An example method is provided and includes determining a time shift comprising a difference in time between a packet count observation at a transmit element and a corresponding packet count observation at a receive element connected to the transmit element via a link; obtaining a first packet count from the transmit element and a second packet count from the receive element; and adjusting at least one of the first packet count and the second packet count to compensate for the time shift. The method further includes comparing the adjusted first and second packet counts to determine whether there is a discrepancy between the counts and if a discrepancy is detected between the counts, adjusting a rate at which the transmit element sends packets to the receive element.

Systems and methods of performing traffic shaping in a network device are provided. A network interface driver of the network device can store descriptors associated with packets received from multiple streams in a transmission queue in a first order. The network interface driver can transfer the descriptors to a traffic shaping module. In response to determining that a packet from a first stream, among the received packets, has been successfully transmitted by a network card, the network interface driver can communicate a packet transmission completion message corresponding to the packet to a software application that has awaited receipt of a packet transmission completion message before forwarding additional data packets from the first stream to the network interface driver. The network interface driver can communicate packet transmission completion messages corresponding to the packets received from the multiple streams to the software application in a second order, different from the first order.

A method includes a proxy device receiving from a source device a request to establish a flow to a destination device; generating, based on the request, a meta-packet that indicates that the flow to the destination device is to be proxied; determining whether a pre-established flow connecting the proxy device to another proxy device that leads toward the destination device exists; sending the meta-packet on the pre-established flow, when it is determined that the pre-established flow exists; receiving by the other proxy device, the meta-packet, and establishing the flow to the destination device based on the meta-packet, where the proxy devices assign one or more of a source address, a source port, a destination address, or a destination port, associated with the source device and the destination device, to the pre-established flow.

A method for transmitting a data stream containing a second ordered sequence of numerical values, which sequence is determined from a first ordered sequence, a second succession of consecutive numerical values of the second sequence being obtained from a corresponding succession of consecutive numerical values of the first sequence. The method estimates a load value representative of a current load on the network, to determine, depending on the estimated value, a second succession to be transmitted in a predefined time interval following the current time, the second succession being a corresponding first succession of the first sequence or a succession modified by applying a selection law to the bits of the first succession and to transmit the second succession and, in case of transmission of a modified succession, a processing indicator signaling a succession modification.

A gateway device includes a first communication system, a second communication system and a network processor. The first communication system and the network processor communicate first network signals therebetween. The first network signals comprising first higher priority network signals and first lower priority network signals. The second communicate system and the network processor communicating second network signals therebetween. The second network signals comprising second higher priority network signals and second lower priority network signals. The network processor communicates a first congestion notification request signal to the first communication system. The first communication system modifies the first lower priority network signals at the first communication system in response to the first congestion notification signal to form first modified network signals and communicates the first modified network signals from the gateway device.

In various embodiments, a network emulation application emulates network conditions when testing a software application. In response to a request to emulate a first set of network conditions for a first client device that is executing the software application, causing a kernel to implement a first pipeline and to automatically input network traffic associated with the first client device to the first pipeline instead of a default bridge. In response to a request to emulate a second set of network conditions for a second client device that is executing the software application, causing the kernel to implement a second pipeline and to automatically input network traffic associated with the second client device to the second pipeline instead of the default bridge. Each of the pipelines perform one or more traffic shaping operations on at least a subset of the network traffic input into the pipeline.

Techniques are provided for managing a user space protocol stack are disclosed herein. A nexus in a kernel space can receive a packet from a packet pool, and extract information from the packet to generate a flow key indicating a particular flow for the packet. The nexus can further look up the flow key in a flow table to determine whether there is an existing flow key stored in the flow table matching the flow key of the packet, and store the packet into a batch of packets of the existing flow when the existing flow key matches the flow key of the packet. When a release condition being met, the nexus can release the batch of packets of the existing flow to a user space protocol stack within a user space application through a channel communicatively coupled to the nexus and the user space protocol stack.

A system and method for Quality of Experience (QoE) management on a network. The method including: determining a set of service categories for an operator's traffic, wherein at least one of the service categories is video streaming; mapping a plurality of traffic flows to each of the service categories; determining a target and minimum intent for each of the service categories; measuring a score and bandwidth use for each of the service category; determining whether each of the service categories are reaching an associated minimum bandwidth intent; if the minimum bandwidth intent is not being reached for at least one service category, adjusting the minimum intent for at least one of the service categories; allocating a bandwidth per service category based on the adjusted minimum intent; and shaping the traffic flow to the allocated bandwidth; otherwise allowing the traffic flow to continue with a current bandwidth allocation.

A method of distributing throughput intelligently amongst a plurality of applications residing at a User Equipment (UE) is provided. The method includes receiving, at the UE, recommended bit rate (RBR) information from a network node, the RBR information indicating a throughput value allocated to the UE, allocating a codec rate from the allocated throughput value to at least one voice over internet protocol (VoIP) application from the plurality of applications, and allocating, from remaining throughput value of the allocated throughput value, a bit rate to each of a plurality of non-VoIP applications from the plurality of applications, based on corresponding throughput requirement associated with the plurality of non-VoIP applications.

In one embodiment, a method includes determining, by a first network component, a sender shaper drop value based on the following: a maximum sequence number; a minimum sequence number; and a sender sequence counter number associated with the first network component. The method also includes determining, by the first network component, a wide area network (WAN) link drop value based on the sender sequence counter number associated with the first network component and a receiver sequence counter number associated with a second network component. The method further includes determining, by the first network component, whether to adjust a sender shaper rate based on the sender shaper drop value and the WAN link drop value.