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HC-PerfHist-TC-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY,
Counter64,
Unsigned32,
Integer32,
mib-2 FROM SNMPv2-SMI
TEXTUAL-CONVENTION FROM SNMPv2-TC;
hcPerfHistTCMIB MODULE-IDENTITY
LAST-UPDATED "200402030000Z" -- February 3, 2004
ORGANIZATION "ADSLMIB Working Group"
CONTACT-INFO "WG-email: adslmib@ietf.org
Info: https://www1.ietf.org/mailman/listinfo/adslmib
Chair: Mike Sneed
Sand Channel Systems
Postal: P.O. Box 37324
Raleigh NC 27627-7324
USA
Email: sneedmike@hotmail.com
Phone: +1 206 600 7022
Co-editor: Bob Ray
PESA Switching Systems, Inc.
Postal: 330-A Wynn Drive
Huntsville, AL 35805
USA
Email: rray@pesa.com
Phone: +1 256 726 9200 ext. 142
Co-editor: Rajesh Abbi
Alcatel USA
Postal: 2301 Sugar Bush Road
Raleigh, NC 27612-3339
USA
Email: Rajesh.Abbi@alcatel.com
Phone: +1 919 850 6194
"
DESCRIPTION
"This MIB Module provides Textual Conventions to be
used by systems supporting 15 minute based performance
history counts that require high-capacity counts.
Copyright (C) The Internet Society (2004). This version
of this MIB module is part of RFC 3705: see the RFC
itself for full legal notices."
REVISION "200402030000Z" -- February 3, 2004
DESCRIPTION "Initial version, published as RFC 3705."
::= { mib-2 107 }
HCPerfValidIntervals ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"The number of near end intervals for which data was
collected. The value of an object with an
HCPerfValidIntervals syntax will be 96 unless the
measurement was (re-)started within the last 1440 minutes,
in which case the value will be the number of complete 15
minute intervals for which the agent has at least some data.
In certain cases (e.g., in the case where the agent is a
proxy) it is possible that some intervals are unavailable.
In this case, this interval is the maximum interval number
for which data is available."
SYNTAX Integer32 (0..96)
HCPerfInvalidIntervals ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"The number of near end intervals for which no data is
available. The value of an object with an
HCPerfInvalidIntervals syntax will typically be zero except
in cases where the data for some intervals are not available
(e.g., in proxy situations)."
SYNTAX Integer32 (0..96)
HCPerfTimeElapsed ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"The number of seconds that have elapsed since the beginning
of the current measurement period. If, for some reason,
such as an adjustment in the system's time-of-day clock or
the addition of a leap second, the duration of the current
interval exceeds the maximum value, the agent will return
the maximum value.
For 15 minute intervals, the range is limited to (0..899).
For 24 hour intervals, the range is limited to (0..86399)."
SYNTAX Integer32 (0..86399)
HCPerfIntervalThreshold ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"This convention defines a range of values that may be set
in a fault threshold alarm control. As the number of
seconds in a 15-minute interval numbers at most 900,
objects of this type may have a range of 0...900, where the
value of 0 disables the alarm."
SYNTAX Unsigned32 (0..900)
HCPerfCurrentCount ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"A gauge associated with a performance measurement in a
current 15 minute measurement interval. The value of an
object with an HCPerfCurrentCount syntax starts from zero
and is increased when associated events occur, until the
end of the 15 minute interval. At that time the value of
the gauge is stored in the first 15 minute history
interval, and the gauge is restarted at zero. In the case
where the agent has no valid data available for the
current interval, the corresponding object instance is not
available and upon a retrieval request a corresponding
error message shall be returned to indicate that this
instance does not exist.
This count represents a non-negative integer, which
may increase or decrease, but shall never exceed 2^64-1
(18446744073709551615 decimal), nor fall below 0. The
value of an object with HCPerfCurrentCount syntax
assumes its maximum value whenever the underlying count
exceeds 2^64-1. If the underlying count subsequently
decreases below 2^64-1 (due, e.g., to a retroactive
adjustment as a result of entering or exiting unavailable
time), then the object's value also decreases.
Note that this TC is not strictly supported in SMIv2,
because the 'always increasing' and 'counter wrap'
semantics associated with the Counter64 base type are not
preserved. It is possible that management applications
which rely solely upon the (Counter64) ASN.1 tag to
determine object semantics will mistakenly operate upon
objects of this type as they would for Counter64 objects.
This textual convention represents a limited and short-
term solution, and may be deprecated as a long term
solution is defined and deployed to replace it."
SYNTAX Counter64
HCPerfIntervalCount ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"A gauge associated with a performance measurement in
a previous 15 minute measurement interval. In the case
where the agent has no valid data available for a
particular interval, the corresponding object instance is
not available and upon a retrieval request a corresponding
error message shall be returned to indicate that this
instance does not exist.
Let X be an object with HCPerfIntervalCount syntax.
Let Y be an object with HCPerfCurrentCount syntax.
Let Z be an object with HCPerfTotalCount syntax.
Then, in a system supporting a history of n intervals with
X(1) and X(n) the most and least recent intervals
respectively, the following applies at the end of a 15
minute interval:
- discard the value of X(n)
- the value of X(i) becomes that of X(i-1)
for n >= i > 1
- the value of X(1) becomes that of Y.
- the value of Z, if supported, is adjusted.
This count represents a non-negative integer, which
may increase or decrease, but shall never exceed 2^64-1
(18446744073709551615 decimal), nor fall below 0. The
value of an object with HCPerfIntervalCount syntax
assumes its maximum value whenever the underlying count
exceeds 2^64-1. If the underlying count subsequently
decreases below 2^64-1 (due, e.g., to a retroactive
adjustment as a result of entering or exiting unavailable
time), then the value of the object also decreases.
Note that this TC is not strictly supported in SMIv2,
because the 'always increasing' and 'counter wrap'
semantics associated with the Counter64 base type are not
preserved. It is possible that management applications
which rely solely upon the (Counter64) ASN.1 tag to
determine object semantics will mistakenly operate upon
objects of this type as they would for Counter64 objects.
This textual convention represents a limited and short-
term solution, and may be deprecated as a long term
solution is defined and deployed to replace it."
SYNTAX Counter64
HCPerfTotalCount ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"A gauge representing the aggregate of previous valid 15
minute measurement intervals. Intervals for which no
valid data was available are not counted.
This count represents a non-negative integer, which
may increase or decrease, but shall never exceed 2^64-1
(18446744073709551615 decimal), nor fall below 0. The
value of an object with HCPerfTotalCount syntax
assumes its maximum value whenever the underlying count
exceeds 2^64-1. If the underlying count subsequently
decreases below 2^64-1 (due, e.g., to a retroactive
adjustment as a result of entering or exiting unavailable
time), then the object's value also decreases.
Note that this TC is not strictly supported in SMIv2,
because the 'always increasing' and 'counter wrap'
semantics associated with the Counter64 base type are not
preserved. It is possible that management applications
which rely solely upon the (Counter64) ASN.1 tag to
determine object semantics will mistakenly operate upon
objects of this type as they would for Counter64 objects.
This textual convention represents a limited and short-
term solution, and may be deprecated as a long term
solution is defined and deployed to replace it."
SYNTAX Counter64
END