Patent ID: 11929922
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC G  H

Claim 15:
16. A routing information processing apparatus, comprising:
a processor and a memory, wherein the processor is coupled to the memory, wherein
the memory is configured to store a computer program; and
the processor is configured to execute the computer program stored in the memory, to enable the apparatus to:
receive routing information from a second network device, wherein the routing information comprises a first segment identifier corresponding to a third network device and a second segment identifier corresponding to a fourth network device;
obtain a first identifier and routing information corresponding to the third network device, wherein the first identifier exists only in a remote route corresponding to the third network device, and the first identifier comprises a first Ethernet segment identifier (ESI) or a first destination Internet protocol LIPS address;
obtain a second identifier and routing information corresponding to the fourth network device, wherein the second identifier exists in a local route and a remote route that correspond to the fourth network device, and the second identifier comprises a second ESI or a second destination IP address; and
advertise mirror routing information for the second network device, wherein the mirror routing information comprises the second segment identifier, but does not comprise the first segment identifier; or the mirror routing information comprises a second location identifier corresponding to the second segment identifier, but does not comprise a first location identifier corresponding to the first segment identifier.