13 results about "Routing architecture" patented technology

The application provides a roaming communication method and network element under a home routing architecture, a storage medium and a computer program product, and comprises the following steps: a first network element receives a domain name resolution request initiated by a terminal; the domain name resolution request carries first domain name information and first DNS address information; in the case that the first domain name information is domain name information of a specific service, the user is a specific user and / or the first DNS address information is specific DNS address information, the first DNS address information is modified into second DNS address information; the DNS server corresponding to the second DNS address information is located in a visited network with the first network element; the domain name resolution request is forwarded to the DNS server, so that the DNS server resolves the first domain name information, obtains first service server address information of the visited network, and returns the first service server address information to the terminal. The service path can be shortened, and the service time delay can be reduced.

The invention discloses a satellite-ground integrated routing method suitable for a low-orbit constellation, and belongs to the technical field of satellite communication networks. According to the method, a'satellite-to-ground segmented bearing 'routing architecture is adopted, and inter-satellite routing and satellite-to-ground routing are designed in a decoupling manner and are independent from each other. The inter-satellite routing process adopts a mode of combining'top injection topology and autonomous routing ', initial topology is preset on the ground, satellites autonomously monitor link states and change information is synchronized in the whole network, and fault autonomous recovery and global routing convergence are realized; in the satellite-ground routing process, a mode of'injection on the ground and diffusion in the whole network 'is adopted, and the mapping relation between the gateway station and the landing satellite is quickly synchronized. In the forwarding process, according to whether the data fall to the ground or not, the satellite-ground routing tables are inquired to obtain destination satellite addresses, and then the inter-satellite routing tables are inquired to carry out hop-by-hop forwarding. According to the method, the problem of frequent convergence of satellite-ground routing caused by rapid movement of the satellite is effectively solved, the routing dynamics is simplified, and the method has the advantages of being small in protocol overhead, rapid in fault recovery and high in engineering realizability.

The invention discloses an on-chip network hybrid routing implementation method and architecture based on real-time congestion perception, and relates to the technical field of communication of an integrated circuit on-chip system. Comprising the following steps: step 1, creating a hybrid routing architecture; step 2, judging a routing direction by a routing direction calculation module in east, south, west and north input ports by using an NSWE hybrid routing algorithm aiming at a path node; step 3, a routing direction calculation module in a local port judges a routing direction by using a Local hybrid routing algorithm aiming at the source node; according to the invention, the transmission delay of the NoC router is reduced, the influence of congestion on the transmission efficiency is reduced, and the overall performance is improved.

The present disclosure provides an FPGA hybrid wiring architecture with a spatially heterogeneous interconnection structure and an evaluation method. The FPGA hybrid wiring architecture with a spatially heterogeneous interconnection structure comprises: an FPGA chip divided into a plurality of sub-areas, each of the plurality of sub-areas being provided with a plurality of types of interconnection chips; each of the plurality of types of interconnection chips being provided with a wiring block connected with a logic block; the wiring block being provided to consist of one or more grouped areas, each area consisting of a first-level multiplexer group and a second-level multiplexer group, and the internal structure of the wiring block being determined according to a method of setting the internal structure of the wiring block. In addition, the present disclosure proposes a corresponding evaluation method for the FPGA hybrid wiring architecture with a spatially heterogeneous interconnection structure. The present disclosure aims to solve the problems of uneven resource utilization, serious wiring detour, and large area and delay waste of the traditional FPGA wiring structure.

A cloud computing platform provides virtual machines on-demand to users. The platform provides a service that enables the user to access and control their virtual machine via an out-of-band channel for administrative purposes. A user invokes this service by authenticating with a control center and receiving a URL that points to a content delivery network (CDN). The user follows the URL to connect to a particular CDN server, per the CDN's request routing architecture. The CDN server applies instructions for handling this cloud compute platform URL, thereby decrypting an encrypted token in the URL to find, e.g., a network locator pointing to the host that is currently hosting the user's virtual machine, as well as an identifier for the user's virtual machine, and authenticators. The CDN server goes forward to the host, connecting to an endpoint which in turn connects to the user's virtual machine to provide the service.

Certain aspects of the disclosure are directed to routing data communications based on time zone. According to a specific example, a data-communications system for routing data communications based on time zone includes a communications routing circuit and a processing circuit. The communications routing circuit receives and routes data communications to a plurality of data communications stations and provides data communications services for users of the data communications stations. For such data communications routed in which a time zone routing feature is applied, the processing circuit determines a geographic location of the respective data communications station. The processing circuit then identifies a respective set of routing functions, based on a time zone of the geographic location, and routes the data communication based on the time zone, and according to the respective set of routing functions.

