A New Internet-Draft is available from the on-line Internet-Drafts directories. Title : UDP Checksum Trailer in Timing Protocols Author(s) : Tal Mizrahi Filename : draft-mizrahi-tictoc-checksum-trailer-00.txt Pages : 10 Date : 2011-07-04 Various time synchronization and delay measurement protocols are transported over UDP, e.g., PTP, NTP, and OWAMP/TWAMP. These protocols use timestamped packets that often have to be modified by intermediate nodes in the network. In such cases the UDP checksum field must be updated to reflect these modifications. The IEEE 1588 standard suggests to append 2 octets to every protocol message, allowing intermediate nodes to reflect the checksum modification in the last 2 octets rather than in the UDP checksum field. This document generalizes this concept, and defines a UDP Checksum Trailer for NTP and for OWAMP/TWAMP. A URL for this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-mizrahi-tictoc-checksum-trailer-00.txt Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ This Internet-Draft can be retrieved at: ftp://ftp.ietf.org/internet-drafts/draft-mizrahi-tictoc-checksum-trailer-00.txt _______________________________________________ I-D-Announce mailing list I-D-Announce@ietf.org https://www.ietf.org/mailman/listinfo/i-d-announce Internet-Draft directories: http://www.ietf.org/shadow.html or ftp://ftp.ietf.org/ietf/1shadow-sites.txt
