Requirements for IP Flow Information Export (IPFIX)
RFC 3917
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RFC - Informational
(October 2004; No errata)
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Last updated |
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2015-10-14
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IETF
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plain text
pdf
html
bibtex
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WG state
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(None)
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Document shepherd |
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No shepherd assigned
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| IESG |
IESG state |
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RFC 3917 (Informational)
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Consensus Boilerplate |
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Unknown
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Telechat date |
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Responsible AD |
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Bert Wijnen
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Send notices to |
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<plonka@doit.wisc.edu>
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Network Working Group J. Quittek
Request for Comments: 3917 NEC Europe Ltd.
Category: Informational T. Zseby
Fraunhofer FOKUS
B. Claise
Cisco Systems
S. Zander
Swinburne University
October 2004
Requirements for IP Flow Information Export (IPFIX)
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 (2004).
Abstract
This memo defines requirements for the export of measured IP flow
information out of routers, traffic measurement probes, and
middleboxes.
Table of Contents
1. Introduction. . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1. IP Traffic Flow. . . . . . . . . . . . . . . . . . . . 3
2.2. Observation Point. . . . . . . . . . . . . . . . . . . 4
2.3. Metering Process . . . . . . . . . . . . . . . . . . . 4
2.4. Flow Record. . . . . . . . . . . . . . . . . . . . . . 5
2.5. Exporting Process. . . . . . . . . . . . . . . . . . . 5
2.6. Collecting Process . . . . . . . . . . . . . . . . . . 5
3. Applications Requiring IP Flow Information Export . . . . . . 6
3.1. Usage-based Accounting . . . . . . . . . . . . . . . . 6
3.2. Traffic Profiling. . . . . . . . . . . . . . . . . . . 7
3.3. Traffic Engineering. . . . . . . . . . . . . . . . . . 7
3.4. Attack/Intrusion Detection . . . . . . . . . . . . . . 7
3.5. QoS Monitoring . . . . . . . . . . . . . . . . . . . . 8
4. Distinguishing Flows. . . . . . . . . . . . . . . . . . . . . 8
4.1. Encryption . . . . . . . . . . . . . . . . . . . . . . 9
4.2. Interfaces . . . . . . . . . . . . . . . . . . . . . . 9
Quittek, et al. Informational [Page 1]
RFC 3917 IPFIX Requirements October 2004
4.3. IP Header Fields . . . . . . . . . . . . . . . . . . . 9
4.4. Transport Header Fields. . . . . . . . . . . . . . . . 10
4.5. MPLS Label . . . . . . . . . . . . . . . . . . . . . . 10
4.6. DiffServ Code Point. . . . . . . . . . . . . . . . . . 10
5. Metering Process. . . . . . . . . . . . . . . . . . . . . . . 10
5.1. Reliability. . . . . . . . . . . . . . . . . . . . . . 10
5.2. Sampling . . . . . . . . . . . . . . . . . . . . . . . 11
5.3. Overload Behavior. . . . . . . . . . . . . . . . . . . 11
5.4. Timestamps . . . . . . . . . . . . . . . . . . . . . . 12
5.5. Time Synchronization . . . . . . . . . . . . . . . . . 12
5.6. Flow Expiration. . . . . . . . . . . . . . . . . . . . 13
5.7. Multicast Flows. . . . . . . . . . . . . . . . . . . . 13
5.8. Packet Fragmentation . . . . . . . . . . . . . . . . . 13
5.9. Ignore Port Copy . . . . . . . . . . . . . . . . . . . 13
6. Data Export . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.1. Information Model. . . . . . . . . . . . . . . . . . . 14
6.2. Data Model . . . . . . . . . . . . . . . . . . . . . . 16
6.3. Data Transfer. . . . . . . . . . . . . . . . . . . . . 16
6.3.1. Congestion Awareness. . . . . . . . . . . . . . 16
6.3.2. Reliability . . . . . . . . . . . . . . . . . . 17
6.3.3. Security. . . . . . . . . . . . . . . . . . . . 18
6.4. Push and Pull Mode Reporting . . . . . . . . . . . . . 18
6.5. Regular Reporting Interval . . . . . . . . . . . . . . 18
6.6. Notification on Specific Events. . . . . . . . . . . . 18
6.7. Anonymization. . . . . . . . . . . . . . . . . . . . . 18
7. Configuration . . . . . . . . . . . . . . . . . . . . . . . . 19
7.1. Configuration of the Metering Process. . . . . . . . . 19
7.2. Configuration of the Exporting Process . . . . . . . . 19
8. General Requirements. . . . . . . . . . . . . . . . . . . . . 20
8.1. Openness . . . . . . . . . . . . . . . . . . . . . . . 20
8.2. Scalability. . . . . . . . . . . . . . . . . . . . . . 20
8.3. Several Collecting Processes . . . . . . . . . . . . . 20
9. Special Device Considerations . . . . . . . . . . . . . . . . 20
10. Security Considerations . . . . . . . . . . . . . . . . . . . 23
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