Packet processing method and apparatus

A packet processing apparatus, comprising:

• a receiver, configured to receive a first rule from a service function chain controller, wherein the first rule comprises a match field, and the match field is a network service header (NSH), wherein
• the receiver is further configured to receive a first service flow packet;
• a processor, configured to match a packet header feature of the first service flow packet with the match field of the first rule;
• and if the packet header feature of the first service flow packet successfully matches the match field of the first rule, create a second rule and a third rule according to the first rule, wherein priorities of the second rule and the third rule are higher than a priority of the first rule.

A computer-readable storage medium, comprising an instruction, wherein when the instruction is run on a computer, the computer is enabled to perform the method comprising:

• receiving, by a forwarding device, a first rule from a service function chain controller, wherein the first rule comprises a match field, and the match field is a network service header (NSH);
• receiving, by the forwarding device, a first service flow packet, and matching a packet header feature of the first service flow packet with the match field of the first rule;
• and
• if the packet header feature of the first service flow packet successfully matches the match field of the first rule, creating, by the forwarding device, a second rule and a third rule according to the first rule, wherein priorities of the second rule and the third rule are higher than a priority of the first rule.