Method, device and equipment for supporting high-precision clock service

The invention provides a method, a device and equipment for supporting high-precision clock service. The intelligent network card supporting the high-precision clock synchronization protocol is installed on the virtualization device, and the high-precision clock synchronization function of the intelligent network card is started to achieve clock synchronization of the intelligent network card and the high-precision clock source. Issuing a hardware flow table for a service needing a high-precision clock to the intelligent network card, and adding a sending timestamp for a service message based on the high-precision clock on the intelligent network card in the service message when the intelligent network card forwards the service message of the specified service outwards through the hardware flow table; and adding a receiving timestamp to the service message based on a high-precision clock on the intelligent network card when the service message of the specified service is forwarded inwards in the intelligent n