The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 29, 2013
Filed:
Apr. 06, 2010
Siva Prasad Donthamsetty, Bangalore, IN;
Kulkarni Hrishikesh Vishwas, Bangalore, IN;
Lilian Sylvia Fernandes, Bangalore, IN;
Michael R. Smith, San Jose, CA (US);
Srinath Mohanraj, Bangalore, IN;
Siva Prasad Donthamsetty, Bangalore, IN;
Kulkarni Hrishikesh Vishwas, Bangalore, IN;
Lilian Sylvia Fernandes, Bangalore, IN;
Michael R. Smith, San Jose, CA (US);
Srinath Mohanraj, Bangalore, IN;
Cisco Technology, Inc., San Jose, CA (US);
Abstract
In providing seamless migration of virtual or physical devices among networks of a virtual local area network (VLAN) such as one spanning multiple data centers, a same virtual anycast Medium Access Control (VMAC) is used for reaching default gateways in virtual and/or physical devices. Each network is typically configured such that source MAC learning for the VMAC should happen only for packets coming from the local default gateway. In this manner, when a device is migrated between networks of the VLAN, the same IP address and corresponding MAC address (typically still residing in the MAC cache of the migrated device) can be used to reach the local default gateway.