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US Patent 11190367 Multicast forwarding method and multicast router

Patent 11190367 was granted and assigned to Huawei on November, 2021 by the United States Patent and Trademark Office.

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Patent
Patent

Patent attributes

Patent Applicant
Huawei
Huawei
Current Assignee
Huawei
Huawei
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
11190367
Date of Patent
November 30, 2021
Patent Application Number
16830864
Date Filed
March 26, 2020
Patent Primary Examiner
‌
Mansour Oveissi
Patent abstract

This application discloses a multicast forwarding method and a multicast router. The method includes: listening to, by a first multicast router, a plurality of unicast packets passing through the first multicast router, and determining a set of unicast packets that are from a same upstream multicast router and that belong to a same unicast stream; when determining that destination addresses of at least two unicast packets in the unicast packet set are different, sending, by the first multicast router, a prune message to the upstream multicast router; and sending, by the first multicast router, the received unicast packets with the multicast identifier to the destination devices corresponding to the destination address group. The method is used to provide a new multicast method, so as to implement multicast functions of some routers in an existing unicast network architecture.

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