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Measurement of Round-Trip Time and Fractional Loss Using Session Traversal Utilities for NAT (STUN) (RFC7982) Disclosure Number: IPCOM000247640D
Original Publication Date: 2016-Sep-01
Included in the Prior Art Database: 2016-Sep-23
Document File: 20 page(s) / 20K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

P. Martinsen: AUTHOR [+3]


This document extends STUN [RFC5389] to make it possible to correlate STUN responses to specific requests when retransmits occur. This assists the client in determining path characteristics like round- trip time (RTT) and fractional packet loss.

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Internet Engineering Task Force (IETF)                      P. Martinsen Request for Comments: 7982                                      T. Reddy Category: Standards Track                                          Cisco ISSN: 2070-1721                                                  D. Wing

                                                                V. Singh                                                                                                              September 2016

            Measurement of Round-Trip Time and Fractional Loss             Using Session Traversal Utilities for NAT (STUN)


   A host with multiple interfaces needs to choose the best interface    for communication.  Oftentimes, this decision is based on a static    configuration and does not consider the path characteristics, which    may affect the user experience.

   This document describes a mechanism for an endpoint to measure the    path characteristics fractional loss and RTT using Session Traversal    Utilities for NAT (STUN) messages.

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 7841.

   Information about the current status of this document, any errata,    and how to provide feedback on it may be obtained at

 Martinsen, et al.            Standards Track                    [Page 1]
 RFC 7982                 RTT and Fractional Loss          September 2016

 Copyright Notice

   Copyright (c) 2016 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    ( 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.

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