System and method for virtual server migration across...

Details System and method for virtual server migration across... System and method for virtual server migration across...

2011-06-21

2011-06-21

Winder, Patrice L (Department: 2452)

Electrical computers and digital processing systems: multicomput

Distributed data processing

C709S220000, C709S227000

Reexamination Certificate

active

07966364

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.

REFERENCES:
patent: 7080051 (2006-07-01), Crawford
patent: 2001/0047421 (2001-11-01), Sridhar et al.
patent: 2002/0078218 (2002-06-01), Feig
patent: 2004/0153709 (2004-08-01), Burton-Krahn
patent: 2007/0028239 (2007-02-01), Dyck et al.
patent: 2008/0115129 (2008-05-01), Hintermeister et al.
patent: 2008/0162724 (2008-07-01), Hietasarka
patent: 2009/0083376 (2009-03-01), Dowlmg et al.
Su, Gong et al. “Mobile Communication with Virtual Network Address Translation,” Technical Report CUCS-003-02, Dept. of Computer Science, Columbia University, Feb. 2002.

Affiliated with

Also associated with

Rating

System and method for virtual server migration across... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System and method for virtual server migration across..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for virtual server migration across... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2729360