IETF Logo Mail Archive

Re: [spring] CRH is back to the SPRING Use-Case - Re: Size of CR in CRH

Sander Steffann <sander@steffann.nl> Mon, 25 May 2020 13:11 UTC

Return-Path: <sander@steffann.nl>
X-Original-To: ipv6@ietfa.amsl.com
Delivered-To: ipv6@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 9CB7A3A0B6F; Mon, 25 May 2020 06:11:47 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.099
X-Spam-Level:
X-Spam-Status: No, score=-2.099 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, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=steffann.nl
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id QJik0DNdyZPz; Mon, 25 May 2020 06:11:43 -0700 (PDT)
Received: from mail.sintact.nl (mail.sintact.nl [83.247.10.6]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 6437E3A0B63; Mon, 25 May 2020 06:11:41 -0700 (PDT)
Received: from localhost (localhost [127.0.0.1]) by mail.sintact.nl (Postfix) with ESMTP id 900384C; Mon, 25 May 2020 15:11:40 +0200 (CEST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=steffann.nl; h= x-mailer:references:in-reply-to:date:date:subject:subject :mime-version:content-type:content-type:message-id:from:from :received:received; s=mail; t=1590412298; bh=JI/F025NHEu+AoDIYDw EtzbPNtyiEFOpVVjpSrtXYh0=; b=Taj5fFKBu3cHXEEgkijp7v9U/RzhEkV8Dmx FVmZTA6OCcbl4w4pBvPMYbY821LO1ro7Vi1apSi1pztpRih6LXdhUgwQ9XX7n/Uv ErGqRGMV5Z30KfYOa9J3FNe6G9QIgFlmGCeqIoe2pJATt2HoLkmfGXSHf3kfKjIv t+vlv9a0=
X-Virus-Scanned: Debian amavisd-new at mail.sintact.nl
Received: from mail.sintact.nl ([127.0.0.1]) by localhost (mail.sintact.nl [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id pmdeYkYl9uGy; Mon, 25 May 2020 15:11:38 +0200 (CEST)
Received: from [IPv6:2a02:a213:a300:ce80:1c8c:930:85c1:42] (unknown [IPv6:2a02:a213:a300:ce80:1c8c:930:85c1:42]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mail.sintact.nl (Postfix) with ESMTPSA id 1363149; Mon, 25 May 2020 15:11:37 +0200 (CEST)
X-Clacks-Overhead: GNU Terry Pratchett
From: Sander Steffann <sander@steffann.nl>
Message-Id: <E8FBDD04-B261-46D1-964F-AA548D386153@steffann.nl>
Content-Type: multipart/signed; boundary="Apple-Mail=_07EF2A2D-AD84-4BA7-9ECA-B70C089AA1F9"; protocol="application/pgp-signature"; micalg="pgp-sha256"
Mime-Version: 1.0 (Mac OS X Mail 13.4 \(3608.80.23.2.2\))
Subject: Re: [spring] CRH is back to the SPRING Use-Case - Re: Size of CR in CRH
Date: Mon, 25 May 2020 15:11:36 +0200
In-Reply-To: <BD04A44D-4F9F-404C-8F20-79D9E875AACD@employees.org>
Cc: Robert Raszuk <robert@raszuk.net>, Ron Bonica <rbonica=40juniper.net@dmarc.ietf.org>, "spring@ietf.org" <spring@ietf.org>, 6man <6man@ietf.org>, "rtg-ads@ietf.org" <rtg-ads@ietf.org>, "Ketan Talaulikar (ketant)" <ketant=40cisco.com@dmarc.ietf.org>
To: Ole Troan <otroan@employees.org>
References: <9CF68CCE-B584-4648-84DA-F2DBEA94622D@cisco.com> <C7C2E1C43D652C4E9E49FE7517C236CB02A2C1AE@dggeml529-mbx.china.huawei.com> <DM6PR05MB6348A22A123AFA7E7345087BAEB70@DM6PR05MB6348.namprd05.prod.outlook.com> <MW3PR11MB457041A967A6BBDA1C7EF0FDC1B70@MW3PR11MB4570.namprd11.prod.outlook.com> <93a31c7f-a102-da59-d9a8-2585cd8e3c65@gmail.com> <MW3PR11MB4570B197EE00C5385DAEE138C1B40@MW3PR11MB4570.namprd11.prod.outlook.com> <5F062FA6-9E2D-46BB-A3D6-257D374D8F92@gmail.com> <MW3PR11MB4570485EEDBADEF3B193BB82C1B40@MW3PR11MB4570.namprd11.prod.outlook.com> <ec63e90e-19fa-cd6c-eacb-4dee44815c99@joelhalpern.com> <MW3PR11MB4570FB2397D4B28A42626802C1B40@MW3PR11MB4570.namprd11.prod.outlook.com> <3bbb28c8-0106-ad63-abf9-c9dc4e428e0c@joelhalpern.com> <MW3PR11MB4570FD37ED32519C677F5E59C1B20@MW3PR11MB4570.namprd11.prod.outlook.com> <DM6PR05MB63486B842CD9DF5BE57FC1A5AEB30@DM6PR05MB6348.namprd05.prod.outlook.com> <CAOj+MMFT-JVWOhRoJ3UBsvmYrYvt96N7vkL3_v9Sq4PXzNtzAw@mail.gmail.com> <43FE1AA8-D2B8-4EBD-8775-69C53D663D25@steffann.nl> <BD04A44D-4F9F-404C-8F20-79D9E875AACD@employees.org>
X-Mailer: Apple Mail (2.3608.80.23.2.2)
Archived-At: <https://mailarchive.ietf.org/arch/msg/ipv6/o6l2S4auFi9gg6sS-pmhuBzjNAI>
X-BeenThere: ipv6@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: "IPv6 Maintenance Working Group \(6man\)" <ipv6.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/ipv6>, <mailto:ipv6-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/ipv6/>
List-Post: <mailto:ipv6@ietf.org>
List-Help: <mailto:ipv6-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/ipv6>, <mailto:ipv6-request@ietf.org?subject=subscribe>
X-List-Received-Date: Mon, 25 May 2020 13:11:48 -0000

Hi,

> That CRH is simple is a bit like claiming that MPLS is simple just because the header has few fields.
> I think you would be hard pressed to substantiate that any solution here is particularly simpler than any other. But you are welcome to try.

As a user I usually find:
Fewer fields -> fewer moving bits -> simpler to understand and debug

> Everyone claims to want a simple solution, funnily enough the end result is usually the opposite. The words "simple" and "source routing" are oxymorons.
> Let's leave the marketing out of this.

It is indeed all more complex than simple SRC->DST routing.

Cheers,
Sander

v2.23.0 | Report a Bug | By Email