RPL is the de-facto IPv6-based routing protocol for the Internet of Things (IoT), where networks are mainly formed by sensors and other low capacity devices. However, RPL lacks scalability and is inefficient in any-to-any communications. In this article, we present IoTorii, a hierarchical protocol that creates routes based on a probe frame, instead of the computation of a distance vector, as in RPL. We implemented a proof-of-concept of IoTorii and compared it with RPL, proving lower number of table entries, decreased exchanged control messages and faster convergence time, with similar path hop count, which is particularly promising in the IoT field.

RPL是物联网（IoT）的基于事实的IPv6路由协议，其中的网络主要由传感器和其他低容量设备组成。但是，RPL缺乏可伸缩性，并且在任何对任何通信中效率都不高。在本文中，我们介绍了IoTorii，这是一种分层协议，它基于探测帧创建路由，而不是像RPL中那样计算距离矢量。我们实施了IoTorii的概念验证，并将其与RPL进行了比较，证明了表条目数量减少，交换的控制消息减少，收敛时间更快，并且路径跳数相似，这在IoT领域特别有希望。