206 results about "Topology management" patented technology

The invention provides a dynamic flow dispatch method and system based on a software definition network. The method comprises a step of carrying out deep analysis of flow through flow information uploaded by a switch, and classifying flow types by a flow identification and grading module according to priorities, a step of calling a statistic management module to obtain information of switch ports, calculating joint links of the switch, and sending information of the joint links to a topology management module, a step of calling the topology management module to obtain a feasible path for flow direction and calculating real-time sate statistic information of the feasible path, and a step of analyzing features of the joint links to calculate weight of the joint links in the overall selection, working out the optimal dispatch strategy based on the weight and giving out the optimal dispatch strategy. The invention can achieve the optimal real-time dispatch of network flow, so that flow is enabled to reach a destination in a fastest manner, and purposes of improving the bandwidth utilization rate and optimizing network performances are finally realized.

A method and system for integrated management of converged heterogeneous resources is disclosed. The method includes: defining a Software-Defined Infrastructure (SDI) by separating data, control, and management for converged heterogeneous resource provisioning, creating an integrated resource manager using interfaces for one or more cloud controllers, Software-Defined Network (SDN) controllers, or general-resource controllers, enabling external entities to request and use the resources through interfaces, storing topology information and utilizing it for integrated resource management, and monitoring and measuring the converged heterogeneous resources. An integrated management system includes an SDI manager configured to provide integrated resource control and management functions, a cloud controller, an SDN controller, a general resource controller, a topology manager, northbound interfaces of an SDI manager for external entities to request resources and check the status of resources, and all inter-relations between an SDI manager, a cloud controller, an SDN manager, a general resource manager and a topology manager.

A technique maps the capacity of storage devices, such as disks, into any RAID group of a volume of a storage system regardless of the location of the RAID group within a volume block number (VBN) space of the volume. The technique separates disks and mapped VBN ranges, allowing for flexibility in the description and extension of RAID group capacities, while providing disk addition policies that support location-independent disk insertion into RAID groups. The technique also provides a disk label structure that supports the provision of multiple VBN ranges within a RAID group and within individual disks. Moreover, the technique provides file system support for allocation and topology management of the multiple mapped VBN ranges within disks and RAID groups, as well as noncontiguous VBN ranges across the RAID groups in the volume.

Among networks of ring configuration, the dual ring topology with source steering or wrapping capabilities offers numerous advantages over a single ring topology. In the management of a ring network, problems consist in making sure that every node in the ring is aware of the current ring topology. If, however, two or more links fail even in a dual ring network, the propagation of discovery packets is not guaranteed. A new topology discovery technique is disclosed. In accordance with one aspect of the invention, the algorithm uses only one discovery packet format and a set of timers for a variety of actions to be performed at each node on the ring. The protocol finds valuable applications in RPR and many similar network architectures.

The invention discloses a thing Internet gateway of a heterogeneous wireless network and a control method thereof. Function, such as protocol conversion, route selection, data exchange and the like, is provided in the network interworking process of different structures or protocols of the thing Internet. The gateway is a multi-layer cascading gateway and comprises a main gateway used for communication, sensor network management and topology management, and sub-gateways responsible for converting and penetrating a short-range wireless protocol and receiving front-end sensing network data, wherein each of the sub-gateways is connected with the main gateway. The limitation to the access ability of a sensor network is overcome, so that various front-end sensing nodes access a thing Internet platform without barriers; free networking of the sensor network front end is realized by taking full advantage of the conventional communication capacity and cascading gateway technology at the same time; the problems of the failure management and performance management of the sensor network front end are effectively solved; and the safety, the reliability and the stability of the sensor network and neurones are enhanced.

In an open flow network, a load of a switch on a secure channel network when a controller maintains and updates a physical topology of the switch in the situation that a network among the switches is in a high delay state. More specifically, the controller sets a flow entry having a rule and an action defined to uniformly control a packet as a flow to each of a plurality of switches. The controller sets to each switch, a circulation flow entry to be deleted when a circulation packet which is mutually transmitted and received among the switches gets not to arrive. Then, when receiving a notice that the circulation flow entry has been deleted, from each switch, the controller detects a failure among the switches.

A distributed system provides for separate management of dynamic cluster membership and distributed data. Nodes of the distributed system may include a state manager and a topology manager. A state manager handles data access from the cluster. A topology manager handles changes to the dynamic cluster topology. The topology manager enables operation of the state manager by handling topology changes, such as new nodes to join the cluster and node members to exit the cluster. A topology manager may follow a static topology description when handling cluster topology changes. Data replication and recovery functions may be implemented, for example to provide high availability.

