Abstract: Embodiments of this application relate to the communication field, and disclose a method, a device, and a system for transmitting a node identifier, to reduce a limitation on delivery of an SR POLICY route and improve network performance The method includes: A forwarding device sends a node identifier to a controller. The forwarding device receives a first SR POLICY route from the controller, where a target attribute of the first SR POLICY route is the node identifier. The forwarding device determines that the node identifier matches the target attribute of the first SR POLICY route, and forwards a traffic packet according to the first SR POLICY route.

Abstract: A method, a network device, and a system for delivering a message used for RPD are disclosed. In the solution provided in this application, a second network device may deliver a message used for route policy distribution (RPD) to a first network device. The message includes a route policy including a match condition field and an action field. When detecting that route information of a border gateway protocol (BGP) route matches a target feature carried in the match condition field, the first network device may automatically update a route attribute of the BGP route based on a route attribute carried in the action field. The first network device may automatically update the route attribute of the BGP route according to the route policy included in the message delivered by the second network device, and operation and maintenance personnel does not need to perform manual configuration.

Abstract: A route sending method and a device are provided. The method includes: A second network device receives a first route sent by a first network device, where the first route includes an IP address of a source network device and first identification information identifying that an IP address of the first network device belongs to a first type, and the first network device is a next-hop network device of the source network device. The second network device sends the first route, where the first route is a route determined by the second network device based on a first route group, and the first route group is determined based on the IP address of the source network device and the first type, so that routes having the same IP address of the source network device but different types of next-hop addresses can be allocated to different route groups.

Abstract: A route processing method is implemented by a first PE device and includes receiving a VPN route that includes a second SRv6 VPN SID and a third SRv6 VPN SID from a second PE device; determining that the second SRv6 VPN SID is the same as a first SRv6 VPN SID; and establishing a second path based on the third SRv6 VPN SID, where when a first path directly connected to the first PE device and the second CE device is faulty, the second path is used by the first PE device to forward a packet to the second CE device.

Abstract: This invention relates to the nano metal material preparation technology field, especially to the preparation method of one kind, of nano-rings. This invention uses polyvinyl pyrrolidone of different molecular weights as surface-protecting agent and dissolves silver nitrate in the low molecular weight polyvinyl pyrrolidone ethylene glycol solvent under frozen conditions. Frozen conditions can slow down or inhibit silver ions from being reduced to zero-valent silver, to generate silver nanoparticles coated and complexed with both low and high molecular weight polyvinyl pyrrolidone. Polyvinyl pyrrolidone of different molecular weight shows different selective absorption of silver, and different stability makes it affect the speed of growth of silver atoms along different crystal faces to different extent, which is better for silver nano-ring production, with higher yield.

Abstract: Disclosed are a paver control system, a paver control method and a paver. The paver control system includes: an image acquisition device provided on the paver for acquiring image information of an execution device of the paver; a controller provided on the paver and electrically connected with the image acquisition device and the execution device for controlling the execution device to operate according to the image information acquired by the image acquisition device; and the execution device is provided on the paver for operating under a control of the controller. The execution device includes at least one of a driving mechanism, a prompting device and a material distributing device.

Abstract: A method includes a first provider edge (PE) device sending, to a second PE device, a media access control (MAC) route learned from a customer edge (CE) device and a virtual local area network (VLAN) identifier, wherein the second PE device generates a MAC forwarding entry based on the MAC route and the VLAN identifier, where the MAC forwarding entry is used to directly forward, using the CE device, a packet whose destination MAC address is the CE device or a MAC address of a terminal device accessing the CE device. An outbound interface identifier included in the MAC forwarding entry is an identifier of an interface connected to the CE device.

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: The present disclosure discloses a method for inverting aerosol components using a LiDAR ratio and a depolarization ratio, including: S1. identifying sand dust, a spherical aerosol and a mixture of the sand dust and the spherical aerosol based on a depolarization ratio; S2. calculating a proportion of the sand dust in the mixture of the sand dust and the spherical aerosol; and S3. identifying soot and a water-soluble aerosol in the spherical aerosol based on a LiDAR ratio. In the present disclosure, only a wavelength with a polarization channel is needed, to identify the aerosol components, achieving high accuracy with low detection costs.

