Patent classifications
H04L12/4625
LAYER 3 CONVERGENCE FOR EVPN LINK FAILURE
A network device is configured to provide, via an Ethernet segment with a customer network, active-active multi-homing L2 virtual bridge connectivity to the customer network using an EVPN instance (EVI) and L3 routing using an IRB interface that is a L3 routing interface assigned to the EVI; to receive, from a peer PE device of the EVPN instance, an EVPN route comprising an L2-L3 binding for a customer device of the customer network and associating the L2-L3 binding with the Ethernet segment, the L2-L3 binding comprising an L2 and an L3 address assigned to the customer device, wherein the peer PE device provides, with the network device and via the Ethernet segment, active-active multi-homing L2 virtual bridge connectivity to the customer network; and to forward, via the Ethernet segment and based at least on the L2-L3 binding received from the peer PE device, an L3 packet to the customer device.
METHODOLOGY FOR SIMPLIFICATION OF AIRCRAFT HARNESSING IN MULTI-REDUNDANT CONTROL SYSTEMS
A method and control system that implements a particular aircraft harnessing for an aircraft is provided. The control system includes an effector Line-Replaceable Unit (LRU) including a first connection port, a second connection port, and a first interconnect wire internally connecting the first connection port and the second connection port, a first control LRU connected using a first harnessing to the effector LRU, and a second control LRU connected using a second harnessing to the effector LRU, wherein the first control LRU and the second control LRU are configured to communicate using the first interconnect wire in the effector LRU.
DEVICE ACCESS BY MEANS OF A GENERIC COMMUNICATION DRIVER
The invention relates to a data transmission system for a data exchange between a field bus system that comprises at least one field device, and device access software that is installed on a host and by means of which components of the field bus system can be accessed. The data transmission system comprises a coupler device that is connected to the field bus system, and a generic communication driver, which is integrated in the device access software. In addition, at least one device driver is integrated in the device access software. The data transmission system further comprises a central data transmission path, which can be built between the generic communication driver and the coupler device, and via which primary data traffic can be transmitted. The generic communication driver is configured to exchange data with at least one of the device drivers that is integrated in the device access software, and to transmit data received from the at least one device driver as part of the primary data traffic to the coupler device via the central data transmission path, and to forward data of the primary data traffic received by the coupler device via the central data transmission path to the respective device driver for which the data are intended. The coupler device is configured to convert the primary data traffic received from the generic communication driver via the central data transmission path into secondary data traffic while adding routing information and to send it to the field bus system, and to convert data received from at least one of the field devices to the primary data traffic, and to transmit it to the generic communication driver via the central data transmission path.
OPERATIONS, ADMINISTRATION AND MANAGEMENT (OAM) IN OVERLAY DATA CENTER ENVIRONMENTS
Systems, methods, and computer-readable media for OAM in overlay networks. In response to receiving a packet associated with an OAM operation from a device in an overlay network, the system generates an OAM packet. The system can be coupled with the overlay network and can include a tunnel endpoint interface associated with an underlay address and a virtual interface associated with an overlay address. The overlay address can be an anycast address assigned to the system and another device in the overlay network. Next, the system determines that a destination address associated with the packet is not reachable through the virtual interface, the destination address corresponding to a destination node in the overlay network. The system also determines that the destination address is reachable through the tunnel endpoint interface. The system then provides the underlay address associated with the tunnel endpoint interface as a source address in the OAM packet.
Integrated cloud system for premises automation
A system comprises premises devices located at a premises. A gateway device is located at the premises and may communicate with the premises devices. A server is configured to interact with the premises devices and the gateway device. A touchscreen device may communicate with the server and configured to interact with the premises devices. The touchscreen device includes a user interface configured to interact with the gateway device. The user interface is configured to control interactions between the premises devices and the gateway device and trigger, based on at least one automation rule, an action of at least one of the premises devices. Corresponding methods, apparatuses and other systems are also provided.
METHOD AND SYSTEM FOR FREQUENCY MULTIPLEXER
Aspects of methods and systems for frequency multiplexing suitable for Data Over Cable Service Interface Specification (DOCSIS) are provided. A system for multiplexing signals according to frequency comprises a DOCSIS port interface, an upstream interface, a downstream interface, and a circulator subsystem. The DOCSIS port interface comprises a plurality of channel filters. The upstream interface is operably coupled to a first channel filter of the plurality of channel filters, and the downstream interface is operably coupled to a second channel filter of the plurality of channel filters. The circulator subsystem is able to direct a first signal from the upstream interface to the DOCSIS port interface and is able to direct a second signal from the DOCSIS port interface to the downstream interface.
METHOD AND APPARATUS FOR MAPPING NETWORK DATA MODELS
In one embodiment, a method includes processing network data models at a network device operating in a network comprising a plurality of network components, each of the network components associated with one of the network data models, performing semantic matching at the network device for at least two of the network data models, the semantic matching comprising computing labels for elements of the network data models utilizing label computation algorithms configured for notational conventions used in the network data models, computing contexts for the elements based on a hierarchy of each of the network data models, removing one or more of the labels used to form the contexts to create reduced contexts, and computing a semantic relationship for the reduced contexts of the network data models. The network data models are mapped at the network device based on the semantic matching for use in a network application. An apparatus and logic are also disclosed herein.
Nested frequency hopping for data transmission
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a discovery reference signal from a base station on an anchor channel. The UE may perform a first random or pseudorandom frequency hopping procedure to identify a plurality of downlink carriers for a first time period. The UE may perform a second random or pseudorandom frequency hopping procedure within the plurality of downlink carriers to select one of the plurality of downlink carriers as the uplink channel for a second time period. The UE may then transmit an uplink communication during the second time period on the selected uplink channel. In some examples, the uplink communication may be transmitted based at least in part on time division multiplexing (TDM) information.
Techniques for utilizing multiple network interfaces for a cloud shell
Techniques for utilizing multiple network interfaces for a cloud shell are provided. The techniques include receiving, by a computer system, a command to execute an operation by the computer system, the command being received from a router via a primary virtual network interface card (vNIC). The computer system may execute the operation, generating an output of the operation. The techniques also include transmitting, by the computer system, a message comprising the output of the operation to a shell subnet via a secondary vNIC, the secondary vNIC being configured for unidirectional transmission from the computer system to the shell subnet. The shell subnet may be configured to transmit the output of the operation to an external network via a network gateway.
PACKET DETECTION RULES DERIVED FROM ETHERNET FORWARDING INFORMATION
Systems and methods are disclosed herein that relate to obtaining and using Packet Detection Rules (PDRs) in a cellular communications system operating as virtual Ethernet bridge based on Ethernet forwarding information. In one embodiment, a method performed by a User Plane Function (UPF) for enabling a cellular communications system to operate as a virtual Ethernet bridge comprises obtaining a PDR for a Protocol Data Unit (PDU) session in a downlink direction in the cellular communications system. The PDU session is associated with an egress Ethernet port of the virtual Ethernet bridge for the downlink direction, the PDR maps Ethernet packets received at the UPF on an ingress Ethernet port(s) of the virtual Ethernet bridge to the PDU session associated with the egress Ethernet port of the virtual Ethernet bridge, and the PDR is derived from an Ethernet packet forwarding rule of the virtual Ethernet bridge.