Method for processing data in ethernet, device, and system

A network device, applied to Ethernet, wherein the Ethernet comprises a target network device, the network device is coupled with the target network device by using the Ethernet, the network device comprising:

• a non-transitory memory comprising instructions;
• a processor in communication with the memory, wherein the processor is configured to execute the instructions to:
• receive plesiochronous digital hierarchy (PDH) frame data;
• perform virtual-container mapping processing on the PDH frame data to load the PDH frame data and a stuffing bit into a virtual container, to obtain the virtual container that comprises the PDH frame data and the stuffing bit;
• perform virtual-container pseudo-wire emulation edge-to-edge (PWE3) encapsulation on the virtual container to obtain virtual-container PWE3 encapsulated data;
• and
• obtain the virtual-container PWE3 packet according to the virtual-container PWE3 encapsulated data, and send the virtual-container PWE3 packet comprising the stuffing bit to the target network device by using the Ethernet, wherein the stuffing bit is configured to indicate a clock frequency difference between a clock frequency of the Ethernet and a clock frequency of the PDH frame data for the target device to determine the clock frequency of the PDH frame data based on the stuffing bit and a clock frequency of target device that is the clock frequency of the Ethernet, wherein a clock frequency obtained by adding the stuffing bit to the clock frequency of the PDH frame data is equal to one of the clock frequency of the Ethernet, a rate obtained after the clock frequency of the Ethernet is divided, or a rate obtained after the clock frequency of the Ethernet is multiplied.

A network device, applied to Ethernet, wherein the Ethernet further comprises a target network device, the network device is coupled with the target network device by using the Ethernet, the network device comprising:

• a non-transitory memory comprising instructions;
• a processor in communication with the memory, wherein the processor is configured to execute the instructions to:
• receive a virtual-container pseudo-wire emulation edge-to-edge (PWE3) packet sent by the target network device, wherein the virtual-container PWE3 packet comprises plesiochronous digital hierarchy (PDH) frame data and a stuffing bit, wherein the stuffing bit carries information about a clock frequency difference between a clock frequency of the Ethernet and a clock frequency of the PDH frame data;
• perform virtual-container PWE3 decapsulation on the virtual-container PWE3 packet to obtain a virtual container;
• perform virtual-container demapping processing on the virtual container to obtain the PDH frame data and the stuffing bit that are stored in the virtual container;
• and
• determine the clock frequency of the PDH frame data based on the stuffing bit and a clock frequency of the network device that is the clock frequency of the Ethernet, wherein a clock frequency obtained by adding the stuffing bit to the clock frequency of the PDH frame data is equal to one of the clock frequency of the Ethernet, a rate obtained after the clock frequency of the Ethernet is divided, or a rate obtained after the clock frequency of the Ethernet is multiplied.