Re: [ippm] ippm-metric-registry-24

tom petch <ietfa@btconnect.com> Tue, 26 January 2021 10:38 UTC

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From: tom petch <ietfa@btconnect.com>
To: "acmorton@att.com" <acmorton@att.com>
CC: "ippm@ietf.org" <ippm@ietf.org>
Thread-Topic: ippm-metric-registry-24
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Date: Tue, 26 Jan 2021 10:38:29 +0000
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Subject: Re: [ippm] ippm-metric-registry-24
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Reading on ....
________________________________________
From: ippm <ippm-bounces@ietf.org> on behalf of tom petch <ietfa@btconnect.com>
Sent: 26 January 2021 10:09

Looking at this I-D, I see that earlier versions defined Identifier as 16-bit integer range 0 to 65535 with 64512 to 65536 reserved for private use

which is obviously a mistake.

The current version has

   The Registered Performance Metric unique identifier is an unbounded
   integer (range 0 to infinity).

   The Identifier 0 should be Reserved.  The Identifier values from
   64512 to 65536 are reserved for private or experimental use, and the
   user may encounter overlapping uses.

which is not obviously a mistake but I suspect that it still is one.

<tp>
.... I see the Revision is defined in
7.5.3.  Revision
   The revision number of a Registered Performance Metric, starting at 0

and again

8.2.  Revising Registered Performance Metrics
...
Each Registered Performance Metric in the Performance Metrics
   Registry has a revision number, starting at zero. 

but in 

11.5.3.  Revision
   <1.0>

which is not what I think of as zero.  It also begs the question of this being a major and minor revision number which it looks like to me but is not mentioned elsewhere.



Tom Petch
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