Patent · US Active

Multiple network architecture providing for migration of devices

US8363666B2 · kind B2 · utility

13Cited by

9References

21Claims

0Family size

Assignee

Cisco Technology, Inc. · US

Inventors

Siva Prasad Donthamsetty · Bengaluru, IN
Kulkarni Hrishikesh Vishwas · Bengaluru, IN
Lilian Fernandes · Austin, US
Michael R. Smith · San Jose, US
Srinath Mohanraj · Bengaluru, IN

Key dates

Filing date	Apr 6, 2010
Grant date	Jan 29, 2013
Priority date	—
Expiry date	Jun 14, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH04L61/103
WIPO fieldDigital communication
WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.