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Definitions of System-Level Managed Objects for Applications
draft-ietf-applmib-sysapplmib-08

The information below is for an old version of the document that is already published as an RFC.
Document Type
This is an older version of an Internet-Draft that was ultimately published as RFC 2287.
Authors Cheryl D. Krupczak , Jon Saperia
Last updated 2013-03-02 (Latest revision 1997-04-21)
RFC stream Internet Engineering Task Force (IETF)
Intended RFC status Proposed Standard
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IESG IESG state Became RFC 2287 (Proposed Standard)
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draft-ietf-applmib-sysapplmib-08
Definitions of System-Level Managed Objects for Applications

                         April 15, 1997

             <draft-ietf-applmib-sysapplmib-08.txt>

                        Cheryl Krupczak
                   Empire Technologies, Inc.
                     cheryl@empiretech.com

                        Jonathan Saperia
                        BGS Systems Inc.
                    saperia@networks.bgs.com

                      Status of this Memo

 This document is an Internet-Draft.  Internet-Drafts are
 working documents of the Internet Engineering Task Force
 (IETF), its areas, and its working groups.  Note that other
 groups may also distribute working documents as Internet-
 Drafts.

 Internet-Drafts are draft documents valid for a maximum of six
 months and may be updated, replaced, or obsoleted by other
 documents at any time.  It is inappropriate to use Internet-
 Drafts as reference material or to cite them other than as
 ``work in progress.''

 To learn the current status of any Internet-Draft, please
 check the ``1id-abstracts.txt'' listing contained in the
 Internet- Drafts Shadow Directories on ds.internic.net (US
 East Coast), nic.nordu.net (Europe), ftp.isi.edu (US West
 Coast), or munnari.oz.au (Pacific Rim).




 Internet Draft      System Application MIB      April 15, 1997

 Table of Contents

 1 Abstract ..............................................    3
 2 The SNMPv2 Network Management Framework ...............    3
 2.1 Object Definitions ..................................    4
 3 Overview ..............................................    5
 4 Architecture for Application Management ...............    6
 5 The Structure of the MIB ..............................    7
 5.1 System Application Installed Group ..................    7
 5.2 System Application Run Group ........................    8
 5.2.1 sysApplRunTable and sysApplPastRunTable ...........    8
 5.2.2 sysApplElmtRunTable and  sysApplElmtPastRunTable
      ....................................................    9
 5.3 System Application Map Group ........................   10
 6 Definitions ...........................................   11
 7 Implementation Issues .................................   43
 7.1 Implementation with Polling Agents ..................   43
 7.2 sysApplElmtPastRunTable Entry Collisions ............   44
 8 Security Considerations ...............................   45
 9 Acknowledgements ......................................   46
 10 Editor's Address .....................................   46
 11 References ...........................................   46

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 1.  Abstract

 This memo defines a portion of the Management Information Base
 (MIB) for use with network management protocols in the
 Internet community. In particular, it describes a basic set of
 managed objects for fault, configuration and performance
 management of applications from a systems perspective.  More
 specifically, the managed objects are restricted to
 information that can be determined from the system itself and
 which does not require special instrumentation within the
 applications to make the information available.

 This memo does not specify a standard for the Internet
 community.

 2.  The SNMPv2 Network Management Framework

 The SNMPv2 Network Management Framework consists of the
 following major components:

 o    RFC 1902 Structure of Management Information for Version
      2 of the Simple Network Management Protocol (SNMPv2) [2]

 o    RFC 1903 Textual Conventions for Version 2 of the Simple
      Network Management Protocol (SNMPv2) [3]

 o    RFC 1904 Conformance Statements for Version 2 of the
      Simple Network Management Protocol (SNMPv2) [4]

 o    RFC 1905 Protocol Operations for Version 2 of the Simple
      Network Management Protocol (SNMPv2) [5]

 o    RFC 1906 Transport Mappings for Version 2 of the Simple
      Network Management Protocol (SNMPv2) [6]

 o    RFC 1907 Management Information Base for Version 2 of the
      Simple Network Management Protocol (SNMPv2) [7]

 o    RFC 1908 Coexistence between Version 1 and Version 2 of
      the Internet-standard Network Management Framework [8]

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 The Framework permits new objects to be defined for the
 purpose of experimentation and evaluation.

