Technologies for switching network traffic include a network switch. The network switch includes one or more processors and communication circuitry coupled to the one or more processors. The communication circuitry is capable of switching network traffic of multiple link layer protocols. Additionally, the network switch includes one or more memory devices storing instructions that, when executed, cause the network switch to receive, with the communication circuitry through an optical connection, network traffic to be forwarded, and determine a link layer protocol of the received network traffic. The instructions additionally cause the network switch to forward the network traffic as a function of the determined link layer protocol. Other embodiments are also described and claimed.

A method includes establishing communication between a first user device and a second user device using a first codec and filtering an input signal indicating an estimated unfiltered available bandwidth for the communications by applying a current filter including one of a first filter when the estimated unfiltered available bandwidth is less than a first threshold value or greater than a second threshold value or a second filter when the estimated unfiltered available bandwidth is between and including the first and second threshold values. The method includes adaptively switching the current filter as a function of the filtered input signal and the first and second threshold values. When the filtered input signal satisfies a channel bandwidth threshold for at least a predetermined period of time, the method includes switching from using the first codec to using a second codec for the communication between the first and second user devices.

Technologies for switching network traffic include a network switch. The network switch includes one or more processors and communication circuitry coupled to the one or more processors. The communication circuity is capable of switching network traffic of multiple link layer protocols. Additionally, the network switch includes one or more memory devices storing instructions that, when executed, cause the network switch to receive, with the communication circuitry through an optical connection, network traffic to be forwarded, and determine a link layer protocol of the received network traffic. The instructions additionally cause the network switch to forward the network traffic as a function of the determined link layer protocol. Other embodiments are also described and claimed.

Methods and devices for propagating transactions in a network of nodes, each node having one or more connections to other nodes. The method includes receiving a plurality of incoming transactions over a time period; combining the plurality of incoming transactions using network coding to generate a composite message; sending the composite message to one or more nodes in the network; and determining an adjusted time period based on an equilibrium constant parameter and a count of transactions in the plurality of incoming transactions received over the time periodk.

Techniques are disclosed for an adaptive and causal random linear network coding (AC-RLNC) with forward error correction (FEC) for a communication channel with delayed feedback. An example methodology implementing the techniques includes transmitting one or more coded packets in a communication channel, determining a channel behavior of the channel, and adaptively adjusting a transmission of a subsequent coded packet in the first channel based on the determined channel behavior. The communication channel may be a point-to-point communication channel between a sender and a receiver. The channel behavior may be determined based on feedback acknowledgements provided by the receiver. The subsequent coded packet may be a random linear combination of one or more information packets.

Techniques are disclosed for an adaptive and causal random linear network coding (AC-RLNC) with forward error correction (FEC) for a communication channel with delayed feedback. An example methodology implementing the techniques includes transmitting one or more coded packets in a communication channel, determining a channel behavior of the channel, and adaptively adjusting a transmission of a subsequent coded packet in the first channel based on the determined channel behavior. The communication channel may be a point-to-point communication channel between a sender and a receiver. The channel behavior may be determined based on feedback acknowledgements provided by the receiver. The subsequent coded packet may be a random linear combination of one or more information packets.

There is provided managing a data flow between a source node and a recipient node. A method comprises storing, at the source node, data frames into a buffer for transmission to the recipient node over a host-to-host protocol connection; measuring, at the source node, a connection quality of the host-to-host protocol connection; adjusting, at the source node, one or more target parameters of the transmission on the basis of the measured connection quality; transmitting, by the source node, data frames from the buffer to the recipient node on the basis of a Last-In, First-Out (LIFO) method and the adjusted one or more target parameters.

A method for managing adaptive streaming of an item of digital content within a multimedia stream reading terminal connected to a mobile communication network is disclosed. The item of digital content is associated with a description file for the item and includes a list of time segments of the item of content that are each associated with multiple encoding rates of the item of content. A maximum data volume to be consumed within the mobile communication network, as a data bucket, is allocated to the multimedia stream reading terminal. When the adaptive streaming of the item is launched, the method determines a data volume that would be consumed by the multimedia stream reading terminal as a result of streaming the time segments and selects a maximum encoding rate of the item authorized for the streaming on the basis of the consumed data volume associated therewith and of the data bucket.

A method for managing adaptive streaming of an item of digital content within a multimedia stream reading terminal connected to a mobile communication network is disclosed. The item of digital content is associated with a description file for the item and includes a list of time segments of the item of content that are each associated with multiple encoding rates of the item of content. A maximum data volume to be consumed within the mobile communication network, as a data bucket, is allocated to the multimedia stream reading terminal. When the adaptive streaming of the item is launched, the method determines a data volume that would be consumed by the multimedia stream reading terminal as a result of streaming the time segments and selects a maximum encoding rate of the item authorized for the streaming on the basis of the consumed data volume associated therewith and of the data bucket.

A method includes establishing digital communication between a first user device and a second user device using a first codec. The method also includes selecting, based on an input signal representing an estimated unfiltered available bandwidth for the digital communication satisfying a first filter selection threshold, a first filter of two or more filters, and filtering the input signal using the first filter. The method further includes determining that the filtered input signal satisfies a first channel bandwidth threshold and, in response to determining that the filtered input signal satisfies the channel bandwidth threshold, selecting a second codec different from the first codec for further digital communication between the first user device and the second user device.