Re: [Coma] Reprogramming Protocols
"Ersue, Mehmet (NSN - DE/Munich)" <mehmet.ersue@nsn.com> Tue, 17 July 2012 10:09 UTC
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From: "Ersue, Mehmet (NSN - DE/Munich)" <mehmet.ersue@nsn.com>
To: "ext Pascal Thubert (pthubert)" <pthubert@cisco.com>, Jonathan.Hansford@generaldynamics.uk.com, coma@ietf.org
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Subject: Re: [Coma] Reprogramming Protocols
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Dear Pascal, I am wondering whether this has to do with network management. I think we should differentiate between the management and operation of the network. A programmable routing functionality which improves the operational behavior might be useful but not in our focus. Coma(n) especially raises the questions on and discusses the use cases and requirements for the management of networks with constrained devices. I can imagine policy management as a requirement on the management of networks with constrained devices. If you think so, please formulate it and describe the use case from the application pov. However, I think optimizing routing functionality is on another level. Please read also the problem statement in -01 draft which hopefully describes the focus of Coma(n): http://tools.ietf.org/html/draft-ersue-constrained-mgmt-01 Comments are welcome. Cheers, Mehmet From: ext Pascal Thubert (pthubert) [mailto:pthubert@cisco.com] Sent: Tuesday, July 17, 2012 8:48 AM To: Ersue, Mehmet (NSN - DE/Munich); Jonathan.Hansford@generaldynamics.uk.com; coma@ietf.org Subject: RE: [Coma] Reprogramming Protocols Hum... I do not necessarily agree. RPL, which is probably a protocol of choice for such environment, defines Objective functions that handle metric interpretation and some logic to tie multiple metrics and policies together. I'd think that as long as we stay at the abstract (interface) level we can push some hints to an existing OF to twist its behavior, and tell RPL to support a new instance based on a new OF that needs to be installed. There is probably a way to define: - an abstract interface between RPL and the OF so that we can dynamically plug an OF in. - abstract behavior specifications on which metric are supported and how they are handled (eg additive, weighted, etc) by an existing OF so we can tune the graph generation. - abstract policies specifications so we can control peering, size, power, you name it. What do you think? Cheers, Pascal From: coma-bounces@ietf.org [mailto:coma-bounces@ietf.org] On Behalf Of Ersue, Mehmet (NSN - DE/Munich) Sent: vendredi 8 juin 2012 15:02 To: Jonathan.Hansford@generaldynamics.uk.com; coma@ietf.org Subject: Re: [Coma] Reprogramming Protocols Hi Jonathan, this could be seen under the SW/firmware distribution, however reprogramming protocol code is a device specific logic and not a management task. Cheers, Mehmet From: coma-bounces@ietf.org [mailto:coma-bounces@ietf.org] On Behalf Of ext Jonathan.Hansford@generaldynamics.uk.com Sent: Friday, June 08, 2012 2:38 PM To: coma@ietf.org Subject: [Coma] Reprogramming Protocols Hi, One thing that hasn't yet been mentioned (unless I missed it) is the issue or reprogramming protocols for adding new applications or modifying/patching existing applications/firmware. I imagine this is of particular interest in Sensor Nets but may also be beneficial in other scenarios. Will this also be considered within coma? Thanks, Jonathan ________________________________ This email and any files attached are intended for the addressee and may contain information of a confidential nature. If you are not the intended recipient, be aware that this email was sent to you in error and you should not disclose, distribute, print, copy or make other use of this email or its attachments. Such actions, in fact, may be unlawful. In compliance with the various Regulations and Acts, General Dynamics United Kingdom Limited reserves the right to monitor (and examine for viruses) all emails and email attachments, both inbound and outbound. Email communications and their attachments may not be secure or error- or virus-free and the company does not accept liability or responsibility for such matters or the consequences thereof. General Dynamics United Kingdom Limited, Registered Office: 21 Holborn Viaduct, London EC1A 2DY. Registered in England and Wales No: 1911653.
- [Coma] Reprogramming Protocols Jonathan.Hansford
- Re: [Coma] Reprogramming Protocols Ersue, Mehmet (NSN - DE/Munich)
- Re: [Coma] Reprogramming Protocols Pascal Thubert (pthubert)
- Re: [Coma] Reprogramming Protocols Ersue, Mehmet (NSN - DE/Munich)
- Re: [Coma] Reprogramming Protocols Ulrich Herberg