CISCO-HEALTH-MONITOR-MIB device MIB details by Cisco

CISCO-HEALTH-MONITOR-MIB file content

The SNMP protocol is used to for conveying information and commands between agents and managing entities. SNMP uses the User Datagram Protocol (UDP) as the transport protocol for passing data between managers and agents. The reasons for using UDP for SNMP are, firstly it has low overheads in comparison to TCP, which uses a 3-way hand shake for connection. Secondly, in congested networks, SNMP over TCP is a bad idea because TCP in order to maintain reliability will flood the network with retransmissions.

Management information (MIB) is represented as a collection of managed objects. These objects together form a virtual information base called MIB. An agent may implement many MIBs, but all agents must implement a particular MIB called MIB-II [16]. This standard defines variables for things such as interface statistics (interface speeds, MTU, octets sent, octets received, etc.) as well as various other things pertaining to the system itself (system location, system contact, etc.). The main goal of MIB-II is to provide general TCP/IP management information.

Use ActiveXperts Network Monitor 2024 to import vendor-specific MIB files, inclusing CISCO-HEALTH-MONITOR-MIB.

Vendor:	Cisco
Mib:	CISCO-HEALTH-MONITOR-MIB  [download]  [view objects]
Tool:	ActiveXperts Network Monitor 2024 [download]    (ships with advanced SNMP/MIB tools)

-- *****************************************************************
-- CISCO-HEALTH-MONITOR-MIB.my: Health Monitor MIB
--
-- December 2001, Peter Hanselmann & Gene Clendon
--
-- Copyright (c) 2001, 2002 by cisco Systems, Inc.
-- All rights reserved.
-- *****************************************************************
--

CISCO-HEALTH-MONITOR-MIB DEFINITIONS ::= BEGIN

IMPORTS
        MODULE-IDENTITY,
        OBJECT-TYPE,
        NOTIFICATION-TYPE,
        Gauge32,
        Counter32
                FROM SNMPv2-SMI
        SnmpAdminString
                FROM SNMP-FRAMEWORK-MIB
        TruthValue,
        TEXTUAL-CONVENTION
                FROM SNMPv2-TC
        MODULE-COMPLIANCE,
        OBJECT-GROUP,
        NOTIFICATION-GROUP
                FROM SNMPv2-CONF
        entPhysicalIndex
                FROM ENTITY-MIB
        ciscoMgmt
                FROM CISCO-SMI;

 
ciscoHealthMonitorMIB MODULE-IDENTITY
        LAST-UPDATED    "200211140900Z" -- November 14, 2002 9:00 AM
        ORGANIZATION    "Cisco Systems, Inc."
        CONTACT-INFO
                "       Cisco Systems
                        Customer Service

                Postal: 170 W. Tasman Drive
                        San Jose, CA  95134
                        USA
 
                Tel: +1 800 553-NETS
 
                E-mail: cs-healthmonitor@cisco.com"
        DESCRIPTION
                "Health Monitor MIB module.

                The Health Monitor uses a model based on events of varying 
                severity and frequency, and predefined rules, to generate 
                a metric that represents a system's (and its subsystems') 
                level of health.   

                The events are typically internally generated notifications
                in response to detrimental or correctional changes in the 
                state of the hardware or software of the system. Detrimental
                events are classified under one of the following severity 
                levels:

                Catastrophic   - Causes or leads to system failure
                Critical       - Major subsystem or functionality failure
                High           - Potential for major impact to important 
                                 functions
                Medium         - Potential for minor impact to functionality
                Low            - Negligible impact to functionality

                Whilst correctional events fall under the following 
                classification:

                Positive       - Not a fault event. May cause or lead to 
                                 the return of functionality

                This MIB module provides information for tracking occurrences
                of the above events, and presents the associated health 
                metric for the system and its component subsystems."
        REVISION        "200211140900Z" -- November 14, 2002 9:00 AM
        DESCRIPTION
                "Initial version of this MIB module."
        ::= { ciscoMgmt 243 }


-- Health Monitor MIB objects definitions

-- The Health Monitor MIB consists of:
-- Health Monitor Notifications
-- Health Monitor Table

ciscoHealthMonitorMIBObjects OBJECT IDENTIFIER ::= { ciscoHealthMonitorMIB 1 }

--
-- Health Textual Conventions
--

HealthLevel ::= TEXTUAL-CONVENTION
        STATUS       current
        DESCRIPTION
                "Reflects the health of a system or subsystem based on 
                system events and predefined rules, expressed as a 
                percentage. The UNITS clause associated with each object 
                will indicate the degree of precision."
        SYNTAX Gauge32(0..10000)


--
--  Health Monitor Group
--

ciscoHealthMonitorTable OBJECT-TYPE
        SYNTAX      SEQUENCE OF CiscoHealthMonitorEntry
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
                "This table contains Health Monitor statistics for physical 
                entities and their constituent hardware and/or software 
                subsystems.