The invention relates to a sensor network multi-protocol gateway, which comprises receiving subnet gateways corresponding to front-end sense networks, a front-end sense network management main gateway, and a topology management gateway, wherein the receiving subnet gateways are used for networking through searching different front end structures or protocol network node signals in a multi-protocol network manner so as to establish the front-end sense networks, and realizing communication between the same network nodes through route selection; the front-end sense network management main gateway is respectively connected with the receiving subnet gateways, and is used for distributing routing information for the receiving subnet gateways, and forming a multi-path network for maintaining a routing relation between the receiving subnet gateways so as to establish communication between the front-end sense networks; and the topology management gateway is used for establishing communication between the front-end sense networks and rear-end equipment or network. The gateway realizes the efficacy of data receiving of a multiple network protocol and network routing of a multi-type heterogeneous network, and overcomes the limitation of access capability of the front-end sense networks in the prior art, so that the front-end sense networks are mutually connected and communicated.

A mobile communication system is constructed including a plurality of cluster heads, cluster members, a topology management device, and a location management device. Each cluster head exchanges routing information with only each cluster member in a cluster to which the terminal itself (host terminal) belongs, and with only a cluster head in another cluster adjacent to the cluster to which the host terminal belongs. Each cluster member exchanges routing information with only a cluster head in a cluster to which the host terminal belongs. The topology management device and location management device receive the routing information from each cluster head only.

A method for remotely managing a sensor network topology includes: receiving a device management DM command sent by a device management server, where the DM command acts on a preconstructed management object MO node and the MO node includes a node configured to discover a sensor network topology, a node configured to describe a sensor network topology, or a node configured to modify a sensor network topology; and managing a sensor network according to the DM command, where the management includes discovering the sensor network topology, describing the sensor network topology, or modifying the sensor network topology. By adopting the present invention, remote topology management of a sensor network successive to an M2M gateway can be implemented and the complexity for implementing the management is reduced.

A method for managing a topology of a multi-ring Ethernet and a system thereof are disclosed, and the method includes: a node including a blocked port on the multi-ring Ethernet periodically sending a Topology Find Frame (TF) message along a transmission control channel through an own good port; a node receiving said TF message in the multi-ring Ethernet updating an own topology database according the NODE_LIST in said TF message, writing an own NODE_ID into the NODE_LIST of said TF message, and then forwarding said TF message along the transmission control channel.

The present invention discloses a Ethernet switch stacking system management method, which comprises that stacking members are initialized for the stacking system waiting for joining in, the owner information of the stacking member is empty, the main device is confirmed, and a device configuration table is arranged; the stacking member waiting for joining in the stacking system sends out the joining in request message to the outside for joining in the stacking system; the stacking member receives the message judges whether allowing the stacking system waiting for joining in the stacking system to join in the stacking system or not, if the joining in is allowed, a joining allowance message is sent; and the stacking member receives the message judges whether allowing the stacking system of which the state is waiting for joining in the stacking system to join in the stacking system or not, if the joining in is allowed, the state is moved to be the state of being joined in the stacking system. The present invention ensures that the stacking members join in the stacking system gradually, thus the initiation and the forwarding number of the topology management message between the stacking members are reduced, the CPU and bandwidth resource are saved, and the message loop and the broadcasting storm are effectively prevented.

A computer implemented method, apparatus, and computer program product to managing links in a network. A directional link management system comprises a network manager, a router, a situational awareness database, a neighbor discovery module, a topology manager, and a data link manager. The network manager provides performance parameters for a wireless network. The router routes information to neighbor nodes provides information about links between nodes in the wireless network environment. The situational awareness database stores information about the nodes. The neighbor discovery module detects a presence of a new node. The topology manager identifies a set of links for a node using the set of performance parameters, information about the links, and information about the nodes. The data link manager manages the identified links.

Disclosed is a distributed database system, which effectively utilizes surplus resources of a plurality of computers. For this, a topology administration server device correlates an identifier identifying a database object administered by a database administration device with an identifier identifying the database administration apparatus. When a plurality of computers transmit a cache request including an identifier identifying a database object to the topology administration server device so as to cache the database object, the topology administration server device transfers the cache request to the database administration device so that the database object is transmitted to a computer and cached there. It is also possible to operate a program executing calculation in a computer while referencing the database object cached.

A method for managing a topology of a multi-ring Ethernet and a system thereof are disclosed, and the method includes: a node including a blocked port on the multi-ring Ethernet periodically sending a Topology Find Frame (TF) message along a transmission control channel through an own good port; a node receiving said TF message in the multi-ring Ethernet updating an own topology database according the NODE_LIST in said TF message, writing an own NODE_ID into the NODE_LIST of said TF message, and then forwarding said TF message along the transmission control channel.