 2.1.  Object Definitions

 Managed objects are accessed via a virtual information store,
 termed the Management Information Base or MIB. Objects in the
 MIB are defined using the subset of Abstract Syntax Notation
 One (ASN.1) [1], defined in the Structure of Management
 Information (SMI)  (See RFC 1902 [2]). In particular, each
 object type is named by an OBJECT IDENTIFIER, an
 administratively assigned name. The object type together with
 an object instance serves to uniquely identify a specific
 instantiation of the object. For human convenience, we often
 use a textual string, termed the object descriptor, to refer
 to the object type.

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 3.  Overview

 The primary purpose of computing technologies is the execution
 of application software. These applications, typically
 specialized collections of executables, files, and
 interprocess communications, exist to solve business,
 scientific or other "problems". The configuration, fault
 detection, performance monitoring and control of application
 software across its life on a host computer is of great
 economic importance. For the purposes of our work, we define
 applications as one or more units of executable code and other
 resources, installed on a single host system that a manager
 may think of as a single object for management purposes.

 The information described by the objects in the System
 Application MIB support configuration, fault, and performance
 management; they represent some of the basic attributes of
 application software from a systems (non-application specific)
 perspective.  The information allows for the description of
 applications as collections of executables and files installed
 and executing on a host computer.

 This draft is concerned primarily with, and defines a model
 for, application information resident on a host computer which
 can be determined from the system itself, and not from the
 individual applications.  This system-level view of
 applications is designed to provide information about software
 applications installed and running on the host system without
 requiring modifications and code additions to the applications
 themselves.  This approach was taken to insure ease and speed
 of implementation, while allowing room for future growth.

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 4.  Architecture for Application Management

 In the area of application management it is fully acknowledged
 and even expected that additional MIB modules will be defined
 over time to provide an even greater level of detail regarding
 applications. This MIB module presents the most general case:
 a set of management objects for providing generic information
 about applications and whose object values can be determined
 from the computer system itself without requiring
 instrumentation within the application.

 A finer-grained level of detail is planned for the future
 "appl MIB" which will be a common set of management objects
 relating to generic applications, but which require some type
 of instrumentation in the application in order to be
 determined.  Since the applmib MIB module will provide a finer
 level of detail, any connection to the sysAppl MIB should be
 made by having references from the more detailed appl MIB back
 to the more generic sysAppl MIB.  Likewise, as application-
 specific MIB modules such as the WWW MIB, etc., are developed
 over time, these more specific MIBs should reference back to
 the more generic MIBs.

 While this MIB module does not attempt to provide every
 detailed piece of information for managing applications, it
 does provide a basic systems-level view of the applications
 and their components on a single host system.

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 5.  The Structure of the MIB

 The System Application MIB structure models application
 packages as a whole, and also models the individual elements
 (files and executables) which collectively form an
 application.  The MIB is structured to model information
 regarding installed application packages and the elements
 which make up each application package. The MIB also models
 activity information on applications (and in turn, their
 components) that are running or have previously run on the
 host system.  In modeling applications and their elements,
 this MIB module provides the necessary link for associating
 executing processes with the applications of which they are a
 part.

 The objects are arranged into the following groups:

     -  System Application Installed Group
            - sysApplInstallPkgTable
            - sysApplInstallElmtTable

     -  System Application Run Group
            - sysApplRunTable
            - sysApplPastRunTable
            - sysApplElmtRunTable
            - sysApplElmtPastRunTable
            - (scalars for restricting table sizes)

     -  System Application Map Group
            - sysApplMapTable

 As can be seen by the arrangement above, for each category,
 the MIB first treats an application package as a whole, and
 then breaks down the package to provide information about each
 of the elements (executable and non-executable files) of the
 package.

 5.1.  System Application Installed Group

 The System Application Installed group consists of two tables.
 Through these two tables, administrators will be able to
 determine which applications have been installed on a system
 and what their constituent components are.  The first table,
 the sysApplInstallPkgTable, lists the application packages

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 installed on a particular host. The second, the
 sysApplInstallElmtTable, provides information regarding the
 executables and non-executable files, or elements, which
 collectively compose an application.

 NOTE: This MIB is intended to work with applications that have
 been installed on a particular host, where "installed" means
 that the existence of the application and the association
 between an application and its component files can be
 discovered without requiring additional instrumentation of the
 application itself.  This may require that certain conventions
 be used, such as using a central software installation
 mechanism or registry, when installing application packages.
 For example, many UNIX systems utilize a "pkgadd" utility to
 track installed application packages, while many PC systems
 utilize a global registry.

