Multi-Path Concurrent Measurement for IPPM
draft-dang-ippm-multiple-path-measurement-05
Network Working Group D. Dang, Ed.
Internet-Draft Huawei
Intended status: Informational W. Wang
Expires: February 14, 2021 China Telecom
L. LEE
LG U+
C. Cheng
Huawei
August 13, 2020
Multi-Path Concurrent Measurement for IPPM
draft-dang-ippm-multiple-path-measurement-05
Abstract
This test method can test multi-paths concurrently from one edge node
to another edge node. This document details Multi-Path Concurrent
Measurement (MPCM).
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1. Requirements Language . . . . . . . . . . . . . . . . . . 3
1.2. Terminology & Abbreviations . . . . . . . . . . . . . . . 3
2. Overview of MPCM . . . . . . . . . . . . . . . . . . . . . . 4
2.1. Principle . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1.1. Single Path Measurement . . . . . . . . . . . . . . . 4
2.1.2. Multiple Path Measurement . . . . . . . . . . . . . . 6
3. MPCM-Test Packet Format and Content . . . . . . . . . . . . . 7
4. Expansion based on various measurement methods . . . . . . . 10
4.1. IOAM . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5. Data Export . . . . . . . . . . . . . . . . . . . . . . . . . 10
6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 10
7. Security Considerations . . . . . . . . . . . . . . . . . . . 10
8. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 11
9. Normative References . . . . . . . . . . . . . . . . . . . . 11
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 12
1. Introduction
As we know, the current network has been already being in load
balancing mode, however it is partially congested. In other words,
from the same source node to the same destination node, some paths
have been congested to cause a decline in service quality, but some
paths carry less traffic and are lightly loaded. To solve the
problem of unbalanced network load[draft-liu-ican], the first is to
have the ability to detect the quality of the load sharing paths.
And then the traffic from the Scr node to the Dst node is required to
be steered from the congested paths into the lightly loaded path/
paths basing on the SLA's requirement. So it's necessary to measure
the multi-paths in load-balancing mode.
In the traditional method, the paths are measured separately because
they aren't maintained by the path group. If the multiple load
sharing paths are required to be selected based on the SLA
information, the measured SLA information needs to be comparable. If
you want to ensure that the data obtained by the test is available
and accurate, the multi-paths are required to maintain by the path
group in order that the test start and end points must be same.
For example, the low latency services require millisecond delays. If
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