A Multi-Path Concurrent Measurement Protocol for IPPM
draft-dang-ippm-multiple-path-measurement-01
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Network Working Group D. Dang, Ed.
Internet-Draft Huawei
Intended status: Informational W. Wang
Expires: September 11, 2019 China Telecom
March 10, 2019
A Multi-Path Concurrent Measurement Protocol for IPPM
draft-dang-ippm-multiple-path-measurement-01
Abstract
This test method can test multi-paths concurrently between two edge
nodes. This document details Multi-Path Concurrent Measurement
Protocol (MPCMP).
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
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This Internet-Draft will expire on September 11, 2019.
Copyright Notice
Copyright (c) 2019 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
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Dang & Wang Expires September 11, 2019 [Page 1]
Internet-DraAtOne-Way Multi-Path Concurrent Measurement Prot March 2019
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1. Requirements Language . . . . . . . . . . . . . . . . . . 2
1.2. Terminology & Abbreviations . . . . . . . . . . . . . . . 2
2. Overview of Multi-Path Concurrent Measurement Protocol . . . 3
3. MPCMP-Test Packet Format and Content . . . . . . . . . . . . 3
4. Expansion based on various measurement methods . . . . . . . 6
4.1. IOAM . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5. Data Export . . . . . . . . . . . . . . . . . . . . . . . . . 6
6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 6
7. Security Considerations . . . . . . . . . . . . . . . . . . . 6
8. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 6
9. Normative References . . . . . . . . . . . . . . . . . . . . 6
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 7
1. Introduction
In load-balancing scenario, there are multiple paths adopted between
two edge nodes. The traffic from the Scr node to the Dst node is
required to be steered into to the specific path/paths basing on the
SLA information of each path. In the traditional method, the paths
are measured separately. If you want to ensure that the data
obtained by the test is available and accurate, then the test start
and end points of this set of Paths must be consistent.
The Multi-Path Concurrent Measurement Protocol (MPCMP) is required,
which can be used bi-directionally to concurrently measure multi-
paths metrics between two network elements. At the same time, this
method also saves the number of test messages and reduces the load on
the network.
1.1. Requirements Language
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in RFC 2119.
1.2. Terminology & Abbreviations
o Mutiple Paths
* There are multiple paths between two nodes in the network.
These paths may be equal-cost multi-path (ECMP) mode or
unequal-cost multiple (UCMP) mode. In a real network, they
might be one [draft-ietf-spring-segment-routing-policy] or
[RFC7348] tunnel.
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Internet-DraAtOne-Way Multi-Path Concurrent Measurement Prot March 2019
o Concurrent
* In order to ensure comparability between multiple paths, the
test start point and the test end point are required to be
synchronized.
2. Overview of Multi-Path Concurrent Measurement Protocol
The Multi-Path Concurrent Measurement Protocol (MPCMP) is an open
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