Systems and methods include obtaining a plurality of services supported at the node; determining a bitmask to represent the plurality of services supported at the node, wherein the bitmask includes a starting service and each subsequent bit representing another service of the plurality of services and with each bit in the bitmask set based on the plurality of services supported at the node; and transmitting an advertisement to nodes in the Segment Routing network with a starting Service SID value and the bitmask based on the plurality of services supported at the node. The plurality of services can include any of a Virtual Private Wire Service (VPWS) and a Flexible Cross Connect (FXC) service.

A transmission apparatus includes a control unit for carrying out processing to secure a resource for a standby system path in response to detection of a sign of failure in an active system path.

The disclosure provides communication methods and apparatuses. One example method includes that the first access network device obtains a correspondence between the first terminal apparatus and the second terminal apparatus. After obtaining a data packet, the first access network device sends a same data packet to the first terminal apparatus and the second terminal apparatus based on the correspondence, so that the first terminal apparatus and the second terminal apparatus transmit the same data packet to the slave station device.

Techniques for migrating a plurality of communications services in a data communication network are disclosed. Aspects include accessing a migration map for the plurality of communications services in the data communication network; identifying a communications dependency between a first service and a second service in the plurality of communications services, wherein according to the migration map the first service is configured to migrate from a first route to a second route, the second service is configured to migrate from a third route to a fourth route, and the third route overlaps with the second route; determining, based on the identified communications dependency, a migration sequence for migrating the plurality of communications services in the data communication network; and migrating the plurality of communications services from a first plurality of configurations to a second plurality of configurations according to the migration sequence.

A system according to one embodiment includes a collection of computing nodes arranged in a mesh of N×M×Z topology, the nodes including computational hardware, wherein Z<N and Z<M, and wherein N and M are at least equal to 4; a collection of I/O connections interfaced with one of the sides of the mesh, said side having N×M nodes, each of the I/O connections being tied to a unique one of the nodes in said side; and I/O cards that are tied to the I/O connections.

Systems and methods for supporting efficient virtualization in a lossless interconnection network. An exemplary method can provide, one or more switches, including at least a leaf switch, a plurality of host channel adapters, wherein each of the host channel adapters comprise at least one virtual function, at least one virtual switch, and at least one physical function, a plurality of hypervisors, and a plurality of virtual machines, wherein each of the plurality of virtual machines are associated with at least one virtual function. The method can arrange the plurality of host channel adapters with one or more of a virtual switch with prepopulated local identifiers (LIDs) architecture or a virtual switch with dynamic LID assignment architecture. The method can assign each virtual switch with a LID. The method can calculate one or more linear forwarding tables based at least upon the LIDs assigned to each of the virtual switches.

An object of the present invention is to provide a management device and a management method with which it is possible, in a multilayer integrated NW, to reflect a tendency to failure in a transmission layer in maintenance of an NW constituting an upper layer.

A management device according to the present invention, by using an index for evaluating the signal quality of the transmission layer as a trigger for performing a preventive maintenance switch in the NW of the upper layer and determining, in an integrated fashion, the effect of performing route switches on the respective layers on a functional requirement such as delay, realizes preventive maintenance on an accommodated line through correlation between communication layers in a manner that more closely satisfies the functional requirements of the NW.

An object of the present invention is to provide a management device and a management method with which it is possible, in a multilayer integrated NW, to reflect a tendency to failure in a transmission layer in maintenance of an NW constituting an upper layer.

A management device according to the present invention, by using an index for evaluating the signal quality of the transmission layer as a trigger for performing a preventive maintenance switch in the NW of the upper layer and determining, in an integrated fashion, the effect of performing route switches on the respective layers on a functional requirement such as delay, realizes preventive maintenance on an accommodated line through correlation between communication layers in a manner that more closely satisfies the functional requirements of the NW.

A method for enabling enable use of multiple active paths for TDM traffic over a packet switched network, comprises: receiving at least two copies of a replicated packet including TDM information via at least two paths through the packet switched network, the at least two copies of the replicated packet including at least a first copy of the replicated packet received via a first of the at least two paths, and a second copy of the replicated packet received via a second of the at least two paths; selecting a copy of the replicated packet from among the at least two copies of the replicated packet; inputting the selected copy of the replicated packet to a jitter buffer; discarding unselected ones of the at least two copies of the replicated packet; and outputting the selected copy of the replicated packet from the jitter buffer to a TDM endpoint device.

Embodiments are disclosed for a partitioned wireless communication system for a vehicle with redundant data links and power lines. In an embodiment, a system comprises: a communication gateway unit (CGU) located at a first location of the vehicle includes a communication processor, a first power supply, and a first data interface. A remote wireless transceiver unit (RWTU) located at a second location of the vehicle includes a second data interface coupled to the first data interface using redundant data links, a power interface coupled the first power supply to the RWTU using redundant power lines, and wireless transceiver(s) coupled to antenna(s) on the vehicle. The communication processor detects a loss of a first data link or a first power line, and in response to the detecting, selecting a second data link or second power line to transfer data or power, respectively, between the CGU and the RWTU.