                The Health Monitor statistics present in each row provide 
                information such as the computed health of the indicated 
                subsystem and the number of faults it has experienced."
        ::= { ciscoHealthMonitorMIBObjects 1 }

ciscoHealthMonitorEntry OBJECT-TYPE
        SYNTAX      CiscoHealthMonitorEntry
        MAX-ACCESS  not-accessible 
        STATUS      current
        DESCRIPTION
                "A Health Monitor statistics entry.

                The entPhysicalIndex identifies the physical entity (chassis 
                or container), while the ciscoHealthMonitorSubsysName 
                identifies by name the appropriate subsystem for which these 
                statistics apply.

                If there are other entities such as peer routers or line 
                cards then, in the context of this MIB, these are also 
                defined to be in the same system. If these entities also 
                run an instance of the Health Monitor then the summary 
                information from the distributed Health Monitors is 
                obtained here."
        INDEX { entPhysicalIndex, IMPLIED ciscoHealthMonitorSubsysName }
        ::= { ciscoHealthMonitorTable 1 }


CiscoHealthMonitorEntry ::=
        SEQUENCE {
                -- implied index
                ciscoHealthMonitorSubsysName                 SnmpAdminString,
                -- health and notification level
                ciscoHealthMonitorHealth                    HealthLevel,
                ciscoHealthMonitorHealthNotifyEnable        TruthValue,
                ciscoHealthMonitorHealthNotifyHighThreshold HealthLevel,
                ciscoHealthMonitorHealthNotifyLowThreshold  HealthLevel,
                -- event statistics
                ciscoHealthMonitorCatastrophicFaults         Counter32,
                ciscoHealthMonitorCriticalFaults             Counter32,
                ciscoHealthMonitorHighSeverityFaults         Counter32,
                ciscoHealthMonitorMediumSeverityFaults       Counter32,
                ciscoHealthMonitorLowSeverityFaults          Counter32,
                ciscoHealthMonitorPositiveEvents             Counter32
        }

ciscoHealthMonitorSubsysName OBJECT-TYPE
        SYNTAX      SnmpAdminString (SIZE (1..128))
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
                "A textual string containing the name of the hardware or
                software subsystem. A management station wishing to obtain 
                summary statistics for a physical entity should use a value 
                of 'summary' for this object."
        ::= { ciscoHealthMonitorEntry 1 }

ciscoHealthMonitorHealth OBJECT-TYPE
        SYNTAX      HealthLevel
        UNITS       "0.01 percent"
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "The computed current health of this subsystem on the 
                specified entity.

                This health metric is based on predefined rules that 
                specify how the health should be adjusted in response to
                certain events of varying severity and frequency. As these 
                events are encountered by each subsystem or physical entity, 
                the appropriate rules are applied and the health is modified 
                accordingly."
        ::= { ciscoHealthMonitorEntry 2 }

ciscoHealthMonitorHealthNotifyEnable OBJECT-TYPE
        SYNTAX      TruthValue
        MAX-ACCESS  read-write
        STATUS      current
        DESCRIPTION
                "Enables or disables health level notifications.  When set
                to true(1), the ciscoHealthMonitorHealthLevel notification 
                is enabled. When set to false(0), the 
                ciscoHealthMonitorHealthLevel notification is disabled.

                If such a notification is desired, it is the responsibility of
                the management entity to ensure that the SNMP administrative
                model is configured in such a way as to allow the notification
                to be delivered."
        DEFVAL { false }
        ::= { ciscoHealthMonitorEntry 3 }

ciscoHealthMonitorHealthNotifyHighThreshold OBJECT-TYPE
        SYNTAX      HealthLevel
        UNITS       "0.01 percent"
        MAX-ACCESS  read-write
        STATUS      current
        DESCRIPTION
                "Specifies the health level at which a
                ciscoHealthMonitorHealthLevel notification will be
                generated for the specified subsystem and entity.
                A notification will only be generated if the health
                level had previously reached the low threshold level
                prior to reaching this high threshold level.
                Health levels oscillating within the high and the low
                threshold levels do not generate notifications.
                A health level going from low threshold (or below)
                to high threshold (or above) represents a return
                to normal health for the specified subsystem.
                Set your optimal health level to this threshold."
        DEFVAL { 10000 }
        ::= { ciscoHealthMonitorEntry 4 }

