US 11,888,726 B2
Path establishment method and controller
Fengmei Wang, Beijing (CN); Yong Long, Shenzhen (CN); and Xia Chen, Beijing (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed on Oct. 28, 2022, as Appl. No. 17/976,600.
Application 17/976,600 is a continuation of application No. 16/937,236, filed on Jul. 23, 2020, granted, now 11,502,937, issued on Nov. 15, 2022.
Application 16/937,236 is a continuation of application No. 16/185,994, filed on Nov. 9, 2018, granted, now 10,749,788, issued on Aug. 18, 2020.
Application 16/185,994 is a continuation of application No. PCT/CN2016/108233, filed on Dec. 1, 2016.
Claims priority of application No. 201610307327.2 (CN), filed on May 10, 2016.
Prior Publication US 2023/0269173 A1, Aug. 24, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 45/16 (2022.01); H04L 45/121 (2022.01); H04L 12/18 (2006.01); H04L 47/125 (2022.01); H04L 45/125 (2022.01); H04L 45/64 (2022.01); H04L 45/50 (2022.01)
CPC H04L 45/16 (2013.01) [H04L 12/18 (2013.01); H04L 12/1854 (2013.01); H04L 45/121 (2013.01); H04L 45/125 (2013.01); H04L 45/64 (2013.01); H04L 47/125 (2013.01); H04L 45/50 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A communication method implemented by a target branch node along a point to multipoint traffic engineering (P2MP TE) path, the method comprising:
receiving, from a controller, first information comprising a label of the target branch node;
generating a multicast forwarding entry based on the first information, the multicast forwarding entry comprises second information about a first path from the target branch node to at least two tail nodes; and
forwarding, by using the multicast forwarding entry, a packet comprising the label.