RPL Protocol

RPL is a routing protocol for low power and lossy networks. It’s used not only for 6LoWPAN. This protocol supports Point to Point and Multipoint to point and it’s able to be used for large networks.

It constructs a Destination Oriented Acyclic Graph (DODAG) that could be different in the same network. It would provide different routing criteria to accommodate different types of traffic.

In RPL is easy to adopt network changes and it has a Loop Avoidance mechanism to fight against loop that could appear in node unreachability or link congestion.

RPL takes into account both link and node properties when choosing paths and it hasn`t security because is an optional extension.  It assumes other mechanisms can be used such as link layer.