公开(公告)号：EP2497229A2

公开(公告)日：2012-09-12

申请号：EP10828933.1

申请日：2010-10-28

Applicant: Microsoft Corporation

Inventor： ALKHATIB, Hasan ,  BANSAL, Deepak

IPC: H04L12/28

CPC classification number: H04L29/12349 ,  H04L45/64 ,  H04L61/2507 ,  H04L63/0272

Abstract: Computerized methods, systems, and computer-storage media for establishing and managing a virtual network overlay ("overlay") are provided. The overlay spans between a data center and a private enterprise network and includes endpoints, of a service application, that reside in each location. The service-application endpoints residing in the data center and in the enterprise private network are reachable by data packets at physical IP addresses. Virtual presences of the service-application endpoints are instantiated within the overlay by assigning the service-application endpoints respective virtual IP addresses and maintaining an association between the virtual IP addresses and the physical IP addresses. This association facilitates routing the data packets between the service-application endpoints, based on communications exchanged between their virtual presences within the overlay. Also, the association secures a connection between the service-application endpoints within the overlay that blocks communications from other endpoints without a virtual presence in the overlay.