Pseudo wire packet transmission method and related device

A packet transmission method, executed by a second node, wherein a first pseudo wire (PW) is established between a first node and the second node, and the method comprises:

• receiving, from the first node through the first PW, a second service packet that comprises a first service packet and information about the first PW, wherein the first service packet is a packet corresponding to a non-Ethernet Layer 2 service;
• and
• performing segment routing over internet protocol version 6 (SRv6) decapsulation on the second service packet to obtain the first service packet,
• wherein the non-Ethernet service comprises any one of the following services:
• a frame relay service, a time division multiplexing (TDM) service, or an asynchronous transfer mode (ATM) service.

A packet transmission apparatus, executed by a first node, wherein a first pseudo wire (PW) is established between the first node and a second node, and the apparatus comprises:

• a receiver, configured to obtain a first service packet that is a packet corresponding to a non-Ethernet Layer 2 service;
• a processor, configured to perform segment routing over internet protocol version 6 (SRv6) encapsulation on the first service packet to obtain a second service packet, wherein the second service packet comprises the first service packet and information about the first PW;
• and
• a transmitter, configured to send the second service packet to the second node through the first PW,
• wherein the non-Ethernet service comprises any one of the following services:
• a frame relay service, a time division multiplexing (TDM) service, or an asynchronous transfer mode (ATM) service.