United States Patent for Apparatus and Method for Optimized Route Invalidation Using Modified No-Path DAO Signaling Issued to Huawei Technologies

Published date20 July 2021
The abstract released by U.S. Patent and Trademark Office states, "Example apparatus and methods for optimized route invalidation using modified no-path Destination Oriented Directed Acyclic Graph Advertisement Object (DAO) signaling are disclosed. In one example method, a node switching its current parent is adapted to send a regular DAO message. Using the changed signaling, a common ancestor node generates a No-Path destination oriented directed acyclic graph advertisement object message (NPDAO) on behalf of the switching node on receiving a refreshed DAO from an...

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