42results about How to "Improve network reliability" patented technology

A fault localization apparatus for an optical line in a wavelength division multiplexed passive optical network is disclosed. The apparatus can detect light loss and fault positions as a channel exhibiting an abnormal receiving state of signals received by each of the upstream receivers is checked, and a monitoring optical signal is used, in which the monitoring optical signal is generated as a pulse is inputted to a light source of the downstream transmitter corresponding to the channel showing such an abnormal receiving state. The apparatus according to the present invention can detect fault positions of optical lines between the central office and the remote nodes and between the remote nodes and the optical network units, since the light source of downstream channel in which faults occur is used as a monitoring light source. The apparatus according to the present invention can be cost-effectively implemented.

In order to integrate repeater management with network management in a wireless telecommunication network, a database is added to the network management center (NMC), said database including the data on the network repeaters (R1, R2, R3), which include for each repeater (R1, R2, R3) at least the identifier of the base station (BTS) corresponding to the repeater concerned; a repeater plan is made for changing repeater parameters to correspond to the changed configuration of the base stations; and each repeater is sent an update message (B1, B2, B3) containing parameters for the reconfiguring of the repeater (R1, R2, R3) to correspond to the repeater plan. The invention also relates to a network management system in which the method of the invention can be applied. In addition, the invention relates to a repeater, which can be utilized in the method and system of the invention.

In a system and method for backward congestion notification (BcN) in a network, when it is determined in advance that congestion is imminent in the network, the system and method enable preventive reduction of packet transmission by transmitting a BcN message, requesting packet transmission reduction, to a network component transmitting packets, thereby preventing congestion and packet discard caused by network congestion.

The invention relates to a primary/standby route equipment switching method and route equipment. The method comprises the steps of: carrying out fault detection on an uplink interface link of the first route equipment by first route equipment connected with a primary interface of network equipment; performing connectivity detection on a primary link between the first route equipment and the network equipment; and when a detection result of the fault detection and a detection result of the connectivity detection are both normal, selecting the first route equipment as master control route equipment. Only when the fault detection result and the connectivity detection result are both normal, the route equipment connected with the primary interface of the network equipment is upgraded to be the master control route equipment, and if the fault detection result and the connectivity detection result are not normal the route equipment is degraded to be standby route equipment, so that the method avoids phenomenon of obstructed forwarding and improves the networking reliability that the network equipment accesses the IP/MPLS network in a primary/standby mode.

The invention is applied in the communication field, and provides a method and equipment to enhance SIM card reliability. The method to enhance SIM card reliability comprises the following steps that a registration request is sent to an operator network by a terminal under an NOSIM mode; an authentication process is facilitated to be launched by the operator network according to the registration request; an authentication calculation is carried out according to a network random number, hardware fingerprint information pre-stored in a home terminal, IMSI information and an authentication file issued by the authentication process to obtain a first authentication value; the first authentication is sent to the operator network so that the operator network examines the first authentication value according to a backup copy of the hardware fingerprint information to judge whether the terminal is permitted to be connected to the network. The method and equipment to enhance SIM card reliability improves terminal reliability of networking without the SIM card.

A method and system for creating and managing a plurality of storage devices in a computer network. The present invention creates a common root storage device, which stores files that are shared among several computers in the network, and a custom root storage device, which store files specific to a single computer. The method of the present invention includes creating common and custom root storage devices within the network, recognizing these devices during startup (boot) of a network computer and updating the common root storage devices as needed. In a preferred embodiment, multiple common root storage devices are used so that an alternate common root storage device may be updated while the primary common root storage device is in use. The present invention also includes a system for creating and managing storage devices on computers within the computer network using the aforementioned methods.

The utility model discloses a processing method for RNC faults, which comprises the following steps: the base station managed by working RNC is respectively connected with a backup RNC and the working RNC, and when the working RNC fails, the base station is switched under the management of the backup RNC; a core network is connected with the backup RNC and the working RNC respectively, and when the working RNC fails, the core network send the message, which is originally intended for the working RNC , to the backup RNC for processing instead. The utility model also discloses an RNC backup system and an RNC. The utility model can automatically switch the failed RNC operations to the backup RNC in case that the working RNC fails, thus greatly reducing the recovery time of the network and enhancing the reliability of the network.

