Patent application number | Description | Published |
20090217347 | METHOD AND NETWORK SYSTEM FOR NEGOTIATING A SECURITY CAPABILITY BETWEEN A PCC AND A PCE - A method and a network system for negotiating a security capability between a path computation client (PCC) and a path computation element (PCE) are described. The method includes the steps as follows. The PCE sends a packet carrying security policy capability information to the PCC. After receiving the packet, the PCC acquires a security policy capability supported or required by the PCE or a security policy capability supported by both of the PCE and the PCC. In various embodiments of the present invention, negotiation of PCC-PCE and PCC-PCC may be performed by sending the packet carrying the security policy capability information, thereby greatly simplifying the security policy configuration between PCC-PCE and PCE-PCE, and simplifying the complexity in PCE deployment. | 08-27-2009 |
20090219806 | METHOD, APPARATUS, AND SYSTEM FOR PROTECTING HEAD NODE OF POINT TO MULTIPOINT LABEL SWITCHED PATH - A method for protecting the head node of a Point to Multipoint Label Switched Path (P2MP LSP) includes: a Backup Head Node (BHN) establishes a backup LSP from the BHN to all Merge Points (MPs), where the backup LSP bypasses a Master Head Node (MHN); the MHN forwards data along an LSP already established between the MHN and the MPs; when a head node switchover condition is met, the BHN is switched to a master mode to forward data along the backup LSP established between the BHN and the MPs. A system and apparatus for protecting the head node are also provided. With the head node protection solution provided by the present disclosure, the head node is well protected and the protection mechanisms for the P2MP LSP are therefore more complete. This can further promote the scale deployment of P2MP systems. | 09-03-2009 |
20090274159 | METHOD AND APPARATUS FOR ADVERTISING BORDER CONNECTION INFORMATION OF AUTONOMOUS SYSTEM - A method and an apparatus for advertising border connection information of autonomous system are disclosed. Moreover, the method includes: establishing and maintaining, by a border node of the autonomous system, the border connection information of the autonomous system; flooding the border connection information within the autonomous system; and receiving, by nodes of the autonomous system, the border connection information. The method and the apparatus for advertising border connection information of autonomous system of embodiments of the present invention may adapt to dynamic change of network topology, and dynamically advertise the border connection information of the autonomous system within the system in time, so as to optimize networks and improve quality of service of the networks. | 11-05-2009 |
20100251037 | Method and apparatus for failure notification - A method and an apparatus for failure notification are provided. The method includes: sending, when it is detected that a failure occurs in a multicast label switch path, failure information to a downstream node of a multicast tree where a failed point locates, where the multicast label switch path is established based on a multicast label distribution protocol; and forwarding the failure information through the downstream node, where the failure information arrives at a leaf node of the multicast tree where the failed point locates. According to the method and the apparatus for failure notification of the present invention, finally, the failure information is transmitted to a leaf node. After the failure information is obtained, the leaf node may take appropriate measure to ensure the normal service and improve the reliability of the network. | 09-30-2010 |
20110007749 | Method and Apparatus for Advertising Border Connection Information of Autonomous System - A method and an apparatus for advertising border connection information of autonomous system are disclosed. Moreover, the method includes: establishing and maintaining, by a border node of the autonomous system, the border connection information of the autonomous system; flooding the border connection information within the autonomous system; and receiving, by nodes of the autonomous system, the border connection information. The method and the apparatus for advertising border connection information of autonomous system of embodiments of the present invention may adapt to dynamic change of network topology, and dynamically advertise the border connection information of the autonomous system within the system in time, so as to optimize networks and improve quality of service of the networks. | 01-13-2011 |
20110310727 | TROUBLESHOOTING METHOD AND APPARATUS - A troubleshooting method and a troubleshooting apparatus are disclosed. The troubleshooting method includes: sending a forward detection message to at least one node on a path to be detected, where the forward detection message carries information about a forward path to be detected and information about a backward path to be detected; and detecting faults according to a backward detection message returned by the at least one node. With the troubleshooting method and the troubleshooting apparatus disclosed herein, troubleshooting operations such as fault detection and fault location can be performed for the forward path and the backward path that require bidirectional path detection. | 12-22-2011 |
