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PerfHist-TC-MIB
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-- *****************************************************************
-- PerfHist-TC-MIB.my: Performance History MIB file
--
-- May 1999, Igor Chernin
--
-- Copyright (c) 1999 by Cisco Systems, Inc.
-- All rights reserved.
--
-- *****************************************************************
--
-- This mib was extracted from RFC 2493
PerfHist-TC-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY,
Gauge32, mib-2
FROM SNMPv2-SMI
TEXTUAL-CONVENTION
FROM SNMPv2-TC;
perfHistTCMIB MODULE-IDENTITY
LAST-UPDATED "9811071100Z"
ORGANIZATION "IETF AToMMIB and TrunkMIB WGs"
CONTACT-INFO
"Kaj Tesink
Postal: Bellcore
331 Newman Springs Road
Red Bank, NJ 07701
USA
Tel: +1 732 758 5254
Fax: +1 732 758 2269
E-mail: [email protected]"
DESCRIPTION
"This MIB Module provides Textual Conventions
to be used by systems supporting 15 minute
based performance history counts."
::= { mib-2 58 }
-- The Textual Conventions defined below are organized
-- alphabetically
-- Use of these TCs assumes the following:
-- 0 The agent supports 15 minute based history
-- counters.
-- 0 The agent is capable of keeping a history of n
-- intervals of 15 minute performance data. The
-- value of n is defined by the specific MIB
-- module but shall be 0 < n =< 96.
-- 0 The agent may optionally support performance
-- data aggregating the history intervals.
-- 0 The agent will keep separate tables for the
-- current interval, the history intervals, and
-- the total aggregates.
-- 0 The agent will keep the following objects.
-- If performance data is kept for multiple instances
-- of a measured entity, then
-- these objects are applied to each instance of
-- the measured entity (e.g., interfaces).
-- xyzTimeElapsed OBJECT-TYPE
-- SYNTAX INTEGER (0..899)
-- MAX-ACCESS read-only
-- 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, the current interval
-- exceeds the maximum value, the agent will return
-- the maximum value."
-- ::= { xxx }
-- xyzValidIntervals OBJECT-TYPE
-- SYNTAX INTEGER (0..<n>)
-- MAX-ACCESS read-only
-- STATUS current
-- DESCRIPTION
-- "The number of previous near end intervals
-- for which data was collected.
-- [ The overall constraint on <n> is 1 =< n =< 96; ]
-- [ Define any additional constraints on <n> here. ]
-- The value will be <n> unless the measurement was
-- (re-)started within the last (<n>*15) 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."
-- ::= { xxx }
-- xyzInvalidIntervals OBJECT-TYPE
-- SYNTAX INTEGER (0..<n>)
-- MAX-ACCESS read-only
-- STATUS current
-- DESCRIPTION
-- "The number of intervals in the range from
-- 0 to xyzValidIntervals for which no
-- data is available. This object will typically
-- be zero except in cases where the data for some
-- intervals are not available (e.g., in proxy
-- situations)."
-- ::= { xxx }
PerfCurrentCount ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"A counter associated with a
performance measurement in a current 15
minute measurement interval. The value
of this counter 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 counter is
stored in the first 15 minute history
interval, and the CurrentCount 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 (for example, a noSuchName
error for SNMPv1 and a noSuchInstance for
SNMPv2 GET operation)."
SYNTAX Gauge32
PerfIntervalCount ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"A counter 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 (for example, a noSuchName
error for SNMPv1 and a noSuchInstance for
SNMPv2 GET operation).
In a system supporting
a history of n intervals with
IntervalCount(1) and IntervalCount(n) the
most and least recent intervals
respectively, the following applies at
the end of a 15 minute interval:
- discard the value of IntervalCount(n)
- the value of IntervalCount(i) becomes that
of IntervalCount(i-1) for n >= i > 1
- the value of IntervalCount(1) becomes that
of CurrentCount
- the TotalCount, if supported, is adjusted."
SYNTAX Gauge32
PerfTotalCount ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"A counter associated with a
performance measurements aggregating the
previous valid 15 minute measurement
intervals. (Intervals for which no valid
data was available are not counted)"
SYNTAX Gauge32
END