Low-Power and Lossy Networks (LLNs) have unique characteristics compared with traditional wired and ad hoc networks that require the specification of new routing metrics and constraints. By contrast@ with typical Interior Gateway Protocol (IGP) routing metrics using hop counts or link metrics@ this document specifies a set of link and node routing metrics and constraints suitable to LLNs to be used by the Routing Protocol for Low-Power and Lossy Networks (RPL).
RFC 6551-2012 history
2012RFC 6551-2012 Routing Metrics Used for Path Calculation in Low-Power and Lossy Networks