of requests from client queues to the functional circuitry based at least in part on a respective priority level assigned to each respective client queue. The priority determination circuitry includes fill level detector circuitry configured to determine a fill level of each client queue.

A queue management method, system, and recording medium include Selective Acknowledgments (SACK) examining to examine SACK blocks of a forwarder to selectively drop packets in a forward flow queue based on a reverse flow queue and MultiPath Transmission Control Protocol (MPTCP) examining configured to perform a first examining to examine multipath headers to recognize MPTCP flows based on a comparison between two subflows being a part of a same superflow and a second examining to examine the reverse flow queue to determine if redundant data has been sent based on a result of the first examining, a packet in the forward flow queue from a prior transmission being dropped from the forward flow queue sent from the forwarder to a receiver if a metadata of the packet does not match a metadata of an acknowledged packet in the reverse flow queue.

Example implementations relate to hybrid arbitration of requests for access to a shared pool of resources. An example implementation includes receiving a set of requests for access to the shared pool of resources. The requests may each be from any number of traffic classes. A traffic class may be selected according to turn-based arbitration logic. Additionally, a request from each traffic class of a subset of received requests may be selected. A request selected by the age-based arbitration logic and of the selected traffic class may be granted access to the shared pool of resources.

A network device includes a switching system for directing packets between ingress ports and egress ports of the network device. The network device also includes a switching system manager that makes an identification of a state change of a virtual output queue of the switching system; and performs an action set, based on the state change, to modify a latency of the virtual output queue to meet a predetermined latency in response to the identification.

A switch includes a plurality of ingress ports, a plurality of egress ports, and a plurality of buffers comprising a buffer coupled to each ingress port, egress port pair. An ingress port is to determine a plurality of potential egress ports for a packet. The ingress port is to select an egress port of the plurality of potential egress ports based on congestion of the corresponding buffers coupled to the ingress port and to each of the plurality of potential egress ports. The ingress port is to place the packet into the corresponding buffer coupled to the ingress port and the selected egress port.

In a network congestion handling method, a first network device determines a target port, where the target port is an egress port that is in a pre-congestion state or a congestion state. The first network device sends a first notification to at least one second network device. The at least one second network device is capable of sending, through at least two forwarding paths, a data flow to a host corresponding to the target port. The first notification includes information of a network device to which the target port belongs and information of the target port. The first notification can enable the at least one second network device to perform an operation of avoiding network congestion. The network congestion handling method can effectively alleviate network congestion and improve network bandwidth utilization.

A method for performing uplink transmission in a wireless LAN system according to an embodiment of the present specification may comprise the steps of: receiving, by an AP, a buffer state report frame from a reception STA coupled to the AP, wherein the buffer state report frame is a frame in which a first frame and a second frame are aggregated, the first frame including a first traffic identifier indicating a transmission priority of a first traffic buffered in the reception STA and first queue size information indicating the amount of the buffered first traffic, and the second frame including a second traffic identifier indicating a transmission priority of a second traffic buffered in the reception STA and second queue size information indicating the amount of the buffered second traffic; and transmitting, by the AP, a trigger frame for a plurality of user STAs participating in UL MU transmission on the basis of a buffer state report frame.

The technologies described herein are generally directed toward shedding processing loads associated with route updates. According to an embodiment, a system can comprise a processor and a memory that can enable operations facilitating performance of operations including facilitating receiving, from a second routing device via a network, a communication. The operations can further comprise, in response to a queueing delay being determined to be less than a threshold, queueing, in the queue, the communication for a third routing device selected according to a first selection process as being on a route to a destination routing device for the communication. Further, operations to, in response to the queueing delay of the queue being determined to be equal to or above the threshold, transmit the communication to a fourth routing device, with the fourth routing device being selected according to a second selection process different than the first selection process.

A network device adds a fixed value to a congestion threshold (CT) when a first period ends. Detects whether a difference obtained by subtracting average traffic load of a queue in the first period from average traffic load of the queue in a second period is greater than a target increase value, sets the CT based on a detection result when the second period ends, where the first period is previous to the second period; marks a received packet when a quantity of packets buffered in the queue is greater than the CT, enqueues the marked packet and sends the marked packet to a receiving device.