 5.2.  System Application Run Group

 This group models activity information for applications that
 have been invoked and are either currently running, or have
 previously run, on the host system.  Likewise, the individual
 elements of an invoked application are also modeled to show
 currently running processes, and processes that have run in
 the past.  This information is modeled using two pairs of
 tables: a pair of tables for currently running applications
 and past run applications, and a pair of tables for the
 currently running elements and the past run elements.  Seven
 scalars are also defined to control the size of the past run
 tables.

 5.2.1.  sysApplRunTable and sysApplPastRunTable

 The sysApplRunTable and the sysApplPastRunTable make up the
 first pair of tables.  The sysApplRunTable contains the
 application instances which are currently running on the host.
 Each time an application is invoked, a new entry is created in
 the sysApplRunTable to provide information about that
 particular invocation of the application.  An entry will
 remain in this table until the application instance
 terminates, at which time the entry will be deleted from the
 sysApplRunTable and placed in the sysApplPastRunTable.

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 The sysApplPastRunTable maintains a history of instances of
 applications which have previously executed on the host.
 Entries to this table are made when an invoked application
 from the sysApplRunTable terminates; the table entry which
 represents the application instance is removed from the
 SysApplRunTable and a corresponding entry is added to the
 sysApplPastRunTable.

 Because the sysApplPastRunTable will continuously grow as
 applications are executed and terminate, two scalars are
 defined to control the aging-out of table entries. The value
 of sysApplPastRunMaxRows specifies the maximum number of
 entries the table may contain, while the
 sysApplPastRunTblTimeLimit specifies the maximum age of the
 table entries.  Oldest entries are removed first.

 It is important to note that the sysApplRunTable and
 sysApplPastRunTable contain entries for each INVOCATION of an
 application. A single application package might be invoked
 multiple times; each invocation is properly recorded by a
 separate entry in the sysApplRunTable.

 In order to implement this group, the agent must be able to
 recognize that an application has been invoked, and be able to
 determine when that invocation terminates.  This poses a
 complex problem since a single application invocation may
 involve numerous processes, some of which may be required to
 remain running throughout the duration of the application,
 others which might come and go.  The sysApplInstallElmtRole
 columnar object in the sysApplInstallElmtTable is meant to
 assist in this task by indicating which elements must be
 running in order for the application to be running, which
 elements are dependent on required elements, etc.  See the
 description of sysApplInstallElmtRole for more details.

 5.2.2.  sysApplElmtRunTable and sysApplElmtPastRunTable

 While the sysApplRunTable and sysApplPastRunTable focus on
 applications as a whole, the sysApplElmtRunTable and
 sysApplElmtPastRunTable provide information regarding an
 application's executable elements, (processes), which are
 either currently executing or have executed in the past.

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 The sysApplElmtRunTable contains an entry for every process
 currently running on the host.  An entry is created in this
 table for each process at the time it is started, and will
 remain in the table until the process terminates.  Note that
 in order to provide complete information on the load on the
 system, this table lists EVERY running process, not just those
 processes that are running as part of an identified
 application.  However, when processes terminate, only
 information from entries corresponding to elements of an
 identified application are moved to the
 sysApplElmtPastRunTable.

 The sysApplElmtPastRunTable maintains a history of instances
 of processes which have previously executed on the host as
 part of an application. When a process from the
 sysApplElmtRunTable terminates, the entry's information is
 moved to this sysApplElmtPastRunTable provided that the
 process was part of an identified application.  If the process
 cannot be associated with any 'parent' application, than it is
 simply removed from the sysApplElmtRunTable.  This allows for
 processes like 'ps' or 'grep' to show up in the
 sysApplElmtRunTable, (where they are consuming resources and
 are thus, "interesting"), but not in the
 sysApplElmtPastRunTable.

 Because the sysApplElmtPastRunTable will continuously grow as
 processes are executed and terminate, two scalars are defined
 to control the aging-out of table entries.  The value of
 sysApplElmtPastRunMaxRows specifies the maximum number of
 entries the table may contain, while the
 sysApplElmtPastRunTblTimeLimit specifies the maximum age of
 the table entries.  Oldest entries are removed first.

 5.3.  System Application Map Group

 The Map group contains a single table, the sysApplMapTable,
 whose sole purpose is to provide a backwards mapping for
 determining the invoked application, installed element, and
 installed application package given a known process
 identification number.

