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:
May. 04, 2010
Filed:
Apr. 21, 2005
Danyang Zheng, Fremont, CA (US);
Ping LI, Fremont, CA (US);
Jack C. Cham, San Leandro, CA (US);
Charles Shen, Fremont, CA (US);
Danyang Zheng, Fremont, CA (US);
Ping Li, Fremont, CA (US);
Jack C. Cham, San Leandro, CA (US);
Charles Shen, Fremont, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A method and apparatus for determining information associated with a particular multicast channel in a multicast network are disclosed. In accordance with the method, a request message requesting information associated with the particular multicast channel is generated and sent to the multicast network. Further, the request message is propagated downstream in a recursive manner via a multicast topology of the multicast network. A response to the request message is propagated upstream via the multicast topology to generate a response message including requested information associated with the particular multicast channel. The information may comprise number of users receiving the particular multicast channel.