Systems and methods for connections on an Automatically Switched Optical Network (ASON) network including an ASON database and path computation algorithm, mechanisms for Ethernet connections over ASON, and mechanisms for label negotiation for SNCs are provided. Advantageously, the present invention provides mechanisms for ASON path computation and virtual topology management, Ethernet connection establishment, modification, and deletion in ASON networks, and label negotiation without requiring binding and releasing of connections before label negotiation.

The invention discloses a visualized editing and displaying method for IT infrastructure topology. The method is achieved through a visualized editing module and a visualized displaying module. The visualized editing module conducts visualized editing on the IT infrastructure topology, and the visualized displaying module conducts visualized displaying on the IT infrastructure topology; an editing result of the visualized editing module is displayed by the visualized displaying module; the visualized editing module is divided into four assemblies including an editing tool area, a drawing area, an equipment list area and an attribute set area; the visualized displaying module is divided into a displaying area, a tool bar, a title bar and an event bar assembly. Mainly for the problems of topology editing and displaying in the field of IT infrastructure topology management, a set of general solution schemes are summarized by combining the project practice, then, topology editing and displaying work is simplified, and the method is suitable for most IT infrastructure real-time monitoring fields.

The invention provides an SNMP (Simple Network Management Protocol) and HTML5 (Hypertext Markup Language 5)-based method for realizing web network topology. The method comprises the steps of: S1, selecting user-defined topology or self-discovered topology; S2, when selecting the self-discovered topology, detecting all resources by utilizing the SNMP, and writing the detected self-discovered network topology resources into a database; S3, according to the self-discovered network topology resources, analyzing to obtain a self-discovered network topological relationship; S4, according to the attributes of the topology resources, displaying the topology resources in a network topology editing page canvas, calculating coordinates of each topology resource in a network topology editing page, and drawing topology management connecting lines by utilizing the drawing function of the canvas of the HTML5 according to the self-discovered network topological relationship; and S5, conducting network usability detection to the topology resources according to the IP (Internet Protocol) of the topology resources, and writing the detected problems into an alarm subsystem for alarming and prompting. Through the method, the network topology presentation of the B / S (Browser / Server) structure can be done through the HTML5, and a user can select user-defined topology or self-discovered topology.

A highly available communications system capable of circuit reestablishment and tear-down without manual intervention. The communications system includes a plurality of nodes interconnected by a plurality of communications paths to form at least one communications network. The nodes forward control packets on the network by way of a signaling protocol employing an out-of-band control technique. At least a portion of the nodes comprises a software configuration including a topology manager and a protocol manager. The protocol manager is operative to determine whether a control path is operational and whether a data transmission channel along a corresponding data path is established. In the event the control path is not operational, the protocol manager maintains the data transmission channel along the data path so long as the channel is established. The topology manager is operative to acquire network topology data, and the protocol manager is further operative to receive the topology data, deduce network topology changes therefrom, and reestablish and tear-down communications paths interconnecting the nodes based at least in part on the deduced topology changes.

Topology management within a virtual chassis is achieved by communicating virtual chassis topology information between switches within the virtual chassis within protocol extensions of customized protocol data units (PDUs) associated with a VC-ISIS protocol. The virtual chassis topology information can be used, for example, to detect the topology of the virtual chassis and generate a shortest path tree within each switch of the virtual chassis for use in routing between switches within the virtual chassis.

The invention provides a system and method for achieving multi-service priorities and relates to the technical field of computer communication. The system comprises an SDN controller, at least one VxLAN gateway and at least two VLAN switches. The SDN controller comprises a northbound interface processing module, an IP processing module, an ARP processing module, a topology management module, an interflow domain management module and an SDN OpenFlow interface module. Each VxLAN gateway comprises a configuration management module, a VxLAN OpenFlow interface module, a flow table management module, a tunnel encapsulation processing module, a tunnel decapsulation processing module, an application layer service recognition processing module and a VxLAN receiving and transmitting package module. Each VLAN switch comprises a VLAN receiving and transmitting package module and a VLANID module. According to the system and the method, the performance of hardware is not required, a special communication processor does not need to be used, and the equipment cost is lowered.

The invention discloses an IPv4 and IPv6 network interconnection method based on an SDN. A domain name resolution module, an address switch module, a translation module, a map module, a topology management module, and a temporary address pool management module are referred in the process of executing the method; the domain name resolution module is a core module and used for processing a DNS request; the address switch module switches an IPv4 address to an IPv6 address and is used for being called by the domain name resolution module; the translation module is used for mutually translating an IPv4 message and an IPv6 message and comprises an IP masthead, an ICMP message and the translation of TCP / UDP messages; the map module is used for maintaining a mapping table of domain names and IP address and storing the mapping relation between the domain names and an IPv4 address and an IPv6 address; the topology management module is used for maintaining global topology of the internet; the temporary address pool management module is used for distributing and recycling the IPv4 address temporarily. By means of the method, the problems of protocol switching and address mapping are solved, and the interconnection and interworking of the internet is achieved.

