Operation of the IP Flow Information Export (IPFIX) Protocol on IPFIX Mediators
RFC 7119
Internet Engineering Task Force (IETF) B. Claise
Request for Comments: 7119 Cisco Systems, Inc.
Category: Standards Track A. Kobayashi
ISSN: 2070-1721 NTT
B. Trammell
ETH Zurich
February 2014
Operation of the IP Flow Information Export (IPFIX) Protocol
on IPFIX Mediators
Abstract
This document specifies the operation of the IP Flow Information
Export (IPFIX) protocol specific to IPFIX Mediators, including
Template and Observation Point management, timing considerations, and
other Mediator-specific concerns.
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Further information on
Internet Standards is available in Section 2 of RFC 5741.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc7119.
Copyright Notice
Copyright (c) 2014 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
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described in the Simplified BSD License.
Claise, et al. Standards Track [Page 1]
RFC 7119 IPFIX MED-PROTO February 2014
Table of Contents
1. Introduction ....................................................2
1.1. IPFIX Documents Overview ...................................3
1.2. IPFIX Mediator Documents Overview ..........................4
1.3. Relationship with the IPFIX and PSAMP Protocols ............5
2. Terminology .....................................................5
3. Handling IPFIX Message Headers ..................................8
4. Template Management ............................................10
4.1. Passing Unmodified Templates through an IPFIX Mediator ....11
4.1.1. Template Mapping and Information Element Ordering ..15
4.2. Creating New Templates at an IPFIX Mediator ...............17
4.3. Handling Unknown Information Elements .....................17
5. Preserving Original Observation Point Information ..............17
5.1. originalExporterIPv4Address Information Element ...........20
5.2. originalExporterIPv6Address Information Element ...........20
6. Managing Observation Domain IDs ................................20
6.1. originalObservationDomainId Information Element ...........21
7. Timing Considerations ..........................................21
8. Transport Considerations .......................................23
9. Collecting Process Considerations ..............................23
10. Specific Reporting Requirements ...............................23
10.1. Intermediate Process Reliability Statistics
Options Template .........................................24
10.2. Flow Key Options Template ................................26
10.3. intermediateProcessId Information Element ................26
10.4. ignoredDataRecordTotalCount Information Element ..........27
11. Operations and Management Considerations ......................27
12. Security Considerations .......................................28
13. IANA Considerations ...........................................28
14. Acknowledgments ...............................................29
15. References ....................................................29
15.1. Normative References .....................................29
15.2. Informative References ...................................30
1. Introduction
The IPFIX architectural components in [RFC5470] consist of IPFIX
Devices and IPFIX Collectors communicating using the IPFIX protocol
[RFC7011], which specifies how to export IP Flow information. This
protocol is designed to export information about IP traffic Flows and
related measurement data, where a Flow is defined by a set of key
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