Internet Engineering Task Force (IETF) B. Claise
Request for Comments: 6526 P. Aitken
Category: Standards Track A. Johnson
ISSN: 2070-1721 Cisco Systems, Inc.
G. Muenz
TU Muenchen
March 2012
IP Flow Information Export (IPFIX) Per
Stream Control Transmission Protocol (SCTP) Stream
Abstract
This document specifies an extension to the specifications in RFC
5101, IP Flow Information Export (IPFIX), when using the Partial
Reliability extension of SCTP (PR-SCTP, Partial Reliability Stream
Control Transmission Protocol).
When implemented at both the Exporting Process and Collecting
Process, this method offers several advantages, such as the ability
to calculate Data Record losses for PR-SCTP per Template, immediate
export of Template Withdrawal Messages, immediate reuse of Template
IDs within an SCTP stream, reduced likelihood of Data Record loss,
and reduced demands on the Collecting Process. When implemented in
only the Collecting Process or Exporting Process, then normal IPFIX
behavior will be seen without all of the additional benefits.
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/rfc6526.
Claise, et al. Standards Track [Page 1]
RFC 6526 IPFIX Per SCTP Stream March 2012
Copyright Notice
Copyright (c) 2012 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
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.
Claise, et al. Standards Track [Page 2]
RFC 6526 IPFIX Per SCTP Stream March 2012
Table of Contents
1. Introduction ....................................................3
1.1. Relationship with IPFIX and PSAMP ..........................4
1.2. Applicability ..............................................5
1.3. Limitations ................................................5
2. Terminology .....................................................6
2.1. Conventions Used in This Document ..........................6
2.2. IPFIX Documents Overview ...................................6
2.3. PSAMP Documents Overview ...................................7
3. IPFIX Protocol Specifications: Limitations and Improvements .....7
3.1. Data Record Loss Calculated Per Template ...................7
3.1.1. IPFIX Protocol Specifications: Limitation ...........7
3.1.2. IPFIX Export Per SCTP Stream: Advantage .............8
3.2. Immediate Template Withdrawal and Reuse ....................8
3.2.1. IPFIX Protocol Specifications: Limitation ...........8
3.2.2. IPFIX Export Per SCTP Stream: Advantages ............9
3.3. Requirement for Data Set Buffering .........................9
3.3.1. IPFIX Protocol Specifications: Limitation ...........9
3.3.2. IPFIX Export Per SCTP Stream: Advantages ...........10
4. Specifications .................................................10
4.1. New Information Element ...................................10
4.2. Template Management .......................................11
4.3. SCTP ......................................................12
4.4. Template Withdrawal Message ...............................13
4.5. The Collecting Process's Side .............................14
4.5.1. SCTP ...............................................14
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