Internet Research Task Force H. Yang
Internet-Draft D. Chen
Intended status: Informational K. Yao
Expires: May 6, 2021 China Mobile
November 2, 2020
Network measurement intent
draft-yang-nmrg-network-measurement-intent-00
Abstract
This memo introduces network measurement intent, namely the process
of realizing user or network operator to allocate network states as
needed. And it can be as a specified user case of intent based
network.
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 [RFC2119].
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
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Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
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This Internet-Draft will expire on May 6, 2021.
Copyright Notice
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document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Network Measurement Intent . . . . . . . . . . . . . . . . . 3
3. Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
4. Security Considerations . . . . . . . . . . . . . . . . . . . 4
5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 4
6. References . . . . . . . . . . . . . . . . . . . . . . . . . 4
6.1. Normative References . . . . . . . . . . . . . . . . . . 4
6.2. Informative References . . . . . . . . . . . . . . . . . 4
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 4
1. Introduction
Since the development and implementation of intent based network
(IBN) cannot be separated from accurate network state perception,
accurate on demand network measurement technology is becoming more
and more important. The combination of network measurement
technology and IBN can achieve network performance acquisition based
on user/network administrator intent-based, verify whether network
measurement results meet the measurement intent, and further improve
the accuracy of the configuration in IBN.
As the rise of IBN, different groups have different definitions of
intent. For example, in [I-D.irtf-nmrg-ibn-concepts-definitions]
defines intent as intent fulfillment and intent assurance. However,
all different definitions of intent have some common characteristics,
and can be classified according to
[I-D.irtf-nmrg-ibn-intent-classification]. And in order to combine
the network measurement intent with the existing drafts of IBN, we
define the components of the network measurement intent processing
process as follows:
o Intent Translation
o Intent Orchestration and pre-Verification
o Data Collection
o Intent Compliance Assessment
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At the same time, according to
[I-D.irtf-nmrg-ibn-concepts-definitions], network measurement intent
can be classified as network intent, operational task intent or some
other kinds of intent. And a detailed flow of network measurement
intents will be given
2. Network Measurement Intent
Network measurement intent refers to the on-demand measurement of the
network state based on the user/network operators' perceived intent
of the network state. We will present the detailed process of it
within each part and we will take the measurement of busy network
performance as an example.
o Intent Translation. In this function, network measurement intents
need to be translated into actions and requests taken against the
network. In the measurement of busy network performances, due to
dynamic changes such as daily network bandwidth occupancy rate,
the period of network busy time is not fixed. As a result, Intent
Translation can determine the threshold when the network state is
busy on the same day based on the historical data learned by AI.
And then determines the content to be measured.
o Intent Orchestration and pre-Verification. In this function,
Intent Orchestration and pre-Verification determines the
measurement scheme according to the required measurement content
and equipment support degree, and verifies whether the measurement
scheme is feasible. At the same time, it also needs to determine
whether the network is busy according to the current network
state. While the busy time threshold is exceeded, this function
performs automatic network deployment, such as in CLI mode.
o Data Collection. This function is responsible for collecting data
while determining the network is busy according to the current
network state. And more importantly, this data collection process
should start automatically.
o Intent Compliance Assessment. At the end, this function verifies
whether the threshold meets the requirement and whether the
network measurement intent is satisfied. If either of the two
conditions is not satisfied, the network measurement intent will
be modified and re-enter the Intent Orchestration and pre-
Verification.
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3. Summary
This memo introduces the network measurement intent, and give an
example of network measurement of busy network performances. On the
basis of existing intent drafts, this memo can be used as a use case
for IBN.
4. Security Considerations
TBD.
5. IANA Considerations
This document has no requests to IANA.
6. References
6.1. Normative References
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119,
DOI 10.17487/RFC2119, March 1997,
<https://www.rfc-editor.org/info/rfc2119>.
6.2. Informative References
[I-D.irtf-nmrg-ibn-concepts-definitions]
Clemm, A., Ciavaglia, L., Granville, L., and J. Tantsura,
"Intent-Based Networking - Concepts and Definitions",
draft-irtf-nmrg-ibn-concepts-definitions-02 (work in
progress), September 2020.
[I-D.irtf-nmrg-ibn-intent-classification]
Li, C., Havel, O., LIU, W., Olariu, A., Martinez-Julia,
P., Nobre, J., and D. Lopez, "Intent Classification",
draft-irtf-nmrg-ibn-intent-classification-00 (work in
progress), July 2020.
Authors' Addresses
Hongwei Yang
China Mobile
Beijing 100053
China
Email: yanghongwei@chinamobile.com
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Danyang Chen
China Mobile
Beijing 100053
China
Email: chendanyang@chinamobile.com
Kehan Yao
China Mobile
Beijing 100053
China
Email: yaokehan@chinamobile.com
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