Route processing method and network device

A network device comprising:

• one or more ports configured to receive one or more routes comprising a first destination address, wherein the first destination address is the same for the one or more routes;
• a memory configured to store instructions;
• and
• one or more processors coupled to the one or more ports and the memory and configured to execute the instructions to:
• determine, based on the one or more ports, first slice information corresponding to the one or more ports;
• update a first route of the one or more routes to obtain an updated first route, wherein the updated first route carries the first slice information and the first destination address;
• and
• send the updated first route to a second network device.

A computer program product stored on a non-transitory computer storage medium that when executed by one or more processors of a network device, cause the network device to:

• receive, by one or more ports of the network device, one or more routes comprising a destination address, wherein the destination address is the same for the one or more routes;
• determine, based on the one or more ports, first slice information corresponding to the one or more ports;
• update a first route of the one or more routes to obtain an updated first route, wherein the updated first route carries the first slice information and the destination address;
• and
• send the updated first route to a second network device.