US 12,224,930 B2
Establishment of method and apparatus for implementing entry backup
Jun Liu, Beijing (CN); and Yaokun Zhang, Beijing (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on Dec. 27, 2021, as Appl. No. 17/562,101.
Application 17/562,101 is a continuation of application No. PCT/CN2020/083018, filed on Apr. 2, 2020.
Claims priority of application No. 201910579797.8 (CN), filed on Jun. 28, 2019.
Prior Publication US 2022/0124024 A1, Apr. 21, 2022
Int. Cl. H04L 45/00 (2022.01); H04L 45/02 (2022.01); H04L 45/28 (2022.01); H04L 45/42 (2022.01)
CPC H04L 45/22 (2013.01) [H04L 45/02 (2013.01); H04L 45/28 (2013.01); H04L 45/42 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method for implementing entry backup, comprising:
generating, by a first network device, a first border gateway protocol (BGP) message, wherein the first BGP message comprises first entry information, and the first entry information comprises information about a first entry stored in the first network device; and
sending, by the first network device, the first BGP message to a second network device, wherein the first BGP message advertises an entry backup route to the second network device to enable the second network device to obtain a second entry based on the first BGP message, wherein information about the second entry comprises the first entry information, and the second entry is a backup entry of the first entry,
wherein the first BGP message comprises a route type field, and the route type field indicates that a type of a route advertised by the first BGP message is the entry backup route.