[spring] some questions about draft-li-spring-tunnel-segment-02

Linda Dunbar <linda.dunbar@futurewei.com> Thu, 22 April 2021 03:54 UTC

Return-Path: <linda.dunbar@futurewei.com>
X-Original-To: spring@ietfa.amsl.com
Delivered-To: spring@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id D63353A14FF; Wed, 21 Apr 2021 20:54:23 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.088
X-Spam-Level:
X-Spam-Status: No, score=-2.088 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_BLOCKED=0.001, RCVD_IN_MSPIKE_H2=-0.001, T_SPF_PERMERROR=0.01, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=futurewei.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 RsmkmXiY84KB; Wed, 21 Apr 2021 20:54:17 -0700 (PDT)
Received: from NAM11-BN8-obe.outbound.protection.outlook.com (mail-bn8nam11on2139.outbound.protection.outlook.com [40.107.236.139]) (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 702F73A14FC; Wed, 21 Apr 2021 20:54:14 -0700 (PDT)
ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=SSpzSttd+I2NeQ2QKAPqftDgINNsV2X/xle3Hn4O4c1FbHSaY7PLWk8HdUgV2i4mo5ufVhXkO88/uoHaG5HwRRcFAPHFXjk80oYr/LOypORagnjds5t+zedLV5WgoRrbN4w6QQqlXQ6h9bI+QII5NvxaGaZERAFZ59O5sLFX5ieKRtLWRjKvI4ePleNpZc+vb3HsbmM4DMYEmXDt6X+xRjlXUGP8ytXpfvOfbXUzBWTGJ/3kMZ0ti1ftPv5svxIkzBnI29ba7g6nhQnTm8122emJfhG9jQ4ErduS5UW53rnCu7b9k6Y7wL59j1jddd7pfSa5JNv2WsoB0wneBOj8kQ==
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=jTZiP4Som76TWAUVdFWnGBRptHLvWPUnNXZu8kgenM8=; b=HdWFyfkRjp9vls/JtGqO0XAnaALg9aiO5PKxGvZmRpQ9416IJvtj3W7d6t5y99YlI76vubKcFPxjkvBoCtL9WlQ/lfk0f6V2N/ZZ68PqJ93fm/NP2V73vlKDubYoNMowRJvLRMsvvRQ3t/nUiuNGNJLQirOquM/9CBb8wXlDSzpyOjndFPnUnVC+qymFHcZmJDyOEMdKHbUG2BmXdHgzvkA9AYM6B5xjBtf8ZxpaNZj2HB1AssES/KlTzp5N9ivV3lm2cX+j27fqXDB/oCTWeaBMskQlDcD109CvqlglHs6lhYQvWou4Xd8UBMyYcy4jwcCpuNY60nvZNsX4rIcklw==
ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=futurewei.com; dmarc=pass action=none header.from=futurewei.com; dkim=pass header.d=futurewei.com; arc=none
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=Futurewei.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=jTZiP4Som76TWAUVdFWnGBRptHLvWPUnNXZu8kgenM8=; b=hT7GGZMFNTRn6M272OR/n0K0ho1k44+EygyS1b2/bPMwOtL0+22o/blRU/qKY3YCpyaIMz8bMLaGFtaHINtW+eXwKBWPGbZFfuhLRnCscyRUOHvRpLUSgj9YCXmoEN7D8ofVe+Rdagqw/yKAilIPgEs5NKVJHwzVPYwRzExUOTI=
Received: from SN6PR13MB2334.namprd13.prod.outlook.com (2603:10b6:805:55::16) by SN6PR13MB2333.namprd13.prod.outlook.com (2603:10b6:805:57::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4065.8; Thu, 22 Apr 2021 03:54:10 +0000
