Data Fields for In-situ OAM
draft-ietf-ippm-ioam-data-09
ippm F. Brockners
Internet-Draft S. Bhandari
Intended status: Standards Track C. Pignataro
Expires: September 9, 2020 Cisco
H. Gredler
RtBrick Inc.
J. Leddy
S. Youell
JPMC
T. Mizrahi
Huawei Network.IO Innovation Lab
D. Mozes
P. Lapukhov
Facebook
R. Chang
Barefoot Networks
D. Bernier
Bell Canada
J. Lemon
Broadcom
March 08, 2020
Data Fields for In-situ OAM
draft-ietf-ippm-ioam-data-09
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
discusses the data fields and associated data types for in-situ OAM.
In-situ OAM data fields can be encapsulated into a variety of
protocols such as NSH, Segment Routing, Geneve, IPv6 (via extension
header), or IPv4. In-situ OAM can be used to complement OAM
mechanisms based on e.g. ICMP or other types of probe packets.
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
working documents as Internet-Drafts. The list of current Internet-
Drafts is at https://datatracker.ietf.org/drafts/current/.
Brockners, et al. Expires September 9, 2020 [Page 1]
Internet-Draft In-situ OAM Data Fields March 2020
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This Internet-Draft will expire on September 9, 2020.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Conventions . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. Scope, Applicability, and Assumptions . . . . . . . . . . . . 4
4. IOAM Data-Fields, Types, Nodes . . . . . . . . . . . . . . . 6
4.1. IOAM Data-Fields and Option-Types . . . . . . . . . . . . 6
4.2. IOAM-Domains and types of IOAM Nodes . . . . . . . . . . 6
4.3. IOAM-Namespaces . . . . . . . . . . . . . . . . . . . . . 8
4.4. IOAM Trace Option-Types . . . . . . . . . . . . . . . . . 10
4.4.1. Pre-allocated and Incremental Trace Option-Types . . 12
4.4.2. IOAM node data fields and associated formats . . . . 16
4.4.3. Examples of IOAM node data . . . . . . . . . . . . . 22
4.5. IOAM Proof of Transit Option-Type . . . . . . . . . . . . 24
4.5.1. IOAM Proof of Transit Type 0 . . . . . . . . . . . . 26
4.6. IOAM Edge-to-Edge Option-Type . . . . . . . . . . . . . . 27
5. Timestamp Formats . . . . . . . . . . . . . . . . . . . . . . 29
5.1. PTP Truncated Timestamp Format . . . . . . . . . . . . . 29
5.2. NTP 64-bit Timestamp Format . . . . . . . . . . . . . . . 30
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