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. 04, 2011
Filed:
Jul. 20, 2007
Tameen Khan, Santa Clara, CA (US);
Ronak Desai, Fremont, CA (US);
Dino Farinacci, San Jose, CA (US);
Tameen Khan, Santa Clara, CA (US);
Ronak Desai, Fremont, CA (US);
Dino Farinacci, San Jose, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A method and system for preventing loops in a network including network devices operating different protocols for providing loop-free topology are disclosed. In one embodiment, a method includes receiving link state information at a network device operating a first protocol and in communication with a network device operating a second protocol, creating at least one tunnel to one or more other network devices operating the first protocol and in communication with a network device operating the second protocol, receiving a proposal, blocking designated boundary ports in communication with network devices operating the second protocol, and transmitting an agreement.