20120066368 | METHOD AND APPARATUS FOR ABSTRACTING LOGICAL TOPOLOGY INFORMATION OF PEER-TO-PEER NETWORK - The present invention provides a method and an apparatus for abstracting logical topology information of a Peer-to-Peer (P2P) network. The method includes: obtaining a set of Points of Presence (POPs) of peer clients in the P2P network; using a relevant algorithm of a routing protocol to calculate a best path between any two POPs in the set of POPs and a weight value of the best path; and collecting calculation results of the best path and the weight value that are obtained on each POP to obtain a set of abstract logical topology records of the P2P network. The embodiments of the present invention provide a universal and efficient method for abstracting logical topology information, which greatly reduces network topology information that needs to be transmitted, mitigates a risk of exposing lower-layer network topology information, and transmits the network topology information to a P2P application server securely and concisely. | 03-15-2012 |
20130250966 | Method and Network Device for Distributing Multi-Protocol Label Switching Labels - A method and network device for distributing Multi-Protocol Label Switching (MPLS) labels are provided by the present invention. The method for distributing the MPLS labels includes: a first device receives a Border Gateway Protocol (BGP) protocol message transmitted from a second device, wherein the BGP protocol message carries a service identifier of the second device; the first device establishes, according to the service identifier of the first device and the service identifier of the second device, a corresponding relationship between the first device and the second device; the first device distributes a MPLS label for the corresponding relationship. The present invention realizes that the MPLS labels are distributed for some type of the specific logical relationship between the two nodes in the BGP protocol, so that the network devices running the BGP protocol can efficiently obtain the MPLS label corresponding to the specific logical relationship. | 09-26-2013 |
20130266008 | PACKET FORWARDING METHOD AND NETWORK DEVICE - Embodiments provide a packet forwarding method and a network device, which are applicable to a system that includes a source node, a destination node, a first device, and a second device, where L1, L2, L3 and L4 are established, and the packet forwarding method includes: receiving, by the second device through a universal tunnel, a packet to be sent to a destination node, where the packet carries service data and one of identifiers of the L1, the L2, the L3, and the L4; according to the identifier carried in the packet, querying a preconfigured logical channel mapping in the second device, determining that a forwarding channel is the L4, and sending the service data in the packet to the destination node through the L4. By using the technical solutions, the number of ICB PWs can be reduced. | 10-10-2013 |
Patent application number | Description | Published |
20120014385 | METHOD AND APPARATUS FOR UPDATING BINDING RELATIONSHIP OF ASSOCIATED BIDIRECTIONAL LABEL SWITCHED PATH - Embodiments of the present invention provide a method for updating a binding relationship of an associated bidirectional label switched path (Bidi-LSP). The method includes: sending a request packet to a destination node, where the request packet carries a parameter for updating the binding relationship and is designed to request updating of the binding relationship; receiving a reply packet from the destination node, where the reply packet carries a binding updating processed result and is designed to respond to the request packet; and updating the binding relationship of the associated Bidi-LSP according to the binding updating processed result carried in the reply packet. | 01-19-2012 |
20120099440 | METHOD, DEVICE, AND SYSTEM FOR WITHDRAWING ROUTES - The present invention relates to the field of communications and discloses a method, device, and system for withdrawing routes. When routes are withdrawn, by carrying route withdrawal related information in a route update message and withdrawing routes according to the route withdrawal related information, a Border Gateway Protocol (BGP) path detection procedure is avoided and the time of network topology convergence is shortened. Further, by carrying identifiers information of routes to be withdrawn in the update message, specific routes can be withdrawn in a scenario where there are multiple BGP routes; by carrying characteristic information of routes to be withdrawn in batches in the update message, a group of routes with the common characteristic can be withdrawn in batches; and by carrying route withdrawal policy information in the update message, the collaboration between BGP peers may be optimized, and the quality and performance of the network may be improved. | 04-26-2012 |
