IETF Logo Mail Archive

Re: Header Insertion and TI-FA

Robert Raszuk <robert@raszuk.net> Mon, 11 May 2020 14:40 UTC

Return-Path: <robert@raszuk.net>
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 A69F63A0BC2 for <ipv6@ietfa.amsl.com>; Mon, 11 May 2020 07:40:12 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.098
X-Spam-Level:
X-Spam-Status: No, score=-2.098 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, 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 (2048-bit key) header.d=raszuk.net
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 5u7E58Mm7kdf for <ipv6@ietfa.amsl.com>; Mon, 11 May 2020 07:40:07 -0700 (PDT)
Received: from mail-ed1-x532.google.com (mail-ed1-x532.google.com [IPv6:2a00:1450:4864:20::532]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 740E13A0B91 for <6man@ietf.org>; Mon, 11 May 2020 07:39:08 -0700 (PDT)
Received: by mail-ed1-x532.google.com with SMTP id h15so5852263edv.2 for <6man@ietf.org>; Mon, 11 May 2020 07:39:07 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=raszuk.net; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=5aAasdaEURIXidxq4AW3LUmSbOEiDbG6Z+YN8mLTHV8=; b=UDVnchDxnjeyIEROPb9QxOGkaXHwh5FQvbpenb59sAxbuhSHIQe124GRieU0ls3ToX X5mtCi/vDzFkI2V78KcEmgFqaHXXGqQAVCai8jvAJWeOQwchrLc+OnAEbqVyuOBTw79S TDYm2JTmrKJ0KrkBpm5Lf3wOprbayaBnSxN9zQSl6D7BXn9vCD+ThyIFVziNZVpjdiQy +Zr0wvyfAC0UcTQ4vExXeg+QS0rA2h98vmrxfXLBExQ+0lIFTeiBHRq58zKWtOWWrPh6 PxcSiX1YA8fBGMH851mfmQzZXxvJbcMsk7/Rd3wI1+hMLUvk5njq+DUpoz2I8cGvzwLh 1tug==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=5aAasdaEURIXidxq4AW3LUmSbOEiDbG6Z+YN8mLTHV8=; b=I6y5CoPrYSNoqMUBBU9TG/Gd71uEAD8WdEJh0aaeNvNBkJpKCuHbtfyRldZW5AQHwE BWNZAOiLk/nJIw8WMXI8iOCy2rJg0IGC+Px6Fyg2DexT1XzKYdDf1i4L2vMXyX+bssmI bYLTHURosCpXlvrmdL+vcQf202G+0S02n7pigJWDlWUlQpQ1D5Dx1YCtX7BCOyhA0ROx zHrCDfPlA7wRAzh8lyoxTgrofqfVaAetXN19wL9LiqbnpC83tc2/mKC085rEuRIqWbB0 u3DA2c0RS/ecS9TDHxabvWk09USQFB7g8WToE0i6EAj/2fjQRMeeBZtxad2Mf7/3bx3o wx7A==
X-Gm-Message-State: AGi0PuY+LHeysjb0yANzotMRyP/ntFcTvJYimaxvqbZGbb0Y8waG3tLK eVAMSX+2cE2x3f/vMjcFFmN6dEWYh6qLoBwCGEyN5w==
X-Google-Smtp-Source: APiQypIqwSgR0cgd1PQGMPCPOOOvvb3hxIL9p+KRmwQYkCOzzuOiSfHce+7DUBfJigiOJUy1S7giFfZ2xhXf6fyZX0c=
X-Received: by 2002:a05:6402:b4e:: with SMTP id bx14mr14231793edb.41.1589207945953; Mon, 11 May 2020 07:39:05 -0700 (PDT)
MIME-Version: 1.0
References: <DM6PR05MB6348FA1FC00258ACE4FDE444AEA10@DM6PR05MB6348.namprd05.prod.outlook.com> <CABNhwV3-dMPg6SAAEz+uWre-rj6j5=1JgyyQyKyz_qn7f7mJwQ@mail.gmail.com> <DM6PR05MB634848D379A428372C166DD4AEA10@DM6PR05MB6348.namprd05.prod.outlook.com>
In-Reply-To: <DM6PR05MB634848D379A428372C166DD4AEA10@DM6PR05MB6348.namprd05.prod.outlook.com>
From: Robert Raszuk <robert@raszuk.net>
Date: Mon, 11 May 2020 16:38:55 +0200
Message-ID: <CAOj+MMEBVA+yK9cFXSe=GVUeH01ipi++nwCRQU_nQCxsKhyvRg@mail.gmail.com>
Subject: Re: Header Insertion and TI-FA
To: Ron Bonica <rbonica=40juniper.net@dmarc.ietf.org>
Cc: Gyan Mishra <hayabusagsm@gmail.com>, 6man <6man@ietf.org>
Content-Type: multipart/alternative; boundary="00000000000017dc5705a5604fcf"
Archived-At: <https://mailarchive.ietf.org/arch/msg/ipv6/aa02eVZV9jAGtQQMwxj8e6fbuWY>
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, 11 May 2020 14:40:14 -0000

Hi Ron,

> normalizing header insertion for the special case where the PLR is a
segment endpoint

When an operator is serious about good data plane protection with TI-LFA
all nodes in the network will be enabled for SR. The less overhead required
for the protection the better. You may just not have a room for adding
additional 40 bytes to each packet at each potential PLR without
fragmentation.

Regarding all of your other TI-LFA related questions - I am sure Krzysztof
will be happy to answer them for you internally :)  After all this is what
your public demo was all about ....

Best,
Robert,

v2.23.0 | Report a Bug | By Email