Systems and method for routing data packets in ring network. A data packet being transmitted to a destination node may be received by a first structure at a first node. The first node may determine a number of hops the data packet will traverse as it is transmitted from the first node to the destination node and compare the determined number of hops to a threshold hop value to determine whether the number of hops is equal to or less than the threshold hop value. If the number of hops is greater than the threshold, the data packet may be transmitted to a dimension queuing structure for a first virtual channel within a second node, otherwise, the data packet may be transmitted to a dimension queuing structure for a second virtual channel or a turn queuing structure within the second node.

The present application discloses a long-distance transmission method for an Ethernet switch including a network switching module, an MCU module and a dial code module. The MCU module is connected to the network switching module and the dial code module. The dial code module is configured for providing two configuration inputs for a normal mode and a long-distance mode for user equipment. The MCU module is configured for monitoring a configuration input state of the dial code module in real time. When detecting that the dial code module is in the configuration input for the normal mode, the MCU module configures a network port of the network switching module to be in a self-negotiation mode. When detecting that the dial code module is in the configuration input state for the long-distance mode, the MCU module configures the network port of the network switching module to be in a 10 Mbps full-duplex mode and controls an amplitude of an output voltage of a network signal of the network switching module to increase. The network switching module is configured for negotiating a network link bandwidth of 10 Mbps and a full duplex mode between the network switching module and the user equipment for long-distance data transmission according to a configuration made by the MCU module when the dial code module is in the long-distance mode. The embodiments of the present application are applied to long-distance data transmission.

Techniques to operate a time division multiplexing (TDM) media access control (MAC) module include examples of facilitating use of shared resources allocated to ports of a network interface based on a time slot mechanism. The shared resources allocated to process packet data received or sent through the ports of the network interface.

A communication system wherein, in each node, data transmission blocks transmit transmission data, and data relay blocks relay the transmission data from another node in a prior stage as relay data. Output switching units switch between outputting the transmission data and outputting the relay data as output data.

Significantly optimized multi-stage networks with scheduling methods for faster scheduling of connections, useful in wide target applications, with VLSI layouts using only horizontal and vertical links to route large scale sub-integrated circuit blocks having inlet and outlet links, and laid out in an integrated circuit device in a two-dimensional grid arrangement of blocks are presented. The optimized multi-stage networks in each block employ several slices of rings of stages of switches with inlet and outlet links of sub-integrated circuit blocks connecting to rings from either left-hand side only, or from right-hand side only, or from both left-hand side and right-hand side; and employ multi-drop links where outlet links of cross links from switches in a stage of a ring in one sub-integrated circuit block are connected to either inlet links of switches in the another stage of a ring in the same or another sub-integrated circuit block.

A router fabric for switching real time broadcast video signals in a media processing network includes a logic device configured to route multiple channels of packetized video signals to another network device, a crossbar switch configured to be coupled to a plurality of input/output components and to switch video data of the multiple channels between the logic device and the plurality of input/output components in response to a control instruction, and a controller configured to map routing addresses for each video signal relative to the system clock, and to send the control instruction with the mapping to the crossbar switch and the logic device.

A router fabric for switching real time broadcast video signals in a media processing network includes a logic device configured to route multiple channels of packetized video signals to another network device, a crossbar switch configured to be coupled to a plurality of input/output components and to switch video data of the multiple channels between the logic device and the plurality of input/output components in response to a control instruction, and a controller configured to map routing addresses for each video signal relative to the system clock, and to send the control instruction with the mapping to the crossbar switch and the logic device.

A router fabric for switching real time broadcast video signals in a media processing network includes a logic device configured to route multiple channels of packetized video signals to another network device, a crossbar switch configured to be coupled to a plurality of input/output components and to switch video data of the multiple channels between the logic device and the plurality of input/output components in response to a control instruction, and a controller configured to map routing addresses for each video signal relative to the system clock, and to send the control instruction with the mapping to the crossbar switch and the logic device.

A router fabric for switching real time broadcast video signals in a media processing network includes a logic device configured to route multiple channels of packetized video signals to another network device, a crossbar switch configured to be coupled to a plurality of input/output components and to switch video data of the multiple channels between the logic device and the plurality of input/output components in response to a control instruction, and a controller configured to map routing addresses for each video signal relative to the system clock, and to send the control instruction with the mapping to the crossbar switch and the logic device.

In an example, a node in a network includes four ports coupled to respective nodes via respective links. A first port and a third port are coupled to respective nodes via respective near links and a second port and a fourth port are coupled to respective nodes via respective skip links. The node further includes at least one processor configured to send a first message in a first direction via the second port, and the first message includes a first destination address that corresponds to the second side of the node. The at least one processor is further configured to send a second message in a second direction via the fourth port, and the second message includes a second destination address that corresponds to the first side of the node.