The application provides an on-site IO device on-demand communication routing system and method, relates to the technical field of device communication, and the system comprises an application arrangement layer, an on-demand routing decision layer and a device layer; the application arrangement layer outputs data to the on-demand routing decision layer; the on-demand routing decision layer issues configuration to the device layer; the device layer reports state data to the on-demand routing decision layer; the application arrangement layer is used for defining system control tasks and generating a standardized system model; the on-demand routing decision layer is used for intelligent decision of a communication mode and configuration conversion; the application arrangement layer, the on-demand routing decision layer and the device layer are logically linked in sequence and constitute an end-to-end on-site IO device on-demand communication routing architecture. The application realizes intelligent on-demand selection of a communication mode, takes into account the advantages of centralized scheduling and direct communication, improves the real-time performance of data interaction and the flexibility of the system, adapts to dynamic process requirements, and improves the intelligent level and the self-adaptive level of an industrial control system.

This invention provides a constellation network fusion method based on a tunnel-encapsulated multi-constellation interconnection routing architecture, belonging to the field of constellation routing calculation technology. The method divides the multi-constellation interconnection routing architecture into a satellite core autonomous system and a satellite user autonomous system according to the application scenario of the satellite network. The satellite core autonomous system adopts a distributed routing strategy and runs a customized internal gateway protocol. Border routers receive packets from the satellite user autonomous systems and encapsulate them with IP headers or link-layer headers before sending them to the satellites. The satellites receiving the packets forward the packets at the network layer or link layer to the destination network satellite terminal or destination gateway. The destination network satellite terminal or destination gateway decapsulates the packets, restoring them to the original IP packets, and sends the original IP packets to the destination network satellite terminal by looking up the routing table or forwarding table based on the destination IP address in the original packets, thus fusion of satellite constellation networks at different construction stages.

A system is provided which includes a first communications network including first nodes and a second communications network including a group of second nodes. Each of the first nodes is configured to transmit a multi-destination packet to two or more second nodes among the group of second nodes based on numerical identifiers which respectively correspond to the second nodes and are different from one another and a composite number corresponding to the group of second nodes. The composite number is a product of the numerical identifiers.

The invention relates to a nebula computing network technology of a dynamic low earth orbit satellite, in particular to a time delay sensitive task routing optimization method and system for a dynamic satellite network. The method comprises the following steps: deploying an inter-satellite routing architecture, defining a task parameter group, constructing a network communication model, establishing a time delay calculation model for task transmission processing, and determining a task dynamic routing strategy; according to a time delay calculation model and a task dynamic routing strategy, determining a target function and a constraint condition of an optimization problem by taking minimization of transmission delay and maximization of throughput as targets; and solving an objective function of the optimization problem based on reinforcement learning, and generating a dynamic inter-satellite routing strategy according to a solving result. According to the method, through fusion of spatial-temporal feature perception and reinforcement learning decision, the problem of unbalanced resource utilization under high dynamic topology is solved, the throughput of a satellite network is remarkably improved, the end-to-end delay is reduced, and efficient routing support is provided for an on-satellite computing task.

The application discloses a routing architecture, a routing method and a vehicle based on AUTOSAR architecture cross-chip CAN data, and the routing architecture comprises a first chip and a second chip. A CAN interface module of the first chip receives a CAN frame of a CAN bus and sends the CAN frame to a PDU routing module, the PDU routing module directly routes the CAN frame to a conversion module in the first chip, and a protocol driving module in the first chip sends the CAN frame processed by the conversion module to the second chip through a preset protocol. A Com module transplanted from AUTOSAR in the second chip receives a packaged CAN frame and unpacks the CAN frame to obtain a CAN signal. The application solves the problem that in the related art, a CAN frame is routed in a signal unit, needs to be processed by multiple layers of Com, Rte and SWC, a frame of data causes hundreds of times of Rte interface calling, and CPU resources are seriously consumed, and the transmission efficiency of cross-chip CAN data is improved.

The invention provides an FPGA (Field Programmable Gate Array) hybrid wiring architecture with a spatial heterogeneous interconnection structure and an evaluation method, and the FPGA hybrid wiring architecture with the spatial heterogeneous interconnection structure comprises an FPGA chip which is divided into a plurality of sub-regions, and each of the plurality of sub-regions is provided with a plurality of types of interconnection pieces; each of the plurality of types of interconnection pieces is provided with a wiring block connected to the logic block; the wiring block is provided to be composed of one or more grouped regions, each of which is composed of a first-stage multiplexer group and a second-stage multiplexer group, and the internal structure of the wiring block is determined according to a method of setting the internal structure of the wiring block. In addition, the invention provides a corresponding evaluation method for the FPGA hybrid wiring architecture with the spatial heterogeneous interconnection structure. The problem that a traditional FPGA wiring structure is uneven in resource utilization rate, serious in wiring bypassing and large in area and delay waste is solved.