RE: [NGO] NETCONF Data types

Hi, 

> -----Original Message-----
> From: Sharon Chisholm [mailto:schishol@nortel.com] 
> Sent: Wednesday, December 05, 2007 10:31 AM
> To: Andy Bierman
> Cc: ngo@ietf.org
> Subject: RE: [NGO] NETCONF Data types
> 
> Hi
> 
> My logic is that most of the value in types comes from building up
> complex types, not by redefining base types. I don't 
> understand why you
> are proposing redefining xs:dateTime to map to what we had in SNMP
for
> example. I want to make sure we understand the requirements 
> of the space
> we are in now and not just auto-translate data types from 
> where we were
> a few years ago.
> 
> Honestly, I don't know the differences between a counter and 
> a gauge and
> I suspect the a lot  of people who read SNMP MIBs who were in the
same
> boat.

In 15 years of advising MIB writers and NMS developers, I have never
had anybody complain they didn't understand the difference between a
counter and a guage, or thought the distinction was unimportant. I
feel sad that you, as a MIB Doctor, do not understand the difference.

dbh

> 
> Sharon
> 
> -----Original Message-----
> From: Andy Bierman [mailto:ietf@andybierman.com] 
> Sent: Wednesday, December 05, 2007 1:15 PM
> To: Chisholm, Sharon (CAR:ZZ00)
> Cc: balazs.lengyel@ericsson.com; ngo@ietf.org
> Subject: Re: [NGO] NETCONF Data types
> 
> Sharon Chisholm wrote:
> > Hi
> >
> > But just because they are used in programming, doesn't mean 
> we need to
> 
> > distinguish them in the XSD. I'm going to check with some 
> of my apps 
> > people to see whether they would find this distinction 
> useful or if a 
> > single integer which could be as large as 64 bit is fine at 
> this later
> 
> > point in time. But I was more specifically worried about counter 
> > versus gauge versus integer versus unsigned integer versus. 
> > Historically these turned into CLRs.
> >   
> 
> I totally disagree.
> I remember several times, NMS programmers at Cisco asking for int8,
> int16, uint8, uint16.  It is very useful to have these 'extra'
types.
> 
> I also think it has been very useful to distinguish between gauges,
> counters, and simple numbers in SMIv2.
> If one followed your logic to the end, we would only have 'string',
> since that is the only 'real' content in an XML simpleType.
> 
> 
> > An advantage here if we don't limit the length of our integers, we

> > won't need to rewrite our Schema when we need 128bit integers ;-)
> >
> >   
> 
> We can add them later if and when somebody has a compelling use
case.
> 
> > Sharon
> >   
> 
> Andy
> 
> > -----Original Message-----
> > From: Balazs Lengyel [mailto:balazs.lengyel@ericsson.com] 
> > Sent: Wednesday, December 05, 2007 3:32 AM
> > To: Chisholm, Sharon (CAR:ZZ00)
> > Cc: ngo@ietf.org
> > Subject: Re: [NGO] NETCONF Data types
> >
> > Hello Sharon,
> > The uint32, int64 etc. integer types are not a left-overs from
SMI.
> They
> > are the integer types that people normally use in programing.
Names
> like
> > uint16, int32 are better then short or long. They tell you exactly
> what
> > you deal with. I see this as an improvement over the XSD types.
> > Balazs
> >
> > Sharon Chisholm wrote:
> >   
> >> Hi
> >>
> >> One of the things that people seemed to agree on early in 
> the NETCONF
> 
> >> content discussion was that SNMP & SMI defined too many 
> similar data 
> >> types and we didn't want to do that in NETCONF. Do people 
> still agree
> 
> >> that we don't want 30 flavours of integers defined? I 
> prefer focusing
> 
> >> our efforts on defining higher level data types.
> >>
> >> Sharon Chisholm
> >> Nortel
> >> Ottawa, Ontario
> >> Canada
> >>
> >>
> >> _______________________________________________
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> >>     
> >
> >
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> >
> >
> >   
> 
> 
> 
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