US 11,791,921 B2
Network management system and method for synchronization of communication network
Donghee Kwon, Seongnam-si (KR); and Hoopyo Hong, Seongnam-si (KR)
Assigned to SOLiD, INC., Seongnam-si (KR)
Filed by SOLiD, INC., Seongnam-si (KR)
Filed on Dec. 14, 2020, as Appl. No. 17/120,843.
Claims priority of application No. 10-2019-0169975 (KR), filed on Dec. 18, 2019.
Prior Publication US 2021/0194613 A1, Jun. 24, 2021
Int. Cl. H04J 3/06 (2006.01)
CPC H04J 3/0673 (2013.01) [H04J 3/0641 (2013.01); H04J 3/0667 (2013.01); H04J 3/0697 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A synchronization method of a communication network, the synchronization method comprising: monitoring a connection state of second communication nodes that are synchronized using a synchronization signal provided through a first communication node to which a synchronization source is connected, wherein the second communication nodes set an internet protocol (IP) address of the first communication node as a master IP address; determining whether the number of the synchronized second communication nodes exceeds a preset reference value according to a result of the monitoring; and switching a synchronization mode of at least one second communication node among the synchronized second communication nodes when the number of the second communication nodes exceeds a-the preset reference value, wherein, when the synchronization mode of the at least one second communication node is switched, the at least one second communication node and a child node of the at least one second communication node change the master IP address from the IP address of the first communication node to an IP address of the at least one second communication node.