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question on PIB and Counter32/Counter64
If you could take a quick look at
http://www.ietf.org/internet-drafts/draft-ietf-rap-feedback-fr-pib-04.txt
section 3.2, then you can read:
The SPPI does not support the Counter32/64 textual conventions (TC)
of SNMP - for feedback collection two similar textual conventions
have been defined in this PIB: Usage32 and Usage64.
In addition to the differential functionality of 'Counter', where
only the difference between two samples generally carries
information, a single value of a 'Usage' attribute usually provides
absolute information, since
- its initial value is known (0)
- no wrap-around events should occur
- the time or event when the initial value was set should be
available directly or indirectly from other objects.
When 'Usage' attributes are defined in a PRC, events that could
cause a reset of the attribute to it's initial value should be
defined in the description as well as the mechanism that allows the
PDP to detect the time of the last reset.
No usual COPS activity however should cause the reset of a Usage
attribute. In the case of a suspension of monitoring activity
(frwkFeedbackActionIndicator set to 'suspendMonitoringAndReports'),
'Usage' attributes should keep their values and continue counting
after monitoring is resumed.
I don't agree with that and I worry about them defining Usage32
and Usage64 TCs to be used instead of Counter32/64 and/or
ZeroBasedCounter32/64
Any comments?
Thanks,
Bert