Received: from SN6PR13MB2334.namprd13.prod.outlook.com ([fe80::81a5:ebdd:dfcb:b7]) by SN6PR13MB2334.namprd13.prod.outlook.com ([fe80::81a5:ebdd:dfcb:b7%4]) with mapi id 15.20.4087.016; Thu, 22 Apr 2021 03:54:10 +0000
From: Linda Dunbar <linda.dunbar@futurewei.com>
To: "draft-li-spring-tunnel-segment@ietf.org" <draft-li-spring-tunnel-segment@ietf.org>, "spring@ietf.org" <spring@ietf.org>
Thread-Topic: some questions about draft-li-spring-tunnel-segment-02
Thread-Index: Adc3J4A+Tll31hyuQJ6C7TNLLTpzCg==
Date: Thu, 22 Apr 2021 03:54:09 +0000
Message-ID: <SN6PR13MB23349EDFF515111382DEBB2785469@SN6PR13MB2334.namprd13.prod.outlook.com>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
authentication-results: ietf.org; dkim=none (message not signed) header.d=none;ietf.org; dmarc=none action=none header.from=futurewei.com;
x-originating-ip: [72.180.73.64]
x-ms-publictraffictype: Email
x-ms-office365-filtering-correlation-id: bec56934-30b8-4383-adf3-08d90542490c
x-ms-traffictypediagnostic: SN6PR13MB2333:
x-microsoft-antispam-prvs: <SN6PR13MB2333FA8607DABF84072483CE85469@SN6PR13MB2333.namprd13.prod.outlook.com>
x-ms-oob-tlc-oobclassifiers: OLM:6430;
x-ms-exchange-senderadcheck: 1
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:SN6PR13MB2334.namprd13.prod.outlook.com; PTR:; CAT:NONE; SFS:(4636009)(39840400004)(346002)(136003)(366004)(376002)(396003)(38100700002)(7696005)(52536014)(83380400001)(316002)(122000001)(66574015)(26005)(478600001)(2906002)(86362001)(450100002)(66946007)(76116006)(55016002)(66476007)(71200400001)(8676002)(5660300002)(44832011)(9686003)(33656002)(186003)(4744005)(110136005)(6506007)(66556008)(66446008)(64756008)(8936002); DIR:OUT; SFP:1102;
x-ms-exchange-antispam-messagedata: =?us-ascii?Q?Gck7QS12dsO8jd+qz5eHgaqyAi03OoxAZB9zyiYLvlBMS8zztcLfdupY98qv?= =?us-ascii?Q?LW+pQUse0JMHREyS/DEzUk+8BdA51uaj4Q/P6E83oCv7XfiC2YaKw5lzdJer?= =?us-ascii?Q?uH78qzdZmahx0wD/cDHyYxGEc7Mz9UvjvIerHTF5BsvuiQLNY7mPTXUDmw83?= =?us-ascii?Q?YL2fx2iB5XAn8k7ebNkE3CcFV7LaaugtqFx225fbsWUKuKUe56qsi6DFO38S?= =?us-ascii?Q?JQwIgWA/SmdIb6Po4eyAykCYOoVSBWXRbde4Z4gx6dAD1ZMUKFEc1HEzPuyl?= =?us-ascii?Q?3PsaTmYwXnukVyai+9pyyTGnhMpi/XbfxUs5YV+MWF+jwHQTaWtxKUy1RqpN?= =?us-ascii?Q?9IfCESCbQR8b+triAdmLZM6qXDHg/3/n8LOJ8p5pg7ARB+aficUN6D9r+GKV?= =?us-ascii?Q?/3svC8/UfhVePODNsAzq2g3sqXebNLZvMEef2OP/haFsNcW4EVL8pJdHMU9O?= =?us-ascii?Q?1deZwk1QIaobpgq+DD/a604ecrl4afwR5dl/3Fd9ia4fe/EYUc79xho1SKzM?= =?us-ascii?Q?Lah4D4tbKMXWi37/e0ZNI+3YbqDekG0YmG9I+AGbKdPE4Ui8Hpjsu2TYCcmK?= =?us-ascii?Q?ORXgl8jDN/iXDkdtVUnV77iyotoCavZquhC98MQS67C/BXSaVhnCEE9EMjpG?= =?us-ascii?Q?xN+o6aktZHxpOAWiT1J/RD39Gy5wkm3dgWiB5OD8z4fxxZR/84h0HtePz1mb?= =?us-ascii?Q?j/7ktFK1Icl2AgqSAijzCuPtUPsKDQruaFSyVudh0IS81t1CHoI15b23ugD+?