Last Call: <draft-ietf-ntp-packet-timestamps-07.txt> (Guidelines for Defining Packet Timestamps) to Informational RFC
The IESG <iesg-secretary@ietf.org> Thu, 06 February 2020 20:27 UTC
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Subject: Last Call: <draft-ietf-ntp-packet-timestamps-07.txt> (Guidelines for Defining Packet Timestamps) to Informational RFC
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Date: Thu, 06 Feb 2020 12:27:42 -0800
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The IESG has received a request from the Network Time Protocol WG (ntp) to consider the following document: - 'Guidelines for Defining Packet Timestamps' <draft-ietf-ntp-packet-timestamps-07.txt> as Informational RFC The IESG plans to make a decision in the next few weeks, and solicits final comments on this action. Please send substantive comments to the last-call@ietf.org mailing lists by 2020-02-20. Exceptionally, comments may be sent to iesg@ietf.org instead. In either case, please retain the beginning of the Subject line to allow automated sorting. Abstract Various network protocols make use of binary-encoded timestamps that are incorporated in the protocol packet format, referred to as packet timestamps for short. This document specifies guidelines for defining packet timestamp formats in networking protocols at various layers. It also presents three recommended timestamp formats. The target audience of this memo includes network protocol designers. It is expected that a new network protocol that requires a packet timestamp will, in most cases, use one of the recommended timestamp formats. If none of the recommended formats fits the protocol requirements, the new protocol specification should specify the format of the packet timestamp according to the guidelines in this document. The rationale behind defining a relatively small set of recommended formats is that it enables significant reuse; network protocols can typically reuse the timestamp format of the Network Time Protocol (NTP) or the Precision Time Protocol (PTP), allowing a straightforward integration with an NTP or a PTP-based timer. Moreover, since accurate timestamping mechanisms are often implemented in hardware, a new network protocol that reuses an existing timestamp format can be quickly deployed using existing hardware timestamping capabilities. The file can be obtained via https://datatracker.ietf.org/doc/draft-ietf-ntp-packet-timestamps/ IESG discussion can be tracked via https://datatracker.ietf.org/doc/draft-ietf-ntp-packet-timestamps/ballot/ No IPR declarations have been submitted directly on this I-D.