Category: Cisco Devices, Textual Conventions and Registries
Description: Defines textual conventions for configuring performance report collection intervals in Cisco monitoring MIBs.
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What Is CISCO-REPORT-INTERVAL-TC-MIB?
CISCO-REPORT-INTERVAL-TC-MIB is a Cisco textual-conventions module defining shared data types for configuring performance-history report-collection intervals, used by other Cisco MIBs that maintain interval-based performance data (e.g. bucketed 15-minute or 24-hour statistics). It doesn't itself expose live device data - it standardizes how a reporting interval and a rolling history of N such intervals are represented so consuming MIBs can define configurable performance-history tables consistently. A CISCO-REPORT-INTERVAL-TC-MIB reference is typically consulted by MIB developers rather than network operators, since its sole content is the shared reporting-interval type definitions other Cisco MIBs import. Because it is purely definitional, it plays only an indirect role in monitoring: it enables performance-monitoring MIBs (covering interface, voice, or system performance counters) to structure their historical data buckets consistently. It is a dependency of numerous other Cisco performance/history MIBs that import its textual-convention types. It is deployed conceptually wherever Cisco IOS/IOS-XE devices support configurable performance-interval history collection.
IPNetwork Monitor allows you to monitor SNMP objects defined in CISCO-REPORT-INTERVAL-TC-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.
Supported Devices
Cisco Catalyst 9300 Series (2024/2025 refresh, e.g. 9300X) — current flagship stackable IOS-XE switch supporting performance-interval history
Monitoring Examples
This is a textual-conventions-only module with no sample objects of its own; it defines conventions such as the reporting-interval type and the count of retained history intervals (N) that other Cisco performance-history MIBs use to build their own bucketed statistics tables, so no standalone monitoring scenario applies here.
This MIB module defines textual conventions used by MIB modules that define objects describing performance history data based on a configurable reporting interval. Use of these textual conventions assumes the following: - The SNMP entity supports performance history data collection based on a configurable interval. - The SNMP entity is capable of maintaining a history of N report intervals. A MIB module using these textual conventions defines the value of N, which may be configurable. - The SNMP entity may optionally support aggregation of performance data maintained by historic report intervals. - A MIB module using these textual conventions may define separate tables for the current interval, historic intervals, and the aggregation of historic performance data. - A MIB module using these textual conventions must define the following objects: xxxReportInterval OBJECT-TYPE SYNTAX Unsigned32 (0..4294967295) UNITS 'xxx-units' MAX-ACCESS read-only STATUS current DESCRIPTION 'This object indicates the duration of a report interval.' ::= { xxx } xxxReportMaxIntervals OBJECT-TYPE SYNTAX Unsigned32 (0..4294967295) UNITS 'report intervals' MAX-ACCESS read-only STATUS current DESCRIPTION 'This object indicates the maximum number of report intervals.' ::= { xxx } xxxReportElapsedTime OBJECT-TYPE SYNTAX Gauge32 UNITS 'xxx-units' MAX-ACCESS read-only STATUS current DESCRIPTION 'This object indicates the time that has elapsed since the beginning of the current report interval.' ::= { xxx } xxxReportIntervals OBJECT-TYPE SYNTAX Gauge32 UNITS 'report intervals' MAX-ACCESS read-only STATUS current DESCRIPTION 'This object indicates the number of report intervals for which data has been collected. The value of this column starts at 0 and increments at the end of each report interval until the number of report intervals is equal to the corresponding value of xxxReportMaxIntervals.' ::= { xxx } xxxReportInvalidIntervals OBJECT-TYPE SYNTAX Gauge32 UNITS 'report intervals' MAX-ACCESS read-only STATUS current DESCRIPTION 'This object indicates the number of report intervals, in the range of 0 to the value of the corresponding instance of xxxReportValidIntervals, for which no data is available. The value of this column will typically be 0, except in certain circumstances when some intervals are not available. ::= { xxx } Observe that if the MIB module defines tables that maintain performance data for multiple instances of a measured entity (e.g., an interface), then the definition of these objects need to allow for the maintenance of these objects per instance of the measured entity. A MIB module may choose to provide the write-access to xxxReportInterval and xxxReportMaxIntervals. In this case, the MIB module must consider the following: - The MIB module may want to refine the data type to something more concise. Alternatively, an implementation may specify variations in an agent capabilities. - If the definition of either of these objects specifies '0' as an acceptable value, then the descriptive text should describe the semantics of this value. - The descriptive text of xxxReportInterval must explain, 'When this value changes, the SNMP entity should discard any previously collected report interval data.' - The descriptive text of xxxReportMaxIntervals must explain, 'When this value changes to a value less than its current value, the SNMP entity should discard older report intervals to comply with the new value.'
RFC description
Cisco textual conventions for reporting intervals in management systems.
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