IETF Logo Mail Archive

Re: [bess] rfc9251

Alexander Vainshtein <Alexander.Vainshtein@rbbn.com> Sun, 17 March 2024 12:06 UTC

Return-Path: <alexander.vainshtein@rbbn.com>
X-Original-To: bess@ietfa.amsl.com
Delivered-To: bess@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 687CAC14F680 for <bess@ietfa.amsl.com>; Sun, 17 Mar 2024 05:06:16 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -7.103
X-Spam-Level:
X-Spam-Status: No, score=-7.103 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_DNSWL_HI=-5, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=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=rbbn.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 4OMN2bMVNtYr for <bess@ietfa.amsl.com>; Sun, 17 Mar 2024 05:06:12 -0700 (PDT)
Received: from usb-smtp-delivery-110.mimecast.com (usb-smtp-delivery-110.mimecast.com [170.10.153.110]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id E3863C14F5F5 for <bess@ietf.org>; Sun, 17 Mar 2024 05:06:11 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rbbn.com; s=mimecast20230413; t=1710677170; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=BJ/TxDsjJT16yfSp5Os80IOQ2Q3NJMHkR2HtwO3oNX0=; b=PmUZ9vL3hTanJwWbY9qSQrX9noXbesv7pr+Mc99Eb7QHyKl35iM0yBJdtYVePV1BzylALF nuLoEZFcGyTWD83BYMDlltYJS30jI7kZiCeSS7sZ4QpPVAYW4kI706rn7gMXBtgRDQLs+k JhhykQUbyaPeH/bwy28wxyTIB/vIJHE=
Received: from NAM11-DM6-obe.outbound.protection.outlook.com (mail-dm6nam11lp2168.outbound.protection.outlook.com [104.47.57.168]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id usb-mta-30-V5B6FHXFMZqqKg8fZm8kSw-1; Sun, 17 Mar 2024 05:06:05 -0700
X-MC-Unique: V5B6FHXFMZqqKg8fZm8kSw-1
Received: from PH0PR03MB6300.namprd03.prod.outlook.com (2603:10b6:510:e2::5) by MW4PR03MB6507.namprd03.prod.outlook.com (2603:10b6:303:126::20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7386.25; Sun, 17 Mar 2024 12:06:01 +0000
Received: from PH0PR03MB6300.namprd03.prod.outlook.com ([fe80::37e8:7f43:4659:358d]) by PH0PR03MB6300.namprd03.prod.outlook.com ([fe80::37e8:7f43:4659:358d%6]) with mapi id 15.20.7386.023; Sun, 17 Mar 2024 12:06:01 +0000
From: Alexander Vainshtein <Alexander.Vainshtein@rbbn.com>
To: "Ali Sajassi (sajassi)" <sajassi@cisco.com>, "Samir Thoria (sthoria)" <sthoria@cisco.com>, John E Drake <jdrake=40juniper.net@dmarc.ietf.org>, "mankamis@cisco.com" <mankamis@cisco.com>, "wlin@juniper.net" <wlin@juniper.net>
CC: "bess@ietf.org" <bess@ietf.org>
Thread-Topic: rfc9251
Thread-Index: Adp4Ycx/cmvVRvg6T5iV7tJ/zM3atgAATjcg
Date: Sun, 17 Mar 2024 12:06:01 +0000
Message-ID: <PH0PR03MB6300A1E344A0448B03D69B69F62E2@PH0PR03MB6300.namprd03.prod.outlook.com>
References: <PH0PR03MB63001B607224B0AB6EDBAC61F62E2@PH0PR03MB6300.namprd03.prod.outlook.com>
In-Reply-To: <PH0PR03MB63001B607224B0AB6EDBAC61F62E2@PH0PR03MB6300.namprd03.prod.outlook.com>
Accept-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
x-ms-publictraffictype: Email
x-ms-traffictypediagnostic: PH0PR03MB6300:EE_|MW4PR03MB6507:EE_
x-ms-office365-filtering-correlation-id: 691838ee-1848-4e4c-f299-08dc467a9d01
x-ms-exchange-senderadcheck: 1
x-ms-exchange-antispam-relay: 0
x-microsoft-antispam: BCL:0
x-microsoft-antispam-message-info: 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
x-forefront-antispam-report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:PH0PR03MB6300.namprd03.prod.outlook.com; PTR:; CAT:NONE; SFS:(13230031)(376005)(1800799015)(366007)(38070700009); DIR:OUT; SFP:1102
x-ms-exchange-antispam-messagedata-chunkcount: 1
x-ms-exchange-antispam-messagedata-0: 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
MIME-Version: 1.0
X-OriginatorOrg: rbbn.com
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-AuthSource: PH0PR03MB6300.namprd03.prod.outlook.com
X-MS-Exchange-CrossTenant-Network-Message-Id: 691838ee-1848-4e4c-f299-08dc467a9d01
X-MS-Exchange-CrossTenant-originalarrivaltime: 17 Mar 2024 12:06:01.3272 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: 29a671dc-ed7e-4a54-b1e5-8da1eb495dc3
X-MS-Exchange-CrossTenant-mailboxtype: HOSTED
X-MS-Exchange-CrossTenant-userprincipalname: SZ5MIiMvpkp/m4IAzYZyJKfRnrbs4dtp1xK9wOeluXt4BtXiqv/L3/CXkfGeaIuIYh0vswCZMYNCmawEibaDVw==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW4PR03MB6507
X-Mimecast-Spam-Score: 0
X-Mimecast-Originator: rbbn.com
Content-Language: en-US
Content-Type: multipart/alternative; boundary="_000_PH0PR03MB6300A1E344A0448B03D69B69F62E2PH0PR03MB6300namp_"
Archived-At: <https://mailarchive.ietf.org/arch/msg/bess/ib_hAXVjOyoEuoeZ67Uq15f6KqQ>
Subject: Re: [bess] rfc9251
X-BeenThere: bess@ietf.org
X-Mailman-Version: 2.1.39
Precedence: list
List-Id: BGP-Enabled ServiceS working group discussion list <bess.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/bess>, <mailto:bess-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/bess/>
List-Post: <mailto:bess@ietf.org>
List-Help: <mailto:bess-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/bess>, <mailto:bess-request@ietf.org?subject=subscribe>
X-List-Received-Date: Sun, 17 Mar 2024 12:06:16 -0000

