Invention Grant
- Patent Title: Directed multicast based on multi-dimensional addressing relative to identifiable LLN properties
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Application No.: US16838252Application Date: 2020-04-02
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Publication No.: US11349807B2Publication Date: 2022-05-31
- Inventor: Pascal Thubert , Yinfang Wang , Huimin She , Feiliang Wang
- Applicant: Cisco Technology, Inc.
- Applicant Address: US CA San Jose
- Assignee: Cisco Technology, Inc.
- Current Assignee: Cisco Technology, Inc.
- Current Assignee Address: US CA San Jose
- Agent Leon R. Turkevich
- Main IPC: H04L29/12
- IPC: H04L29/12 ; H04L12/24 ; H04L29/06 ; H04L12/18 ; H04L61/5069 ; H04L41/12 ; H04L69/22 ; H04L101/659

Abstract:
In one embodiment, a method comprises: receiving, by a root network device providing a DAG topology in a low power and lossy network (LLN), one or more multicast registration messages from an LLN device and identifying distinct properties of the LLN device; receiving, by the root network device, one or more multicast address group identifiers of one or more multicast streams to which the LLN device has subscribed, and associating the one or more multicast address group identifiers with the distinct properties; receiving a multicast message specifying one of the multicast address group identifiers; and generating, by the root network device, a directed multicast message having a multi-dimensional addressing data structure comprising a selected one of the distinct properties and the one multicast address group identifier, causing parent network devices in the DAG topology to selectively retransmit based on determining a child network device has the selected one distinct property.
Public/Granted literature
- US20210314290A1 DIRECTED MULTICAST BASED ON MULTI-DIMENSIONAL ADDRESSING RELATIVE TO IDENTIFIABLE LLN PROPERTIES Public/Granted day:2021-10-07
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