BFD session sharing method, device and system, electronic equipment and medium

The invention provides a BFD session sharing method, device and system, electronic equipment and a medium, and relates to the technical field of data services. The BFD session sharing method comprises the following steps: according to at least one of first information, an incidence relation between a first port and a second port of a virtual machine, and a corresponding relation between the port and a BFD session identifier, determining whether the first port shares a BFD session corresponding to the second port when creating a static route; wherein the first information is used for representing whether a BFD session is shared between networks under the same main network; the first port and the second port are main ports for the virtual machine to access a main network or sub-ports for sub-networks under the same main network. According to the scheme provided by the invention, the virtual machine is allowed to share the BFD session among the ports under the same main network, so that the number of the BFD ses