[Nml-wg] Use case: a media converter (multi-layer)
Jeroen van der Ham
vdham at uva.nl
Mon Aug 10 14:22:47 CDT 2009
Freek Dijkstra wrote:
> Adaptation Function id urn:ieee:802.3ab
> urn:ieee:802.3ab name 1000base-T
> urn:ieee:802.3ab client layer urn:ieee:802.3-2005
> urn:ieee:802.3ab server layer urn:ansi:eia-568-a
>
> Adaptation Function id urn:ieee:802.3-clause38
> urn:ieee:802.3-clause38 name 1000base-LX
> urn:ieee:802.3-clause38 client layer urn:ieee:802.3-2005
> urn:ieee:802.3-clause38 server layer urn:itu:fiber-8micron
>
> where urn:ieee:802.3-2005, urn:ansi:eia-568-a and urn:itu:fiber-8micron
> are layers -- I think we should define a class for this too.
> client layer and server layer are attributes of the Adaptation Function
> class.
I strongly suggest not to invent urn's like this, even if this is just
an example. This will be archived on the web and can always be found later.
We do not know at all whether IEEE, ANSI or the ITU have URN namespaces
like this. Or even if they do, that they want to identify their
technologies like this.
In absence of a better identifier I suggest using a URL to the standard.
Or the group that wrote the standard if none is available.
I agree that this is incredibly annoying, and that we'll probably have
to maintain a list with identifiers for technologies. But we can't just
make stuff up while referring to other standards organisations.
So:
802.3ab: http://grouper.ieee.org/groups/802/3/ab/index.html
eia-568-a: http://standardsdocuments.tiaonline.org/tia-eia-568.htm
802.3-2008: http://standards.ieee.org/getieee802/802.3.html
etc.
Jeroen.
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