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Traffic Flow Measurement: Architecture (RFC2722)

IP.com Disclosure Number: IPCOM000003317D
Original Publication Date: 1999-Oct-01
Included in the Prior Art Database: 2019-Feb-10
Document File: 48 page(s) / 68K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

N. Brownlee: AUTHOR [+2]

Related Documents

10.17487/RFC2722: DOI

Abstract

This document provides a general framework for describing network traffic flows, presents an architecture for traffic flow measurement and reporting, discusses how this relates to an overall network traffic flow architecture and indicates how it can be used within the Internet. This memo provides information for the Internet community.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 4% of the total text.

Network Working Group N. Brownlee Request for Comments: 2722 The University of Auckland Obsoletes: 2063 C. Mills Category: Informational GTE Laboratories, Inc G. Ruth GTE Internetworking October 1999

Traffic Flow Measurement: Architecture

Status of this Memo

This memo provides information for the Internet community. It does not specify an Internet standard of any kind. Distribution of this memo is unlimited.

Copyright Notice

Copyright (C) The Internet Society (1999). All Rights Reserved.

Abstract

This document provides a general framework for describing network traffic flows, presents an architecture for traffic flow measurement and reporting, discusses how this relates to an overall network traffic flow architecture and indicates how it can be used within the Internet.

Table of Contents

1 Statement of Purpose and Scope 3 1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . 3

2 Traffic Flow Measurement Architecture 5 2.1 Meters and Traffic Flows . . . . . . . . . . . . . . . . . 5 2.2 Interaction Between METER and METER READER . . . . . . . . 7 2.3 Interaction Between MANAGER and METER . . . . . . . . . . 7 2.4 Interaction Between MANAGER and METER READER . . . . . . . 8 2.5 Multiple METERs or METER READERs . . . . . . . . . . . . . 9 2.6 Interaction Between MANAGERs (MANAGER - MANAGER) . . . . . 10 2.7 METER READERs and APPLICATIONs . . . . . . . . . . . . . . 10

3 Traffic Flows and Reporting Granularity 10 3.1 Flows and their Attributes . . . . . . . . . . . . . . . . 10 3.2 Granularity of Flow Measurements . . . . . . . . . . . . . 13 3.3 Rolling Counters, Timestamps, Report-in-One-Bucket-Only . 15

Brownlee, et al. Informational [Page 1]

RFC 2722 Traffic Flow Measurement: Architecture October 1999

4 Meters 17 4.1 Meter Structure . . . . . . . . . . . . . . . . . . . . . 17 4.2 Flow Table . . . . . . . . . . . . . . . . . . . . . . . . 19 4.3 Packet Handling, Packet Matching . . . . . . . . . . . . . 20 4.4 Rules and Rule Sets . . . . . . . . . . . . . . . . . . . 23 4.5 Maintaining the Flow Table . . . . . . . . . . . . . . . . 28 4.6 Handling Increasing Traffic Levels . . . . . . . . . . . . 29

5 Meter Readers 30 5.1 Identifying Flows in Flow Records . . . . . . . . . . . . 30 5.2 Usage Records, Flow Data Files . . . . . . . . . . . . . . 30 5.3 Meter to Meter Reader: Usage Record Transmission . . . . 31

6 Managers 32 6.1 Between Manager and Meter: Control Functions . . . . . . 32 6.2 Between Manager and Meter Reader: Control Functions . . . 33 6.3 Exception Conditions . . . . . . . . . . . . . . . . . . . 35 6.4 Standard Rule Sets . . . . . . . . . . . . . . . . . . . . 36

7 Security Considerations 36 7.1 Threat Analysis . . . . . . . . . . . . . . . . . . . . . 36 7.2 Countermeasures . . . . . . . . . . . . . . . . . . . . . 37

8 IANA Considerations 39 8.1 PME Opcodes . . . . . . . . . . . . . . . . . . . . . . . 39 8.2 RTFM Attributes . . . . . . . . . . . . . . . . . . . . . 39

9 APPENDICES 41 Appendix A: Network Characteris...

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