[ippm] I-D Action: draft-ietf-ippm-checksum-trailer-04.txt

internet-drafts@ietf.org Mon, 09 November 2015 06:43 UTC

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Date: Sun, 08 Nov 2015 22:43:59 -0800
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Subject: [ippm] I-D Action: draft-ietf-ippm-checksum-trailer-04.txt

A New Internet-Draft is available from the on-line Internet-Drafts directories.
 This draft is a work item of the IP Performance Metrics Working Group of the IETF.

        Title           : UDP Checksum Complement in OWAMP and TWAMP
        Author          : Tal Mizrahi
	Filename        : draft-ietf-ippm-checksum-trailer-04.txt
	Pages           : 12
	Date            : 2015-11-08

Abstract:
   The One-Way Active Measurement Protocol (OWAMP) and the Two-Way
   Active Measurement Protocol (TWAMP) are used for performance
   monitoring in IP networks. Delay measurement is performed in these
   protocols by using timestamped test packets. Some implementations use
   hardware-based timestamping engines that integrate the accurate
   transmission timestamp into every outgoing OWAMP/TWAMP test packet
   during transmission.  Since these packets are transported over UDP,
   the UDP checksum field is then updated to reflect this modification.
   This document proposes to use the last 2 octets of every test packet
   as a Checksum Complement, allowing timestamping engines to reflect
   the checksum modification in the last 2 octets rather than in the UDP
   checksum field. The behavior defined in this document is completely
   interoperable with existing OWAMP/TWAMP implementations.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-ippm-checksum-trailer/

There's also a htmlized version available at:
https://tools.ietf.org/html/draft-ietf-ippm-checksum-trailer-04

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-ippm-checksum-trailer-04


Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/

[ippm] I-D Action: draft-ietf-ippm-checksum-trail… internet-drafts