Techniques to Improve the Scalability of RSVP Traffic Engineering Deployments
draft-ietf-teas-rsvp-te-scaling-rec-09
TEAS Working Group V. Beeram, Ed.
Internet-Draft Juniper Networks
Intended status: Standards Track I. Minei
Expires: August 18, 2018 R. Shakir
Google, Inc
D. Pacella
Verizon
T. Saad
Cisco Systems
February 14, 2018
Techniques to Improve the Scalability of RSVP Traffic Engineering
Deployments
draft-ietf-teas-rsvp-te-scaling-rec-09
Abstract
At the time of writing, networks which utilize RSVP Traffic
Engineering (RSVP-TE) Label Switched Paths (LSPs) are encountering
limitations in the ability of implementations to support the growth
in the number of LSPs deployed.
This document defines two techniques, "Refresh-Interval Independent
RSVP (RI-RSVP)" and "Per-Peer Flow-Control", that reduce the number
of processing cycles required to maintain RSVP-TE LSP state in Label
Switching Routers (LSRs) and hence allow implementations to support
larger scale deployments.
Requirements Language
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
"OPTIONAL" in this document are to be interpreted as described in BCP
14 [RFC2119] [RFC8174] when, and only when, they appear in all
capitals, as shown here.
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute
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Drafts is at http://datatracker.ietf.org/drafts/current/.
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Internet-Draft RSVP-TE Scaling - Techniques February 2018
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This Internet-Draft will expire on August 18, 2018.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Requirement for RFC2961 Support . . . . . . . . . . . . . . . 3
2.1. Required Functionality from RFC2961 to be Implemented . . 4
2.2. Making Acknowledgements Mandatory . . . . . . . . . . . . 4
3. Refresh-Interval Independent RSVP (RI-RSVP) . . . . . . . . . 4
3.1. Capability Advertisement . . . . . . . . . . . . . . . . 5
3.2. Compatibility . . . . . . . . . . . . . . . . . . . . . . 6
4. Per-Peer RSVP Flow-Control . . . . . . . . . . . . . . . . . 6
4.1. Capability Advertisement . . . . . . . . . . . . . . . . 7
4.2. Compatibility . . . . . . . . . . . . . . . . . . . . . . 7
5. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 7
6. Contributors . . . . . . . . . . . . . . . . . . . . . . . . 7
7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 8
7.1. Capability Object Values . . . . . . . . . . . . . . . . 8
8. Security Considerations . . . . . . . . . . . . . . . . . . . 8
9. References . . . . . . . . . . . . . . . . . . . . . . . . . 8
9.1. Normative References . . . . . . . . . . . . . . . . . . 8
9.2. Informative References . . . . . . . . . . . . . . . . . 9
Appendix A. Recommended Defaults . . . . . . . . . . . . . . . . 9
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 10
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