The invention discloses a wireless sensor network-based energy-efficient collaborative scheduling method, which is characterized by comprising the following steps of: (1) initializing a target; (2) estimating a state; (3) selecting a sampling interval; (4) dynamically forming a next cluster; and (5) dynamically updating a cluster head, i.e., judging whether a moving target moves out of a monitoring region of a wireless sensor network, stopping tracking if the moving target moves out of the monitoring region of the wireless sensor network, otherwise transferring state estimation information of the cluster head at the current moment to a cluster head of a next moment by the cluster head, changing the cluster head of the next moment into a working cluster head and turning to the step (2). According to the wireless sensor network-based energy-efficient collaborative scheduling method, various performance indexes are considered, the performance indexes are optimized on line to select the cluster head, the cluster is dynamically generated and the sampling interval is adaptively determined, and accurate tracking of a target is realized through collaborative sensing and information fusion of a sensor node in the cluster. The wireless sensor network-based energy-efficient collaborative scheduling method has the advantages that communication energy is saved, energy distribution and calculation resources in a network are balanced, the life cycle of the network is prolonged, the reliability of the network is improved and the like.

The present invention discloses a method, apparatus and system for operating an internet protocol television service system. The present invention relates to communication field, and solves the problem of poor quality of service caused by using a cold backup electronic programmer guide (EPG) server or transferring a user to other EPG server. The method includes: a backup electronic programmer guide (EPG) server receiving an obtaining instruction message sent by a service control manager, wherein the obtaining instruction message instructs the backup EPG server to obtain service information of a failed present network EPG server; the backup EPG server obtaining the service information of the failed present network EPG server according to the obtaining instruction message, and sending an obtaining response message to the service control manager after finishing obtaining the service information.

A network routing control method includes: setting best and secondary route information while receiving/transmitting a routing protocol control message with adjacent routers; setting a table having best and secondary next hop entries using the best and secondary route information; extracting a destination IP address from the best and secondary route information to set a forwarding table; and when a failure occurs in a network which is set as the best next hop entry according to the best route information, setting the secondary next hop entry as an output interface according to the secondary route information to forward a corresponding packet.

The invention provides a dual-mode inter-mode cooperation method and an electric Internet of Things system, and belongs to the field of electric Internet of Things wireless communication. The method comprises the steps that if a mode A of a sending node is disconnected through communication of a link A, the sending node performs inter-mode cooperation, requests a mode B of the sending node to construct a network frame and forwards the network frame through a link B, wherein the type of the network frame is an inter-mode forwarding frame; and after a receiving node receives the inter-mode forwarding frame through the mode B, inter-mode cooperation is carried out, and the inter-mode forwarding frame is sent to the mode A of the receiving node, so that the mode A of the receiving node obtains communication data. According to the method, a collaborative networking function is provided, inter-mode beacon frame and networking command frame forwarding is realized, and the network networking reliability is improved; and a single-hop service transmission path backup and a selection function is provided, data frame and command frame forwarding between single-hop modes is realized, and the network data transmission reliability is improved.

The invention relates to a wireless spread spectrum intelligent household meter, a remote gas meter system and a control method. The household meter includes a power supply, a controller, a storage module and a wireless spread spectrum module. The controller is connected with the storage module and the wireless spread spectrum module respectively, and the meter measurement data in the storage module is sent out through the wireless spread spectrum module; it also includes a timer, and the timing output of the timer is connected with the controller and the wireless spread spectrum module respectively. The state control terminal of the spread spectrum module is connected to make the controller and the wireless spread spectrum module sleep and wake up synchronously. The invention adopts the wireless spread spectrum module, the signal transmission distance is long, the anti-interference ability is strong, the bit error rate is low, and the problem of difficulty exceeding the standard is solved; the timer is used to make the controller and the wireless spread spectrum module wake up at a certain frequency, It saves energy, improves the service life of the power supply, improves the reliability of the networking, and ensures the reliable and efficient operation of the network.

The invention provides a centralized gateway networking realization method and device. The method comprises the following steps: establishing an Ethernet virtual dedicated network EVPN neighbor with the VTEP equipment by using the own first type preset address; and sending an EVPN routing with the next hop of the second type preset address to the VTEP equipment, and establishing a VXLAN tunnel with the VTEP equipment by using the second type preset address; and receiving an EVPN 2-class routing sent by the VTEP equipment, wherein the EVPN 2-class routing carries an address resolution protocolARP information of a virtual machine mounted below the VTEP equipment, and saves the ARP information of the virtual machine. By applying the realization method provided by the invention, the secondaryHash problem caused by the coexistence of the Underlay and Overlay load burden can be avoided.

