Method and apparatus for publishing an RT-5G routing message, storage medium and electronic apparatus

A method for publishing an RT-5 routing message, comprising:

• publishing, by a first device, an RT-5 routing message for a Customer Edge (CE)-Prefix to enable a limited RT-5 node to receive the RT-5 routing message, wherein
• an Ethernet Segment Identifier (ESI) field of the RT-5 routing message carries a first ESI;
• a next hop of Overlay of the CE-Prefix is a second Internet Protocol (IP), and the second IP is allowed to be reached by means of a node to which the first ESI belongs;
• the RT-5 routing message is configured to instruct the limited RT-5 node to analyze the ESI field carried in the RT-5 routing message into an RT-1 route;
• and
• sending the RT-5 routing message to a third device.

An electronic apparatus, comprising a memory and a processor, wherein the memory stores a computer program;

• and the processor is configured to execute the computer program to implement the method for publishing an RT-5G routing message, applied to a first device and comprising:
• a first publishing module, configured to publish an RT-5G routing message for a Customer Edge (CE)-Prefix to enable a limited RT-5 node to receive the RT-5G routing message, wherein a GW-IP field of the RT-5G routing message carries a first Internet Protocol (IP);
• a next hop of Overlay of the CE-Prefix is a second IP, and the second IP is allowed to be reached by means of a node to which the first IP belongs;
• the RT-5G routing message is configured to instruct the limited RT-5 node to analyze the GW-IP field carried in the RT-5G routing message into an RT-2 route;
• and
• the second IP is not in a directly-connected subnet of an Ethernet Virtual Private Network EVPN).