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 6.  Definitions

   SYSAPPL-MIB DEFINITIONS ::= BEGIN

   IMPORTS
       MODULE-IDENTITY, OBJECT-TYPE,
       Unsigned32, TimeTicks, Counter32, Gauge32
           FROM SNMPv2-SMI
       DateAndTime, TEXTUAL-CONVENTION
           FROM SNMPv2-TC
       MODULE-COMPLIANCE, OBJECT-GROUP
           FROM SNMPv2-CONF
       mib-2 FROM RFC1213-MIB;

   -- System Application MIB

   sysApplMIB MODULE-IDENTITY
       LAST-UPDATED "9704150000Z"
       ORGANIZATION "IETF Applications MIB Working Group"
       CONTACT-INFO
             "Cheryl Krupczak (Editor, WG Advisor)
              Postal: Empire Technologies, Inc.
              541 Tenth Street NW
              Suite 169
              Atlanta, GA 30318
              USA
              Phone: (770) 384-0184
              Email: cheryl@empiretech.com

              Jon Saperia (WG Chair)
              Postal:  BGS Systems, Inc.
              One First Avenue
              Waltham, MA 02254-9111
              USA
              Phone: (617) 891-0000
              Email: saperia@networks.bgs.com"
       DESCRIPTION
           "The MIB module defines management objects that model
           applications as collections of executables and files
           installed and executing on a host system.  The MIB
           presents a system-level view of applications; i.e.,
           objects in this MIB are limited to those attributes
           that can typically be obtained from the system itself

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           without adding special instrumentation to the applications."
       ::= { mib-2 9999  }

   sysApplOBJ               OBJECT IDENTIFIER ::= { sysApplMIB 1 }
   sysApplInstalled         OBJECT IDENTIFIER ::= { sysApplOBJ 1 }
   sysApplRun               OBJECT IDENTIFIER ::= { sysApplOBJ 2 }
   sysApplMap               OBJECT IDENTIFIER ::= { sysApplOBJ 3 }
   sysApplNotifications     OBJECT IDENTIFIER ::= { sysApplMIB 2 }
   sysApplConformance       OBJECT IDENTIFIER ::= { sysApplMIB 3 }

   -- Textual Conventions

   RunState ::= TEXTUAL-CONVENTION
       STATUS      current
       DESCRIPTION
           "This TC describes the current execution state of
           a running application or process."
       SYNTAX      INTEGER {
                   running (1),
                   runnable (2), -- waiting for resource (CPU, etc.)
                   waiting (3),  -- waiting for event
                   exiting (4),
                   other (5)     -- other invalid state
                   }

 LongUtf8String ::= TEXTUAL-CONVENTION
         DISPLAY-HINT "1024a"
         STATUS  current
         DESCRIPTION
                 "To facilitate internationalization, this TC
                  represents information taken from the ISO/IEC IS
                  10646-1 character set, encoded as an octet string
                  using the UTF-8 character encoding scheme described
                  in RFC 2044 [10].  For strings in 7-bit US-ASCII,
                  there is no impact since the UTF-8 representation
                  is identical to the US-ASCII encoding."
         SYNTAX  OCTET STRING (SIZE (0..1024))

 Utf8String ::= TEXTUAL-CONVENTION
         DISPLAY-HINT "255a"
         STATUS  current
         DESCRIPTION
                 "To facilitate internationalization, this TC
                  represents information taken from the ISO/IEC IS

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                  10646-1 character set, encoded as an octet string
                  using the UTF-8 character encoding scheme described
                  in RFC 2044 [10].  For strings in 7-bit US-ASCII,
                  there is no impact since the UTF-8 representation
                  is identical to the US-ASCII encoding."
         SYNTAX  OCTET STRING (SIZE (0..255))

   -- sysApplInstalled Group
   -- This group provides information about application packages
   -- that have been installed on the host computer.  The group
   -- contains two tables.  The first, the sysApplInstallPkgTable,
   -- describes the application packages, the second, the
   -- sysApplInstallElmtTable, describes the constituent elements
   -- (files and executables) which compose an application package.
   --
   -- In order to appear in this group, an application and its
   -- component files must be discoverable by the system itself,
   -- possibly through some type of software installation mechanism
   -- or registry.

