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Fri, 30 Aug 2019 06:42:56 +0000 From: "Pascal Thubert (pthubert)" To: Routing Over Low power and Lossy networks Thread-Topic: suggested addition to draft-ietf-roll-efficient-npdao Thread-Index: AdVe/YcA7dtmnImrSGKYwVT3ZLHQqA== Date: Fri, 30 Aug 2019 06:42:50 +0000 Deferred-Delivery: Fri, 30 Aug 2019 06:41:50 +0000 Message-ID: Accept-Language: fr-FR, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=pthubert@cisco.com; x-originating-ip: [2001:420:c0c0:1003::52] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 3a290574-b7bc-402d-f8c0-08d72d154a90 x-microsoft-antispam: BCL:0; PCL:0; RULEID:(2390118)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600166)(711020)(4605104)(1401327)(2017052603328)(7193020); SRVR:MN2PR11MB4352; x-ms-traffictypediagnostic: MN2PR11MB4352: x-ms-exchange-purlcount: 2 x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:8882; 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boundary="_000_MN2PR11MB3565C4909E1E1327A640D6BDD8BD0MN2PR11MB3565namp_" MIME-Version: 1.0 X-MS-Exchange-CrossTenant-Network-Message-Id: 3a290574-b7bc-402d-f8c0-08d72d154a90 X-MS-Exchange-CrossTenant-originalarrivaltime: 30 Aug 2019 06:42:56.3563 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 5ae1af62-9505-4097-a69a-c1553ef7840e X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: jF2v/Fjt99W8ONKUBb0jhNM4sriLX0zu9l3BehFll0RiZVe+dc+/cX/nacyDxkDiXD90+H7iY2m2ARV4jTjlrw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR11MB4352 X-OriginatorOrg: cisco.com X-Outbound-SMTP-Client: 173.36.7.13, xch-aln-003.cisco.com X-Outbound-Node: rcdn-core-7.cisco.com Archived-At: Subject: [Roll] suggested addition to draft-ietf-roll-efficient-npdao X-BeenThere: roll@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Routing Over Low power and Lossy networks List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 30 Aug 2019 06:43:02 -0000 --_000_MN2PR11MB3565C4909E1E1327A640D6BDD8BD0MN2PR11MB3565namp_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Dear all ; I know it's late but I'd suggest an addition to draft-ietf-roll-efficient-n= pdao. There's a reserved field in the DCO. My suggestion is to use it to transport RPL DAO-ACK status values as define= d in RFC 6550. This way we can signal the reason of the DCO to the node. This will become significant with the RPL-unaware leaves draft, so we can r= ebuild a NA(EARO) with a non-zero status based on a DCO. Else the RUL draft will have to update efficient NP DAO, which does not loo= k as good. Any objection to this? Pascal 0 1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | RPLInstanceID |K|D| Flags | Reserved | DCOSequence | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | | + + | | + DODAGID(optional) + | | + + | | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Option(s)... +-+-+-+-+-+-+-+-+ --_000_MN2PR11MB3565C4909E1E1327A640D6BDD8BD0MN2PR11MB3565namp_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Dear all ;<= /p>

 

I know it’s late but I’d suggest an addi= tion to draft-ietf-roll-efficient-npdao. There’s a reserved field in = the DCO.

My suggestion is to use it to transport RPL DAO-ACK = status values as defined in RFC 6550. This way we can signal the reason of = the DCO to the node.

This will become significant with the RPL-unaware le= aves draft, so we can rebuild a NA(EARO) with a non-zero status based on a = DCO.

 

Else the RUL draft will have to update efficient NP = DAO, which does not look as good.

 

Any objection to this?

 

Pascal

 

   0       &n= bsp;           1 &nb= sp;            =      2        &= nbsp;          3

     0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6= 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1

     +-+-+-+-+-= 3;-+-+-+-+-+-+-+-+-+-+-+-+-= +-+-+-+-+-+-+-+-+-+-+-+-= 3;-+-+

     | RPLInstanceID |K|D|  = Flags   |   Reserv= ed    | DCOSequence   |

     +-+-+-+-+-= 3;-+-+-+-+-+-+-+-+-+-+-+-+-= +-+-+-+-+-+-+-+-+-+-+-+-= 3;-+-+

     |     &n= bsp;            = ;            &n= bsp;            = ;            &n= bsp;       |

     +     &nb= sp;            =             &nb= sp;            =             &nb= sp;       +

     |     &n= bsp;            = ;            &n= bsp;            = ;            &n= bsp;       |

     +    &nbs= p;            &= nbsp;          DODAGID(optiona= l)            &= nbsp;     +

     |     &n= bsp;            = ;            &n= bsp;            = ;             &= nbsp;      |

     +    &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;        +

     |     &n= bsp;            = ;            &n= bsp;            = ;            &n= bsp;       |

     +-+-+-+-+-= 3;-+-+-+-+-+-+-+-+-+-+-+-+-= +-+-+-+-+-+-+-+-+-+-+-+-= 3;-+-+

     |   Option(s)...

     +-+-+-+-+-= 3;-+-+-+

 

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