Abstract: A packet processing method includes a first device that obtains a forwarding entry, where the forwarding entry includes a match entry and an action entry, and the match entry includes an identifier of one or more extension packet headers. The first device receives a first packet. The first device determines that the first packet includes an extension packet header that matches the match entry. The first device processes the first packet based on the action entry in response to determining that the first packet includes the extension packet header that matches the match entry.

Abstract: A method includes a network device that obtains Border Gateway Protocol (BGP) route information, where the BGP route information includes a target route prefix; obtains, based on the target route prefix, a region identifier of a region to which the target route prefix actually belongs; and verifies the BGP route information based on the target route prefix and the region identifier of the region to which the target route prefix actually belongs.

Abstract: Systems and methods are described for automated anomaly detection. For example, the system receives various types of unlabeled data and determines, through an unsupervised machine learning model, a label for the data. The labels are provided to a supervised machine learning model during a first training process. The system also performs unsupervised labeling and supervised labeling of network flows to infer anomalous network traffic. When new data is received, the supervised machine learning model is executed during an inference process to cluster the new data in accordance with the labels that were determined by the unsupervised machine learning model. In some examples, the system may combine the unsupervised machine learning model with a supervised machine learning model to perform automated anomaly detection.

Abstract: Disclosed are nucleic acid constructs comprising a nucleic acid sequence encoding a vitelliform macular dystrophy-2 (VMD2) promoter operably linked to a nucleic acid sequence encoding Rap1a. Disclosed are vectors comprising the nucleic acid constructs disclosed herein. Disclosed are compositions comprising the disclosed nucleic acid constructs or vectors. Also disclosed are methods of treating a subject having age-related macular degeneration comprising administering one or more of the disclosed nucleic acid constructs, vectors, or compositions to a subject in need thereof.

Abstract: This application discloses a VXLAN packet transmission method, a network device, and a system. After receiving a first packet, a first network device obtains a VNI corresponding to the first packet. The first network device encapsulates the VNI in an IPV6 header by encapsulating the IPV6 header in the first packet, to obtain a second packet. The first network device sends the second packet to a second network device, so that the second network device forwards the packet based on the VNI included in the IPV6 header. In this application, the IPV6 header is used to carry the VNI, and no additional UDP header needs to be encapsulated to carry the VNI.

Abstract: In a loop avoidance communications method, a first provider edge (PE) device sends a first identifier to a second PE device through a first interface; the first PE device receives, from the second PE through the first interface, a data packet including the first identifier. Then, the first PE device determines that a second interface associated with the first identifier is in a faulty state. In response to determining that the second interface is in the faulty state, the first PE device avoids sending the data packet to the second PE device through the first interface. The first PE device connects to a customer edge (CE) device using the second interface.

Abstract: An information processing method. The method may be applied to, for example, a target apparatus. The target apparatus may obtain a BGP message, where an address family of the BGP message is a BGP LS address family, the BGP message includes indication information, and the indication information indicates a link type of a link between a first point of presence (POP) in an SD-WAN network and a second POP in the SD-WAN network. In this solution, the BGP message of the LS address family may be used to carry the type of the link between the POPs, to facilitate subsequent service path orchestration for a service based on the type of the link between the POPs, so that service requirements are met.

Abstract: In a packet processing method, a network device obtains a first packet. The network device determines a first index value based on address information of the first packet and a neural network model. The network device determines, from an action information table based on the first index value, action information corresponding to the first packet, where the action information table includes at least one entry, and each entry corresponds to an index value and a piece of action information. The network device processes the first packet based on the action information corresponding to the first packet.

Abstract: A packet processing method includes a second device that sends a first packet to a first device, where the first packet includes a first segment routing header (SRH). After receiving the first packet, the first device determines whether the first packet includes a first segment identifier. When the first packet includes the first segment identifier, the first device deletes the first SRH, performs an encapsulation operation to generate a second packet, and forwards the second packet. That is, when a function or an indication corresponding to the first segment identifier is to perform the encapsulation operation, after receiving the first packet, the first device may delete the first SRH in the first packet based on an actual case, and perform the encapsulation operation to generate the second packet, where the second packet does not include the first SRH.

Abstract: A system for determining a respiratory rate of a subject comprising a camera, a secondary sensor, and a controller is disclosed. The camera captures image data of the subject. The secondary sensor captures secondary sensor data corresponding to the subject. The system further includes a controller. The controller is configured to: (1) generate, via a respiratory rate model, image-based respiratory data based on the image data; (2) interpolate and/or resample the image-based respiratory data to generate an estimated respiratory waveform; (3) interpolate and/or resample the secondary sensory data to generate an estimated secondary waveform; (4) generate, via an autoregressive model, polar image-based respiratory data based on the estimated respiratory waveform; (5) generate, via the autoregressive model, polar secondary data based on the estimated secondary waveform; (6) determine a respiratory rate of the subject based on the polar image-based respiratory data and the polar secondary data.

Abstract: An aromatic compound protein inhibitor, a stereoisomer, a tautomer, or a pharmaceutically acceptable salt thereof, a method related to the preparation and use of the compound, a pharmaceutical composition comprising the compound, and a relevant cancer treatment method. The aromatic compound has selective and significant inhibitory activity on a protein, and has a wide application prospect in the field of tumor treatment.