20120110089 | METHOD, DEVICE AND SYSTEM FOR PROCESSING A NETWORK MAPPING IDENTIFIER, AND PEER SELECTION METHOD - A method, a device and a system for processing a network mapping identifier, and a peer selection method are provided, in which the method includes: obtaining topology information of a network, in which the topology information includes a relation between nodes in the network; generating a network mapping identifier capable of indicating a relation between a peer and other peers in the network according to the topology information; and combining the generated network mapping identifier and an Internet Service Provider (ISP) identifier into a network mapping identifier, and allocating the network mapping identifier to the peer. Through the method, the device and the system, the network topology information of an ISP is protected from being exposed, a load on the ISP is reduced, and private information of a peer-to-peer (p2p) application system is capable of being protected. | 05-03-2012 |
20120320796 | METHOD AND APPARATUS FOR ADVERTISING BORDER CONNECTION INFORMATION OF AUTONOMOUS SYSTEM - A method and an apparatus for advertising border connection information of autonomous system are disclosed. Moreover, the method includes: establishing and maintaining, by a border node of the autonomous system, the border connection information of the autonomous system; flooding the border connection information within the autonomous system; and receiving, by nodes of the autonomous system, the border connection information. The method and the apparatus for advertising border connection information of autonomous system of embodiments of the present invention may adapt to dynamic change of network topology, and dynamically advertise the border connection information of the autonomous system within the system in time, so as to optimize networks and improve quality of service of the networks. | 12-20-2012 |
20130088994 | METHOD AND APPARATUS FOR MEASURING PERFORMANCE OF MULTI-SERVICE IN TUNNEL - Embodiments of the present invention provide a method for measuring performance of multi-service in a tunnel, including: receiving a measurement message corresponding to a service packet, where a priority of the measurement message is the same as that of the service packet, and the measurement message includes at least one of the three: a packet loss measurement parameter, a delay measurement parameter, and a variation measurement parameter; and measuring performance of a service in a tunnel according to a measurement parameter in the measurement message. According to the embodiments of the present invention, a problem that performance measurement cannot be performed for different services transmitted in a tunnel in the prior art may be solved. | 04-11-2013 |
20140003247 | METHOD, NETWORK NODE, AND NETWORK SYSTEM FOR OFFLOADING NETWORK TRAFFIC | 01-02-2014 |
20140022890 | VPLS FAST REROUTING METHOD AND DEVICE - Embodiments of the present invention provide a VPLS fast rerouting method and device. The method includes: generating, by a remote PE, a backup forwarding entry; and when a designated forwarder or a designated forwarder pseudo wire in a multihoming protection group fails, or the designated forwarder is switched in the multihoming protection group, forwarding, by the remote PE, a data packet according to the backup forwarding entry, thereby avoiding broadcasting the data packet to all remote PEs that belong to the same VPLS instance, and further reducing a waste of bandwidth resources in a backbone network and processing resources of the PE. | 01-23-2014 |
20140036689 | LABEL-BASED MEASUREMENT METHOD, APPARATUS, AND SYSTEM - Embodiments of the present invention provide a label-based measurement method, apparatus, and system. The method includes: allocating at least two labels to the same FEC; obtaining a label insertion mode for the at least two labels; receiving data packet, where one of the at least two labels is inserted in the data packet; and performing, according to the label insertion mode and the data packet, performance measurement on a network that the FEC passes through. By using the technical solutions provided in the embodiments of the present invention, a problem of network bandwidth occupation caused by inserting a test packet and an OAM packet during performance measurement and a problem of measurement result inaccuracy caused by OAM packet loss may be solved. | 02-06-2014 |
20140185459 | TROUBLESHOOTING METHOD AND APPARATUS - A troubleshooting method includes sending a forward detection message to at least one node on a path to be detected. The forward detection message carries information about a forward path to be detected and information about a backward path to be detected. Faults are detected according to a backward detection message returned by the at least one node. | 07-03-2014 |
