US 12,483,465 B2
Bit index explicit replication egress protection
Huaimo Chen, Bolton, MA (US)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Apr. 27, 2023, as Appl. No. 18/308,273.
Application 18/308,273 is a continuation of application No. PCT/US2021/054196, filed on Oct. 8, 2021.
Claims priority of provisional application 63/106,201, filed on Oct. 27, 2020.
Prior Publication US 2023/0269129 A1, Aug. 24, 2023
Int. Cl. H04L 41/0654 (2022.01); H04L 45/00 (2022.01)
CPC H04L 41/0654 (2013.01) [H04L 45/22 (2013.01)] 27 Claims
OG exemplary drawing
 
1. A method implemented by a network node neighboring a primary egress node in a Bit Index Explicit Replication (BIER) domain, comprising:
receiving a type length value (TLV) structure that identifies a backup egress node for the primary egress node and includes an entry that indicates whether the primary egress node and the backup egress node transmit a packet to a same customer edge (CE) receiver or to different CE receivers;
generating an egress protection bit index forwarding table (EP-BIFT) including the backup egress node and the entry that indicates whether the primary egress node and the backup egress node transmit the packet to the same CE receiver or to different CE receivers; and
forwarding the packet in accordance with the EP-BIFT when the primary egress node has failed.