Re: [6tsch] Is generic management method possible?
Qin Wang <qinwang@berkeley.edu> Tue, 10 September 2013 12:49 UTC
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Date: Tue, 10 Sep 2013 20:48:55 +0800
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From: Qin Wang <qinwang@berkeley.edu>
To: Maria Rita PALATTELLA <maria-rita.palattella@uni.lu>
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Cc: Thomas Watteyne <watteyne@eecs.berkeley.edu>, "6tsch@ietf.org" <6tsch@ietf.org>
Subject: Re: [6tsch] Is generic management method possible?
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Hi Thomas and Maria Rita, I totally agree with you that we should focus on centralized approach in the current step. But I cannot see it is very difficult to cover distributed case. Maybe I miss something. To be clear, in my mind, the exchanged messages in distributed case is that between 6top and some Reservation protocol like RSVP/NSIS in upper layer. In another word, it is about exchanging messages inside a node, instead of exchanging messages among neighbors. I don't understand why for different upper layer Reservation protocol, the control flows from/to 6top could be different significantly. Can you explain a little more? Thanks Qin On Tue, Sep 10, 2013 at 2:45 PM, Maria Rita PALATTELLA < maria-rita.palattella@uni.lu> wrote: > Qin, I agree too about defining the formats in a way that we can reuse > them for the distributed case. But, for the time being, I would be focused > on the centralized approach and try to find a solution for it. And then, > move to the distributed one (that for sure will raise other issues up).*** > * > > Let’s try to solve the problems one by one! **** > > Maria Rita **** > > ** ** > > *From:* 6tsch-bounces@ietf.org [mailto:6tsch-bounces@ietf.org] *On Behalf > Of *Thomas Watteyne > *Sent:* Tuesday, September 10, 2013 6:24 AM > *To:* 6tsch@ietf.org > *Subject:* Re: [6tsch] Is generic management method possible?**** > > ** ** > > Qin,**** > > ** ** > > I fully agree that being able to reuse some formats in the distributed > case is important. The question about the exact protocol to use for > negotiation between neighbors in the distributed case is a very broad one. > It is too early to discuss that. We can, however, keep the distributed case > in mind when proposing formats.**** > > ** ** > > Thomas**** > > ** ** > > On Mon, Sep 9, 2013 at 1:57 PM, Qin Wang <qinwang@berkeley.edu> wrote:**** > > Hi All,**** > > ** ** > > In the previous discussion, we have figured out 5 control flows between > PCE and node, which were expressed in the context of centralized case. > Obviously, it will be great if the messages in those identified control > flows are generic, suitable for both centralized and distributed case. > During last Friday's call, it was mentioned but is still a open issue. I > propose to continue the discussion in this thread.**** > > ** ** > > Comparing the role of PCE in centralized case,I think RSVP/NSIS will play > similar role in distributed case. In another word, instead of exchanging > message with PCE via a network, 6top Management Entity will exchange > message with a Reservation Entity like RSVP/NSIS inside the same node. The > question is if it is possible to use same design in the two cases. (I'm > not expert on RSVP and NSIS, please input your opinions).**** > > ** ** > > Firstly, I think the contents of messages in the centralized and > distributed case are overlap in a big portion. For example, both of them > need to send action flow, both of them need statistics data, and so on.*** > * > > ** ** > > Secondly, in terms of Message Exchange, the two cases are similar. The > only difference is, in centralized case, the control messages are carried > by CoAP as payload; and in distributed case, the control messages are > "sent" via internal pointer. **** > > ** ** > > Make sense?**** > > ** ** > > Qin**** > > ** ** > > ** ** > > > _______________________________________________ > 6tsch mailing list > 6tsch@ietf.org > https://www.ietf.org/mailman/listinfo/6tsch**** > > ** ** > > _______________________________________________ > 6tsch mailing list > 6tsch@ietf.org > https://www.ietf.org/mailman/listinfo/6tsch > >
- [6tsch] Is generic management method possible? Qin Wang
- Re: [6tsch] Is generic management method possible? Thomas Watteyne
- Re: [6tsch] Is generic management method possible? Maria Rita PALATTELLA
- Re: [6tsch] Is generic management method possible? Qin Wang
- Re: [6tsch] Is generic management method possible? Thomas Watteyne
- Re: [6tsch] Is generic management method possible? Qin Wang