20140185462 | TROUBLESHOOTING METHOD AND APPARATUS - A troubleshooting method includes sending a forward detection message to at least one node on a path to be detected. The forward detection message carries information about a forward path to be detected and information about a backward path to be detected. Faults are detected according to a backward detection message returned by the at least one node. | 07-03-2014 |
20140301183 | Method, Network Device, and System for Synchronization Between Network Devices - A method, a network device, and a system for synchronization between network devices are provided. The method includes: establishing, by a first network device, an inband synchronization channel to a second network device in a MPLS-TP network, where the inband synchronization channel is a channel on a data plane, and the first network device and the second network device are included in a same backup group; sending, a first synchronization packet to the second network device through the inband synchronization channel, where the first synchronization packet carries synchronization information of the first network device, and the synchronization information of the first network device includes configuration information or status information of the first network device. The present disclosure can implement synchronization between network devices on an MPLS-TP network that does not have a control plane. | 10-09-2014 |
20140348028 | METHOD FOR CREATING RING NETWORK LABEL SWITCHED PATH, RELATED DEVICE, AND COMMUNICATIONS SYSTEM - Embodiments of the present invention disclose a method for creating a ring network label switched path. The method includes: receiving, by a first node, a first Path message used for creating a first label switched path from a second node; allocating a first label to the first label switched path; sending a first Resv message carrying the first label to the second node; and when the first node receives a second Path message and determines that a destination node of the second label switched path is the same as that of the first label switched path, allocating the first label to the second label switched path; and sending a second Resv message carrying the first label to the second node. Solutions of the embodiments of the present invention helps reduce the number of created ring network label switched paths and maintenance complexity. | 11-27-2014 |
20150341250 | METHOD, DEVICE AND SYSTEM FOR PROCESSING OAM PACKET - Embodiments of the present application provide a method, device, and system for processing an OAM packet, where the method for processing an OAM packet includes: receiving, by a first network device, an operation, administration and maintenance (OAM) instruction sent by an OAM server, where the OAM instruction carries first format information and a first sending target identifier, where the first format information is used for indicating an OAM packet format; and generating, by the first network device, a first OAM packet according to the first format information, and sending the first OAM packet to a network device indicated by the first sending target identifier. The method, device, and system for processing an OAM packet provided in the embodiments of the present application achieve adaptability to different OAM standards without changing of a hardware structure of a network device, and improve OAM processing flexibility. | 11-26-2015 |
20150358221 | METHOD AND APPARATUS FOR MEASURING PERFORMANCE OF MULTI-SERVICE IN TUNNEL - Embodiments of the present application provide a method for measuring performance of multi-service in a tunnel, including: receiving a measurement message corresponding to a service packet, where a priority of the measurement message is the same as that of the service packet, and the measurement message includes at least one of the three: a packet loss measurement parameter, a delay measurement parameter, and a jitter measurement parameter; and measuring performance of a service in a tunnel according to a measurement parameter in the measurement message. According to the embodiments of the present application, a problem that performance measurement cannot be performed for different services transmitted in a tunnel in the prior art may be solved. | 12-10-2015 |
Patent application number | Description | Published |
20130243343 | METHOD AND DEVICE FOR PEOPLE GROUP DETECTION - A method and a device for people group detection, relating to the field of image processing includes acquiring at least one corner and foreground region in video data; computing, according to said corner and foreground region, to obtain at least one cluster; constructing at least one region of people group according to said cluster. The device includes an acquisition module, a clustering module, and a construction module. Automatic people group detection is realized that is independent of the location detection of people and can be applied to any scene including complicated ones, and thus user demands can be better satisfied. | 09-19-2013 |
