IP Flow Information Export (IPFIX) Mediation: Problem Statement
RFC 5982
Document | Type | RFC - Informational (August 2010; No errata) | |
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Authors | BenoƮt Claise , Atsushi Kobayashi | ||
Last updated | 2015-10-14 | ||
Stream | Internent Engineering Task Force (IETF) | ||
Formats | plain text html pdf htmlized (tools) htmlized bibtex | ||
Reviews | |||
Stream | WG state | (None) | |
Document shepherd | No shepherd assigned | ||
IESG | IESG state | RFC 5982 (Informational) | |
Action Holders |
(None)
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Consensus Boilerplate | Unknown | ||
Telechat date | |||
Responsible AD | Dan Romascanu | ||
Send notices to | (None) |
Internet Engineering Task Force (IETF) A. Kobayashi, Ed. Request for Comments: 5982 NTT PF Lab. Category: Informational B. Claise, Ed. ISSN: 2070-1721 Cisco Systems, Inc. August 2010 IP Flow Information Export (IPFIX) Mediation: Problem Statement Abstract Flow-based measurement is a popular method for various network monitoring usages. The sharing of flow-based information for monitoring applications having different requirements raises some open issues in terms of measurement system scalability, flow-based measurement flexibility, and export reliability that IP Flow Information Export (IPFIX) Mediation may help resolve. This document describes some problems related to flow-based measurement that network administrators have been facing, and then it describes IPFIX Mediation applicability examples along with the problems. Status of This Memo This document is not an Internet Standards Track specification; it is published for informational purposes. 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). Not all documents approved by the IESG are a candidate for any level of Internet Standard; see 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/rfc5982. Copyright Notice Copyright (c) 2010 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 Provisions Relating to IETF Documents (http://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must Kobayashi and Claise Informational [Page 1] RFC 5982 IPFIX Mediation: Problem Statement August 2010 include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License. Table of Contents 1. Introduction ....................................................3 2. Terminology and Definitions .....................................3 3. IPFIX/PSAMP Documents Overview ..................................5 3.1. IPFIX Documents Overview ...................................5 3.2. PSAMP Documents Overview ...................................5 4. Problem Statement ...............................................5 4.1. Coping with IP Traffic Growth ..............................6 4.2. Coping with Multipurpose Traffic Measurement ...............7 4.3. Coping with Heterogeneous Environments .....................7 4.4. Summary ....................................................7 5. Mediation Applicability Examples ................................8 5.1. Adjusting Flow Granularity .................................8 5.2. Collecting Infrastructure ..................................8 5.3. Correlation for Data Records ...............................9 5.4. Time Composition ...........................................9 5.5. Spatial Composition .......................................10 5.6. Data Record Anonymization .................................11 5.7. Data Retention ............................................11 5.8. IPFIX Export from a Branch Office .........................12 5.9. Distributing Data Record Types ............................13 5.10. Flow-Based Sampling and Selection ........................14 5.11. Interoperability between Legacy Protocols and IPFIX ......15 6. IPFIX Mediators' Implementation-Specific Problems ..............15 6.1. Loss of Original Exporter Information .....................15 6.2. Loss of Base Time Information .............................16 6.3. Transport Sessions Management .............................16 6.4. Loss of Options Template Information ......................16 6.5. Template ID Management ....................................17 6.6. Consideration for Network Topology ........................18 6.7. IPFIX Mediation Interpretation ............................18 6.8. Consideration for Aggregation .............................19 7. Summary and Conclusion .........................................20 8. Security Considerations ........................................20Show full document text