Segment Routing Header encapsulation for In-situ OAM Data
draft-ali-spring-ioam-srv6-03
SPRING Working Group Z. Ali
Internet-Draft R. Gandhi
Intended status: Standards Track C. Filsfils
Expires: May 14, 2021 F. Brockners
N. Nainar
C. Pignataro
Cisco Systems, Inc.
C. Li
M. Chen
Huawei
G. Dawra
LinkedIn
November 15, 2020
Segment Routing Header encapsulation for In-situ OAM Data
draft-ali-spring-ioam-srv6-03
Abstract
OAM and PM information from the SR endpoints can be piggybacked in
the data packet. The OAM and PM information piggybacking in the data
packets is also known as In-situ OAM (IOAM). IOAM records
operational and telemetry information in the data packet while the
packet traverses a path between two points in the network. This
document defines how IOAM data fields are transported as part of the
Segment Routing with IPv6 data plane (SRv6) header.
Status of This Memo
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This Internet-Draft will expire on May 14, 2021.
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Ali, et al. Expires May 14, 2021 [Page 1]
Internet-Draft In-situ OAM SRv6 encapsulation
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Conventions . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1. Requirement Language . . . . . . . . . . . . . . . . . . . 3
2.2. Abbreviations . . . . . . . . . . . . . . . . . . . . . . 3
3. OAM Metadata Piggybacked in Data Packets . . . . . . . . .. . 4
3.1 IOAM Data Field Encapsulation in SRH . . . . . . . . . . . . 4
4. Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4.1. Ingress Node . . . . . . . . . . . . . . . . . . . . . . . 5
4.2. SR Segment Endpoint Node . . . . . . . . . . . . . . . . . 5
4.3. Egress Node . . . . . . . . . . . . . . . . . . . . . . . 6
5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 6
6. Security Considerations . . . . . . . . . . . . . . . . . . . 6
7. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 6
8. References . . . . . . . . . . . . . . . . . . . . . . . . . . 7
8.1. Normative References . . . . . . . . . . . . . . . . . . . 7
8.2. Informative References . . . . . . . . . . . . . . . . . . 7
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 8
1. Introduction
OAM and PM information from the SR endpoints can be piggybacked in
the data packet. The OAM and PM information piggybacking in the data
packets is also known as In-situ OAM (IOAM). IOAM records
OAM information within the packet while the packet traverses a
particular network domain. The term "in-situ" refers to the fact
that the IOAM data fields are added to the data packets rather than
being sent within probe packets specifically dedicated to OAM.
This document defines how IOAM data fields are transported as part of
the Segment Routing with IPv6 data plane (SRv6) header
[I-D.6man-segment-routing-header].
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