Abstract: User behavior data of multiple users is acquired, and multiple user eigenvalues of user behavior data of each user under preset multiple user behavior dimensions are extracted. A user eigenvector of each user is determined based on the multiple eigenvalues of this user. Multiple user classes are obtained by clustering the user eigenvectors of multiple users are clustered through a preset clustering algorithm. A central vector of each user class is determined based on the user eigenvectors included in this user class. A difference eigenvector of each user class is determined, wherein a distance between the difference eigenvector and a central vector of an aggregation class to which the difference eigenvector belongs is not within a preset distance range. A user characterized by the difference eigenvector is determined as an abnormal user.

Abstract: Roaming methods and hosts are provided. In the present disclosure, a TCP/IP connection established between a host and an opposite end is modified from binding a first IP address of the host in a current first network to binding a host address within the first IP address which does not change during host roaming, so that all parameters associated with the TCP/IP connection established between the host and the opposite end do not change when the host roams from the first network to a second network.

Abstract: A method and apparatus for establishing a fast-forwarding table are provided. The method comprises: when a communication packet is received, determining, according to matching rules of services set in a packet processing policy, a target service matching the communication packet; if a fast-forwarding table corresponding to the communication packet is not stored locally, obtaining a preset target priority of the target service, and determining a target resource utilization threshold corresponding to the target priority according to a preset correspondence between priorities and resource utilization thresholds; determining whether a current resource utilization is greater than the target resource utilization threshold; and establishing a fast-forwarding table corresponding to the communication packet if the current resource utilization is not greater than the target resource utilization threshold.

Abstract: Methods of processing a packet, APs, ACs and non-transitory machine-readable storage mediums are provided in examples of the present disclosure. In one aspect, an AP receives an Internet-of-Things data packet sent by an Internet-of-Things sensor, wherein a sensor identifier of the Internet-of-Things sensor is carried in the Internet-of-Things data packet; and sends the received Internet-of-Things data packet to an AC such that the AC processes the Internet-of-Things data packet based on the sensor identifier.

Abstract: Methods of processing a packet, APs, ACs and non-transitory machine-readable storage mediums are provided in examples of the present disclosure. In one aspect, an AP receives an Internet-of-Things data packet sent by an Internet-of-Things sensor, wherein a sensor identifier of the Internet-of-Things sensor is carried in the Internet-of-Things data packet; and sends the received Internet-of-Things data packet to an AC such that the AC processes the Internet-of-Things data packet based on the sensor identifier.

Abstract: Examples of the disclosure provide a smart angled mounting piece and an angled mounting piece assembly. By providing switching units and identification circuits in the smart angled mounting piece, when one or more of the switching units are triggered by the auxiliary member, an identification circuit electrically connected to the triggered switching unit and an identification circuit electrically connected to a switching unit that is not triggered collectively generate a logic signal characterizing the position at which the electronic device is installed to the cabinet, and the logic signal is transmitted to the electronic device through the communication module. The manager may know the position of the current electronic device in real time, without the need to specifically provide position acquisition elements on the cabinet, and without the need to install a separate management system on the back-end server, simplifying the difficulty of device management.

Abstract: Disclosed are a method and a device for controlling an EVPN route. According to an example of the method, when receiving an EVPN route from a second VTEP device, a first VTEP device checks whether the EVPN route carries a role attribute. When determining that the EVPN route carries a role attribute and the carried role attribute is a specified first role attribute value, the first VTEP device controls the distribution of the EVPN route according to a set route synchronization control strategy.

Abstract: Communication device board and a communication device are provided. A connector of the communication device board includes a fixed position and a contact position. The fixed position and the contact position; have different levels. The fixed position is fixedly connected one end of an inner side of a conductive resilient sheet. An outer side of the conductive sheet is provided with an insulating coating. When the fixed position fixedly connected to the end of the inner side of the conductive resilient sheet, and a mating gap between the connector of the communication device board and a corresponding communication device connector is smaller than a preset threshold range, A second end of the inner side of the conductive resilient sheet is in contact with the contact position (12).

Abstract: A memory of a network device is divided into first blocks, each first block being divided into second blocks, and each second block including a first storage space and second storage space. When a packet is stored, second blocks occupied by the packet are determined based on a packet length and a first storage space length, and the packet is stored into a first storage space of each of the second blocks. For each of the second blocks, a PD corresponding to the second block is generated, and stored into a second storage space of the second block. When a packet is read, the second blocks to be read are determined based on a start address of the packet. A packet fragment is read from a first storage space of the second blocks to be read, and the read packet segments are composed into the second packet to be sent.

Abstract: Provided are a method and a device for forwarding a video-on-demand flow, which may be applied to a network with virtualization of network functions. In an example of the method, for a Virtual Broadband Remote Access Server (vBRAS) Service Orchestrator (vBRASSO) managing at least one vBRAS in a vBRAS resource pool in the network with virtualization of network functions, if a particular vBRAS completes user authentication, the vBRASSO determines a Point Of Presence (POP) switch for forwarding a video-on-demand flow to the user based on the user information from the vBRAS, and notifies the POP switch of a route for forwarding the video-on-demand flow to the user in such a way that the POP switch advertises the route to a core router configured to receive the video-on-demand flow from a video-playing source in the network with virtualization of network functions.