The invention provides a virtual networking network topology discovery method and device. A topology management module is deployed on a physical device with virtual networking, and the topology management module is used for obtaining topology connection relation data in virtual networking, carrying the topology connection relation data in LLDP messages and transmitting the topology connection relation data to an external physical network device connected with the physical device. Thus, the topology connection relation of virtual networking can be transmitted to equipment in a physical network, and topology discovery of virtual networking is achieved.

A computer implemented method, apparatus, and computer program product to managing links in a network. A directional link management system comprises a network manager, a router, a situational awareness database, a neighbor discovery module, a topology manager, and a data link manager. The network manager provides performance parameters for a wireless network. The router routes information to neighbor nodes provides information about links between nodes in the wireless network environment. The situational awareness database stores information about the nodes. The neighbor discovery module detects a presence of a new node. The topology manager identifies a set of links for a node using the set of performance parameters, information about the links, and information about the nodes. The data link manager manages the identified links.

The invention discloses an energy consumption balancing method in a wireless ultraviolet light cooperative unmanned aerial vehicle formation network. An ultraviolet light non-line-of-sight single scatter communication model is established; an energy attenuation formula of channels in an ultraviolet NLOS(c) class communication mode is determined; and on the basis, energy consumption analysis is carried out on unmanned aerial vehicle formation in flight through adoption of a wireless ultraviolet light communication energy consumption model. Through circulation of three phases of cluster head selection, cluster establishment and stable data transmission, clustering management is carried out on the unmanned aerial vehicle formation, so a purpose of balancing network energy consumption is achieved. According to the method provided by the invention, through combination of the advantages of wireless ultraviolet light scatter communication, the energy consumption balancing is carried out on the unmanned aerial vehicle formation based on a clustering topology management mechanism, energy allocation of the unmanned aerial vehicle formation can be effectively optimized, and survival time of the unmanned aerial vehicle formation is prolonged.

The invention discloses an ARP broadcast restraining system and method for achieving a VxLAN based on an SDN framework and relates to the field of the VxLAN in a data center. The system comprises an SDN controller, VxLAN Gateways and VLAN interchangers. The SDN controller comprises an SDN OpenFlow interface module, a communication domain management module, a topology management module, an ARP proxy module and an IP processing module, wherein all the modules are sequentially connected. Each VxLAN Gateway comprises a configuration management module, a VxLAN OpenFlow interface module, a flow meter management module, a tunnel encapsulation module, a tunnel decapsulation module and a VxLAN package receiving and sending module, wherein all the modules are sequentially connected. Each VLAN interchanger comprises a VLAN package receiving and sending module and a VLAN ID module. The system and method are easy to achieve, the number of transmission times of ARP broadcast messages can be remarkably reduced, ARP broadcast in various scenes can be avoided, the broadcast restraining effect is good, and the system and method can be used by people conveniently.

The invention discloses a satellite group network time synchronization method based on a cross-layer design. A spread spectrum signal mechanism is employed in a physical layer. A clock difference between a son node and a father node is calculated in a semi-two-way inter-satellite distance measurement mode, thereby finishing high-precision time synchronization between the nodes. Network synchronization management is employed in an MAC layer, synchronization state information is broadcasted in a network and synchronization topology management is carried out. A time synchronization father node selection result is provided for the physical layer for inter-node synchronization, thereby finishing time synchronization among the nodes of the whole network. The method provided by the invention is applicable to inter-satellite time synchronization demands of various satellite groups; there is no special demand for a satellite system; the universality is high; the application range is wide; on-satellite processing is simple; and the method has good application prospect.

The invention provides an integrated access point topology management method, which comprises the following steps that: access controllers are arranged on access points in a plurality of wireless local area networks; a network management server obtains the physical address of each access controller through a simple network management protocol; the network management server obtains the list of the access points managed by each access controller according to the physical address of each access controller; and the network management server obtains the information of each access point through the simple network management protocol according to the list of the access points managed by each access controller. The network topology management method perfectly conforms to the requirement of the wireless network topology management, the topology management efficiency is improved, the geographical position of the access points can be more intuitively and effectively displayed, users can realize fast positioning on the access points with the fault, and the usability of the topology management is improved.

The invention discloses an access level network topology management method and an access level network topology management system. The method comprises the following steps that a gateway network element in a network obtains the connection relationship between the network topology and the network element in the whole network, and a topology tree adopting the gateway network element as a root node is generated according to the obtained connection relationship between the network topology and the network element; the gateway network element records and maintains all topology node information in the topology tree, wherein the topology node information at least comprises the network element level and the network element state. The invention provides a topology management method based on topology automatic discovery and automatic management of a main control disc, and the automatic collection and the maintenance management on the whole network topology are preferably realized.