= =?us-ascii?Q?QSgebr6OrnTfA1F6/9u90iBUGp2GU8COOiZ9NVMwkFSo9Vuc0Hr+m2XCzvGF?= =?us-ascii?Q?06y4NdG3erN/iLH6Dutey9ie97wgAI5EO9rNu26raB1nKPD+jaYjwz1ocMLD?= =?us-ascii?Q?pwli7Z4RsBVp4EyEmtOUcEu7LA9sWTD5Z/4KPsSg+BREYymXDda/C0yYUkp5?= =?us-ascii?Q?mLeKC8O95T23jPXOFdZ85CrO52HFSEinfyWmYg84nyO9qqWmvXm51uW0pT5C?= =?us-ascii?Q?evyAogsyXRYqLrYJeTdWHmOii0bt7N+3OVFAzo+Lz0kQxuzbR1UmalK3ln+y?= =?us-ascii?Q?B0HCl3t7XX+qIXDtL7xIuQmW/kq1PgdFdCJuedw/6w5AtEs4m8VyYQzUIdJ9?= =?us-ascii?Q?PNV59i+rBar+O1EGZdFTT3giXIpTA6PrEZ5kxUKypYUJcQ2vm6jnA3Zxgk9r?= =?us-ascii?Q?Gt+FRrLKLCa7ndEx3CklSZtJJye5ZEpowvImOX0A+kbafSW7hCJS/4+a4fM4?= =?us-ascii?Q?RZd702p/TJzMY22/5HstyRrqubEUwN+7By49QAugZIxlANkYZjZJ3MgBitIG?= =?us-ascii?Q?g8c=3D?=
x-ms-exchange-transport-forked: True
Content-Type: multipart/alternative; boundary="_000_SN6PR13MB23349EDFF515111382DEBB2785469SN6PR13MB2334namp_"
MIME-Version: 1.0
X-OriginatorOrg: Futurewei.com
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-AuthSource: SN6PR13MB2334.namprd13.prod.outlook.com
X-MS-Exchange-CrossTenant-Network-Message-Id: bec56934-30b8-4383-adf3-08d90542490c
X-MS-Exchange-CrossTenant-originalarrivaltime: 22 Apr 2021 03:54:09.9534 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: 0fee8ff2-a3b2-4018-9c75-3a1d5591fedc
X-MS-Exchange-CrossTenant-mailboxtype: HOSTED
X-MS-Exchange-CrossTenant-userprincipalname: 7qFdiow5w3jiYCDxaFqcM1PHKpPFKG2f0t+24rl22M1hUiKCe3gOeexBFedjLuUG7fJJ6eIV3MT2m1Aa+QlnsA==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN6PR13MB2333
Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/2ivZRpn1MyNKdG8u5e7l48gCn6M>
Subject: [spring] some questions about draft-li-spring-tunnel-segment-02
X-BeenThere: spring@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: "Source Packet Routing in NetworkinG \(SPRING\)" <spring.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/spring>, <mailto:spring-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/spring/>
List-Post: <mailto:spring@ietf.org>
List-Help: <mailto:spring-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/spring>, <mailto:spring-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 22 Apr 2021 03:54:24 -0000

Zhenbin, Cheng, and Nan,

Section 3.2 of the draft-li-spring-tunnel-segment-02 discusses the SR traffic traversing non-SR domains.
Do you require a Tunnel Segment that connects 2 (or more) SR islands to be preestablished? Can the Tunnel segment be IPsec Tunnel? So that two separate SR islands can be connected by the third party network (e.g.,  Internet)?

Are the two SR islands under the same administrative control? i.e., Are the SID used by SR Island-1 recognized by nodes within the SR Island-2 ?


Thank you.
Linda Dunbar