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:
Jul. 28, 2020
Filed:
Feb. 08, 2019
Barefoot Networks, Inc., Santa Clara, CA (US);
Anurag Agrawal, Santa Clara, CA (US);
Julianne Zhu, Los Gatos, CA (US);
Barefoot Networks, Inc., Santa Clara, CA (US);
Abstract
A method of forwarding a multicast packet by a physical forwarding element is provided. The method receives a multicast packet that identifies a multicast group. The method scans a multicast tree associated with the multicast group to identify an ECMP group for forwarding the multicast packet to a member of the multicast group. The method calculates a group of hash values on several fields of the packet and uses a first hash value in the group of hash values to identify a first path in the ECMP. The method determines that the identified path has failed. The method uses a second hash value to identify a second path in the ECMP. The method forwards the multicast packet to the multicast member through the second path.