   -- sysApplInstallPkgTable
   -- The system installed application packages table provides
   -- information on the software packages installed on a system.
   -- These packages may consist of many different files including
   -- executable and non-executable files.

   sysApplInstallPkgTable OBJECT-TYPE
       SYNTAX      SEQUENCE OF SysApplInstallPkgEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "The table listing the software application packages
           installed on a host computer. In order to appear in
           this table, it may be necessary for the application
           to be installed using some type of software
           installation mechanism or global registry so that its
           existence can be detected by the agent implementation."
       ::= { sysApplInstalled 1 }

   sysApplInstallPkgEntry OBJECT-TYPE
       SYNTAX      SysApplInstallPkgEntry
       MAX-ACCESS  not-accessible
       STATUS      current

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       DESCRIPTION
           "The logical row describing an installed application
           package."
       INDEX    { sysApplInstallPkgIndex }
       ::= { sysApplInstallPkgTable 1 }

   SysApplInstallPkgEntry ::= SEQUENCE {
       sysApplInstallPkgIndex               Unsigned32,
       sysApplInstallPkgManufacturer        Utf8String,
       sysApplInstallPkgProductName         Utf8String,
       sysApplInstallPkgVersion             Utf8String,
       sysApplInstallPkgSerialNumber        Utf8String,
       sysApplInstallPkgDate                DateAndTime,
       sysApplInstallPkgLocation            LongUtf8String
   }

   sysApplInstallPkgIndex OBJECT-TYPE
       SYNTAX      Unsigned32 (1..'ffffffff'h)
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "An integer used only for indexing purposes.
           Generally monotonically increasing from 1 as new
           applications are installed.

           The value for each installed application must
           remain constant at least from one re-initialization of
           the network management entity which implements this
           MIB module to the next re-initialization.

           The specific value is meaningful only within a given SNMP
           entity. A sysApplInstallPkgIndex value must not be re-used
           until the next agent entity restart in the event the
           installed application entry is deleted."
       ::= { sysApplInstallPkgEntry 1 }

   sysApplInstallPkgManufacturer OBJECT-TYPE
       SYNTAX      Utf8String
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The Manufacturer of the software application package."
       ::= { sysApplInstallPkgEntry 2 }

   sysApplInstallPkgProductName OBJECT-TYPE

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       SYNTAX      Utf8String
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The name provided to the software application package
           by the Manufacturer."
       ::= { sysApplInstallPkgEntry 3 }

   sysApplInstallPkgVersion OBJECT-TYPE
       SYNTAX      Utf8String
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The version number assigned to the application package
           by the manufacturer of the software."
       ::= { sysApplInstallPkgEntry 4 }

   sysApplInstallPkgSerialNumber OBJECT-TYPE
       SYNTAX      Utf8String
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The serial number of the software assigned by the
           manufacturer."
       ::= { sysApplInstallPkgEntry 5 }

   sysApplInstallPkgDate OBJECT-TYPE
       SYNTAX      DateAndTime
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The date and time this software application was installed
           on the host."
       ::= { sysApplInstallPkgEntry 6 }

   sysApplInstallPkgLocation OBJECT-TYPE
       SYNTAX      LongUtf8String
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The complete path name where the application package
           is installed.  For example, the value would be
           '/opt/MyapplDir' if the application package was installed
           in the /opt/MyapplDir directory."
       ::= { sysApplInstallPkgEntry 7 }

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   -- sysApplInstallElmtTable
   -- The table describing the individual application package
   -- elements (files and executables) installed on the host computer.

   sysApplInstallElmtTable OBJECT-TYPE
       SYNTAX      SEQUENCE OF SysApplInstallElmtEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "This table details the individual application package
           elements (files and executables) which comprise the
           applications defined in the sysApplInstallPkg Table.
           Each entry in this table has an index to the
           sysApplInstallPkg table to identify the application
           package of which it is a part. As a result, there may
           be many entries in this table for each instance in the
           sysApplInstallPkg Table.

           Table entries are indexed by sysApplInstallPkgIndex,
           sysApplInstallElmtIndex to facilitate retrieval of
           all elements associated with a particular installed
           application package."
       ::= { sysApplInstalled 2 }

   sysApplInstallElmtEntry OBJECT-TYPE
       SYNTAX      SysApplInstallElmtEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "The logical row describing an element of an installed
           application.  The element may be an executable or
           non-executable file."
       INDEX    {sysApplInstallPkgIndex, sysApplInstallElmtIndex}
       ::= { sysApplInstallElmtTable 1 }

