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Re: [alto] Suresh Krishnan's No Objection on draft-ietf-alto-cost-calendar-09: (with COMMENT)

Suresh Krishnan <Suresh@kaloom.com> Mon, 21 January 2019 19:37 UTC

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From: Suresh Krishnan <Suresh@kaloom.com>
To: "Randriamasy, Sabine (Nokia - FR/Paris-Saclay)" <sabine.randriamasy@nokia-bell-labs.com>
CC: The IESG <iesg@ietf.org>, "alto-chairs@ietf.org" <alto-chairs@ietf.org>, "Gurbani, Vijay (Nokia - US/Naperville)" <vijay.gurbani@nokia.onmicrosoft.com>, "draft-ietf-alto-cost-calendar@ietf.org" <draft-ietf-alto-cost-calendar@ietf.org>, "alto@ietf.org" <alto@ietf.org>
Thread-Topic: Suresh Krishnan's No Objection on draft-ietf-alto-cost-calendar-09: (with COMMENT)
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Subject: Re: [alto] Suresh Krishnan's No Objection on draft-ietf-alto-cost-calendar-09: (with COMMENT)
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Hi Sabine,

On Jan 21, 2019, at 11:13 AM, Randriamasy, Sabine (Nokia - FR/Paris-Saclay) <sabine.randriamasy@nokia-bell-labs.com<mailto:sabine.randriamasy@nokia-bell-labs.com>> wrote:

Hello Suresh,

Thanks for your comments,
Please see answers and one question on our side inline,

All the best for 2019,

Sabine

-----Original Message-----
From: Suresh Krishnan <suresh@kaloom.com<mailto:suresh@kaloom.com>>
Sent: Tuesday, December 04, 2018 8:09 AM
To: The IESG <iesg@ietf.org<mailto:iesg@ietf.org>>
Cc: draft-ietf-alto-cost-calendar@ietf.org<mailto:draft-ietf-alto-cost-calendar@ietf.org>; Gurbani, Vijay (Nokia - US/Naperville) <vijay.gurbani@nokia.onmicrosoft.com<mailto:vijay.gurbani@nokia.onmicrosoft.com>>; alto-chairs@ietf.org<mailto:alto-chairs@ietf.org>; Gurbani, Vijay (Nokia - US/Naperville) <vijay.gurbani@nokia.onmicrosoft.com<mailto:vijay.gurbani@nokia.onmicrosoft.com>>; alto@ietf.org<mailto:alto@ietf.org>
Subject: Suresh Krishnan's No Objection on draft-ietf-alto-cost-calendar-09: (with COMMENT)

* Section 4.2.3. and 4.2.4.

This document uses addresses from the allocatable global unicast IPv6 space in
2000::/3 in the examples. Please use addresses from the 2001:db8::/32 documentation prefix instead for the examples as per RFC6890.
[[SR]] Thanks, will be done as indicated by Mirja

Sounds good.


* Section 6

Any reason this document requires the use of TLS 1.2 instead of TLS 1.3?
[[SR]] No particular reason. In section, after quoting the RFC 7285 text, we may add the text below, with one question though:
do you see chances for TLS 1.2 to be deprecated in the near future?

I will let the SEC ADs answer this one, but my concern was more that there is no pointer to a newer version (1.3) that exists now.


-------
"RFC 8446 specifies TLS 1.3 and writes in its section 1: “While TLS 1.3 is not directly
compatible with previous versions, all versions of TLS incorporate a
versioning mechanism which allows clients and servers to
interoperably negotiate a common version if one is supported by both
peers".
So ALTO clients and servers MAY use newer versions (e.g., 1.3) of TLS as long as the negotiation process succeeds.
To ensure backward compatibility with RFC 7285, it is RECOMMENDED for both Calendar-aware Clients and Servers to both support at least TLS 1.2, until it gets deprecated.”
———

Sounds good to me.

Thanks
Suresh

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