Cisco Systems Export of Application Information in IP Flow Information Export (IPFIX)
RFC 6759

Internet Engineering Task Force (IETF)                         B. Claise
Request for Comments: 6759                                     P. Aitken
Category: Informational                                     N. Ben-Dvora
ISSN: 2070-1721                                      Cisco Systems, Inc.
                                                           November 2012

           Cisco Systems Export of Application Information in
                   IP Flow Information Export (IPFIX)

Abstract

   This document specifies a Cisco Systems extension to the IPFIX
   information model specified in RFC 5102 to export application
   information.

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/rfc6759.

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.                Informational                     [Page 1]
RFC 6759              Export of App. Info. in IPFIX        November 2012

Table of Contents

   1. Introduction ....................................................3
      1.1. Application Information Use Cases ..........................5
      1.2. Conventions Used in This Document ..........................5
   2. IPFIX Documents Overview ........................................5
   3. Terminology .....................................................6
      3.1. New Terminology ............................................6
   4. applicationId Information Element Specification .................6
      4.1. Existing Classification Engine IDs .........................7
      4.2. Selector ID Length per Classification ID ..................11
      4.3. Application Name Options Template Record ..................12
      4.4. Resolving IANA L4 Port Discrepancies ......................13
   5. Grouping Applications with Attributes ..........................13
      5.1. Options Template Record for Attribute Values ..............15
   6. Application ID Examples ........................................15
      6.1. Example 1: Layer 2 Protocol ...............................15
      6.2. Example 2: Standardized IANA Layer 3 Protocol .............16
      6.3. Example 3: Proprietary Layer 3 Protocol ...................17
      6.4. Example 4: Standardized IANA Layer 4 Port .................18
      6.5. Example 5: Layer 7 Application ............................19
      6.6. Example 6: Layer 7 Application with Private
           Enterprise Number (PEN) ...................................21
      6.7. Example: Port Obfuscation .................................22
      6.8. Example: Application Name Mapping Options Template ........23
      6.9. Example: Attributes Values Options Template Record ........24
   7. IANA Considerations ............................................25
      7.1. New Information Elements ..................................25
           7.1.1. applicationDescription .............................25
           7.1.2. applicationId ......................................26
           7.1.3. applicationName ....................................26
           7.1.4. classificationEngineId .............................26
           7.1.5. applicationCategoryName ............................29
           7.1.6. applicationSubCategoryName .........................29
           7.1.7. applicationGroupName ...............................29
           7.1.8. p2pTechnology ......................................29
           7.1.9. tunnelTechnology ...................................30
           7.1.10. encryptedTechnology ...............................30
      7.2. Classification Engine ID Registry .........................30