20130251197 | METHOD AND A DEVICE FOR OBJECTS COUNTING - A method and a device for objects counting in image processing includes acquiring the depth image of any one frame; detecting objects according to the depth image; associating the identical object in different frames to form a trajectory; and determining the number of objects according to the number of trajectories. The devices include an acquisition module for acquiring the depth image of any one frame; a detection module for detecting objects according to the depth image; an association module for associating the identical object in different frames to form a trajectory; a determining module for determining the number of objects according to the number of trajectories. The objects are detected according to the depth image. The identical object in different frames is associated to form a trajectory and the number of objects is determined according to the number of trajectories. | 09-26-2013 |
20130251246 | METHOD AND A DEVICE FOR TRAINING A POSE CLASSIFIER AND AN OBJECT CLASSIFIER, A METHOD AND A DEVICE FOR OBJECT DETECTION - A method and a device for training a pose classifier and an object classifier, and a method and a device for objection detection, relating to the field of image processing are provided. The object detection method includes acquiring input image samples; performing pose estimation processing on said input image sample according to said pose classifier; and performing object detection on the processed input image sample according to said pose classifier to acquire the location information of the object, wherein said object is an object with joints. Objects in different poses can be detected and therefore the object hit rate is increased. | 09-26-2013 |
20130251252 | METHOD AND A DEVICE FOR EXTRACTING COLOR FEATURES - A method and device for extracting color features, relating to the field of image processing includes converting an original image into sub-images corresponding to channels in a color space, dividing the sub-images into a plurality of cells with identical size, and calculating the color histograms of each of the plurality of cells. A cell and neighboring cells thereof are defined as the effective scope of the cell, and a feature vector of the cell is determined according to a degree of similarity of the color histograms of every two neighboring cells in the effective scope. The feature vectors of the cells in the sub-images are concatenated to obtain feature vectors of the sub-images, and a feature vector of the original image is obtained according to the feature vectors of the sub-images. | 09-26-2013 |
Patent application number | Description | Published |
20110201191 | METHOD FOR NONDESTRUCTIVE LIFT-OFF OF GaN FROM SAPPHIRE SUBSTRATE UTILIZING A SOLID-STATE LASER - A method for nondestructive laser lift-off of GaN from sapphire substrates utilizing a solid-state laser is disclosed in the present invention, wherein, a solid-state laser is used as the laser source, and a small laser-spot with a circumference of 3 to 1000 micrometers and a distance of two farthest corners or a longest diameter of no more than 400 micrometers is used for laser scanning point-by-point and line-by-line, wherein the energy in the small laser-spot is distributed such that the energy in the center of the laser-spot is the strongest and is gradually reduced toward the periphery. According to the present invention, a nondestructive laser lift-off with a small laser-spot is achieved, and a scanning mode of the laser lift-off is improved, thereby a lift-off method without the need of aiming is achieved. As a result, the laser lift-off process is simplified, and the efficiency is improved while the rejection rate is reduced, such that the obstacles of the industrialization of the laser lift-off process are removed. | 08-18-2011 |
20140357053 | Method for Preparing Composite Substrate Used For GaN Growth - A method for preparing a composite substrate for GaN growth includes: growing a GaN monocrystal epitaxial layer on a sapphire substrate, bonding the GaN epitaxial layer onto a temporary substrate, lifting off the sapphire substrate, bonding the GaN epitaxial layer on the temporary substrate with a thermally and electrically conducting substrate, shedding the temporary substrate, and obtaining the composite substrate in which the GaN layer having a surface of gallium polarity is bonded to the conducting substrate. If the GaN layer on the sapphire substrate is directly bonded to the conducting substrate, after the sapphire substrate is lifted off, a composite substrate in which a GaN epitaxial layer having a surface of nitrogen polarity is bonded to the conducting substrate. The disclosed composite substrates have homoepitaxy and improved crystal quality; they can be used for forming LED and other devices at greatly reduces costs. | 12-04-2014 |
20140377507 | Composite Substrate Used For GaN Growth - The present application discloses a composite substrate used for GaN growth, comprising a thermally and electrically conductive layer ( | 12-25-2014 |
20150132542 | Composite substrate with a protective layer for preventing metal from diffusing - The present application discloses a composite substrate with a protective layer for preventing metal from diffusing, comprising: a thermally and electrically conductive layer ( | 05-14-2015 |