Network Working Group K. Kompella
Request for Comments: 3936 Juniper Networks
Updates: 3209, 2205 J. Lang
BCP: 96 Rincon Networks
Category: Best Current Practice October 2004
Procedures for Modifying the Resource reSerVation Protocol (RSVP)
Status of this Memo
This document specifies an Internet Best Current Practices for the
Internet Community, and requests discussion and suggestions for
improvements. Distribution of this memo is unlimited.
Copyright Notice
Copyright (C) The Internet Society (2004).
Abstract
This memo specifies procedures for modifying the Resource reSerVation
Protocol (RSVP). This memo also lays out new assignment guidelines
for number spaces for RSVP messages, object classes, class-types, and
sub-objects.
1. Introduction
This memo specifies procedures for modifying the Resource reSerVation
Protocol (RSVP) [RSVP], including (but not limited to) adding,
updating, extending or obsoleting: messages, message formats and
procedures, object classes and class types, object formats and
procedures; header formats, error codes and subcodes and semantics,
and procedures for sending, receiving, and addressing RSVP messages.
IANA recognizes the following RSVP name spaces: Message Types, Class
Names, Class Numbers, Class Types and Sub-objects, Virtual
Destination Ports, and Error Codes and (Subcode) Values (all of these
will collectively be referred to as RSVP entities in this document).
This memo specifies ranges for each name space and assignment
policies for each range. New RSVP name spaces must be defined in a
Standards Track RFC which include guidelines for IANA assignments
within the new name spaces.
The assignment policies used in this document are: Standards Action
(as defined in [IANA]), Expert Review, and Organization/Vendor
Private (more simply, "Vendor Private"); the last two are defined in
this document. The intent of these assignment policies is to ensure
Kompella & Lang Best Current Practice [Page 1]
RFC 3936 Procedures for Modifying RSVP October 2004
that extensions to RSVP receive adequate review before code-points
are assigned, without being overly rigid. Thus, if an extension is
widely accepted and its ramifications are well understood, it may
receive an assignment from the Standards Action space; however, if an
extension is experimental in nature, it receives an assignment from
the Expert Review space, and may, with maturity, move to Standards
Track. Assignments from the Vendor Private space are not reviewed,
but there are mechanisms in place to ensure that these codepoints can
co-exist in a network without harm.
A standards body other than the IETF that wishes to obtain an
assignment for an RSVP entity must decide from which type of
name/number space they desire their assignment be made from, and then
submit the appropriate documentation. For example, if the assignment
is to be made from a number space designated as Standards Action, a
Standards Track RFC MUST be submitted in support of the request for
assignment.
This memo updates the IANA Considerations section (section 7) of
[RSVP-TE], replacing the assignment policies stated there.
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 BCP 14, RFC 2119
[KEYWORDS].
2. Assignment Policies for RSVP Entities
For each of the RSVP name spaces identified by IANA, the space is
divided into assignment ranges; the following terms are used in
describing the procedures by which IANA assigns values: "Standards
Action" (as defined in [IANA]), "Expert Review", and
"Organization/Vendor Private", defined below.
"Expert Review" ranges refer to values that are to be reviewed by an
Expert designated by the IESG. The code points from these ranges are
typically used for experimental extensions; such assignments MUST be
requested by Experimental RFCs that document their use and
processing, and the actual assignments made during the IANA actions
for the document. Values from "Expert Review" ranges MUST be
registered with IANA.
"Organization/Vendor Private" ranges refer to values that are
enterprise-specific; these MUST NOT be registered with IANA. For
datatracker.ietf.org