From owen@delong.com Sun Dec 10 23:25:34 2023 Return-Path: X-Original-To: v6ops@ietfa.amsl.com Delivered-To: v6ops@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 6A94FC14F5FD for ; Sun, 10 Dec 2023 23:25:34 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.105 X-Spam-Level: X-Spam-Status: No, score=-2.105 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, HTML_MESSAGE=0.001, RCVD_IN_ZEN_BLOCKED_OPENDNS=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01, URIBL_BLOCKED=0.001, URIBL_DBL_BLOCKED_OPENDNS=0.001, URIBL_ZEN_BLOCKED_OPENDNS=0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=delong.com Received: from mail.ietf.org ([50.223.129.194]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Jf9E05iuB8hk for ; Sun, 10 Dec 2023 23:25:30 -0800 (PST) Received: from owen.delong.com (owen.delong.com [IPv6:2620:0:930::200:2]) by ietfa.amsl.com (Postfix) with ESMTP id 2F72CC045A50 for ; Sun, 10 Dec 2023 23:24:47 -0800 (PST) Received: from smtpclient.apple ([192.168.100.71]) (authenticated bits=0) by owen.delong.com (8.17.1/8.15.2) with ESMTPSA id 3BB7NOcC2471831 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 11 Dec 2023 07:24:44 GMT DKIM-Filter: OpenDKIM Filter v2.11.0 owen.delong.com 3BB7NOcC2471831 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=delong.com; s=mail; t=1702279484; bh=nK/NamvCT5XO/evK5Ss+gtdEjfaATYmXDtrOzYwm73M=; h=From:Subject:Date:In-Reply-To:Cc:To:References:From; b=Y4bO48VhuR19fF13GoxLMdmsssioqPeEJV5LoV3chcdMTpPeoyTY0svyzPD5rY208 JR6ko4jnNXg0fGu5grtf169HR0YBXui5d55DBhRAmUO2JMui0sX8fXgwhaVZtSWa5c jqTxYC/QQQD7KVk1yXeDvLbZd3c+2lMtw/kPZmQg= From: Owen DeLong Message-Id: <34D9409B-84EC-4729-8515-8C9253FE5C4C@delong.com> Content-Type: multipart/alternative; boundary="Apple-Mail=_9667BBF3-731A-425D-ACC3-0F8B68AEBEBA" Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3774.100.2.1.4\)) Date: Sun, 10 Dec 2023 23:24:33 -0800 In-Reply-To: Cc: Brian E Carpenter , Daryll Swer , list To: David Farmer References: X-Mailer: Apple Mail (2.3774.100.2.1.4) X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.6.4 (owen.delong.com [192.159.10.2]); Mon, 11 Dec 2023 07:24:44 +0000 (UTC) Archived-At: Subject: Re: [v6ops] How was a /16 of IPv6 asigned from ARIN to non large network? X-BeenThere: v6ops@ietf.org X-Mailman-Version: 2.1.39 Precedence: list List-Id: v6ops discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 11 Dec 2023 07:25:34 -0000 --Apple-Mail=_9667BBF3-731A-425D-ACC3-0F8B68AEBEBA Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 Actually, if you want to get super technical, more than 3 /22s. Owen > On Dec 10, 2023, at 12:11, David Farmer wrote: >=20 >=20 > On Sun, Dec 10, 2023 at 12:31 Brian E Carpenter = > = wrote: >> On 11-Dec-23 04:57, Daryll Swer wrote: >> > >> > Even if we aggregate to a /44 per site, /instead/ of /48 per site, = that's still an insane 268435456 number of sites! >>=20 >> My concern is that some variant of semantic usage of address bits = might be used to justify an excessive address assignment, and perhaps a = "considered harmful" style of BCP on this topic, with appropriate IANA = Considerations, is needed. >>=20 >> (I have no idea whether that would be relevant to this particular = case, of course.) >>=20 >> Brian >=20 > I would like to remind everyone, by policy ARIN makes nibble-aligned = allocations. Therefore to receive a /16, you don=E2=80=99t need to = justify a whole /16, you simply need to justify more than a /20. >=20 > Thanks. --Apple-Mail=_9667BBF3-731A-425D-ACC3-0F8B68AEBEBA Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8 Actually, if = you want to get super technical, more than 3 = /22s.

Owen


On Dec 10, 2023, at 12:11, David Farmer = <farmer@umn.edu> wrote:


On Sun, Dec = 10, 2023 at 12:31 Brian E Carpenter <brian.e.carpenter@gmail.com> wrote:
On = 11-Dec-23 04:57, Daryll Swer wrote:
>
> Even if we aggregate to a /44 per site, /instead/ of /48 per site, = that's still an insane 268435456 number of sites!

My concern is that some variant of semantic usage of address bits might = be used to justify an excessive address assignment, and perhaps a = "considered harmful" style of BCP on this topic, with appropriate IANA = Considerations, is needed.

(I have no idea whether that would be relevant to this particular case, = of course.)

     Brian



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