I see lots of this:
Jan 07 13:19:20 cloudnet1003 neutron-l3-agent[39330]: 2021-01-07 13:19:20.122 39330 WARNING oslo.service.loopingcall [-] Function 'neutron.agent.l3.agent.L3NATAgentWithStateReport._report_state' run outlasted interval by 8.62 sec Jan 07 13:19:35 cloudnet1003 neutron-l3-agent[39330]: 2021-01-07 13:19:35.765 39330 WARNING oslo.service.loopingcall [-] Function 'neutron.agent.l3.agent.L3NATAgentWithStateReport._report_state' run outlasted interval by 10.64 sec
Possible related ticket: T205524: cloudvps: neutron: agents failed to communicate with server