Abstract: A user group-based packet forwarding method and a device are provided. The method includes: a first network device receives a first service packet sent by first user equipment, where the first service packet includes information about the first user equipment; the first network device determines whether the first network device includes a first user group corresponding to the information about the first user equipment; and the first network device determines, based on a determining result, a value of first group information, generates a first segment routing over internet protocol version 6 (SRv6) packet, and sends the first SRv6 packet to a second network device, where the first SRv6 packet includes the first group information and the first service packet, and the first group information indicates an interworking policy that is determined based on the first user group.

Abstract: In a route processing method, a first network device obtains one or more routes having a same destination address, and including a first route. Slice information corresponding to the one or more ports is determined based on one or more ports that are on the first network device and that receive the one or more routes. The first network device sends an updated first route to a second network device, where the updated first route carries the slice information and the destination address. After a route is received, corresponding slice information is determined based on a port that receives the route, so that slice information supported by a path from a network device to a route starting device is determined. The determined slice information is carried when the route is forwarded, so that a network device on a route advertisement path can obtain the slice information supported by the entire path.

Abstract: A user group-based packet forwarding method and a device are provided. The method includes: a first network device receives a first service packet sent by first user equipment, where the first service packet includes information about the first user equipment; the first network device determines whether the first network device includes a first user group corresponding to the information about the first user equipment; and the first network device determines, based on a determining result, a value of first group information, generates a first segment routing over internet protocol version 6 (SRv6) packet, and sends the first SRv6 packet to a second network device, where the first SRv6 packet includes the first group information and the first service packet, and the first group information indicates an interworking policy that is determined based on the first user group.

Abstract: This application discloses a network and a data transmission method and apparatus, and belongs to the field of communication technologies. The network includes a core device and an edge device. The edge device identifies a service type of a first service packet from the core device, and reports a service type identifier of the first packet to the core device. The core device determines a priority corresponding to the service type identifier based on a stored service priority correspondence, and forwards, based on the priority, a service packet belonging to a same service flow as the first service packet. A strong service identification capability of the edge device is used to precisely identify thousands of service types, and a strong entry storage capability of the core device is used to store a correspondence that records thousands of service types and priorities.

Abstract: A first network device obtains first information. The first information indicates that a first link is faulty, and the first link is a link between any two network devices in a network system to which the first network device belongs. The first network device sends the first information to a second network device by using BGP, for example, sends a link fault message to the second network device by using BGP. The link fault message carries the first information. The second network device is a neighbor device of the first network device. The first network device determines an unreachable route in a routing table of the first network device based on the first information and a topology of the network system. A path corresponding to the unreachable route includes the first link. The first network device marks the unreachable route as invalid.

Abstract: The present invention discloses a bevel swing head interpolation tool changing mechanism, which includes a bed, a sliding table, a column, a ram, a swing head and a tool magazine, in which the swing head moves along the X-axis, Y-axis and Z-axis of the machine tool, the axis of the swing head and a B-axis form an included angle between 30°-60°, the tool magazine is equipped with a tool, and the swing head moves along its own axis direction and change the tool. The invention provides a bevel swing head interpolation tool changing mechanism and a method thereof, capable of quick and convenient tool changing through the mutual cooperation of the movement of the linear axes of the machine tool, without complex equipment such as manipulators used, and which is simple in structure, good in stability and easy to maintain.

Abstract: A workpiece exchange device, including: a workpiece spindle; and a workpiece library, wherein: the workpiece spindle is arranged on a pallet, the pallet is arranged on a slide table, the pallet can move along a Z axis of a machine tool, and the slide table can move along an X axis of the machine tool; and the workpiece library is used to store workpieces, and the workpiece spindle can move along the X-axis and Z-axis of the machine tool and grab a workpiece. The present invention also discloses a method for exchanging workpieces. Through the coordinated movement of the slide table and the pallet, the workpiece spindle can take out a workpiece to be machined from the workpiece library or return a machined workpiece into the workpiece library. The present invention uses a machine tool coordinate system to grab the workpiece with high precision and high speed, and does not need to add an auxiliary mechanism, and has the advantages of simple structure, high stability and good reliability.

Abstract: The present invention discloses a planogrinder including a measuring device, wherein the measuring device can move along the X-axis direction, an optical probe is provided at one end of the measuring device close to a bed base, and the optical probe is used for real-time detection of an outer diameter of a workpiece being machined. The planogrinder provided by the present invention can measure dimensions of the workpiece during rotation through the measuring device, and can control the deformation of the workpiece during the rotation process, thereby making the machining accuracy of the workpiece controllable during use.

Abstract: A method for controlling traffic forwarding includes: A control device receives a first packet sent by a first network device, where the first packet includes a first service packet. A destination of the first packet is the control device, a destination of the first service packet is first user equipment, and the first user equipment is connected to a network by using a second network device. Then, the control device determines a first forwarding policy based on the first packet and a first routing entry, where the first forwarding policy is used to guide forwarding of a first data flow to which the first service packet belongs. In addition, the control device sends the first forwarding policy to the first network device.

Abstract: A fully symmetric cutter grinding machine with 5-axis includes a grinding machine base and a pillar, sliding rails are vertically arranged on an inside of the pillar, the sliding rails are provided with a grinding wheel head bracket, the grinding wheel head bracket comprises torque motors vertically provided, a lower part of the torque motor is connected to a horizontally provided spindle by means of a bearing of a rotation table, grinding wheels rotating around an axis of the spindle are symmetrically provided at two sides of the spindle, the grinding wheel head bracket further comprises a big rotatable pulley provided at an upper part of the grinding wheel head bracket and driven to rotate by spindle motors, the big pulley is connected to a spindle pulley by a wide synchronous belt.

Abstract: A grinding machine with 5-axis for cutters is disclosed, the grinding machine includes a grinding machine base (12) with an circular upper horizontal surface and a pillar (56) provided on one side of the grinding machine base, the pillar is curved with a radian of 180° along a side edge of the base, a groove body (63) on the circular base is enclosed by a curved vertical plate on the another side edge, and the height of vertical plate is lower than that of the pillar.

Abstract: A fully symmetric cutter grinding machine with 5-axis includes a grinding machine base and a pillar, sliding rails are vertically arranged on an inside of the pillar, the sliding rails are provided with a grinding wheel head bracket, the grinding wheel head bracket comprises torque motors vertically provided, a lower part of the torque motor is connected to a horizontally provided spindle by means of a bearing of a rotation table, grinding wheels rotating around an axis of the spindle are symmetrically provided at two sides of the spindle, the grinding wheel head bracket further comprises a big rotatable pulley provided at an upper part of the grinding wheel head bracket and driven to rotate by spindle motors, the big pulley is connected to a spindle pulley by a wide synchronous belt.

Abstract: A grinding machine with 5-axis for cutters is disclosed, the grinding machine includes a grinding machine base (12) with an circular upper horizontal surface and a pillar (56) provided on one side of the grinding machine base, the pillar is curved with a radian of 180° along a side edge of the base, a groove body (63) on the circular base is enclosed by a curved vertical plate on the another side edge, and the height of vertical plate is lower than that of the pillar.