Internet Engineering Task Force (IETF) A. Morton
Request for Comments: 5938 AT&T Labs
Updates: 5357 M. Chiba
Category: Standards Track Cisco Systems
ISSN: 2070-1721 August 2010
Individual Session Control Feature
for the Two-Way Active Measurement Protocol (TWAMP)
Abstract
The IETF has completed its work on the core specification of TWAMP --
the Two-Way Active Measurement Protocol. This memo describes an
OPTIONAL feature for TWAMP, that gives the controlling host the
ability to start and stop one or more individual test sessions using
Session Identifiers. The base capability of the TWAMP protocol
requires all test sessions that were previously requested and
accepted to start and stop at the same time.
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 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/rfc5938.
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Morton & Chiba Standards Track [Page 1]RFC 5938 TWAMP Session Control August 2010
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1. Requirements Language . . . . . . . . . . . . . . . . . . 4
2. Purpose and Scope . . . . . . . . . . . . . . . . . . . . . . 4
3. TWAMP Control Extensions . . . . . . . . . . . . . . . . . . . 4
3.1. Connection Setup with Individual Session Control . . . . . 5
3.2. Start-N-Sessions Command with Individual Session
Control . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.3. Start-N-Ack Command with Individual Session Control . . . 7
3.4. Stop-N-Sessions Command with Individual Session Control . 9
3.5. Stop-N-Ack Command with Individual Session Control . . . . 10
3.6. SERVWAIT Timeout Operation . . . . . . . . . . . . . . . . 12
3.7. Additional Considerations . . . . . . . . . . . . . . . . 12
4. TWAMP Test with Individual Session Control . . . . . . . . . . 13
4.1. Sender Behavior . . . . . . . . . . . . . . . . . . . . . 13
4.2. Reflector Behavior . . . . . . . . . . . . . . . . . . . . 13
5. Security Considerations . . . . . . . . . . . . . . . . . . . 14
6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 14
6.1. Registry Specification . . . . . . . . . . . . . . . . . . 14
6.2. Registry Management . . . . . . . . . . . . . . . . . . . 14
6.3. Experimental Numbers . . . . . . . . . . . . . . . . . . . 15
6.4. Registry Contents . . . . . . . . . . . . . . . . . . . . 15
7. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 16
8. References . . . . . . . . . . . . . . . . . . . . . . . . . . 16
8.1. Normative References . . . . . . . . . . . . . . . . . . . 16
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