Abstract: A catalyst shaped body has a column body extending in a longitudinal direction. Its cross section has a central through hole, at least four first corners and a same number of first recesses. The first corners are arranged at the same angular intervals in a circumferential direction to define a first circumscribed circle of an outer contour of the catalyst shaped body, each first corner is tangent to the first circumscribed circle. The first corners and the first recesses are alternately arranged in the circumferential direction. The first corners are an outwardly convex part of a first ellipse, and the first recesses are inwardly concave arcs tangent to the two adjacent first corners, so as to avoid bite between the first corners and/or the first recesses of the catalyst shaped body and the first recesses and/or the first corners of adjacent catalyst shaped bodies.

Abstract: Ultrasound image devices, systems, and methods are provided. In one embodiment, a guidance system for obtaining a medical image includes a processor configured to obtain a motion control configuration for repositioning an imaging device from a first imaging position to a second imaging position with respect to a subject's body, the motion control configuration obtained based on a predictive network, an image of the subject's body captured while the imaging device is positioned at the first imaging position, and a target image view including a clinical property; and a display in communication with the processor and configured to display an instruction, based on the motion control configuration, for operating a control component in communication with the imaging device such that the imaging device is repositioned to the second imaging position.

Abstract: A contact switch, a safety door and an elevator system. The contact switch includes a plug and a socket, the plug including a contact head configured in a plate shape, the socket including a housing, an elastic member and a contact point arranged in the housing, the elastic member includes an avoidance portion and a free end extending toward the contact head relative to the avoidance portion, and the contact point is fixed to the free end and extends toward the contact head relative to the free end, when the plug is inserted into the socket, the contact head contacts the contact point to turn on the contact switch and to be spaced apart from the avoidance portion.

Abstract: Embodiments of this application disclose an information processing method, applied to a first network device. The first network device may determine that a first specific route sent by a second network device to the first network device is unavailable, and generate a first message. The first message includes a route prefix of the first specific route, next-hop information, and a route prefix of an aggregated route, the aggregated route corresponds to the first specific route and a second specific route, and the second specific route is available. The next-hop information indicates a port that is on the first network device and that is used for communicating with a third network device. After generating the first message, the first network device may send the first message to the third network device, so that the third network device determines that the first specific route corresponding to the aggregated route is unavailable.

Abstract: An ultrasound portable system (10) and method comprise acquiring ultrasound images, via a smart device (14) and ultrasound probe (20), over a portion of an ultrasound scan protocol and/or ultrasound exam and presenting at least one acquired ultrasound image in an image space portion (24) of a display (16). Digital images are acquired, via a camera (18), of at least a device operator's head pose, and left and right eyes within respective digital images. Eye-gaze focus point locations on the smart device are determined within a combination of image space and control space (26) portions of the display via an image processing framework (36) configured to track the device operator's gaze and eye movement determined from the acquired digital images.

Abstract: This application discloses a communication method and a related apparatus, and relates to the field of communication technologies. The method is applied to a software defined wide area network (SD-WAN) overlay network. A customer premise equipment (CPE) autonomously generates an SD-WAN overlay routing table, so that communication reliability and flexibility are improved. A route reflector (RR) specifies an overlay multicast reverse path forwarding (RPF) route to the CPE to implement SD-WAN overlay multicast communication, and the CPE does not need to perform path computation autonomously, so that a computing power requirement of the CPE is reduced. An identifier of the CPE and an identifier of a site are carried in a multicast join message to implement the SD-WAN overlay multicast communication. A standard IP header is carried in a multicast service packet to implement the SD-WAN overlay multicast communication, so that generalization, applicability, and compatibility are improved.

Abstract: Embodiments of this application disclose a method and an apparatus for transmitting a virtual private network segment identifier (VPN SID), and a network device. An egress node sends a VPN SID corresponding to the egress node to each node in a network, and indicates to each node to store the VPN SID of the egress node. In this way, both an ingress node and each intermediate node can sense and store the VPN SID. When a VPN service needs to be provisioned, because each node stores the VPN SID of the egress node, it is possible for each node to associate the VPN SID with a forwarding entry of the VPN service to be provisioned in a forwarding table, to implement VPN route convergence. In addition, for a of a VPN corresponding to the VPN SID and that is sent by a user side, both the ingress node and the intermediate node can guide forwarding of the packet based on a locally stored VPN SID, to implement VPN service-level control.

Abstract: A polymer contains a sulfonate group, a benzene ring, and an unsaturated double bond at the same time. The molar ratio of the sulfonate group, the benzene ring, and the unsaturated double bond is 3-8:5-20:10-120. The number average molecular weight of the polymer is 1000-15000 g/mol. The polymer, as a viscosity reducer, has a high resistance to high concentrations of calcium and magnesium ions, a good viscosity reduction effect on super heavy oil, and good natural sedimentation and dehydration properties. It is resistant to viscosity rebound, has good water solubility, and has a simple matching injection process, and is suitable for practical use in oil fields.