Please kindly see more detail after confirmation with R&D as below ka :
In earlier IPCLK version, sequence ID will increase “1” after sending every sync packet. So if totally 61 NodeB are connecting to IPCLK, IPCLK will send sync packet periodically to 61 NodeBs and sequence ID will increase 61 per circle. However, In later version V1R3 and V2R3, this issue has been resolved. Sequence ID will increase “1” per NodeB.
This case had confirmed with R&D that service will not affected by current sequence ID. However it is still recommended to upgrade IPCLK version to V100R003ENGC00SPC300 to resolve this issue