The invention relates to a network storm suppressing device and method based on an IEC61850 chip. The suppressing device is implemented by the IEC61850 chip; the IEC61850 chip is applied to programmable network storm detection and network storm suppression; a network controller is embedded into the IEC61850 chip; and the network controller is used for controlling the working mode of a network card according to demands. In the technical scheme adopted by the invention, monitoring and suppression of network storm are realized in the IEC61850 chip; the influence of the network storm on business units can be suppressed effectively by the IEC61850 chip; the stability and reliability of business processing is ensured; the network processing performance is improved at the same time; the network reliability of intelligent equipment is improved; chip-based network businesses are realized; modularization of device design is promoted; and the development efficiency and maintenance efficiency of equipment are increased.

The invention provides a virtual switch distributed escape method and device, and a storage medium, and is used for solving the technical problem of gateway resource and performance pressure generated by centralized processing of routing request related messages by an exit gateway. According to the method, a SDN controller issues gateway configuration information to a proxy component, the proxy component creates a virtual gateway interface and starts a monitoring daemon, a router solicitation (RS) message sent by a virtual machine is sent to the virtual gateway interface through the OVS, and the monitoring daemon assembles a router advertisement (RA) message after monitoring the RS message and sends the RA message to the virtual machine through the OVS. According to the method, the RS message is answered by a local virtual gateway interface in a distributed mode, the east-west IPv6 service of the virtual machine on the OVS can still keep normal and support the OVS of different manufacturers under the condition that the control plane fails, the pressure of the exit gateway can be reduced, the reliability of the whole network is improved, and the network bandwidth occupancy rate is reduced.

The invention discloses a fault protection method. The method comprises the steps that a first node determines that a first cross-domain node has a node fault, wherein the first node is the head nodeof a segment routing best effort serving SR-BE tunnel, the SR-BE tunnel is a cross-domain tunnel passing through a first IGP domain and a second IGP domain, the SR-BE tunnel passes through the first cross-domain node, and the first cross-domain node is a cross-domain node of the first IGP domain and the second IGP domain; the first node switches the transmission path of the service from the SR-BEtunnel to a standby tunnel, the standby tunnel does not pass through the first cross-domain node, the standby tunnel is a cross-domain tunnel passing through the first IGP domain and the second IGP domain, and the standby tunnel is a tunnel strictly displaying the path. The embodiment of the invention further provides a corresponding node and a storage medium. According to the technical scheme, the path which does not pass through the main cross-domain node is calculated in advance to serve as the standby tunnel, the standby tunnel is a tunnel strictly displaying the path, when the main cross-domain node breaks down, the transmission path of the service is directly switched to the standby tunnel, and the network reliability is improved.

The invention provides a LoRa power detection method and device and a transmitting circuit, and relates to the technical field of communication. The LoRa power detection method and device are appliedto the transmitting circuit, the transmitting circuit comprises a LoRa module, a power detection circuit and a radio frequency front end, the power detection circuit is arranged at the position closeto the radio frequency front end, and the method comprises the steps of: obtaining the actual value of the current transmitting power through the power detection circuit; detecting the actual value ofthe current transmitting power to obtain a power error value; and based on the power error value, performing emission compensation through the LoRa module. The condition of inaccurate transmitting power caused by transmitting power open-loop control is relieved; and the network reliability of the LoRa system is improved.

The invention belongs to the technical field of network communication and in particular relates to a multi-homing networking method of dispatch stations, and a network structure; a plurality of switches and a plurality of dispatch stations are included, wherein the switches are connected to one another by means of two interfaces to form a loop network; each dispatch station is connected with the interface of a switch; each dispatch station is set to regularly use three time slots in the accessed network; each dispatch station belongs to the nearest switch preferably; when the load of the attractive switch of the dispatch station exceeds a threshold value or fails, the attribute of the dispatch station is dynamically adjusted to the nearest switch except the switch which has the load of exceeding the threshold value or fails; after the fault recovery of the original attributive switch, the dispatch station belongs to the switch again. The network reliability is strengthened and the networking cost is reduced.