Hi all,
Re-sending to the authors since the address : rfc9251@ietf.org<mailto:rfc9251@ietf.org> is invalid.

Regards,
Sasha

From: Alexander Vainshtein
Sent: Sunday, March 17, 2024 2:01 PM
To: rfc9251@ietf.org
Cc: bess@ietf.org
Subject: rfc9251

Hi all,
I have a question regarding expected DP behavior in conjunction with RFC 9521: Are the PEs that support this RFC expected to decrement TTL in IP headers of multicast IP packets they forward?

This question is equally applicable to the "last mile" PEs that have received IGMP/MLD Joins and advertised them as SMET routes, and to the "first mile" PEs that receive and install these SMET routes.

The context for this question is my understanding that multicast IP traffic that is forwarded based on IMET route (e.g., to the PEs that have not advertised ability to advertise SMET routes)   does not undergo TTL decrement.

I have failed to find an answer to my question in the text of RFC 9251.

Your timely feedback would be highly appreciated.

Regards, and lots of thanks in advance,
Sasha

Disclaimer

This e-mail together with any attachments may contain information of Ribbon Communications Inc. and its Affiliates that is confidential and/or proprietary for the sole use of the intended recipient. Any review, disclosure, reliance or distribution by others or forwarding without express permission is strictly prohibited. If you are not the intended recipient, please notify the sender immediately and then delete all copies, including any attachments.

v2.23.0 | Report a Bug | By Email