Building alternate routes in reactive routing networks

摘要

In one embodiment, an intermediate node in a computer network may receive one or more reactive routing route requests (RREQs) from an originating node and, based on those RREQs, may build a first directed acyclic graph (DAG) in the computer network that may be rooted at the originating node. The intermediate node may then forward the RREQs towards a target node in the computer network. The intermediate node may then receive one or more reactive routing route responses (RREPs) from the target node. Based on those RREPs, the intermediate node may then build a second DAG in the computer network that may be rooted at the target node. The intermediate node may then forward the RREPs towards the originating node. In this manner, the intermediate node may then forward traffic from the originating node toward the target node according to the second DAG (with alternate routes to the target node).