Re: [v6ops] draft-elkins-v6ops-ipv6-pdm-recommended-usage-00
Nalini Elkins <nalini.elkins@insidethestack.com> Thu, 01 August 2013 14:12 UTC
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Date: Thu, 01 Aug 2013 07:11:49 -0700
From: Nalini Elkins <nalini.elkins@insidethestack.com>
To: joel jaeggli <joelja@bogus.com>, IPv6 Ops WG <v6ops@ietf.org>
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Subject: Re: [v6ops] draft-elkins-v6ops-ipv6-pdm-recommended-usage-00
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Thanks for your comments, Joel. I want to take some time to research this further and talk to some more people. I will respond back on the list to this point in about 2 weeks. I want to talk this over with some of the folks actively working on NTP at IETF. Nalini Elkins Inside Products, Inc. (831) 659-8360 www.insidethestack.com ________________________________ From: joel jaeggli <joelja@bogus.com> To: Nalini Elkins <nalini.elkins@insidethestack.com>; IPv6 Ops WG <v6ops@ietf.org> Sent: Thursday, August 1, 2013 6:45 AM Subject: draft-elkins-v6ops-ipv6-pdm-recommended-usage-00 Since I ran into you in the hall and the dicussion turned to ntp... I'll try and be succinct, and as a non-expert in the time field this should be taken with a grain of salt. The generic utility of a high-resultion time-stamp is imho dodgey outside of situations where the clocks are deliberately syncronized and traceable to a common standard whether the protocol used for this is ntp or ieee 1588 (or since this is the ietf PTPV2) . While this is tractable for devices in a single span of control, the agruement that ntp might be suffcient to make this timstamp useful generically between two aribitratry devices where this functionality may need to be enabled is imho a hard one to assert. It is a set of operational practice and discipline moreso than the choice of technology that allows for a high-resolution timestamp to have sufficient precision to be useful between hosts. joel
- [v6ops] draft-elkins-v6ops-ipv6-pdm-recommended-u… joel jaeggli
- Re: [v6ops] draft-elkins-v6ops-ipv6-pdm-recommend… Nalini Elkins
- Re: [v6ops] draft-elkins-v6ops-ipv6-pdm-recommend… Brian Haberman
- Re: [v6ops] draft-elkins-v6ops-ipv6-pdm-recommend… Nalini Elkins
- Re: [v6ops] draft-elkins-v6ops-ipv6-pdm-recommend… Nalini Elkins
- Re: [v6ops] draft-elkins-v6ops-ipv6-pdm-recommend… joel jaeggli
- Re: [v6ops] draft-elkins-v6ops-ipv6-pdm-recommend… Nalini Elkins
- Re: [v6ops] draft-elkins-v6ops-ipv6-pdm-recommend… Ackermann, Michael
- Re: [v6ops] draft-elkins-v6ops-ipv6-pdm-recommend… Nalini Elkins
- Re: [v6ops] draft-elkins-v6ops-ipv6-pdm-recommend… MORTON JR., ALFRED C (AL)
- Re: [v6ops] draft-elkins-v6ops-ipv6-pdm-recommend… joel jaeggli
- Re: [v6ops] draft-elkins-v6ops-ipv6-pdm-recommend… Nalini Elkins
- Re: [v6ops] draft-elkins-v6ops-ipv6-pdm-recommend… Randy Bush
- Re: [v6ops] draft-elkins-v6ops-ipv6-pdm-recommend… joel jaeggli
- Re: [v6ops] draft-elkins-v6ops-ipv6-pdm-recommend… Nalini Elkins
- Re: [v6ops] draft-elkins-v6ops-ipv6-pdm-recommend… Randy Bush
- Re: [v6ops] draft-elkins-v6ops-ipv6-pdm-recommend… Nalini Elkins
- Re: [v6ops] draft-elkins-v6ops-ipv6-pdm-recommend… Bill Jouris
- Re: [v6ops] draft-elkins-v6ops-ipv6-pdm-recommend… Mark ZZZ Smith
- Re: [v6ops] draft-elkins-v6ops-ipv6-pdm-recommend… Nalini Elkins
- Re: [v6ops] draft-elkins-v6ops-ipv6-pdm-recommend… Ackermann, Michael