Simple TWAMP (STAMP) Extensions for Segment Routing Networks
draft-gandhi-ippm-stamp-srpm-01
IPPM Working Group R. Gandhi, Ed.
Internet-Draft C. Filsfils
Intended status: Standards Track Cisco Systems, Inc.
Expires: July 16, 2021 D. Voyer
Bell Canada
M. Chen
Huawei
B. Janssens
Colt
January 12, 2021
Simple TWAMP (STAMP) Extensions for Segment Routing Networks
draft-gandhi-ippm-stamp-srpm-01
Abstract
Segment Routing (SR) leverages the source routing paradigm. SR is
applicable to both Multiprotocol Label Switching (SR-MPLS) and IPv6
(SRv6) data planes. This document specifies RFC 8762 (Simple Two-Way
Active Measurement Protocol (STAMP)) extensions for Delay and Loss
Measurement in Segment Routing networks, for both SR-MPLS and SRv6
data planes.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Conventions Used in This Document . . . . . . . . . . . . . . 3
2.1. Requirements Language . . . . . . . . . . . . . . . . . . 3
2.2. Abbreviations . . . . . . . . . . . . . . . . . . . . . . 3
2.3. Reference Topology . . . . . . . . . . . . . . . . . . . 4
3. Probe Query Message . . . . . . . . . . . . . . . . . . . . . 4
3.1. Control Code Field Extension for STAMP Messages . . . . . 4
3.2. Loss Measurement Query Message Extensions . . . . . . . . 5
4. Probe Response Message . . . . . . . . . . . . . . . . . . . 8
4.1. Loss Measurement Response Message Extensions . . . . . . 8
5. Node Address TLV Extensions . . . . . . . . . . . . . . . . . 10
6. Return Path TLV Extensions . . . . . . . . . . . . . . . . . 10
7. Security Considerations . . . . . . . . . . . . . . . . . . . 12
8. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 12
9. References . . . . . . . . . . . . . . . . . . . . . . . . . 14
9.1. Normative References . . . . . . . . . . . . . . . . . . 14
9.2. Informative References . . . . . . . . . . . . . . . . . 14
Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . 15
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 15
1. Introduction
Segment Routing (SR) leverages the source routing paradigm and
greatly simplifies network operations for Software Defined Networks
(SDNs). SR is applicable to both Multiprotocol Label Switching (SR-
MPLS) and IPv6 (SRv6) data planes. Built-in SR Performance
Measurement (PM) is one of the essential requirements to provide
Service Level Agreements (SLAs).
The Simple Two-way Active Measurement Protocol (STAMP) provides
capabilities for the measurement of various performance metrics in IP
networks using probe messages [RFC8762]. It eliminates the need for
control-channel signaling by using configuration data model to
provision a test-channel (e.g. UDP paths).
[I-D.ietf-ippm-stamp-option-tlv] defines TLV extensions for STAMP
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