Extensions of Host Identity Protocol (HIP) with Hierarchical Information
This document briefly introduces the benefits brought by extending the Host Identity Protocol (HIP) with hierarchical information. In addition, two hierarchical extensions of HIP are introduced. The first one aims to transport hierarchical information in a parameter of the HIP header, while the second one extends DNS resource records in order to contain hierarchical information. Conventions used in this document The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in RFC-2119 [RFC2119].