Routing method, routing apparatus, nfcc, and dh

A near field communication controller (NFCC), comprising:

• a communications interface, a memory, a processor, and a communications bus, wherein the communications interface, the memory, and the processor perform communication by using the communications bus;
• the memory is configured to store a first routing table and a second routing table;
• and
• the processor is configured to:
• obtain route types supported by a received data frame;
• sequentially match, according to a sequence of the route types supported by the data frame, for each route type, the first routing table and the second routing table of the route type, until a matching routing entry of the data frame is obtained, wherein the first routing table comprises L routing entries whose priorities need to be boosted, and the L routing entries whose priorities need to be boosted are corresponding to L route types, respectively, wherein L is an integer greater than or equal to 1;
• and select a route according to the matching routing entry of the data frame.

A device host (DH), comprising:

• a communications interface, a memory, a processor, and a communications bus, wherein the communications interface, the memory, and the processor perform communication by using the communications bus;
• the memory is configured to store a first routing table;
• the processor is configured to generate the first routing table according to routing entries whose priorities need to be boosted and that are corresponding to L route types, respectively, wherein the first routing table comprises L routing entries whose priorities need to be boosted, and the L routing entries whose priorities need to be boosted are corresponding to the L route types, respectively, wherein L is an integer greater than or equal to 1;
• and
• the communications interface is configured to send a first route configuration instruction to a near field communication controller NFCC, wherein the first route configuration instruction comprises a preferred route identifier and the first routing table, and the preferred route identifier is used to indicate a routing entry whose priority needs to be boosted in the first routing table, so that the NFCC performs routing processing on a received data frame according to the first routing table.