The IESG has approved the following document: - 'LISP Canonical Address Format (LCAF)' (draft-ietf-lisp-lcaf-22.txt) as Experimental RFC This document is the product of the Locator/ID Separation Protocol Working Group. The IESG contact persons are Alvaro Retana, Alia Atlas and Deborah Brungard. A URL of this Internet Draft is: https://datatracker.ietf.org/doc/draft-ietf-lisp-lcaf/ Technical Summary This document describes a canonical address format encoding used in the ocator/ID Separation Protocol (LISP), more precisely in the lookup keys of the LISP mapping system and related control messages. The intent is to define a general syntax that includes Address Family Identifier (AFI), length, and value fields. Such general syntax aims at enabling an easy evolution of the protocol to support future applications. Working Group Summary The document has been around for a while, and has been discussed several times. From the beginning, there was strong support, because the WG felt that the flexibility introduced by a canonical address encoding was an important feature, which would enable using LISP to be used for use-cases and applications which are not in the original scope of the protocol. Such support never faded. Discussion in the WG group mostly focused on the initial type allocation and their definition. The WG converged on splitting the initial type allocation and their usage in two different sections. Section 4 of the document defines types for which the use-cases are well defined and implementation exists or are ongoing. Section 5 contains types that have a more experimental nature, for which they usage is either not yet clearly identified or not completely defined. Document Quality The LCAF is currently supported by various LISP implementations. May be not all of the types are supported but the basic encoding syntax and types are there. Personnel Who is the Document Shepherd for this document? Luigi Iannone Who is the Responsible Area Director? Deborah Brungard