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:
Sep. 07, 2010
Filed:
Apr. 23, 2008
Ashok Narayanan, Lexington, MA (US);
Robert Goguen, Acton, MA (US);
Ali Sajassi, San Ramon, CA (US);
Samir Vapiwala, Nashua, NH (US);
Ashok Narayanan, Lexington, MA (US);
Robert Goguen, Acton, MA (US);
Ali Sajassi, San Ramon, CA (US);
Samir Vapiwala, Nashua, NH (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A method and apparatus for establishing multicast and unicast forwarding are disclosed. In one embodiment, a method includes transmitting path messages to a plurality of receivers, receiving a plurality of messages in response to the path messages and establishing unicast and multicast forwarding based on received unicast and multicast labels. Each of the receivers is associated with a sub-LSP (Label Switched Path) in a Point-to-Multipoint (P2MP) LSP and the response messages include a multicast label and at least one unicast label corresponding to a unicast path to one of the receivers.