In-situ OAM Deployment
draft-brockners-opsawg-ioam-deployment-02
opsawg F. Brockners
Internet-Draft S. Bhandari
Intended status: Best Current Practice Cisco
Expires: March 11, 2021 D. Bernier
Bell Canada
September 7, 2020
In-situ OAM Deployment
draft-brockners-opsawg-ioam-deployment-02
Abstract
In-situ Operations, Administration, and Maintenance (IOAM) records
operational and telemetry information in the packet while the packet
traverses a path between two points in the network. This document
provides a framework for IOAM deployment and provides best current
practices.
Status of This Memo
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provisions of BCP 78 and BCP 79.
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This Internet-Draft will expire on March 11, 2021.
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Copyright (c) 2020 IETF Trust and the persons identified as the
document authors. All rights reserved.
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Brockners, et al. Expires March 11, 2021 [Page 1]
Internet-Draft In-situ OAM Deployment September 2020
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Conventions . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. IOAM Deployment: Domains And Nodes . . . . . . . . . . . . . 4
4. Types of IOAM . . . . . . . . . . . . . . . . . . . . . . . . 5
4.1. Per-hop Tracing IOAM . . . . . . . . . . . . . . . . . . 6
4.2. Proof of Transit IOAM . . . . . . . . . . . . . . . . . . 8
4.3. Edge to Edge IOAM . . . . . . . . . . . . . . . . . . . . 8
4.4. Direct Export IOAM . . . . . . . . . . . . . . . . . . . 8
5. IOAM Encapsulations . . . . . . . . . . . . . . . . . . . . . 8
5.1. IPv6 . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5.2. NSH . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.3. GRE . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.4. Geneve . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.5. Segment Routing . . . . . . . . . . . . . . . . . . . . . 9
5.6. Segment Routing for IPv6 . . . . . . . . . . . . . . . . 10
5.7. VXLAN-GPE . . . . . . . . . . . . . . . . . . . . . . . . 10
6. IOAM Data Export . . . . . . . . . . . . . . . . . . . . . . 10
7. IOAM Deployment Considerations . . . . . . . . . . . . . . . 11
7.1. IOAM Namespaces . . . . . . . . . . . . . . . . . . . . . 11
7.2. IOAM Layering . . . . . . . . . . . . . . . . . . . . . . 13
7.3. IOAM Trace Option Types . . . . . . . . . . . . . . . . . 14
7.4. Traffic-sets That IOAM Is Applied To . . . . . . . . . . 16
7.5. IOAM Loopback Mode . . . . . . . . . . . . . . . . . . . 16
7.6. IOAM Active Mode . . . . . . . . . . . . . . . . . . . . 16
7.7. Brown Field Deployments: IOAM Unaware Nodes . . . . . . . 17
8. IOAM Manageability . . . . . . . . . . . . . . . . . . . . . 17
9. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 18
10. Security Considerations . . . . . . . . . . . . . . . . . . . 18
11. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 19
12. References . . . . . . . . . . . . . . . . . . . . . . . . . 19
12.1. Normative References . . . . . . . . . . . . . . . . . . 19
12.2. Informative References . . . . . . . . . . . . . . . . . 19
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 22
1. Introduction
"In-situ" Operations, Administration, and Maintenance (IOAM) records
OAM information within the packet while the packet traverses a
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