[Gen-art] Gen-ART Telechat review of draft-ietf-ippm-rt-loss-03

Ben Campbell <ben@nostrum.com> Tue, 10 April 2012 21:54 UTC

Return-Path: <ben@nostrum.com>
X-Original-To: gen-art@ietfa.amsl.com
Delivered-To: gen-art@ietfa.amsl.com
Received: from localhost (localhost []) by ietfa.amsl.com (Postfix) with ESMTP id 994C611E80FA; Tue, 10 Apr 2012 14:54:02 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -102.368
X-Spam-Status: No, score=-102.368 tagged_above=-999 required=5 tests=[AWL=0.232, BAYES_00=-2.599, SPF_PASS=-0.001, USER_IN_WHITELIST=-100]
Received: from mail.ietf.org ([]) by localhost (ietfa.amsl.com []) (amavisd-new, port 10024) with ESMTP id i1OD7QrXcCRJ; Tue, 10 Apr 2012 14:54:02 -0700 (PDT)
Received: from nostrum.com (nostrum-pt.tunnel.tserv2.fmt.ipv6.he.net [IPv6:2001:470:1f03:267::2]) by ietfa.amsl.com (Postfix) with ESMTP id F066011E80EA; Tue, 10 Apr 2012 14:54:01 -0700 (PDT)
Received: from [] (cpe-76-187-92-156.tx.res.rr.com []) (authenticated bits=0) by nostrum.com (8.14.3/8.14.3) with ESMTP id q3ALrxTS096421 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NO); Tue, 10 Apr 2012 16:53:59 -0500 (CDT) (envelope-from ben@nostrum.com)
From: Ben Campbell <ben@nostrum.com>
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: quoted-printable
Date: Tue, 10 Apr 2012 16:53:58 -0500
Message-Id: <E2823518-321A-475F-A713-17F28D7828C0@nostrum.com>
To: draft-ietf-ippm-rt-loss.all@tools.ietf.org
Mime-Version: 1.0 (Apple Message framework v1257)
X-Mailer: Apple Mail (2.1257)
Received-SPF: pass (nostrum.com: is authenticated by a trusted mechanism)
Cc: "gen-art@ietf.org Review Team" <gen-art@ietf.org>, The IETF <ietf@ietf.org>
Subject: [Gen-art] Gen-ART Telechat review of draft-ietf-ippm-rt-loss-03
X-BeenThere: gen-art@ietf.org
X-Mailman-Version: 2.1.12
Precedence: list
List-Id: "GEN-ART: General Area Review Team" <gen-art.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/gen-art>, <mailto:gen-art-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/gen-art>
List-Post: <mailto:gen-art@ietf.org>
List-Help: <mailto:gen-art-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/gen-art>, <mailto:gen-art-request@ietf.org?subject=subscribe>
X-List-Received-Date: Tue, 10 Apr 2012 21:54:02 -0000

I am the assigned Gen-ART reviewer for this draft. For background on
Gen-ART, please see the FAQ at
< http://wiki.tools.ietf.org/area/gen/trac/wiki/GenArtfaq>gt;.

Please wait for direction from your document shepherd
or AD before posting a new version of the draft.

Document: draft-ietf-ippm-rt-loss-03
Reviewer: Ben Campbell
Review Date: 2012-04-10
IETF LC End Date: 2012-03-19
IESG Telechat date: 2012-04-12

Summary: This draft is effectively ready for publication as a proposed standard, but there are a few minor issues that may need attention first.

Major issues:


Minor issues:

-- section 5, last paragraph: " ... (or other process, the details of which MUST be specified if used)."

Specified how? Does 2330 state what level of spec is needed? I note this draft mentions the lack of an IANA registry...

-- section 7, paragraph 4: "Measurement implementations SHOULD address this possible outcome."

This seems to conflict with the MUST in the last paragraph of section 5.4.

-- section 9.1, last paragraph: "should establish bilateral or multi-lateral agreements"


Also, are such policies really up to the IETF to recommend?

-- section 9.2, first paragraph: "Passive measurement must restrict attention"


Nits/editorial comments:

-- section 3.2:

Is Tmax measured at src or dst? Does it effectively represent the "reasonable" time limit mentioned in TstampDst?

-- section 5.3:

This seems redundant with last paragraph of section 5.

-- section 7, paragraph 4: "As discussed above..."

A section number would be helpful.

-- section 8, 2nd paragraph: "Both unexpected test packet discards and
   the systematic and random errors and uncertainties MUST be recorded."

Sentence needs some commas to demarcate the two choices.