IETF Logo Mail Archive

Re: [core] [Dots] Large asynchronous notifications under DDoS: New BLOCK Option?

mohamed.boucadair@orange.com Thu, 09 April 2020 08:08 UTC

Return-Path: <mohamed.boucadair@orange.com>
X-Original-To: core@ietfa.amsl.com
Delivered-To: core@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 3DCFD3A0E37; Thu, 9 Apr 2020 01:08:22 -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, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, UNPARSEABLE_RELAY=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=orange.com
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 jaQILOS6WZ3L; Thu, 9 Apr 2020 01:08:16 -0700 (PDT)
Received: from relais-inet.orange.com (relais-inet.orange.com [80.12.70.36]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 8C1593A0E36; Thu, 9 Apr 2020 01:08:15 -0700 (PDT)
Received: from opfednr01.francetelecom.fr (unknown [xx.xx.xx.65]) by opfednr22.francetelecom.fr (ESMTP service) with ESMTP id 48yYg05qk2z10HT; Thu, 9 Apr 2020 10:08:12 +0200 (CEST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=orange.com; s=ORANGE001; t=1586419692; bh=NoXThhJRDDoxF1Bi4pfBYbF4x6DhaQ2r8x+oBrctDw4=; h=From:To:Subject:Date:Message-ID:Content-Type: Content-Transfer-Encoding:MIME-Version; b=VjbRAEg5KoQu9gmyEyweZbaIz1I3qZV+WVY5KP2bq796FQ+/Q9GTpvKKGQEzfMBC9 iXsIh+6TeO4BrpahOy9gA33OkPrNAF+phcFEhxpVEZl84lMJh7k5yaPpdCb7DbICoz oHItQNUj8F6nfFf1Z5eHZwkBw6g70Hc7nOE0yb5UslZQ5bp006MPCYgt0cgZHsMed+ qWVl/djovT+zeQe4Ve6HycRgCSD9YWkMaZkPd4yXFwvoyOOqcEJhgdlgauFBge9Vwq Qk6Pt00A+oIXF9Njhe2W1+SagOLPeBjX1HnyXSBHD0RSEoKvjqXLePvNujKp+5Xbbq tJ4/nENieQaIA==
Received: from Exchangemail-eme6.itn.ftgroup (unknown [xx.xx.13.89]) by opfednr01.francetelecom.fr (ESMTP service) with ESMTP id 48yYg057nvzDq7N; Thu, 9 Apr 2020 10:08:12 +0200 (CEST)
From: mohamed.boucadair@orange.com
To: Carsten Bormann <cabo@tzi.org>
CC: Jon Shallow <supjps-ietf@jpshallow.com>, "dots@ietf.org" <dots@ietf.org>, "core@ietf.org" <core@ietf.org>
Thread-Topic: [core] [Dots] Large asynchronous notifications under DDoS: New BLOCK Option?
Thread-Index: AQHWDkYDdcp/rcch6EqdRvW32HfIMg==
Date: Thu, 09 Apr 2020 08:08:12 +0000
Message-ID: <787AE7BB302AE849A7480A190F8B9330314921F4@OPEXCAUBMA2.corporate.adroot.infra.ftgroup>
References: <787AE7BB302AE849A7480A190F8B933031490173@OPEXCAUBMA2.corporate.adroot.infra.ftgroup> <2a255f3b-6614-f950-4ecc-15f170087c9f@gmx.net> <787AE7BB302AE849A7480A190F8B933031490894@OPEXCAUBMA2.corporate.adroot.infra.ftgroup> <019301d60d05$d87fcca0$897f65e0$@jpshallow.com> <a36c6114-d979-e04a-7806-3ad350208e4a@gmx.net> <566C58A5-0373-4D34-91F8-7B664423E373@tzi.org> <787AE7BB302AE849A7480A190F8B933031491200@OPEXCAUBMA2.corporate.adroot.infra.ftgroup> <023101d60d92$3642ebb0$a2c8c310$@jpshallow.com> <f105cf6a-da87-d8da-35db-07975f064a94@gmx.net> <787AE7BB302AE849A7480A190F8B933031491DA6@OPEXCAUBMA2.corporate.adroot.infra.ftgroup> <1A59D5BE-8826-45FE-B373-CF335831B3A4@tzi.org> <787AE7BB302AE849A7480A190F8B933031491E13@OPEXCAUBMA2.corporate.adroot.infra.ftgroup> <2bd7cba1-7ab7-f028-aa96-6d654c7ffed4@gmx.net> <787AE7BB302AE849A7480A190F8B93303149212D@OPEXCAUBMA2.corporate.adroot.infra.ftgroup> <90B0B5F4-1F31-4AE7-9754-6A653AEFB6B6@tzi.org> <787AE7BB302AE849A7480A190F8B9330314921C3@OPEXCAUBMA2.corporate.adroot.infra.ftgroup>
In-Reply-To: <787AE7BB302AE849A7480A190F8B9330314921C3@OPEXCAUBMA2.corporate.adroot.infra.ftgroup>
Accept-Language: fr-FR, en-US
Content-Language: fr-FR
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
x-originating-ip: [10.114.13.247]
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
MIME-Version: 1.0
Archived-At: <https://mailarchive.ietf.org/arch/msg/core/_6h2pFKRt1AWtOnnj3FGJGPAlu8>
Subject: Re: [core] [Dots] Large asynchronous notifications under DDoS: New BLOCK Option?
X-BeenThere: core@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" <core.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/core>, <mailto:core-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/core/>
List-Post: <mailto:core@ietf.org>
List-Help: <mailto:core-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/core>, <mailto:core-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 09 Apr 2020 08:08:22 -0000

Carsten, 

I forgot to mention for this additional "guard": it applies for the "full" notification (not it fragments).

Cheers,
Med

> 
> The probing-rate used in idle time may not be the same as the one
> using during at attack time. We do a value for each of them.
> 
> (3) in addition, we negotiate this additional "guard":
> 
>    DOTS agents MUST NOT send pre-or-ongoing-mitigation telemetry
>    messages to the same peer more frequently than once every
> 'telemetry-
>    notify-interval'

v2.23.0 | Report a Bug | By Email