ciscoHealthMonitorHealthNotifyLowThreshold OBJECT-TYPE
        SYNTAX      HealthLevel
        UNITS       "0.01 percent"
        MAX-ACCESS  read-write
        STATUS      current
        DESCRIPTION
                "Specifies the health level at which a
                ciscoHealthMonitorHealthLevel notification will be
                generated for the specified subsystem and entity.
                A notification will only be generated if the health
                level had previously reached the high threshold level
                prior to reaching this low threshold level.
                Health levels oscillating within the high and the low
                threshold levels do not generate notifications.
                A health level going from high threshold (or above)
                to low threshold (or below) represents a deterioration
                of the health for the specified subsystem.
                Set your unacceptable health level to this threshold."
        DEFVAL { 0 }
        ::= { ciscoHealthMonitorEntry 5 }

ciscoHealthMonitorCatastrophicFaults OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "The number of catastrophic faults that have occurred in 
                this subsystem on the specified entity since the system
                was initialized."
        ::= { ciscoHealthMonitorEntry 6 }

ciscoHealthMonitorCriticalFaults OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "The number of critical faults that have occurred in this
                subsystem on the specified entity since the system was
                initialized."
        ::= { ciscoHealthMonitorEntry 7 }

ciscoHealthMonitorHighSeverityFaults OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "The number of high severity faults that have occurred in 
                this subsystem on the specified entity since the system
                was initialized."
        ::= { ciscoHealthMonitorEntry 8 }

ciscoHealthMonitorMediumSeverityFaults OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "The number of medium severity faults that have occurred in
                this subsystem on the specified entity since the system
                was initialized."
        ::= { ciscoHealthMonitorEntry 9 }

ciscoHealthMonitorLowSeverityFaults OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "The number of low severity faults that have occurred in 
                this subsystem on the specified entity since the system
                was initialized."
        ::= { ciscoHealthMonitorEntry 10 }

ciscoHealthMonitorPositiveEvents OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
                "The number of positive events that have occurred in this
                subsystem on the specified entity since the system was
                initialized."
        ::= { ciscoHealthMonitorEntry 11 }


--
-- Notifications
--
ciscoHealthMonitorMIBNotifs       OBJECT IDENTIFIER
        ::= { ciscoHealthMonitorMIB 0}

ciscoHealthMonitorHealthLevel NOTIFICATION-TYPE
        OBJECTS {    
                ciscoHealthMonitorHealth
        }
        STATUS      current
        DESCRIPTION
                "A ciscoHealthMonitorHealthLevel notification is sent when
                the health of a subsystem reaches either the
                ciscoHealthMonitorHealthNotifyLowThreshold or
                ciscoHealthMonitorHealthNotifyHighThreshold threshold
                as described above."
        ::= { ciscoHealthMonitorMIBNotifs 1 }

--
-- Conformance information
--
ciscoHealthMonitorMIBConform      OBJECT IDENTIFIER
        ::= { ciscoHealthMonitorMIB 2 }
ciscoHealthMonitorMIBCompliances  OBJECT IDENTIFIER
        ::= { ciscoHealthMonitorMIBConform 1 }
ciscoHealthMonitorMIBGroups       OBJECT IDENTIFIER
        ::= { ciscoHealthMonitorMIBConform 2 }

--
-- compliance statements
--
ciscoHealthMonitorMIBCompliance MODULE-COMPLIANCE
        STATUS current
        DESCRIPTION
                "The compliance statement for entities which implement the
                Cisco Health Monitor MIB"
        MODULE -- this module
        MANDATORY-GROUPS {
             ciscoHealthMonitorGroup
        }
        ::= { ciscoHealthMonitorMIBCompliances 1 }

--
-- Units of conformance
--
ciscoHealthMonitorGroup OBJECT-GROUP
       OBJECTS {
                ciscoHealthMonitorHealth,
                ciscoHealthMonitorHealthNotifyEnable,
                ciscoHealthMonitorHealthNotifyHighThreshold,
                ciscoHealthMonitorHealthNotifyLowThreshold,
                ciscoHealthMonitorCatastrophicFaults,
                ciscoHealthMonitorCriticalFaults,
                ciscoHealthMonitorHighSeverityFaults,
                ciscoHealthMonitorMediumSeverityFaults,
                ciscoHealthMonitorLowSeverityFaults,
                ciscoHealthMonitorPositiveEvents
        }
        STATUS current
        DESCRIPTION
                "The collection of objects providing health information."
        ::= { ciscoHealthMonitorMIBGroups 1 }

ciscoHealthMonitorMIBNotificationGroup NOTIFICATION-GROUP
        NOTIFICATIONS { 
                ciscoHealthMonitorHealthLevel
        }
        STATUS current
        DESCRIPTION
                "Set of notifications implemented in this module."
        ::= { ciscoHealthMonitorMIBGroups 2 }

END