Extensions to Generic Aggregate RSVP for IPv4 and IPv6 Reservations over Pre-Congestion Notification (PCN) Domains
RFC 7417
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Type |
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RFC - Experimental
(December 2014; No errata)
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Last updated |
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2015-10-14
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IETF
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WG state
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Submitted to IESG for Publication
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Document shepherd |
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David Black
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Shepherd write-up |
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Show
(last changed 2014-09-19)
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RFC 7417 (Experimental)
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Yes
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Spencer Dawkins
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RFC-Ed-Ack
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Internet Engineering Task Force (IETF) G. Karagiannis
Request for Comments: 7417 Huawei Technologies
Category: Experimental A. Bhargava
ISSN: 2070-1721 Cisco Systems, Inc.
December 2014
Extensions to Generic Aggregate RSVP for IPv4 and IPv6 Reservations
over Pre-Congestion Notification (PCN) Domains
Abstract
This document specifies extensions to Generic Aggregate RSVP (RFC
4860) for support of the Pre-Congestion Notification (PCN) Controlled
Load (CL) and Single Marking (SM) edge behaviors over a Diffserv
cloud using PCN.
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 5741.
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/rfc7417.
Karagiannis & Bhargava Experimental [Page 1]
RFC 7417 Aggregate RSVP over PCN December 2014
Copyright Notice
Copyright (c) 2014 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Karagiannis & Bhargava Experimental [Page 2]
RFC 7417 Aggregate RSVP over PCN December 2014
Table of Contents
1. Introduction ....................................................4
1.1. Objective ..................................................4
1.2. Overview and Motivation ....................................5
1.3. Requirements Language and Terminology ......................8
1.4. Organization of This Document .............................12
2. Overview of RSVP Extensions and Operations .....................12
2.1. Overview of RSVP Aggregation Procedures in PCN-Domains ....12
2.2. PCN-Marking, Encoding, and Transport of
Pre-congestion Information ................................14
2.3. Traffic Classification within the Aggregation Region ......14
2.4. Deaggregator (PCN-Egress-Node) Determination ..............15
2.5. Mapping E2E Reservations onto Aggregate Reservations ......15
2.6. Size of Aggregate Reservations ............................16
2.7. E2E Path ADSPEC Update ....................................16
2.8. Intra-domain Routes .......................................16
2.9. Inter-domain Routes .......................................16
2.10. Reservations for Multicast Sessions ......................16
2.11. Multi-level Aggregation ..................................16
2.12. Reliability Issues .......................................17
3. Elements of Procedures .........................................17
3.1. Receipt of E2E Path Message by PCN-Ingress-Node
(Aggregating Router) ......................................17
3.2. Handling of E2E Path Message by Interior Routers ..........17
3.3. Receipt of E2E Path Message by PCN-Egress-Node
(Deaggregating Router) ....................................18
3.4. Initiation of New Aggregate Path Message by
PCN-Ingress-Node (Aggregating Router) .....................18
3.5. Handling of Aggregate Path Message by Interior Routers ....18
3.6. Handling of Aggregate Path Message by
Deaggregating Router ......................................18
3.7. Handling of E2E Resv Message by Deaggregating Router ......19
3.8. Handling of E2E Resv Message by Interior Routers ..........19
3.9. Initiation of New Aggregate Resv Message by
Deaggregating Router ......................................20
3.10. Handling of Aggregate Resv Message by Interior Routers ...20
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