US 12,192,092 B2
BIER packet forwarding method, device, apparatus, and storage medium
Shaofu Peng, Shenzhen (CN)
Assigned to ZTE CORPORATION, Shenzhen (CN)
Appl. No. 17/787,897
Filed by ZTE CORPORATION, Shenzhen (CN)
PCT Filed Dec. 7, 2020, PCT No. PCT/CN2020/134242
§ 371(c)(1), (2) Date Jun. 21, 2022,
PCT Pub. No. WO2021/121065, PCT Pub. Date Jun. 24, 2021.
Claims priority of application No. 201911329040.X (CN), filed on Dec. 20, 2019.
Prior Publication US 2023/0040579 A1, Feb. 9, 2023
Int. Cl. H04L 45/02 (2022.01); H04L 45/50 (2022.01); H04L 69/22 (2022.01)
CPC H04L 45/02 (2013.01) [H04L 45/50 (2013.01); H04L 69/22 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A Bit Indexed Explicit Replication (BIER) packet forwarding method, applied to a packet sending node, comprising:
setting node information of a BIER forwarding neighboring node in a Bit Index Forwarding Table (BIFT) forwarding entry;
in a case of determining according to the node information that the BIER forwarding neighboring node has a capability of processing a target packet format, encapsulating a BIER packet according to the target packet format; and
sending an encapsulated BIER packet to the BIER forwarding neighboring node;
wherein in the case of determining according to the node information that the BIER forwarding neighboring node has the capability of processing the target packet format, encapsulating the BIER packet according to the target packet format comprises:
in a case where the node information comprises a packet format identifier corresponding to a non-Multiprotocol Label Switching (MPLS) BIER packet, determining that the BIER forwarding neighboring node has the capability of processing the target packet format; and
acquiring a BIER non-MPLS Generic Label (BNMGL) in the node information, and encapsulating the BNMGL and a BIER packet payload in a non-MPLS BIER packet format as an MPLS packet.