Re: [netmod] I-D Action: draft-lange-netmod-iana-timezones-00.txt

[<[e-mail]>]

> -----Original Message-----
> From: Martin Bjorklund [mailto:[e-mail]]
> Sent: 28 June 2012 16:03
> To: Jonathan Hansford
> Cc: [e-mail]; [e-mail];
> [e-mail]
> Subject: Re: [netmod] I-D Action:
draft-lange-netmod-iana-timezones-00.txt
> 
> <[e-mail]> wrote:
> > > -----Original Message-----
> > > From: Juergen Schoenwaelder
> > [mailto:[e-mail]]
> > > Sent: 28 June 2012 14:12
> > > To: Lange, Jeffrey K (GE Energy); Martin Bjorklund;
[e-mail]
> > > Subject: Re: [netmod] I-D Action:
> > draft-lange-netmod-iana-timezones-00.txt
> > >
> > > On Thu, Jun 28, 2012 at 03:02:30PM +0200, Juergen Schoenwaelder
wrote:
> > >
> > > > > So that also is a bit arbitrary as well.  Should I leave the
enums
> > in
> > > alphabetical order? Or should it match what the zone.tab file
does?
> > > >
> > > > Any order is likely irrelevant over time. See below.
> > > >
> > >
> > > Well, I realize this statement is not really helpful / correct.
You
> > > can keept the enums defined in the order they are defined in the
TZ
> > > database but then the value statements MUST be used and the
numbers
> > > over time won't be assigned in a strictly increasing order. This
means
> > > that YANG tools can use the definition order (if they are able to
> > > access it) or they might end up using the numeric value order,
which
> > > will over time be increasingly meaningless.
> >
> > Still learning here, but RFC6087 states:
> >
> > If extensibility of enumerated values is required, then the
> > 'identityref' data type SHOULD be used instead of an enumeration or
> > other built-in type.
> >
> > So why are enums being considered over identityrefs?
> 
> In this case, you really do not want the kind of extensibility that
> identities give you - with an identity you get decentralized
> extensibility; anyone can add their own new value.  That's probably
> not what you need for timezones...
> 

Some might want to add military timezones
(http://www.worldtimezone.com/wtz-map-military.html).

Jonathan

> 
> /martin


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