Re: [Idr] Can one Destination Address appear in both Tunnel Encap Attribute and in MP_REACH_NLRI ?
Ondrej Zajicek <santiago@crfreenet.org> Thu, 17 October 2019 09:33 UTC
Return-Path: <santiago@crfreenet.org>
X-Original-To: idr@ietfa.amsl.com
Delivered-To: idr@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 0076612085B; Thu, 17 Oct 2019 02:33:13 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.897
X-Spam-Level:
X-Spam-Status: No, score=-1.897 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_NONE=0.001, URIBL_BLOCKED=0.001] autolearn=unavailable autolearn_force=no
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 XktrhWBKxPWJ; Thu, 17 Oct 2019 02:33:11 -0700 (PDT)
Received: from mail.crfreenet.org (varda.crfreenet.org [81.92.145.160]) by ietfa.amsl.com (Postfix) with ESMTP id D804B12084D; Thu, 17 Oct 2019 02:33:10 -0700 (PDT)
Received: from feanor (feanor-poda.crfreenet.org [164.215.121.182]) by mail.crfreenet.org (Postfix) with ESMTP id 491165FB82; Thu, 17 Oct 2019 11:33:08 +0200 (CEST)
Date: Thu, 17 Oct 2019 11:33:08 +0200
From: Ondrej Zajicek <santiago@crfreenet.org>
To: Robert Raszuk <robert@raszuk.net>
Cc: Srihari Sangli <ssangli@juniper.net>, "idr@ietf.org" <idr@ietf.org>, Linda Dunbar <linda.dunbar@futurewei.com>, Srihari Sangli <ssangli=40juniper.net@dmarc.ietf.org>, "draft-ietf-idr-tunnel-encaps@ietf.org" <draft-ietf-idr-tunnel-encaps@ietf.org>
Message-ID: <20191017093308.GB2427@feanor.crfreenet.org>
References: <MN2PR13MB3582A1E1FE3441CDD54A101985950@MN2PR13MB3582.namprd13.prod.outlook.com> <78F7A474-6F86-4EA3-93A3-001B4E2C2116@juniper.net> <CAOj+MMGqKj=zKbws92ni1fL2O-So=dbcW-mb02uRnQ+G55xm_w@mail.gmail.com> <0B48E5E7-3A1F-45C0-ACF9-B9A0FA323ED4@juniper.net> <CAOj+MMHs91BoMpgrN2-qtMAgVtiUE_e2bm=BG=+xVnfU9-6Aaw@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Disposition: inline
In-Reply-To: <CAOj+MMHs91BoMpgrN2-qtMAgVtiUE_e2bm=BG=+xVnfU9-6Aaw@mail.gmail.com>
X-Operating-System: Debian GNU/Linux
User-Agent: Mutt/1.10.1 (2018-07-13)
Archived-At: <https://mailarchive.ietf.org/arch/msg/idr/ahwdmeqGjyAK_seo25b8e4tX1vg>
Subject: Re: [Idr] Can one Destination Address appear in both Tunnel Encap Attribute and in MP_REACH_NLRI ?
X-BeenThere: idr@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Inter-Domain Routing <idr.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/idr>, <mailto:idr-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/idr/>
List-Post: <mailto:idr@ietf.org>
List-Help: <mailto:idr-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/idr>, <mailto:idr-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 17 Oct 2019 09:33:13 -0000
On Thu, Oct 17, 2019 at 10:25:13AM +0200, Robert Raszuk wrote: > Srihari, > > Can you comment on the expected BGP next hop validation behaviour ? > > Can you also comment on the next hop BGP is installing the prefixes to RIB > with ? > > Is tunnel endpoint now the NH BGP is asking RIB to track ? My impression of the draft is that handling of BGP NH and address from Tunnel Encap attribute is different. BGP NH is tracked in RIB and recursivery resolved, could be used to daisy-chain encapsulation in RIB (section 7). In contrast, the address from the Tunnel attribute is just passed to FIB as encapsulation action argument. But it is true that this part of the draft is a bit blurry and would definitely need more clear wording. -- Ondrej 'Santiago' Zajicek (email: santiago@crfreenet.org)
- [Idr] Can one Destination Address appear in both … Linda Dunbar
- Re: [Idr] Can one Destination Address appear in b… Srihari Sangli
- Re: [Idr] Can one Destination Address appear in b… Robert Raszuk
- Re: [Idr] Can one Destination Address appear in b… Srihari Sangli
- Re: [Idr] Can one Destination Address appear in b… Robert Raszuk
- Re: [Idr] Can one Destination Address appear in b… Ondrej Zajicek
- Re: [Idr] Can one Destination Address appear in b… Robert Raszuk
- Re: [Idr] Can one Destination Address appear in b… Rajiv Asati (rajiva)
- Re: [Idr] Can one Destination Address appear in b… Robert Raszuk
- Re: [Idr] Can one Destination Address appear in b… Keyur Patel
- Re: [Idr] Can one Destination Address appear in b… Keyur Patel
- Re: [Idr] Can one Destination Address appear in b… Robert Raszuk
- Re: [Idr] Can one Destination Address appear in b… Keyur Patel
- Re: [Idr] Can one Destination Address appear in b… Linda Dunbar
- Re: [Idr] Can one Destination Address appear in b… Robert Raszuk