Invention Grant
US07966364B2 System and method for virtual server migration across networks using DNS and route triangulation
有权
使用DNS和路由三角测量的虚拟服务器跨网络迁移的系统和方法
- Patent Title: System and method for virtual server migration across networks using DNS and route triangulation
- Patent Title (中): 使用DNS和路由三角测量的虚拟服务器跨网络迁移的系统和方法
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Application No.: US12180813Application Date: 2008-07-28
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Publication No.: US07966364B2Publication Date: 2011-06-21
- Inventor: Ravi Sundaram , Nathan Faber
- Applicant: Ravi Sundaram , Nathan Faber
- Applicant Address: US MA Boston
- Assignee: Northeastern University
- Current Assignee: Northeastern University
- Current Assignee Address: US MA Boston
- Agency: Weingarten, Schurgin, Gagnebin & Lebovici LLP
- Main IPC: G06F15/16
- IPC: G06F15/16 ; G06F15/177

Abstract:
A first virtual server is moved from a first network location to a second network location without interrupting service to users of the first virtual server. The state and data of the first virtual server are copied and transmitted to the second network location to create a copy of the first virtual server. The first virtual server copy is then updated to duplicate the first virtual server and all connections or packets directed to the first virtual server are intercepted and directed to the first virtual server copy at the second network location. A DNS entry for the symbolic name of the first virtual server is updated to reflect a shortened TTL value and then the address field of the DNS entry is set to the address of the first virtual server copy after the changeover and subsequent connections are directed to the first virtual server copy.
Public/Granted literature
- US20090198817A1 SYSTEM AND METHOD FOR VIRTUAL SERVER MIGRATION ACROSS NETWORKS USING DNS AND ROUTE TRIANGULATION Public/Granted day:2009-08-06
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