A computer system comprises: a forwarding node(s) that processes a packet received from any other apparatus based on a packet handling operation; a communication control server that controls the packet handling operation stored in the forwarding node(s); and a physical server(s) on which a virtual server operates, wherein the communication control server stores a topology of a communication network including the forwarding node(s) and the physical server(s) and an operating status of a virtual server(s) connected to the communication network, requests resuming an operation of a virtual server(s) in a suspended state upon occurrence of a communication request to the suspended virtual server(s), and sets a communication path for forwarding a packet for the communication request in the forwarding node(s), based on a location at which the suspended virtual server(s) is connected to the communication network after resumption of the operation.