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. 01, 2019
Filed:
Jun. 06, 2016
Cisco Technology, Inc., San Jose, CA (US);
Srinath Gundavelli, San Jose, CA (US);
Abhijit Choudhury, Cupertino, CA (US);
Rohit Suri, Fremont, CA (US);
Venkatesh Kanagasabapathy, San Jose, CA (US);
Bhavannarayana Nelakanti, Sunnyvale, CA (US);
Sudhir Jain, Fremont, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
Techniques are provided to manage how router advertisement messages are forwarded for ultimate wireless transmission in a wireless network. In one embodiment, a multicast router advertisement message intended for a virtual local area network is converted into individual unicast router advertisement messages directed to specific wireless mobile client devices that are part of that virtual local area network. In another embodiment, router advertisement messages are routed between controllers according to the current location of a wireless mobile client device. In still other embodiments, techniques are provided to minimize the volume of the router advertisement messages sent over a wireless network, and to proactively send a unicast router advertisement message to a mobile client device that has performed a handoff, without waiting for a router solicitation message.