Failure protection method and apparatus, storage medium, and electronic device

A failure protection method, comprising:

• configuring a protection relationship on a standby node, wherein the protection relationship is configured to indicate an object to be protected by the standby node;
• receiving, by the standby node, Segment Identifier (SID) information advertised by a primary node, wherein the SID information at least comprises:
• an SID network programming function type and an SID value;
• matching, by the standby node, the SID network programming function type with an SID network programming function type of the standby node, matching the SID value with the protection relationship, and in a case where the SID network programming function type is successfully matched with an SID network programming function type of the standby node and the SID value is successfully matched with the protection relationship, generating a protection entry;
• and
• in a case where the primary node or a link connected to the primary node fails, forwarding, by the standby node, a received message according to the protection entry, wherein in a case where the primary node and the link connected to the primary node do not fail, other nodes send the message to the primary node, and in a case where the primary node or the link connected to the primary node fail, the other nodes directly send the message to the standby node, the other nodes being other nodes except the primary node and the standby node.