Explicit Flow Measurements Techniques
draft-mdt-ippm-explicit-flow-measurements-00

Document Type Active Internet-Draft (individual)
Authors Mauro Cociglio  , Alexandre Ferrieux  , Giuseppe Fioccola  , Igor Lubashev  , Fabio Bulgarella  , Isabelle Hamchaoui  , Massimo Nilo  , Riccardo Sisto  , Dmitri Tikhonov 
Last updated 2020-11-03 (latest revision 2020-11-02)
Replaces draft-ferrieuxhamchaoui-tsvwg-lossbits, draft-cfb-ippm-spinbit-measurements
Stream (None)
Intended RFC status (None)
Formats plain text html xml pdf htmlized (tools) htmlized bibtex
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state I-D Exists
Telechat date
Responsible AD (None)
Send notices to (None)
IPPM                                                         M. Cociglio
Internet-Draft                                            Telecom Italia
Intended status: Informational                               A. Ferrieux
Expires: 6 May 2021                                          Orange Labs
                                                             G. Fioccola
                                                     Huawei Technologies
                                                             I. Lubashev
                                                     Akamai Technologies
                                                           F. Bulgarella
                                                          Telecom Italia
                                                            I. Hamchaoui
                                                             Orange Labs
                                                                 M. Nilo
                                                          Telecom Italia
                                                                R. Sisto
                                                   Politecnico di Torino
                                                             D. Tikhonov
                                                  LiteSpeed Technologies
                                                         2 November 2020

                 Explicit Flow Measurements Techniques
              draft-mdt-ippm-explicit-flow-measurements-00

Abstract

   This document describes protocol independent methods called Explicit
   Flow Measurement Techniques that employ few marking bits, inside the
   header of each packet, for loss and delay measurement.  The
   endpoints, marking the traffic, signal these metrics to intermediate
   observers allowing them to measure connection performance, and to
   locate the network segment where impairments happen.  Different
   alternatives are considered within this document.  These signaling
   methods apply to all protocols but they are especially valuable when
   applied to protocols that encrypt transport header and do not allow
   traditional methods for delay and loss detection.

Discussion Venues

   This note is to be removed before publishing as an RFC.

   Discussion of this document takes place on the IPPM Working Group
   mailing list (ippm@ietf.org), which is archived at
   https://mailarchive.ietf.org/arch/browse/ippm/.

   Source for this draft and an issue tracker can be found at
   https://github.com/igorlord/draft-xxx-ippm-flow-measurements.

Cociglio, et al.           Expires 6 May 2021                   [Page 1]
Internet-Draft             Delay and Loss bits             November 2020

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on 6 May 2021.

Copyright Notice

   Copyright (c) 2020 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 (https://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.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   4
   2.  Notational Conventions  . . . . . . . . . . . . . . . . . . .   5
   3.  Latency Bits  . . . . . . . . . . . . . . . . . . . . . . . .   5
     3.1.  Spin Bit  . . . . . . . . . . . . . . . . . . . . . . . .   5
     3.2.  Delay Bit . . . . . . . . . . . . . . . . . . . . . . . .   6
       3.2.1.  Generation Phase  . . . . . . . . . . . . . . . . . .   8
       3.2.2.  Reflection Phase  . . . . . . . . . . . . . . . . . .   9
       3.2.3.  Two Bits Delay Measurement: Spin Bit + Delay Bit  . .  10
       3.2.4.  Observer's Algorithm and Edge Rejection Interval  . .  12
   4.  Loss Bits . . . . . . . . . . . . . . . . . . . . . . . . . .  13
     4.1.  T Bit - Round Trip Loss Bit . . . . . . . . . . . . . . .  14
       4.1.1.  Round Trip Packet Loss Measurement  . . . . . . . . .  15
Show full document text