US 11,777,847 B1
Point-to-multipoint transport chain
Yimin Shen, Sherborn, MA (US); Zhaohui Zhang, Westford, MA (US); Alexander Arseniev, Ras al Khaimah (AE); and Ronald Bonica, Sterling, VA (US)
Assigned to Juniper Networks, Inc., Sunnyvale, CA (US)
Filed by Juniper Networks, Inc., Sunnyvale, CA (US)
Filed on Nov. 20, 2020, as Appl. No. 17/100,602.
Claims priority of provisional application 62/975,374, filed on Feb. 12, 2020.
Int. Cl. H04L 45/00 (2022.01); H04L 45/16 (2022.01); H04L 69/22 (2022.01); H04L 45/50 (2022.01); H04L 101/659 (2022.01)
CPC H04L 45/566 (2013.01) [H04L 45/16 (2013.01); H04L 45/50 (2013.01); H04L 69/22 (2013.01); H04L 2101/659 (2022.05)] 20 Claims
OG exemplary drawing
 
1. A method, comprising:
receiving, by a network node, a packet that originated from a root network node;
processing, by the network node, the packet to determine segment identifier (SID) information associated with a point-to-multipoint transport chain,
wherein the network node is configured to handle different types of segment routing packets;
determining, by the network node and based on the SID information, that the network node is a transit leaf node in the point-to-multipoint transport chain;
generating, by the network node and based on determining that the network node is a transit leaf node in the point-to-multipoint transport chain, a copy of the packet,
wherein the network node processes the copy of the packet and forwards the packet to another network node;
processing, by the network node, the copy of the packet to perform one or more actions,
wherein the one or more actions include causing one or more settings of the network node to be adjusted;
updating, by the network node and based on determining that the network node is a transit leaf node in the point-to-multipoint transport chain, the SID information; and
sending, by the network node and after updating the SID information, the packet, with the updated SID information, to the other network node.