Abstract: A routing information processing method and apparatus. The method includes a first network device determines a first segment identifier corresponding to a second network device and a first locator. The first network device determines a second segment identifier corresponding to a third network device and a second locator. The first network device sends routing information that includes the first segment identifier and the second segment identifier. A fourth network device advertises mirror routing information specific to the first network device, where the mirror routing information includes the second segment identifier or the second locator.

Abstract: A path verification method includes a network device obtains path information of a packet forwarding path passing through a third autonomous system (AS), a second AS, and a first AS in sequence, and the third AS, the second AS, and the first AS are sequentially adjacent. The network device determines a first business relationship of a first AS pair and a second business relationship of a second AS pair, where the first AS pair includes the first AS and the second AS that are sequentially arranged, and the second AS pair includes the second AS and the third AS that are sequentially arranged. The network device determines, based on the first business relationship and the second business relationship, whether the packet forwarding path is valid.

Abstract: A method for updating route information includes a monitored network element establishes a Border Gateway Protocol (BGP) Monitoring Protocol (BMP) connection to a monitoring network element, and sends a first message to the monitoring network element when detecting a synchronization requirement of BGP route information, where the first message instructs the monitoring network element to update a BGP route information set, and the BGP route information set includes at least one piece of BGP route information. The first message indicates an update set, and the update set updates the BGP route information set.

Abstract: A first network device includes a processor and a memory having instructions stored thereon that, when executed by the processor, cause the first network device to: obtain a first virtual private network (VPN) route sent by a second network device. The first VPN route includes first identification information that uniquely identifies a first VPN instance in the second network device. The first network device is also caused to generate a second VPN route according to a second VPN instance accessing a third network device and the first VPN route. The second VPN route carries second identification information and routing information of the first VPN route. The second identification information uniquely identifies the second VPN instance in the third network device. The first identification information is different from the second identification information. The first network device is further caused to send the second VPN route to the third network device.

Abstract: A method includes: establishing, by a first network device, a first BMP session with a second network device, and establishing a second BMP session with a third network device; receiving a first BGP route set sent by the second network device, where the first BGP route set includes a BGP route sent by the second network device to the third network device; receiving a second BGP route set sent by the third network device, where the second BGP route set includes the BGP route received by the third network device from the second network device; and when detecting that the second BGP route set includes a first BGP route but the first BGP route set does not include the first BGP route, determining the first BGP route as an unavailable route.

Abstract: The present disclosure relates to a mechanical stretching device for a movable seat unit, and a movable seat unit thereof. The mechanical stretching device includes: a linkage support that comprises a support structure configured to support the mechanical stretching device on ground and a linkage structure attachable to a seating portion of the seat unit; a back mechanism that is pivotally connected to the linkage support and is configured to attach to a backrest of the seat unit; and a leg stretching structure including a footrest element, and the leg stretching structure is pivotally connected to the linkage support, and the footrest element is attached to a footrest of the seat unit. The mechanical stretching device is configured to implement a sequential conversion or a reverse sequential conversion of the seat unit from a sitting state to a relaxing state and to a lying state.

Abstract: This application discloses a routing information sending method and apparatus. The method includes: receiving, by a first network node, routing information sent by a second network node, and determining the routing information corresponds to a tenant identifier; and then determining, by the first network node, that a third network node belongs to a tenant corresponding to the tenant identifier, and sending the routing information to the third network node in response to determining that the third network node belongs to the tenant corresponding to the tenant identifier.

Abstract: Embodiments of this application disclose an information reporting method, an information processing method, and a device. According to the information reporting method, a network device obtains Border Gateway Protocol (BGP) information of a network device. The network device sends a BGP Monitoring Protocol (BMP) notification message to a first device, where the BMP notification message carries the BGP information of the network device.

Abstract: The disclosure relates to fatty diols and recombinant microorganisms for producing them. More particularly, the disclosure relates to recombinant microorganisms engineered to produce fatty diols via fermentation. Further encompassed is a process that uses the microorganisms to produce fatty diols from a simple carbon source.

Abstract: A method includes a second provider edge (PE) device sending, to a first PE device, a media access control (MAC) route learned from a customer edge (CE) device, wherein the first PE device generates a MAC forwarding entry based on the MAC route, wherein the first PE device may forward, based on the MAC forwarding entry using the CE device, a packet whose destination MAC address is the CE device or a MAC address of a terminal device accessing the CE device, and wherein an outbound interface identifier included in the MAC forwarding entry is an identifier of an interface connected to the CE device.