Packet Sampling (PSAMP) Protocol Specifications
RFC 5476

Network Working Group                                     B. Claise, Ed.
Request for Comments: 5476                                    A. Johnson
Category: Standards Track                            Cisco Systems, Inc.
                                                              J. Quittek
                                                         NEC Europe Ltd.
                                                              March 2009

            Packet Sampling (PSAMP) Protocol Specifications

Status of This Memo

   This document specifies an Internet standards track protocol for the
   Internet community, and requests discussion and suggestions for
   improvements.  Please refer to the current edition of the "Internet
   Official Protocol Standards" (STD 1) for the standardization state
   and status of this protocol.  Distribution of this memo is unlimited.

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Claise, et al.              Standards Track                     [Page 1]
RFC 5476              PSAMP Protocol Specification            March 2009

Abstract

   This document specifies the export of packet information from a
   Packet SAMPling (PSAMP) Exporting Process to a PSAMP Collecting
   Process.  For export of packet information, the IP Flow Information
   eXport (IPFIX) protocol is used, as both the IPFIX and PSAMP
   architecture match very well, and the means provided by the IPFIX
   protocol are sufficient.  The document specifies in detail how the
   IPFIX protocol is used for PSAMP export of packet information.

Table of Contents

   1. Introduction ....................................................3
      1.1. Conventions Used in This Document ..........................3
   2. PSAMP Documents Overview ........................................4
   3. Terminology .....................................................4
      3.1. IPFIX Terminology ..........................................4
      3.2. PSAMP Terminology ..........................................5
           3.2.1. Packet Streams and Packet Content ...................5
           3.2.2. Selection Process ...................................6
           3.2.3. Reporting ...........................................7
           3.2.4. Metering Process ....................................8
           3.2.5. Exporting Process ...................................8
           3.2.6. PSAMP Device ........................................8
           3.2.7. Collector ...........................................8
           3.2.8. Selection Methods ...................................9
      3.3. IPFIX and PSAMP Terminology Comparison ....................11
           3.3.1. IPFIX and PSAMP Processes ..........................11
           3.3.2. Packet Report, Packet Interpretation, and
                  Data Record ........................................12
   4. Differences between PSAMP and IPFIX ............................12
      4.1. Architecture Point of View ................................12
      4.2. Protocol Point of View ....................................14
      4.3. Information Model Point of View ...........................14
   5. PSAMP Requirements versus the IPFIX Solution ...................14
      5.1. High-Level View of the Integration ........................15
   6. Using the IPFIX Protocol for PSAMP .............................16
      6.1. Selector ID ...............................................17
      6.2. The Selection Sequence ID .................................17
      6.3. The Exporting Process .....................................17
      6.4. Packet Report .............................................17
           6.4.1. Basic Packet Report ................................17