US 11,811,512 B2
Multicast routing method, interconnection device, mesh network system and configuration method thereof
Zhou Hong, Shanghai (CN); Qin Zheng, Shanghai (CN); and Yuzhe Li, Shanghai (CN)
Assigned to Shanghai Biren Technology Co., Ltd, Shanghai (CN)
Filed by Shanghai Biren Technology Co., Ltd, Shanghai (CN)
Filed on Jul. 5, 2022, as Appl. No. 17/858,014.
Claims priority of application No. 202110811612.9 (CN), filed on Jul. 19, 2021.
Prior Publication US 2023/0027355 A1, Jan. 26, 2023
Int. Cl. H04L 45/16 (2022.01); H04L 45/12 (2022.01); H04L 45/00 (2022.01)
CPC H04L 45/16 (2013.01) [H04L 45/12 (2013.01); H04L 45/14 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A multicast routing method for a mesh network system, wherein the mesh network system comprises a plurality of processing subsystems and a plurality of memories, each processing subsystem comprises a plurality of processors and a plurality of interconnection devices connected to the processors, a first static routing policy is used for routing between the processing subsystems, and the method comprises, at each internal interconnection device among the interconnection devices of each processing subsystem:
in response to receiving a multicast access request to a destination memory among the memories, determining a shortest path from each internal interconnection device to the destination memory based on a topology structure of the mesh network system, wherein the internal interconnection device has no link connected to an external processing subsystem;
determining whether a number of the shortest path is greater than one;
in response to determining that the number of the shortest path is equal to one, routing the multicast access request to the destination memory along the shortest path; and
in response to determining that the number of the shortest path is greater than one, determining a next-hop interconnection device for the multicast access request based on a second static routing policy, wherein the second static routing policy is different from the first static routing policy.