Apparatuses, methods and storage medium associated with routing data in a switch are provided. In embodiments, the switch may include route lookup circuitry determine a first set of output ports that are available to send a data packet to a destination node. The lookup circuitry may further select, based on respective congestion levels associated with the first set of output ports, a plurality of output ports for a second set of output ports from the first set of output ports. An input queue of the switch may buffer the data packet and route information associated with the second set of output ports. The switch may further include route selection circuitry to select a destination output port from the second set of output ports, based on updated congestion levels associated with the output ports of the second set of output ports. Other embodiments may be described and/or claimed.

A method for obtaining a port path and an apparatus to improve a network capacity, where the method includes receiving, by a controller, a request message from a first server, where the request message requests port path information, and the port path information includes a port that a logical link from the first server to a second server passes through, obtaining, by the controller, a first absolute port path (APP) and a second APP according to network topology information, where the first APP includes a port that a logical link from a root node to the first server passes through, and the second APP includes a port that a logical link from the root node to the second server passes through, obtaining, by the controller, the port path information according to the first APP and the second APP, and sending the port path information to the first server.

Methods and systems for a more efficient transmission of network traffic are provided. According to one embodiment, presence of outbound payload data, distributed across a first and second payload buffer, within a user memory space of a network device that has been generated by a user process is determined by a bus/memory interface or a network interface unit. The payload data is fetched by performing direct virtual memory addressing of the user memory space including mapping virtual addresses of the payload buffers to corresponding physical addresses, including: (i) when the payload buffers are noncontiguous, then retrieving the outbound payload data with reference to multiple buffer descriptors having starting virtual addresses of the payload buffers and (ii) when they are contiguous, then retrieving the outbound payload data with reference to a single buffer descriptor. The outbound payload data is then segmented across one or more TCP packets.

A switch for transmitting data packets between at least one source node and at least one target node is provided. The switch includes a storage unit, a control unit, at least one receiving port and at least one transmitting port. The storage unit includes a plurality of storage blocks and configured to cache the data packets. The control unit is configured to manage the storage blocks. The switch receives and caches the data packets transmitted from the at least one source node via the receiving port and transmits the cached data packets to the at least one target node via the transmitting port. A data accessing method adapted for the switch is also provided.

A system for communicating a multi-destination packet through a network switch fabric is described. The system receives the multi-destination packet at an input port of the network switch fabric, wherein the multi-destination packet is directed to multiple output ports, and wherein the network switch fabric has a virtual output queue (VOQ) architecture, wherein each input port maintains a separate VOQ for each output port. The system sends the multi-destination packet by inserting the multi-destination packet into VOQs associated with the multiple output ports. While inserting the multi-destination packet in each VOQ, if the VOQ is empty, the system inserts the multi-destination packet at a head of the VOQ. Otherwise, if the VOQ is not empty and if the VOQ contains an end of a last complete packet received by the VOQ, the system inserts the multi-destination packet into the VOQ at the end of the last complete packet.

A controller network device, in a network control layer of a service provider network, receives command input for providing services over a service provider network and provides, to a forwarding network device, a first control communication. The first control communication includes an initial output to implement the command input. The controller network device provides, to peer controller network devices, a verification request to verify the initial output of the first control communication; receives, from the peer controller network devices, responses to the verification request that each include a calculated output based on the command input; and applies a verification schema to determine a majority output from the responses. The controller network device compares the initial output to the majority output and sends a second control communication, with a verified output indication, to implement the command input when the initial output matches the majority output.

The system and method of utilizing frequency waterfilling and implicit coordination to mitigate signal jamming in Link 16 systems. The system and method of utilizing frequency waterfilling for Link 16 includes updates to both software and firmware. The frequency waterfilling approach for Link 16 modifies the process by which data bits are allocated to hops based on an assessment of hops affected by jamming, thus avoiding portions of the spectrum occupied by a jammer.

A method including: receiving, at a video conferencing device, a packet of a video conferencing media stream, the video conferencing device including a processor; determining, by the video conferencing device, whether a length of the packet is sufficiently long to contain media; sending a request to a Look-up Table memory using the media stream ID as an input value while in parallel determining, with the processor, whether the packet is a valid media packet; in response to receiving a destination address in a media processing network from the Look-up Table memory and determining that the packet is a valid media packet, modifying, by the video conferencing device, a header of the packet with the destination address received from the Look-up Table memory; and transmitting, by the video conferencing device, the packet to the modified destination address.

Disclosed is a fast recovery method for a Spanning Tree Protocol (STP) based backup port, and the method includes: it is detected that a failure occurs on a port of an STP-based device; and it is determined whether there is a backup port taking a failed port as a master port, and when it is determined that there is such a backup port, said backup port is changed to a master port; further disclosed is a fast recovery device for an STP based backup port. By means of the technical solutions of the disclosure, it is possible to shorten significantly recovery time of a backup port, and improve greatly performance of link recovery.

Provided are an HQoS scheduling method and device. A received uplink data packet is encapsulated and stored in a queue in uplink direction, and an uplink queue scheduling component is requested to perform scheduling. In this manner, HQoS scheduling in the uplink direction is implemented, and a personalized demand of a user can be met by scheduling uplink data, to carry out more flexible function customization. According to the method and device, the data packet may be further sent to a downlink direction after the HQoS scheduling in the uplink direction is completed, and the HQoS scheduling can be performed on the data in the downlink direction, so that the HQoS scheduling is respectively performed on the data in both the uplink direction and the downlink direction; in this manner, the real bidirectional HQoS scheduling control is implemented, and QoS of the user service can be guaranteed in both directions.