Patent ID: 7966364
Filing Date: 2011-06-21
Classification: H04L

Abstract:
1. A method of moving operation of a first virtual server from a first network location having a first network address to a second network location having a second network address different from the first network address, the method comprising: copying first operating data representing a first state of operation of the first virtual server at a first time; establishing a second virtual server in the first state of operation at the second network location using the copied first operating data of the first virtual server; subsequent to establishing the second virtual server in the first state of operation, pausing operation of the first virtual server and copying additional operating data representing a second state of operation of the first virtual server; while the first virtual server is paused, establishing the second virtual server in the second state of operation using the copied additional operating data of the first virtual server; diverting data addressed to the first virtual server at the first network address to the second virtual server at the second network address starting at a predetermined time after establishing the second virtual server in the second state of operation; and the second virtual server processing the diverted data and sending a response back to an origin of the diverted data, wherein the response from the second virtual server appears, to the origin of the diverted data, to have come from the first virtual server located at the first network address.