Re: [Roll] New Version Notification for draft-ietf-roll-dao-projection-05.txt

"Pascal Thubert (pthubert)" <pthubert@cisco.com> Fri, 21 December 2018 14:34 UTC

From: "Pascal Thubert (pthubert)" <pthubert@cisco.com>
To: Routing Over Low power and Lossy networks <roll@ietf.org>
CC: "James Pylakutty (mundenma)" <mundenma@cisco.com>, Rahul Jadhav <rahul.ietf@gmail.com>, Rahul Arvind Jadhav <rahul.ietf@gmail.com>, Matthew Gillmore <matthew.gillmore@itron.com>
Thread-Topic: New Version Notification for draft-ietf-roll-dao-projection-05.txt
Thread-Index: AQHUmTkvdPsBVLpXnUeq2Xx7PrFr4aWJQBKw
Date: Fri, 21 Dec 2018 14:33:33 +0000
Deferred-Delivery: Fri, 21 Dec 2018 14:33:29 +0000
Message-ID: <d8ead7ffd8da48aca35beb1e31c7d4eb@XCH-RCD-001.cisco.com>
References: <154540238113.20280.17623814147967940967.idtracker@ietfa.amsl.com>
In-Reply-To: <154540238113.20280.17623814147967940967.idtracker@ietfa.amsl.com>
Accept-Language: fr-FR, en-US
Content-Language: en-US
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
MIME-Version: 1.0
Archived-At: <https://mailarchive.ietf.org/arch/msg/roll/wUqZFl3jQ4lh22KhR4prloi2LtA>
Subject: Re: [Roll] New Version Notification for draft-ietf-roll-dao-projection-05.txt
Precedence: list

Dear all:

With 05 we worked on error flows, what happens is forwarding along a P-Route fails. The idea is to use a new ICMP Error message that is sent to the root  by the source of the projected SR P-Route in non-storing and by any node in the storing P-path.

The RPL ICMP "Error in Source Routing Header" is still used as in RFC 6550; it is used in non-storing P-Routing between the node that detects that the SR path is broken and the source of the SR path. This is the way we keep things consistent with RFC 6550. Note that a projected SR path is compatible with intermediate nodes doing non storing but not aware of this draft.

We still need to refine how the root recognizes what route is broken. There is text about using Local InstanceID, to be discussed. Any suggestion welcome.

Merry Christmas!

Pascal


> -----Original Message-----
> From: internet-drafts@ietf.org <internet-drafts@ietf.org>
> Sent: vendredi 21 décembre 2018 15:26
> To: James Pylakutty (mundenma) <mundenma@cisco.com>; Pascal Thubert
> (pthubert) <pthubert@cisco.com>; Rahul Jadhav <rahul.ietf@gmail.com>;
> Rahul Arvind Jadhav <rahul.ietf@gmail.com>; Matthew Gillmore
> <matthew.gillmore@itron.com>
> Subject: New Version Notification for draft-ietf-roll-dao-projection-05.txt
> 
> 
> A new version of I-D, draft-ietf-roll-dao-projection-05.txt
> has been successfully submitted by Pascal Thubert and posted to the IETF
> repository.
> 
> Name:		draft-ietf-roll-dao-projection
> Revision:	05
> Title:		Root initiated routing state in RPL
> Document date:	2018-12-21
> Group:		roll
> Pages:		22
> URL:            https://www.ietf.org/internet-drafts/draft-ietf-roll-dao-projection-
> 05.txt
> Status:         https://datatracker.ietf.org/doc/draft-ietf-roll-dao-projection/
> Htmlized:       https://tools.ietf.org/html/draft-ietf-roll-dao-projection-05
> Htmlized:       https://datatracker.ietf.org/doc/html/draft-ietf-roll-dao-
> projection
> Diff:           https://www.ietf.org/rfcdiff?url2=draft-ietf-roll-dao-projection-05
> 
> Abstract:
>    This document proposes a protocol extension to RPL that enables to
>    install a limited amount of centrally-computed routes in a RPL graph,
>    enabling loose source routing down a non-storing mode DODAG, or
>    transversal routes inside the DODAG.  As opposed to the classical
>    route injection in RPL that are injected by the end devices, this
>    draft enables the root of the DODAG to projects the routes that are
>    needed on the nodes where they should be installed.
> 
> 
> 
> 
> Please note that it may take a couple of minutes from the time of submission
> until the htmlized version and diff are available at tools.ietf.org.
> 
> The IETF Secretariat

Re: [Roll] New Version Notification for draft-iet… Pascal Thubert (pthubert)