Re: [Roll] Default setting for config flags after MOP 7.
"Pascal Thubert (pthubert)" <pthubert@cisco.com> Tue, 21 July 2020 13:47 UTC
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From: "Pascal Thubert (pthubert)" <pthubert@cisco.com>
To: Routing Over Low power and Lossy networks <roll@ietf.org>
Thread-Topic: [Roll] Default setting for config flags after MOP 7.
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Date: Tue, 21 Jul 2020 13:47:22 +0000
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Subject: Re: [Roll] Default setting for config flags after MOP 7.
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> -----Original Message----- > From: Roll <roll-bounces@ietf.org> On Behalf Of Michael Richardson > Sent: mardi 21 juillet 2020 15:18 > To: Routing Over Low power and Lossy networks <roll@ietf.org> > Subject: Re: [Roll] Default setting for config flags after MOP 7. > > > Pascal Thubert \(pthubert\) <pthubert=40cisco.com@dmarc.ietf.org> wrote: > > But then, when it finds a MOP that is >= 7, what should the code that > > we write today do? For one thing RFC 6550 makes it a leaf. > > But what about the RFC 8138 compression and the RPI 0x23? > > So, it would find that MOP=7, and there was a MOPEX which it did not > understand? > Yes, as a RPL aware leaf maybe? It should be able to send DAOs, right? > Well, but it might not know where to send them, not knowing if it is in storing > or non-storing. True, the MOP may be even yet another thingy. RUL is the safest bet, but at the time of RFC 6550 RULs did not exist so we said leaf. The current text has language to MUST RUL operation when not supporting RFC 8138 and the flag is set. " It is RECOMMENDED to only deploy nodes that support [RFC8138] in a network where the compression is turned on. A node that does not support [RFC8138] MUST only be used as a RUL. " The same should be recommended for a non-understood MOP, as opposed to leaf only. But that's for a RFC-6550-update not this spec I guess... > > > For both bits, the assumption would be that the probation phase has > > ended and that implementations have migrated. > > {yes, and some old hardware has been turned back on. Maybe it will upgrade > over the air...} > > > This means that after MOP 7 the default is that RFC 8138 is turned on, > > and that Option Type in the RPL option is 0x23. > > Yes, I agree. Many thanks, Michael Pascal > > -- > ] Never tell me the odds! | ipv6 mesh networks [ > ] Michael Richardson, Sandelman Software Works | IoT architect [ > ] mcr@sandelman.ca http://www.sandelman.ca/ | ruby on rails [ > > > -- > Michael Richardson <mcr+IETF@sandelman.ca>, Sandelman Software Works - > = IPv6 IoT consulting =- > >
- [Roll] Default setting for config flags after MOP… Pascal Thubert (pthubert)
- Re: [Roll] Default setting for config flags after… Michael Richardson
- Re: [Roll] Default setting for config flags after… Pascal Thubert (pthubert)
- Re: [Roll] Default setting for config flags after… Rahul Jadhav