A network system for a data center is described in which a switch fabric may provide full mesh interconnectivity such that any servers may communicate packet data to any other of the servers using any of a number of parallel data paths. Moreover, according to the techniques described herein, edge-positioned access nodes, optical permutation devices and core switches of the switch fabric may be configured and arranged in a way such that the parallel data paths provide single L2/L3 hop, full mesh interconnections between any pairwise combination of the access nodes, even in massive data centers having tens of thousands of servers. The plurality of optical permutation devices permute communications across the optical ports based on wavelength so as to provide, in some cases, full-mesh optical connectivity between edge-facing ports and core-facing ports.

A network system for a data center is described in which a switch fabric may provide full mesh interconnectivity such that any servers may communicate packet data to any other of the servers using any of a number of parallel data paths. Moreover, according to the techniques described herein, edge-positioned access nodes, optical permutation devices and core switches of the switch fabric may be configured and arranged in a way such that the parallel data paths provide single L2/L3 hop, full mesh interconnections between any pairwise combination of the access nodes, even in massive data centers having tens of thousands of servers. The plurality of optical permutation devices permute communications across the optical ports based on wavelength so as to provide, in some cases, full-mesh optical connectivity between edge-facing ports and core-facing ports.

A network system for a data center is described in which an access node sprays a data flow of packets over a logical tunnel to another access node. In one example, a method comprises establishing, by a plurality of access nodes, a logical tunnel over a plurality of data paths across a switch fabric between a source access node and a destination access node included within the plurality of access nodes, wherein the source access node is coupled to a source network device; and spraying, by the source access node, a data flow of packets over the logical tunnel to the destination access node, wherein the source access node receives the data flow of packets from the source network device, and wherein spraying the data flow of packets includes directing each of the packets within the data flow to a least loaded data path.

A network system for a data center is described in which a switch fabric provides full mesh interconnectivity such that any servers may communicate packet data to any other of the servers using any of a number of parallel data paths. Moreover, according to the techniques described herein, edge-positioned access nodes, optical permutation devices and core switches of the switch fabric may be configured and arranged in a way such that the parallel data paths provide single L2/L3 hop, full mesh interconnections between any pairwise combination of the access nodes, even in massive data centers having tens of thousands of servers.

A network system for a data center is described in which a switch fabric may provide full mesh interconnectivity such that any servers may communicate packet data to any other of the servers using any of a number of parallel data paths. Moreover, according to the techniques described herein, edge-positioned access nodes, optical permutation devices and core switches of the switch fabric may be configured and arranged in a way such that the parallel data paths provide single L2/L3 hop, full mesh interconnections between any pairwise combination of the access nodes, even in massive data centers having tens of thousands of servers. The plurality of optical permutation devices permute communications across the optical ports based on wavelength so as to provide, in some cases, full-mesh optical connectivity between edge-facing ports and core-facing ports.

The time taken from an occurrence of an anomaly related to network connection to a change of a transmission path of a frame is shortened as compared with a conventional art. Communication system includes controller and a plurality of slaves each including third input and output port and fourth input and output port. Slave includes detector and slave transmission control part. Detector detects an anomaly related to connection of third input and output port and an anomaly related to connection of fourth input and output port. When detector detects the anomaly, slave transmission control part attempts to transmit a disconnection node notification frame indicating that a change in a connection state is detected from third input and output port and fourth input and output port. The controller changes the transmission path of the normal frame in a case of receiving the disconnection node notification frame.

A network system for a data center is described in which a switch fabric provides full mesh interconnectivity such that any servers may communicate packet data to any other of the servers using any of a number of parallel data paths. Moreover, according to the techniques described herein, edge-positioned access nodes, optical permutation devices and core switches of the switch fabric may be configured and arranged in a way such that the parallel data paths provide single L2/L3hop, full mesh interconnections between any pairwise combination of the access nodes, even in massive data centers having tens of thousands of servers. The plurality of optical permutation devices permute communications across the optical ports based on wavelength so as to provide full-mesh optical connectivity between edge-facing ports and core-facing ports without optical interference.

A device for indicating a port on a network infrastructure device. The device may receive a command, from a network manager, to identify ports associated with a first network infrastructure device. The device may also transmit a message through a high-performance computing network to the first network infrastructure device. The message may include a request to illuminate indicators corresponding, respectively, to each of the ports associated with the first network infrastructure device. Included in the requested ports are a first port of the first network infrastructure device and a second port of a second network infrastructure device.

A system for implementing a multiplane network comprises a network device including a plurality of switches for routing traffic to an endpoint through a network of other switches. Each switch in the plurality of switches corresponds to a different plane of the multiplane network. The system includes one or more circuits that manages the plurality of switches as a single logical entity.

A system for implementing a multiplane network comprises a network device including a plurality of switches for routing traffic to an endpoint through a network of other switches. Each switch in the plurality of switches corresponds to a different plane of the multiplane network. The system includes one or more circuits that manages the plurality of switches as a single logical entity.