Re: [Roll] draft-ietf-roll-unaware-leaves (WAS: AD Review of draft-ietf-roll-efficient-npdao-16)
Ines Robles <mariainesrobles@googlemail.com> Thu, 31 October 2019 11:57 UTC
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From: Ines Robles <mariainesrobles@googlemail.com>
Date: Thu, 31 Oct 2019 13:57:02 +0200
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To: Routing Over Low power and Lossy networks <roll@ietf.org>
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Subject: Re: [Roll] draft-ietf-roll-unaware-leaves (WAS: AD Review of draft-ietf-roll-efficient-npdao-16)
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Hi Pascal, Agree with the status codes. Questions: 1- In the Table 1: RPL Status per RFC 6550, when the status is zero, would it be good to add between brackets (Success/Unqualified acceptance -since you mentioned it when explaining bit E -) like: , +---------+---------------------------+ | Range | Meaning | +=========+===========================+ | 0 | RFC 6550 (Success) | +---------+---------------------------+ 2- where states "...When the 'A' flag is reset," should it be better "When the 'A' flag is not set," ? Thank you, Ines. On Wed, Oct 30, 2019 at 5:43 PM Alvaro Retana <aretana.ietf@gmail.com> wrote: > Just for clarity. > > The changes proposed here are for draft-ietf-roll-unaware-leaves > (not draft-ietf-roll-efficient-npdao). I changed the subject to reflect > that. > > Alvaro. > > On October 30, 2019 at 6:37:15 AM, Pascal Thubert (pthubert) ( > pthubert@cisco.com) wrote: > > Dear all : > > > > There is a need in the RUL draft to carry a 6LoWPAN ND status inside a RPL > status so we can avoid duplicating DAR/DAC and DAO/DAO-ACK through the > network. This also allows async communication down the DODAG through DCO > (efficient NPDAO). > > > > Alvaro pointed out that mapping one status in the other as proposed so > far was not too clean. The change proposed herein addresses this concern. > The change would be adding another control bit in the RPL status and > formalizing the format as follows: > > > > 7. Updated RPL Status > > > > The RPL Status is defined in section 6.5.1. of [RFC6550] for use in > > the DAO-Ack message and values are assigned as follows: > > > > +---------+---------------------------+ > > | Range | Meaning | > > +=========+===========================+ > > | 0 | RFC 6550 | > > +---------+---------------------------+ > > | 1-127 | Not an outright rejection | > > +---------+---------------------------+ > > | 128-255 | Rejection | > > +---------+---------------------------+ > > > > Table 1: RPL Status per RFC 6550 > > > > This specification extends the scope of the RPL status to be used in > > RPL DCO messages. Furthermore, this specification enables to carry > > the status values defined for use in the IPv6 ND Extended Address > > Registration Option (EARO) and listed in table 1 of [RFC8505]. Only > > EARO status values in the range 0-63 can be transported. > > > > The resulting RPL status is as follows: > > > > 0 1 2 3 4 5 6 7 > > +-+-+-+-+-+-+-+-+ > > |E|A| Value | > > +-+-+-+-+-+-+-+-+ > > > > Figure 2: RPL status Format > > > > RPL Status subfields: > > > > E: 1-bit flag. Set to indicate a rejection. When not set, a value > > of 0 indicates success and other values indicate an non-outright- > > rejection as per RFC 6550. > > > > A: 1-bit flag. Indicates the type of the status value. > > > > Status Value: 6-bit unsigned integer. If the 'A' flag is set this > > field transports a status value defined for IPv6 ND EARO. When > > the 'A' flag is reset, the status value is defined in a RPL > > extension > > > > When building a DCO message upon an IPv6 ND NA or DAC message, the > > root MUST place the ARO status unchanged in a mapped DCO with the 'A' > > bit set. Conversely the 6LR MUST place the ARO status unchanged in > > the NA(EARO) that is built upon a DCO with the 'A' bit set. > > > > Comments welcome (and urgent!). Unless I see opposition I plan to publish > before cutoff so we can discuss it at IETF 106. > > > > All the best; > > > > Pascal > > > > *From:* Alvaro Retana <aretana.ietf@gmail.com> > *Sent:* mardi 29 octobre 2019 23:10 > *To:* Pascal Thubert (pthubert) <pthubert@cisco.com>; > draft-ietf-roll-efficient-npdao@ietf.org > *Cc:* roll-chairs@ietf.org; roll <roll@ietf.org>; Peter van der Stok < > consultancy@vanderstok.org> > *Subject:* RE: AD Review of draft-ietf-roll-efficient-npdao-16 > > > > Hi! > > > > I’m fine with the changes proposed to draft-ietf-roll-efficient-npdao. > > > > I want to see the WG reach consensus on the changes related > to draft-ietf-roll-unaware-leaves. > > > > Thanks! > > > > Alvaro. > > > > On October 29, 2019 at 5:52:13 AM, Pascal Thubert (pthubert) ( > pthubert@cisco.com) wrote: > > If you agree with the proposed line above I'll make editions and come > back to you for more comments and/or approval. > > _______________________________________________ > Roll mailing list > Roll@ietf.org > https://www.ietf.org/mailman/listinfo/roll >
- [Roll] AD Review of draft-ietf-roll-efficient-npd… Alvaro Retana
- Re: [Roll] AD Review of draft-ietf-roll-efficient… Pascal Thubert (pthubert)
- Re: [Roll] AD Review of draft-ietf-roll-efficient… Alvaro Retana
- Re: [Roll] AD Review of draft-ietf-roll-efficient… Pascal Thubert (pthubert)
- Re: [Roll] AD Review of draft-ietf-roll-efficient… Alvaro Retana
- Re: [Roll] AD Review of draft-ietf-roll-efficient… Pascal Thubert (pthubert)
- Re: [Roll] AD Review of draft-ietf-roll-efficient… Pascal Thubert (pthubert)
- Re: [Roll] AD Review of draft-ietf-roll-efficient… Alvaro Retana
- Re: [Roll] AD Review of draft-ietf-roll-efficient… Pascal Thubert (pthubert)
- Re: [Roll] AD Review of draft-ietf-roll-efficient… Pascal Thubert (pthubert)
- [Roll] draft-ietf-roll-unaware-leaves (WAS: AD Re… Alvaro Retana
- Re: [Roll] draft-ietf-roll-unaware-leaves (WAS: A… Ines Robles
- Re: [Roll] draft-ietf-roll-unaware-leaves (WAS: A… Pascal Thubert (pthubert)