An ultra-high speed electronic communications device includes: a network communications interface; a memory; and one or more processing units, communicatively coupled to the memory and the network communications interface, wherein the memory stores instructions configured to cause the one or more processing units to: receive a data packet using the network communications interface; determine a classification of the data packet based, at least in part, on a plurality of factors, wherein the plurality of factors comprises a rate at which the data packet was received and a time at which the data packet was received; select, based at least in part, on the classification, an operation from a plurality of operations, wherein the plurality of operations comprises a cut-through operation and a store-and-forward operation; and perform the selected operation.

A quantum measurement and control (QMC) system is provided. The QMC system a measurement and control (MC) network including a plurality of measurement and control subgroups (MCSGs), the each MCSG being configured to perform MC on a physical quantum bit (qubit) group, the each MCSG including a measurement unit and a plurality of control units, and each of the plurality of control units being configured to control one of the plurality of physical qubits, the measurement unit being configured to measure a quantum state of the one of the plurality of physical qubits, and transmit a control instruction to the each of the plurality of control units based on the quantum state as measured, and the each of the plurality of control units being configured to control the one of the plurality of physical qubits according to the control instruction.

A network device for a communications network includes a port configured to transmit data to the network at a maximum transmit data rate. The device also includes a transmit buffer configured to buffer data units that are ready for transmission to the network, and a packet buffer configured to buffer data units before the data units are ready for transmission. The packet buffer is configured to output data units at a maximum packet buffer transmission rate faster than the maximum transmit data rate. The device includes a rate controller configured to control a transmission rate of data from the packet buffer to the transmit buffer so that averaged over a period, the transmission rate from the packet buffer to the transmit buffer is at most equal to the maximum transmit data rate, while allowing the transmission rate, at one or more time intervals, to exceed the maximum transmit data rate.

A transfer device includes an output-port decision unit to decide, on the basis of storage information stored in a frame input, an output port from which the frame is output from among a plurality of ports, an allocation unit to associate an input port to which the frame is input with an output port from which a frame which is transferred by a cut-through method is output on a one-to-one basis, and allocate a first frame to a first pathway transferring by the cut-through method and allocate a second frame to a second pathway transferring by a store-and-forward method on the basis of type information of an input port to which a frame has been input, class information of the frame, and the output port decided by the output-port decision unit, and an IET-output control unit to output the first frame from the output port, decide whether to divide the second frame on the basis of the class information of the second frame, and output the second frame from the output port on the basis of decision. Therefore, the transfer device can realize an IET low-latency transfer function by control simpler than that in the conventional transfer devices.

A broker system dynamically adjusts data processing techniques used by a network gateway for forwarding data over a network from a client system to an exchange system based on a switch mode parameter. The broker system dynamically adjusts the network gateway from using an error-propagating data processing technique (e.g. cut-through switching) to a non-error-propagating data processing technique (e.g. store and forward switching) based on the switch mode parameter. In particular, the broker system may adjust the network gateway when a count of unsuccessfully validated protocol data units meets a threshold specified by the switch mode parameter. While using the error-propagating technique, the broker system may modify a portion of the data protocol unit corresponding to a transport layer of a network protocol used by the network when a protocol data unit is unsuccessfully validated.

Cut-through frame transfer or store-and-forward frame transfer of a frame in an network switch is disclosed. A frame is received from an input port of the switch. A time period in a cycle time when the frame is received and a stream identification of the frame is determined. One of the cut-through frame transfer and the store-and-forward frame transfer of the frame is performed based on the time period in the cycle time when the frame was received and the stream identification.

A network device is configured to route an ingress packet based on its L2 header. In some configurations the ingress packet is routed based only on the destination MAC (DMAC) address in the L2 header, which allows the network device to begin routing as soon as the DMAC is received. The DMAC can be used in a table look up operation to identify routing actions for a nexthop. An egress packet is produced from the ingress packet using the routing actions. The egress packet is then sent on an egress port specified in the routing actions.

A Media Access Control address (MAC) learning method includes: parsing out packet header and packet verification parameter of a packet from an input/output port; generating a port identifier corresponding to the input/output port; starting first-stage procedure for the packet header; and starting second-stage procedure for the packet verification parameter. The first-stage procedure includes: performing, according to a MAC forwarding table and the port identifier, learning processing for source MAC address of the packet header to generate learning result; generating status parameter according to the learning result; and associating and storing the status parameter, the port identifier, and a hash address corresponding to the source MAC address into a memory. The second-stage procedure includes: obtaining the status parameter and the hash address from the memory according to the port identifier; and updating the MAC forwarding table according to the packet verification parameter, the obtained status parameter, and the obtained hash address.

In one embodiment, an apparatus includes a switch core that has a multi-stage switch fabric. A first set of peripheral processing devices coupled to the multi-stage switch fabric by a set of connections that have a protocol. Each peripheral processing device from the first set of peripheral processing devices is a storage node that has virtualized resources. The virtualized resources of the first set of peripheral processing devices collectively define a virtual storage resource interconnected by the switch core. A second set of peripheral processing devices coupled to the multi-stage switch fabric by a set of connections that have the protocol. Each peripheral processing device from the first set of peripheral processing devices is a compute node that has virtualized resources. The virtualized resources of the second set of peripheral processing devices collectively define a virtual compute resource interconnected by the switch core.

An ultra-high speed electronic communications device includes: a network communications interface; a memory; and one or more processing units, communicatively coupled to the memory and the network communications interface, wherein the memory stores instructions configured to cause the one or more processing units to: receive a data packet using the network communications interface; determine a classification of the data packet based, at least in part, on a plurality of factors, wherein the plurality of factors comprises a rate at which the data packet was received and a time at which the data packet was received; select, based at least in part, on the classification, an operation from a plurality of operations, wherein the plurality of operations comprises a cut-through operation and a store-and-forward operation; and perform the selected operation.