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:
Oct. 01, 2019
Filed:
Apr. 14, 2017
Cisco Technology, Inc., San Jose, CA (US);
Xiaorong Wang, Shanghai, CN;
Yicheng Liu, Shanghai, CN;
Lianxiang Wang, Shanghai, CN;
Fang Yang, Shanghai, CN;
Gaofeng Tao, Shanghai, CN;
Ijsbrand Wijnands, Leuven, BE;
Cisco Technology, Inc., San Jose, CA (US);
Abstract
Methods and network devices are disclosed for internet protocol (IP) based encapsulation in bit indexed explicit replication (BIER) forwarding. In one embodiment, a method includes receiving a multicast message comprising an inner IP header, an intervening header, and an outer IP header. The embodiment further includes accessing a message bit array stored in the intervening header, retrieving an IP address from an entry in a bit indexed forwarding table, replacing an IP destination address in the outer IP header of a copy of the multicast message with the retrieved IP address, and sending the copy of the multicast message toward a second node in the network, where the retrieved IP address is assigned to the second node. An embodiment of a network device includes a processor operably coupled to a plurality of storage locations and to one or more network interfaces and adapted to perform steps of the method.