   SysApplInstallElmtEntry ::= SEQUENCE {
       sysApplInstallElmtIndex                 Unsigned32,
       sysApplInstallElmtName                  Utf8String,
       sysApplInstallElmtType                  INTEGER,
       sysApplInstallElmtDate                  DateAndTime,
       sysApplInstallElmtPath                  LongUtf8String,
       sysApplInstallElmtSizeHigh              Unsigned32,
       sysApplInstallElmtSizeLow               Unsigned32,

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       sysApplInstallElmtRole                  BITS,
       sysApplInstallElmtModifyDate            DateAndTime,
       sysApplInstallElmtCurSizeHigh           Unsigned32,
       sysApplInstallElmtCurSizeLow            Unsigned32

   }

   sysApplInstallElmtIndex OBJECT-TYPE
       SYNTAX      Unsigned32 (1..'ffffffff'h)
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "An arbitrary integer used for indexing.  The value
           of this index is unique among all rows in this table
           that exist or have existed since the last agent restart."
       ::= { sysApplInstallElmtEntry 1 }

   sysApplInstallElmtName OBJECT-TYPE
       SYNTAX      Utf8String
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The name of this element which is contained in the
           application."
       ::= { sysApplInstallElmtEntry 2 }

   sysApplInstallElmtType OBJECT-TYPE
       SYNTAX      INTEGER {
                   unknown(1),
                   nonexecutable(2),
                   operatingSystem(3),  -- executable
                   deviceDriver(4),     -- executable
                   application(5)       -- executable
                   }
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The type of element that is part of the installed
           application."
       ::= { sysApplInstallElmtEntry 3 }

   sysApplInstallElmtDate OBJECT-TYPE
       SYNTAX      DateAndTime
       MAX-ACCESS  read-only

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       STATUS      current
       DESCRIPTION
           "The date and time that this component was installed on
           the system."
       ::= { sysApplInstallElmtEntry 4 }

   sysApplInstallElmtPath OBJECT-TYPE
       SYNTAX      LongUtf8String
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The full directory path where this element is installed.
           For example, the value would be '/opt/EMPuma/bin' for an
           element installed in the directory '/opt/EMPuma/bin'."
       ::= { sysApplInstallElmtEntry 5}

   sysApplInstallElmtSizeHigh OBJECT-TYPE
       SYNTAX      Unsigned32
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The installed file size in 2^32 byte blocks. This is
           the size of the file on disk immediately after installation.

           For example, for a file with a total size of 4,294,967,296
           bytes, this variable would have a value of 1; for a file
           with a total size of 4,294,967,295 bytes this variable
           would be 0."
       ::= { sysApplInstallElmtEntry 6 }

   sysApplInstallElmtSizeLow OBJECT-TYPE
       SYNTAX      Unsigned32
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The installed file size modulo 2^32 bytes.  This is
           the size of the file on disk immediately after installation.

           For example, for a file with a total size of 4,294,967,296
           bytes this variable would have a value of 0; for a file with
           a total size of 4,294,967,295 bytes this variable would be
           4,294,967,295."
       ::= { sysApplInstallElmtEntry 7 }

   sysApplInstallElmtRole  OBJECT-TYPE

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       SYNTAX      BITS {
                   executable(0),
                      -- An application may have one or
                      -- more executable elements.  The rest of the
                      -- bits have no meaning if the element is not
                      -- executable.
                   exclusive(1),
                      -- Only one copy of an exclusive element may be
                      -- running per invocation of the running
                      -- application.
                   primary(2),
                      -- The primary executable.  The execution of
                      -- this element constitutes an invocation of
                      -- the application.  This is used by the agent
                      -- implementation to determine the initiation of
                      -- an application.
                   required(3),
                      -- An application may have zero or more required
                      -- elements. All required elements must be running
                      -- in order for the application to be judged to be
                      -- running and healthy.
                   dependent(4),
                      -- An application may have zero or more
                      -- dependent elements. Dependent elements may
                      -- not be running unless required elements are.
                   unknown(5)
                      -- Default value for the case when an operator
                      -- has not yet assigned one of the other values.
                      -- When set, bits 1, 2, 3, and 4 have no meaning.
                   }
       MAX-ACCESS  read-write
       STATUS      current
       DESCRIPTION
           "An operator assigned value used in the determination of
           application status. This value is used by the agent to
           determine both the mapping of started processes to the
           initiation of an application, as well as to allow for a
           determination of application health. The default value,
           unknown(5), is used when an operator has not yet assigned
           one of the other values.  If unknown(5) is set, bits
           1 - 4 have no meaning."
       DEFVAL { { unknown } }
       ::= { sysApplInstallElmtEntry 8 }

