Domain Subobjects for Resource Reservation Protocol - Traffic Engineering (RSVP-TE)
RFC 7898
Internet Engineering Task Force (IETF) D. Dhody
Request for Comments: 7898 U. Palle
Category: Experimental V. Kondreddy
ISSN: 2070-1721 Huawei Technologies
R. Casellas
CTTC
June 2016
Domain Subobjects
for Resource Reservation Protocol - Traffic Engineering (RSVP-TE)
Abstract
The Resource Reservation Protocol - Traffic Engineering (RSVP-TE)
specification and the Generalized Multiprotocol Label Switching
(GMPLS) extensions to RSVP-TE allow abstract nodes and resources to
be explicitly included in a path setup. Further, Exclude Route
extensions to RSVP-TE allow abstract nodes and resources to be
explicitly excluded in a path setup.
This document specifies new subobjects to include or exclude
Autonomous Systems (ASes), which are identified by a 4-byte AS
number, and Interior Gateway Protocol (IGP) areas during path setup.
Status of This Memo
This document is not an Internet Standards Track specification; it is
published for examination, experimental implementation, and
evaluation.
This document defines an Experimental Protocol for the Internet
community. This document is a product of the Internet Engineering
Task Force (IETF). It represents the consensus of the IETF
community. It has received public review and has been approved for
publication by the Internet Engineering Steering Group (IESG). Not
all documents approved by the IESG are a candidate for any level of
Internet Standard; see Section 2 of RFC 7841.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc7898.
Dhody, et al. Experimental [Page 1]
RFC 7898 Domain Subobjects for RSVP-TE June 2016
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1. Scope . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2. Requirements Language . . . . . . . . . . . . . . . . . . 4
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 4
3. Subobjects for Domains . . . . . . . . . . . . . . . . . . . 5
3.1. Domains . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.2. Explicit Route Object (ERO) Subobjects . . . . . . . . . 6
3.2.1. Autonomous System . . . . . . . . . . . . . . . . . . 6
3.2.2. IGP Area . . . . . . . . . . . . . . . . . . . . . . 7
3.2.3. Mode of Operation . . . . . . . . . . . . . . . . . . 8
3.3. Exclude Route Object (XRO) Subobjects . . . . . . . . . . 9
3.3.1. Autonomous System . . . . . . . . . . . . . . . . . . 9
3.3.2. IGP Area . . . . . . . . . . . . . . . . . . . . . . 9
3.3.3. Mode of Operation . . . . . . . . . . . . . . . . . . 10
3.4. Explicit Exclusion Route Subobject . . . . . . . . . . . 10
4. Interaction with Path Computation Element (PCE) . . . . . . . 10
5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 11
5.1. New Subobjects . . . . . . . . . . . . . . . . . . . . . 11
6. Security Considerations . . . . . . . . . . . . . . . . . . . 11
7. References . . . . . . . . . . . . . . . . . . . . . . . . . 12
7.1. Normative References . . . . . . . . . . . . . . . . . . 12
7.2. Informative References . . . . . . . . . . . . . . . . . 13
Appendix A. Examples . . . . . . . . . . . . . . . . . . . . . . 14
A.1. Inter-Area LSP Path Setup . . . . . . . . . . . . . . . . 14
A.2. Inter-AS LSP Path Setup . . . . . . . . . . . . . . . . . 15
A.2.1. Example 1 . . . . . . . . . . . . . . . . . . . . . . 15
A.2.2. Example 2 . . . . . . . . . . . . . . . . . . . . . . 16
Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . 17
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 18
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