Abstract: Example data transmission methods and apparatus are disclosed. One example method includes receiving a first data packet. When a first ring node detects that a link between the first ring node and a second ring node on a first ring port is faulty, it is determined whether the received first data packet is a wrapped data packet. If the first data packet is a non-wrapped data packet, a second ring port is determined based on the first ring port, the first data packet is wrapped into a wrapped data packet to generate a second data packet, and the second data packet is forwarded through the second ring port.

Abstract: In a data transmission method, each ring network interface is associated with a ring identifier, and a ring-incoming packet carries a ring identifier of a ring network interface through which the packet is first forwarded. When a node in a ring network detects a link fault in a process of transmitting a packet, the node determines, with reference to a ring identifier and a wrapping identifier carried in the packet, to perform wrapping or discard the packet. According to the method, two sub-ring networks of a dual-ring coupled ring network can be allowed to separately implement one time of wrapping.

Abstract: A frame processing method and apparatus are provided, to implement selective receiving in a redundant transmission scenario. According to a method, a destination device receives a first Ethernet frame from a first intermediate node through a first interface, where the first Ethernet frame includes a first time point, and the first time point is a processing time point of the first Ethernet frame on the first intermediate node. The destination device receives a second Ethernet frame from a second intermediate node through a second interface, where the second Ethernet frame includes a second time point, and the second time point is a processing time point of the second Ethernet frame on the second intermediate node. The destination device determines, based on the first time point and the second time point, whether the second Ethernet frame is a duplicate frame of the first Ethernet frame.

Abstract: A troubleshooting method, a device, and a readable storage medium are provided, to detect a unidirectional fault in a ring Ethernet and provide a fault recovery mechanism after the unidirectional fault occurs. In embodiments of this application, if determining that a link corresponding to a receiving unit of a first port is in a fault status, the first device performs loopback on the first port, and sends a first continuity check message to a second device via the first port. The first continuity check message carries first indication information. The first indication information indicates that a link corresponding to a receiving unit of a port that sends the first indication information is in a fault status.

Abstract: Packing system and method for shipping pallet truck vehicles wherein each vehicle has a front frame configured to be assembled to a rear frame. The packing system includes a first holder that holds a plurality of vehicle rear frames lying on their sides, a second holder that holds a plurality of vehicle front frames having forks with at least a first front frame upright and having the forks facing in a first direction, and holds at least a second front frame inverted and having the forks facing in an opposed second direction, and wherein the first holder holding the plurality of rear frames is disposed within the second holder vertically between the forks of the upright at least one first front frame and the forks of the inverted at least one second front frame.

Abstract: A troubleshooting method, a device, and a readable storage medium are provided, to detect a unidirectional fault in a ring Ethernet and provide a fault recovery mechanism after the unidirectional fault occurs. In embodiments of this application, if determining that a link corresponding to a receiving unit of a first port is in a fault status, the first device performs loopback on the first port, and sends a first continuity check message to a second device via the first port. The first continuity check message carries first indication information. The first indication information indicates that a link corresponding to a receiving unit of a port that sends the first indication information is in a fault status.

Abstract: Embodiments of this disclosure provide a data transmission method, a device, and a system. The method includes: The first Ethernet interface of the first communications device receives a first packet, and determines whether first indication information in the first packet indicates that the first packet is a multi-fed packet. When the first indication information indicates that the first packet is a multi-fed packet, the first communications device drops the first packet. The first Ethernet interface is an Ethernet interface used by the first communications device for connecting to a second communications device.

Abstract: A frame processing method and apparatus are provided, to implement selective receiving in a redundant transmission scenario. The method includes: A destination device receives a first Ethernet frame from a first intermediate node through a first interface, where the first Ethernet frame includes a first time point, and the first time point is a processing time point of the first Ethernet frame on the first intermediate node. The destination device receives a second Ethernet frame from a second intermediate node through a second interface, where the second Ethernet frame includes a second time point, and the second time point is a processing time point of the second Ethernet frame on the second intermediate node. The destination device determines, based on the first time point and the second time point, whether the second Ethernet frame is a duplicate frame of the first Ethernet frame.

Abstract: Example data transmission methods and apparatus are disclosed. One example method includes receiving a first data packet. When a first ring node detects that a link between the first ring node and a second ring node on a first ring port is faulty, it is determined whether the received first data packet is a wrapped data packet. If the first data packet is a non-wrapped data packet, a second ring port is determined based on the first ring port, the first data packet is wrapped into a wrapped data packet to generate a second data packet, and the second data packet is forwarded through the second ring port.