Re: [netmod] comments on revised-datastores-00
Martin Bjorklund <mbj@tail-f.com> Mon, 14 November 2016 21:10 UTC
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Date: Mon, 14 Nov 2016 22:10:32 +0100
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Subject: Re: [netmod] comments on revised-datastores-00
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Hi, "Susan Hares" <shares@ndzh.com> wrote: > Juergen and Lada: > > #2 - is interesting to me. Is dynamic configuration protocol = I2RS? Or > control-plane protocols = I2RS? Details tbd, but this architecture allows for a new kind of datastore ("control-plane datastore") which could be defined for i2rs. > On #5 - how do you merge I2RS RIB static routes + routing-configuration rib > routes? That is not covered by this architecture. It has to be defined in i2rs. > Can you see the difference in the applied configuration? You can see the result in the applied configuration, and you can see the statically configured routes in <intended> and the i2rs-defined routes in the-new-i2rs-datastore. /martin > > Thanks, > > Sue > > -----Original Message----- > From: netmod [mailto:netmod-bounces@ietf.org] On Behalf Of Juergen > Schoenwaelder > Sent: Monday, November 14, 2016 4:42 AM > To: Ladislav Lhotka > Cc: netmod@ietf.org > Subject: Re: [netmod] comments on revised-datastores-00 > > On Mon, Nov 14, 2016 at 11:23:04AM +0900, Ladislav Lhotka wrote: > > Hi, > > > > I've read the revised-datastores-00 document, in general I like it, > > here are my initial comments and questions: > > > > 1. Even if <intended> is valid, it can still be in conflict with the > > actual content of <applied> that may come from e.g. dynamic > > configuration protocols. How are such cases supposed to be resolved? > > Yes. The whole idea is to expose these potential differences instead of > hiding them behind a curtain. > > > 2. What is the distinction between dynamic configuration protocols and > > control-plane protocols? > > Good question. I believe this to be at the end implementation specific. > The question I think really is whether a control-plane protocol interacts > with the configuration management component or not. > > > 3. Shared <candidate> has known problems. Maybe it's time to part with > > it in this new datastore model? > > This clearly was not the focus of this work. > > > 4. Templates are briefly mentioned in several places, it would be useful > > to explain this concept in more detail. > > I agree. > > > 5. Is it necessary that "<operational-state> datastore contains all > > configuration data actually used by the system"? For example, static > > routes should appear in RIBs, so having them separately in operational > > state seems redundant. > > I do not understand your question. Is the RIB exposed or not? Anyway, we > need a general model and not a model for specific aspects such as routing. > Yes, there can be redundancy but there can also be semantic differences. The > <operational-state> datastore tells me what is actually used (regardless of > what has happened with the statically configured values). In other words, if > I want to debug what my box is actually doing, looking at the > <operational-state> datastore is probably a good idea. > > /js > > -- > Juergen Schoenwaelder Jacobs University Bremen gGmbH > Phone: +49 421 200 3587 Campus Ring 1 | 28759 Bremen | Germany > Fax: +49 421 200 3103 <http://www.jacobs-university.de/> > > _______________________________________________ > netmod mailing list > netmod@ietf.org > https://www.ietf.org/mailman/listinfo/netmod > > _______________________________________________ > netmod mailing list > netmod@ietf.org > https://www.ietf.org/mailman/listinfo/netmod >
- [netmod] comments on revised-datastores-00 Ladislav Lhotka
- Re: [netmod] comments on revised-datastores-00 Juergen Schoenwaelder
- Re: [netmod] comments on revised-datastores-00 Susan Hares
- Re: [netmod] comments on revised-datastores-00 Martin Bjorklund
- Re: [netmod] comments on revised-datastores-00 Andy Bierman
- Re: [netmod] comments on revised-datastores-00 Juergen Schoenwaelder
- Re: [netmod] comments on revised-datastores-00 Susan Hares
- Re: [netmod] comments on revised-datastores-00 Ladislav Lhotka
- Re: [netmod] comments on revised-datastores-00 Juergen Schoenwaelder
- Re: [netmod] comments on revised-datastores-00 Ladislav Lhotka
- Re: [netmod] comments on revised-datastores-00 Juergen Schoenwaelder
- Re: [netmod] comments on revised-datastores-00 Martin Bjorklund
- Re: [netmod] comments on revised-datastores-00 Martin Bjorklund
- Re: [netmod] comments on revised-datastores-00 Ladislav Lhotka
- Re: [netmod] comments on revised-datastores-00 Andy Bierman
- Re: [netmod] comments on revised-datastores-00 Ladislav Lhotka
- Re: [netmod] comments on revised-datastores-00 Phil Shafer
- Re: [netmod] comments on revised-datastores-00 Ladislav Lhotka
- Re: [netmod] comments on revised-datastores-00 Martin Bjorklund
- Re: [netmod] comments on revised-datastores-00 Martin Bjorklund
- Re: [netmod] comments on revised-datastores-00 Martin Bjorklund
- Re: [netmod] comments on revised-datastores-00 Martin Bjorklund