   sysApplInstallElmtModifyDate OBJECT-TYPE

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       SYNTAX      DateAndTime
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The date and time that this element was last modified.
           Modification of the sysApplInstallElmtRole columnar
           object does NOT constitute a modification of the element
           itself and should not affect the value of this object."
       ::= { sysApplInstallElmtEntry 9 }

   sysApplInstallElmtCurSizeHigh OBJECT-TYPE
       SYNTAX      Unsigned32
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The current file size in 2^32 byte blocks.
           For example, for a file with a total size of 4,294,967,296
           bytes, this variable would have a value of 1; for a file
           with a total size of 4,294,967,295 bytes this variable
           would be 0."
       ::= { sysApplInstallElmtEntry 10 }

   sysApplInstallElmtCurSizeLow OBJECT-TYPE
       SYNTAX      Unsigned32
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The current file size modulo 2^32 bytes.
           For example, for a file with a total size of 4,294,967,296
           bytes this variable would have a value of 0; for a file with
           a total size of 4,294,967,295 bytes this variable would be
           4,294,967,295."
       ::= { sysApplInstallElmtEntry 11 }

   -- sysApplRun Group
   -- This group models activity information for applications
   -- that have been invoked and are either currently running,
   -- or have previously run on the host system.  Likewise,
   -- the individual elements of an invoked application are
   -- also modeled to show currently running processes, and
   -- processes that have run in the past.

   -- sysApplRunTable

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   -- The sysApplRunTable contains the application instances
   -- which are currently running on the host.  Since a single
   -- application might be invoked multiple times, an entry is
   -- added to this table for each INVOCATION of an application.
   -- The table is indexed by sysApplInstallPkgIndex, sysApplRunIndex
   -- to enable managers to easily locate all invocations of
   -- a particular application package.

   sysApplRunTable OBJECT-TYPE
       SYNTAX      SEQUENCE OF SysApplRunEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "The table describes the applications which are executing
           on the host.  Each time an application is invoked,
           an entry is created in this table. When an application ends,
           the entry is removed from this table and a corresponding
                   entry is created in the SysApplPastRunTable.

           The table is indexed by sysApplInstallPkgIndex,
           sysApplRunIndex to enable managers to easily locate all
           invocations of a particular application package."
       ::= { sysApplRun 1 }

   sysApplRunEntry OBJECT-TYPE
       SYNTAX      SysApplRunEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "The logical row describing an application which is
           currently running on this host."
       INDEX    { sysApplInstallPkgIndex, sysApplRunIndex }
       ::= { sysApplRunTable   1 }

   SysApplRunEntry ::= SEQUENCE {
       sysApplRunIndex                         Unsigned32,
       sysApplRunStarted                       DateAndTime,
       sysApplRunCurrentState                  RunState
   }

   sysApplRunIndex OBJECT-TYPE
       SYNTAX      Unsigned32 (1..'ffffffff'h)
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION

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           "Part of the index for this table. An arbitrary
           integer used only for indexing purposes. Generally
           monotonically increasing from 1 as new applications are
           started on the host, it uniquely identifies application
           invocations.

           The numbering for this index increases by 1 for each
           INVOCATION of an application, regardless of which
           installed application package this entry represents a
           running instance of.

           An example of the indexing for a couple of entries is
           shown below.

                         :
                    sysApplRunStarted.17.14
                    sysApplRunStarted.17.63
                    sysApplRunStarted.18.13
                         :

           In this example, the agent has observed 12 application
           invocations when the application represented by entry 18
           in the sysApplInstallPkgTable is invoked.  The next
           invocation detected by the agent is an invocation of
           installed application package 17.  Some time later,
           installed application 17 is invoked a second time.

