US 11,929,922 B2
Routing information processing method and apparatus
Guoliang Liu, Nanjing (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed on Jun. 28, 2022, as Appl. No. 17/851,380.
Application 17/851,380 is a continuation of application No. PCT/CN2020/119117, filed on Sep. 29, 2020.
Claims priority of application No. 201911403426.0 (CN), filed on Dec. 31, 2019.
Prior Publication US 2022/0329517 A1, Oct. 13, 2022
Int. Cl. G06F 15/16 (2006.01); H04L 45/42 (2022.01); H04L 45/24 (2022.01); H04L 45/00 (2022.01); H04L 45/745 (2022.01)
CPC H04L 45/42 (2013.01) [H04L 45/24 (2013.01); H04L 45/566 (2013.01); H04L 45/745 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A routing information processing method, comprising:
obtaining, by a first network device, a local route corresponding to a second network device, wherein the local route comprises a first identifier, the first identifier comprises a first Ethernet segment identifier (ESI) or a first destination Internet protocol LIP address, the first ESI identifies the second network device, and the first destination IP address points to the second network device;
allocating, by the first network device based on the fact that the first identifier exists only in the local route, a first segment identifier corresponding to the second network device;
obtaining, by the first network device, a local route and a remote route that correspond to a third network device, wherein each of the local route and the remote route comprises a second identifier, the second identifier comprises a second ESI or a second destination IP address, the second ESI identifies the third network device, and the second destination IP address points to the third network device;
allocating, by the first network device based on the fact that the second identifier exists at least in the local route and the remote route, a second segment identifier corresponding to the third network device; and
sending, by the first network device, routing information, wherein the routing information comprises the first segment identifier and the second segment identifier.