Metrics and Methods for IP Capacity
draft-ietf-ippm-capacity-metric-method-00
Network Working Group A. Morton
Internet-Draft AT&T Labs
Updates: ???? (if approved) R. Geib
Intended status: Standards Track Deutsche Telekom
Expires: August 1, 2020 L. Ciavattone
AT&T Labs
January 29, 2020
Metrics and Methods for IP Capacity
draft-ietf-ippm-capacity-metric-method-00
Abstract
This memo revisits the problem of Network Capacity metrics first
examined in RFC 5136. The memo specifies a more practical Maximum
IP-layer Capacity metric definition catering for measurement
purposes, and outlines the corresponding methods of measurement.
Requirements Language
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
"OPTIONAL" in this document are to be interpreted as described in BCP
14[RFC2119] [RFC8174] when, and only when, they appear in all
capitals, as shown here.
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/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on August 1, 2020.
Morton, et al. Expires August 1, 2020 [Page 1]
Internet-Draft IP Capacity Metrics/Methods January 2020
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Scope and Goals . . . . . . . . . . . . . . . . . . . . . . . 4
3. Motivation . . . . . . . . . . . . . . . . . . . . . . . . . 4
4. General Parameters and Definitions . . . . . . . . . . . . . 5
5. IP-Layer Capacity Singleton Metric Definitions . . . . . . . 6
5.1. Formal Name . . . . . . . . . . . . . . . . . . . . . . . 6
5.2. Parameters . . . . . . . . . . . . . . . . . . . . . . . 6
5.3. Metric Definitions . . . . . . . . . . . . . . . . . . . 6
5.4. Related Round-Trip Delay and Loss Definitions . . . . . . 8
5.5. Discussion . . . . . . . . . . . . . . . . . . . . . . . 8
5.6. Reporting the Metric . . . . . . . . . . . . . . . . . . 8
6. Maximum IP-Layer Capacity Metric Definitions (Statistic) . . 8
6.1. Formal Name . . . . . . . . . . . . . . . . . . . . . . . 8
6.2. Parameters . . . . . . . . . . . . . . . . . . . . . . . 8
6.3. Metric Definitions . . . . . . . . . . . . . . . . . . . 9
6.4. Related Round-Trip Delay and Loss Definitions . . . . . . 10
6.5. Discussion . . . . . . . . . . . . . . . . . . . . . . . 10
6.6. Reporting the Metric . . . . . . . . . . . . . . . . . . 11
7. IP-Layer Sender Bit Rate Singleton Metric Definitions . . . . 11
7.1. Formal Name . . . . . . . . . . . . . . . . . . . . . . . 11
7.2. Parameters . . . . . . . . . . . . . . . . . . . . . . . 11
7.3. Metric Definition . . . . . . . . . . . . . . . . . . . . 12
7.4. Discussion . . . . . . . . . . . . . . . . . . . . . . . 12
7.5. Reporting the Metric . . . . . . . . . . . . . . . . . . 12
8. Method of Measurement . . . . . . . . . . . . . . . . . . . . 12
8.1. Load Rate Adjustment Algorithm (from udpst) . . . . . . . 13
8.2. Measurement Qualification or Verification . . . . . . . . 14
8.3. Measurement Considerations . . . . . . . . . . . . . . . 15
9. Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . 16
10. Security Considerations . . . . . . . . . . . . . . . . . . . 17
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