公开(公告)号：US20240348537A1

公开(公告)日：2024-10-17

申请号：US18692120

申请日：2021-09-15

申请人： Telefonaktiebolaget LM Ericsson (publ)

发明人： Wei XU ,  Shuxia TAI ,  Huajie GUO ,  Lei ZHOU

IPC分类号： H04L45/28 ,  H04L45/023 ,  H04L45/03

CPC分类号： H04L45/28 ,  H04L45/023 ,  H04L45/03

摘要： Embodiments of the present disclosure provide method and apparatus for Designated Router (DR) seamless switchover. A method performed by a network device comprises detecting a DR failure event due to a failure DR. The method further comprises detecting that the second edge device is unreachable. The method further comprises holding refresh of router-Link State Advertisements (router-LSA) in a link-state database and flooding procedure, when a Backup Designated Router (BDR) has not declared to be a working DR in an Open Shortest Path First (OSPF) network.