A hypervisor executed by a processing device retrieves a plurality of packets from a network device and forwards the packets to one or more virtual machines. The hypervisor determines a number of the plurality of packets successfully received by the one or more virtual machines, and when a function of the number is below a first threshold, decreases a priority for the network device associated with handling incoming packets.

Systems and methods are disclosed for detection of a selected signal pattern, such as a servo sector preamble, and for frequency offset determination. A circuit may be configured to divide a signal into detection windows of a selected size, and sample the signal a selected number of times within each detection window. The circuit may then determine an error value for each detection window based on values of the samples for each detection window, and determine the preamble is detected when a threshold number of most-recently sampled detection windows have error values below a threshold value. The circuit may then organize the sample values corresponding to the preamble into groups, and calculate phase estimates representing a phase at which the groups were sampled. The circuit may determine a frequency offset based on the phase estimates, and modulate the sampling frequency according to the frequency offset.

Embodiments of the present application relate to a method, device, and system for flow control in connection with one or more access requests. The method includes detecting one or more access requests communicated from one or more access terminals, the one or more access requests associated with accessing a service application system, obtaining flow-limiting condition data, determining a new flow control threshold value based at least in part on the flow-limiting condition data, and updating a current flow control threshold value based at least in part on the new flow control threshold value.

Described herein is a system and method for managing network flow state for ongoing flows (connectionless protocol flows and connection-based protocol flows) between client device(s) and a virtual machine using a flow collection data structure (e.g. hash table) having a predefined maximum quantity of ongoing flows that can be managed. When it is determined that the flow collection data structure is managing greater than an acceptable threshold of connectionless protocol flows, at a dynamically adjustable frequency, flow state for more connectionless protocol flow(s) having an unexpired time-to-live are expired. The frequency can be adjusted based upon a rate at which new flows are being created and/or a rate at which flows are being deleted. Also described herein is a system and method in which, at a particular frequency, only a portion of the flows in the flow collection data structure are evaluated in order to minimize impact on packet processing.

A timer is associated with a packet of a flow from a VM at an application executing in conjunction with a vSwitch in a host system, using a processor assigned to the vSwitch in the host system. At the application, using a counter, a number of packets of the flow that are received and acknowledged in response packets is counted, the response packets being received from a receiver of the flow. At the application, using a period measured by the timer and the number of received packets acknowledged as counted by the counter, a CWND value is computed. The CWND value is applied to the flow at the vSwitch such that the vSwitch transmits, from the flow to a network, only a number of packets up to the CWND value.

An example method is provided in one example embodiment and may include receiving traffic associated with at least one of a mobile network and a Gi-Local Area Network (Gi-LAN), wherein the traffic comprises one or more packets; determining a classification of the traffic to a service chain, wherein the service chain comprises one or more service functions associated at least one of one or more mobile network services and one or more Gi-LAN services; routing the traffic through the service chain; and routing the traffic to a network using one of a plurality of egress interfaces, wherein each egress interface of the plurality of egress interfaces is associated with at least one of the one or more mobile network services and the one or more Gi-LAN services.

This application discloses a communications method and related communications apparatus and system. The method includes recovering, by a first node, when detecting that a first packet is lost, the first packet according to a local recovery mechanism. The first packet is a packet obtained based on a packet sent by at least one first terminal to at least one second terminal, and the first node is a node on a network path between each first terminal and a second terminal communicating with the first terminal. The method further includes adding a first identification information related to local recovery, and sending the first packet. This application can reduce a transmission delay and improve transmission efficiency.

In some embodiments, an amount of aggregated bandwidth consumption for a set of computing devices on a network may be determined for a first time period. An amount of available bandwidth on the network may be determined for the first time period. A ratio of the amount of aggregated bandwidth consumption to the amount of available bandwidth may be determined. A bandwidth threshold may be determined based on the ratio. A rate limit for a first computing device (of the set of computing devices) may be set based on a comparison of the bandwidth threshold to bandwidth consumption of the first computing device.

Provided is a method for generating a packet by a user equipment (UE). The method may include: receiving a threshold for packet duplication, from a base station; when a number of duplicated packets for a certain time does not satisfy the threshold for the packet duplication, generating a second packet by duplicating a first packet; and transmitting the generated second packet.

A network parameter configuration method, where in the method, network running data corresponding to a first period is input into a prediction model, so that the prediction model predicts, based on the input network running data, a value of a parameter of a network device in a second period, and the parameter of the network device in the second period is configured to the value predicted by the prediction model.