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A Framework for Packet Selection and Reporting
RFC 5474

Document type: RFC - Informational (March 2009)
Document stream: IETF
Last updated: 2013-03-02
Other versions: plain text, pdf, html

IETF State: (None)
Consensus: Unknown
Document shepherd: No shepherd assigned

IESG State: RFC 5474 (Informational)
Responsible AD: Dan Romascanu
Send notices to: quittek@netlab.nec.de

Network Working Group                                   N. Duffield, Ed.
Request for Comments: 5474                          AT&T Labs - Research
Category: Informational                                         D. Chiou
                                                     University of Texas
                                                               B. Claise
                                                     Cisco Systems, Inc.
                                                            A. Greenberg
                                                               Microsoft
                                                         M. Grossglauser
                                                            EPFL & Nokia
                                                              J. Rexford
                                                    Princeton University
                                                              March 2009

            A Framework for Packet Selection and Reporting

Status of This Memo

   This memo provides information for the Internet community.  It does
   not specify an Internet standard of any kind.  Distribution of this
   memo is unlimited.

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   Copyright (c) 2009 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

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Duffield, et al.             Informational                      [Page 1]
RFC 5474             Packet Selection and Reporting           March 2009

Abstract

   This document specifies a framework for the PSAMP (Packet SAMPling)
   protocol.  The functions of this protocol are to select packets from
   a stream according to a set of standardized Selectors, to form a
   stream of reports on the selected packets, and to export the reports
   to a Collector.  This framework details the components of this
   architecture, then describes some generic requirements, motivated by
   the dual aims of ubiquitous deployment and utility of the reports for
   applications.  Detailed requirements for selection, reporting, and
   exporting are described, along with configuration requirements of the
   PSAMP functions.

Table of Contents

   1. Introduction ....................................................4
   2. PSAMP Documents Overview ........................................4
   3. Elements, Terminology, and High-Level Architecture ..............5
      3.1. High-Level Description of the PSAMP Architecture ...........5
      3.2. Observation Points, Packet Streams, and Packet Content .....5
      3.3. Selection Process ..........................................6
      3.4. Reporting ..................................................7
      3.5. Metering Process ...........................................8
      3.6. Exporting Process ..........................................8
      3.7. PSAMP Device ...............................................9
      3.8. Collector ..................................................9
      3.9. Possible Configurations ....................................9
   4. Generic Requirements for PSAMP .................................11
      4.1. Generic Selection Process Requirements ....................11
      4.2. Generic Reporting Requirements ............................12
      4.3. Generic Exporting Process Requirements ....................12
      4.4. Generic Configuration Requirements ........................13
   5. Packet Selection ...............................................13
      5.1. Two Types of Selectors ....................................13
      5.2. PSAMP Packet Selectors ....................................14
      5.3. Selection Fraction Terminology ............................17
      5.4. Input Sequence Numbers for Primitive Selectors ............18
      5.5. Composite Selectors .......................................19

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