Export of Structured Data in IP Flow Information Export (IPFIX) (RFC6313)
Original Publication Date: 2011-Jul-01
Included in the Prior Art Database: 2011-Jul-21
Internet Society Requests For Comment (RFCs)
B. Claise: AUTHOR [+4]
While collecting the interface counters every five minutes has proven to be useful in the past, more and more granular information is required from network elements for a series of applications: performance assurance, capacity planning, security, billing, or simply monitoring. However, the amount of information has become so large that, when dealing with highly granular information such as Flow information, a push mechanism (as opposed to a pull mechanism, such as Simple Network Management Protocol (SNMP)) is the only solution for routers whose primary function is to route packets. Indeed, polling short-lived Flows via SNMP is not an option: high-end routers can support hundreds of thousands of Flows simultaneously. Furthermore, in order to reduce the export bandwidth requirements, the network elements have to integrate mediation functions to aggregate the collected information, both in space (typically, from different linecards or different Exporters) and in time.
Internet Engineering Task Force (IETF) B. Claise Request for Comments: 6313 G. Dhandapani Updates: 5102 P. Aitken Category: Standards Track S. Yates ISSN: 2070-1721 Cisco Systems, Inc. July 2011
Export of Structured Data in IP Flow Information Export (IPFIX)
This document specifies an extension to the IP Flow Information Export (IPFIX) protocol specification in RFC 5101 and the IPFIX information model specified in RFC 5102 to support hierarchical structured data and lists (sequences) of Information Elements in data records. This extension allows definition of complex data structures such as variable-length lists and specification of hierarchical containment relationships between Templates. Finally, the semantics are provided in order to express the relationship among multiple list elements in a structured data record.
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/rfc6313.
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RFC 6313 Export of Structured Data in IPFIX July 2011
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Table of Contents
1. Overview ........................................