Re: [apps-discuss] Device Classification

[Bruce Nordman <[e-mail]>]

The mechanism proposed below seems like a fine choice - the only part
of this I am attempting to address is the content of the classification
field ("ip-router" in the example).

I propose a numerical index, much like the registry of port numbers, or
even ASCII.  I would expect a list of 100-150 device types - not 10 and not
thousands.
This index would be used with many mechanisms.

For extending a service like Webfinger to devices, this would define
one of the fields that would be returned.

Thanks,

--Bruce

On Fri, Oct 28, 2011 at 11:58 AM, Bob Wyman <[e-mail]> wrote:

> Consider using a mechanism like that defined for .well-known/host-meta URLs
> as defined in http://tools.ietf.org/html/draft-hammer-hostmeta-17
> Assuming that each device had a tiny http server embedded in it, then I
> could query a device like so:
>
> GET /.well-known/host-meta HTTP/1.1
> Host: device-url.com
>
>
> And, I would get back a response containing something like the following,
> which would include a classification value as well as links to just about
> any other URLs that might be interesting.
>
>   <?xml version='1.0' encoding='UTF-8'?>
>   <XRD xmlns='http://docs.oasis-open.org/ns/xri/xrd-1.0'>
>     <Subject>http://device-url.com/xy</Subject>
>     <Property type='http://spec.example.net/ipclassification'>ip-router</Property>
>
>     <Property type='http://spec.example.net/model'>IPR 2000</Property>
>
>  <Link rel='administrator'
> href='http://example.com/john' /> <Link rel='energy-consumption' href='
> http://device-url.com/energy-consumption' />
>
>     <Link rel='manufacturer-site'
>      href='http://big-vendor.com/' />
>
> </XRD>
>
>
> The nice thing about an approach such as that described above is that it is
> easily extensible to cover whatever needs might appear in the future. it
> would also be compatible with many of the systems that other folk are
> building, such as WebFinger<http://www.ietf.org/id/draft-jones-appsawg-webfinger-00.txt>,
> that deal with discovering information about people, accounts, etc.
>
> bob wyman
>
> On Fri, Oct 28, 2011 at 2:16 PM, Bruce Nordman <[e-mail]> wrote:
>
>> Greetings all--
>>
>>   I am new to the apps area, with my involvement in IETF to date
>> focused on energy management.
>>   I recently posted:
>>      https://datatracker.ietf.org/doc/draft-nordman-classification/
>> the goal of which is to define a very basic enumeration for
>> classifying IP devices for generic purposes.  In my case, it is
>> for a system that vacuums up energy data for all devices in a
>> building to have a basic sense of what type of device it is
>> (e.g. router, computer, printer, refrigerator, ...).
>> I do believe that many applications would also find this useful,
>> particularly as physical-world objects seek to understand what
>> other devices are in their vicinity, whether or not they want to
>> directly interact with them.
>>   I am not seeking to do anything more complex than the above.
>> This is not intended to replace detailed classification and
>> characteristics
>> schemes that exist or will be developed for narrow sets of devices -- this
>> is only for the case of covering all devices and includes no
>> characteristics.
>>   I would welcome collaborators on this.
>>   Thanks,
>>
>> --Bruce
>>
>> --
>> *Bruce Nordman*
>> Lawrence Berkeley National Laboratory
>> eetd.lbl.gov/ea/nordman
>> [e-mail]
>> 510-486-7089
>> m: 510-501-7943
>>
>>
>> _______________________________________________
>> apps-discuss mailing list
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>>
>>
>


-- 
*Bruce Nordman*
Lawrence Berkeley National Laboratory
eetd.lbl.gov/ea/nordman
[e-mail]
510-486-7089
m: 510-501-7943