Abstract: Methods, systems for preventing an APT attack and non-transitory machine-readable storage mediums are disclosed. In one aspect, communication data is obtained in a network, association analysis is performed for the communication data, threat data is obtained from the communication data based on an association analysis result, each piece of the obtained threat data is mapped to a corresponding APT attack phase based on a kill chain model; and for each piece of threat data, prevention is performed for a network entity associated with the piece of the threat data based on prevention strategies corresponding to the plurality of APT attack phases.

Abstract: A droplet ejector for a printhead comprises: a substrate having a mounting surface and an opposite nozzle surface; a nozzle-forming layer formed on at least a portion of the nozzle surface of the substrate; a fluid chamber defined at least in part by the substrate and at least in part by the nozzle-forming layer, the fluid chamber having a fluid chamber outlet defined at least in part by a nozzle portion of the said nozzle-forming layer, the said nozzle portion comprising an inner portion located closer to the fluid chamber outlet and an outer portion located closer to a periphery of the nozzle portion; and either or both of an inner actuator arrangement formed on the inner portion of the nozzle portion of the nozzle-forming layer and an outer actuator arrangement formed on the outer portion of the nozzle portion of the nozzle-forming layer.

Abstract: The present disclosure provides a path selection method and apparatus. The method comprises: receiving a traffic scheduling request, wherein the traffic scheduling request comprises a requirement for path selection, a source node, and a destination node; determining, for each dedicated line cloud comprising both a source virtual node connected with the source node and a destination virtual node connected with the destination node, a dedicated line corresponding to the dedicated line cloud as a traffic forwarding path when static attribute of a link between the source node and the respective source virtual node and a link between the destination node and the respective destination virtual node, and/or a dynamic attribute of a link between the respective source virtual node and the respective destination virtual node satisfy the requirement for path selection. The present disclosure can implement path selection based on bandwidth and quality in a point-to-multipoint network by a controller.

Abstract: A method and an apparatus for forwarding a packet in a Multi-Protocol Label Switching (MPLS) network are provided. Based on an example of the method, a Provider Edge (PE) device assigns a private network application identifier to a received Internet Protocol (IP) packet and sends a Multi-Protocol Label Switching (MPLS) packet that is generated based on the IP packet and carries the private network application identifier in an extension label. In this way, when receiving the MPLS packet, a Provider (P) device may identify the private network application to which the MPLS packet belongs based on the private network application identifier in the extension tag.

Abstract: The present disclosure relates to packet forwarding including: determining, according to a forwarding table, an outgoing interface aggregation group corresponding to an incoming interface having received a packet, wherein the forwarding table indicating a relationship between the incoming interface and the outgoing interface aggregation group; selecting, when the outgoing interface aggregation group includes at least one outgoing interface which belongs to the same NUMA node as the incoming interface, a first outgoing interface for sending the packet from the at least one outgoing interface, wherein the NUMA node being non-uniform memory access architecture node; and sending the packet through the first outgoing interface.

Abstract: The present disclosure provides an IPv6 stateless address auto-configuration method, a network device and a host. The method includes: sending a router advertisement RA message to a host, wherein the RA message includes a prefix information option, and the prefix information option includes a prefix and a flag. The host performs IPv6 stateless address auto-configuration according to the prefix and the flag.

Abstract: In an example, when a network device receives a route advertised by a Border Gateway Protocol (BGP) neighbor, the network device distributes the route to hardware thereof, records the route into a linked list of routes to be advertised, and determines a BGP state of the device. If the BGP state indicates waiting to advertise a route, the network device updates the BGP state to advertising a route after a set time length and advertises a route in the linked list of routes to be advertised. If the BGP state indicates advertising a route, the network device advertises a route in the linked list of routes to be advertised.

Abstract: A method and an apparatus for generating an Ipv6 multicast address are provided. The method includes: a client generates an IPv6 multicast address of a multicast group based on obtained location information of a target device. Further, after the client generates an IPv6 multicast address based on the location information, joins the multicast group based on the IPv6 multicast address, the client receives data from a multicast source to the multicast group.

Abstract: Provided are a method and an apparatus for forwarding a packet. Based on an example of the method, in a case of receiving an upstream Q-in-Q protocol packet through a port connected to an access device, an Edge Stream Gateway (ESGW) device forwards the upstream Q-in-Q protocol packet to a Virtual Broadband Remote Access Server (vBRAS) device through a Virtual eXtensible Local Area Network (VXLAN) tunnel between the ESGW device and the vBRAS device; in a case of receiving an upstream Q-in-Q data packet through a port connected to the access device, the ESGW device removes a Q-in-Q tag of the upstream Q-in-Q data packet, determines that a destination Media Access Control (MAC) address of the upstream Ethernet data packet without the Q-in-Q tag is an MAC address of the ESGW device, and performs layer-3 forwarding based on a destination IP address of the upstream Ethernet data packet.

Abstract: A method and a device of displaying video data are provided. The method includes receiving playing-window filling data sent from a server, determining player information, playing window information and a data channel identifier based on the playing-window filling data, displaying a player interface corresponding to the player information at a client, determining the playing window corresponding to the playing window information based on the player interface, and displaying the video data corresponding to the data channel identifier in the playing window. The technical solutions of the present disclosure ensure that the player interface synchronizes with the playing window for video data, so that the client may correctly display the video data and the user experience may be improved.