发明授权
- 专利标题: Localized multicast in a low power and lossy network based on rank-based distance
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申请号: US16789862申请日: 2020-02-13
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公开(公告)号: US11431518B2公开(公告)日: 2022-08-30
- 发明人: Pascal Thubert , Huimin She , Chuanwei Li , Lele Zhang
- 申请人: Cisco Technology, Inc.
- 申请人地址: US CA San Jose
- 专利权人: Cisco Technology, Inc.
- 当前专利权人: Cisco Technology, Inc.
- 当前专利权人地址: US CA San Jose
- 代理商 Leon R. Turkevich
- 主分类号: H04L12/18
- IPC分类号: H04L12/18 ; H04L12/46 ; H04L45/00 ; H04L1/08
摘要:
In one embodiment, a method comprises: identifying, by a low power and lossy network (LLN) device in a low power and lossy network, a minimum distance value and a distance limit value for limiting multicast propagation, initiated at the LLN device, of a multicast data message in the LLN; and multicast transmitting, by the LLN device, the multicast data message with a current distance field specifying the minimum distance value and a distance limit field specifying the distance limit value, the multicast transmitting causing a receiving LLN device having a corresponding rank in the LLN to respond to the multicast data message by: (1) determining an updated distance based on adding to the current distance field a rank difference between the receiving LLN device and the LLN device, and (2) selectively retransmitting the multicast data message if the updated distance is less than the distance limit value.
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