US 12,149,444 B2
Routing rule management method and communications apparatus
Qianghua Zhu, Beijing (CN); and Wenfu Wu, Shanghai (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Nov. 8, 2021, as Appl. No. 17/521,096.
Application 17/521,096 is a continuation of application No. PCT/CN2020/088479, filed on Apr. 30, 2020.
Claims priority of application No. 201910372398.4 (CN), filed on May 6, 2019.
Prior Publication US 2022/0060416 A1, Feb. 24, 2022
Int. Cl. H04L 45/00 (2022.01); H04L 45/74 (2022.01); H04L 61/50 (2022.01); H04L 61/5069 (2022.01); G06N 20/00 (2019.01); H04L 101/622 (2022.01)
CPC H04L 45/72 (2013.01) [H04L 45/74 (2013.01); H04L 61/50 (2022.05); H04L 61/5069 (2022.05); G06N 20/00 (2019.01); H04L 2101/622 (2022.05)] 20 Claims
OG exemplary drawing
 
1. A routing rule management method, comprising:
receiving, by a first user plane function network element through a protocol data unit (PDU) session, a first data packet from a terminal, wherein a first source address of the first data packet is a first address;
generating, by the first user plane function network element when the first address is an unknown media access control (MAC) address, a first routing rule corresponding to the PDU session, wherein the first routing rule is configured to forward, to the PDU session, a data packet sent to the first address;
generating, by the first user plane function network element, a second data packet, wherein a second source address of the second data packet is the first address, and wherein a destination address of the second data packet is a broadcast address or a multicast address; and
forwarding, by the first user plane function network element, the second data packet and MAC address self-learning indication information to an internal interface of the first user plane function network element.