           NOTE: this index is not intended to reflect a real-time
           (wall clock time) ordering of application invocations;
           it is merely intended to uniquely identify running
           instances of applications.  Although the
           sysApplInstallPkgIndex is included in the INDEX clause
           for this table, it serves only to ease searching of
           this table by installed application and does not
           contribute to uniquely identifying table entries."
       ::= { sysApplRunEntry 1 }

   sysApplRunStarted OBJECT-TYPE
       SYNTAX      DateAndTime
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The date and time that the application was started."
       ::= { sysApplRunEntry 2 }

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   sysApplRunCurrentState OBJECT-TYPE
       SYNTAX      RunState
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The current state of the running application. The
           possible values are running(1), runnable(2) but waiting
           for a resource such as CPU, waiting(3) for an event,
           exiting(4), or other(5)."
       ::= { sysApplRunEntry 3 }

   -- sysApplPastRunTable
   -- The sysApplPastRunTable provides a history of applications
   -- previously run on the host computer. Entries are removed from
   -- the sysApplRunTable and corresponding entries are added to this
   -- table when an application becomes inactive. Entries remain in
   -- this table until they are aged out when either the table size
   -- reaches a maximum as determined by the sysApplPastRunMaxRows,
   -- or when an entry has aged to exceed a time limit as set be
   -- sysApplPastRunTblTimeLimit.
   --
   -- When aging out entries, the oldest entry, as determined by
   -- the value of sysApplPastRunTimeEnded, will be removed first.

   sysApplPastRunTable OBJECT-TYPE
       SYNTAX      SEQUENCE OF SysApplPastRunEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "A history of the applications that have previously run
           on the host computer.  An entry's information is moved to
           this table from the sysApplRunTable when the invoked
           application represented by the entry ceases to be running.

           Entries remain in this table until they are aged out when
           either the table size reaches a maximum as determined by
           the sysApplPastRunMaxRows, or when an entry has aged to
           exceed a time limit as set by sysApplPastRunTblTimeLimit.

           Entries in this table are indexed by sysApplInstallPkgIndex,
           sysApplPastRunIndex to facilitate retrieval of all past
           run invocations of a particular installed application."
       ::= { sysApplRun 2 }

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   sysApplPastRunEntry OBJECT-TYPE
       SYNTAX      SysApplPastRunEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "The logical row describing an invocation of an application
           which was previously run and has terminated.  The entry
           is basically copied from the sysApplRunTable when the
           application instance terminates.  Hence, the entry's
           value for sysApplPastRunIndex is the same as its value was
           for sysApplRunIndex."
       INDEX    { sysApplInstallPkgIndex, sysApplPastRunIndex }
       ::= { sysApplPastRunTable   1 }

   SysApplPastRunEntry ::= SEQUENCE {
       sysApplPastRunIndex                     Unsigned32,
       sysApplPastRunStarted                   DateAndTime,
       sysApplPastRunExitState                 INTEGER,
       sysApplPastRunTimeEnded                 DateAndTime
   }

   sysApplPastRunIndex OBJECT-TYPE
       SYNTAX      Unsigned32 (1..'ffffffff'h)
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "Part of the index for this table. An integer
           matching the value of the removed sysApplRunIndex
           corresponding to this row."
       ::= { sysApplPastRunEntry 1 }

   sysApplPastRunStarted OBJECT-TYPE
       SYNTAX      DateAndTime
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The date and time that the application was started."
       ::= { sysApplPastRunEntry 2 }

   sysApplPastRunExitState OBJECT-TYPE
       SYNTAX      INTEGER {
                   complete (1), -- normal exit at sysApplRunTimeEnded
                   failed (2),   -- abnormal exit
                   other (3)
                   }

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       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
         "The state of the application instance when it terminated."
       ::= { sysApplPastRunEntry 3 }

   sysApplPastRunTimeEnded OBJECT-TYPE
       SYNTAX      DateAndTime
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The DateAndTime the application instance was determined
           to be no longer running."
       ::= { sysApplPastRunEntry 4 }

   -- sysApplElmtRunTable
   -- The sysApplElmtRunTable contains an entry for each process that
   -- is currently running on the host.  An entry is created in
   -- this table for each process at the time it is started, and will
   -- remain in the table until the process terminates.
   --
   -- The table is indexed by sysApplElmtRunInstallPkg,
   -- sysApplElmtRunInvocID, and sysApplElmtRunIndex to make it easy
   -- to locate all running elements of a particular invoked application
   -- which has been installed on the system.

   sysApplElmtRunTable OBJECT-TYPE
       SYNTAX      SEQUENCE OF SysApplElmtRunEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "The table describes the processes which are
           currently executing on the host system. Each entry
           represents a running process and is associated with
           the invoked application of which that process is a part, if
           possible.  This table contains an entry for every process
           currently running on the system, regardless of whether its
           'parent' application can be determined.  So, for example,
           processes like 'ps' and 'grep' will have entries though they
           are not associated with an installed application package.

           Because a running application may involve
           more than one executable, it is possible to have
           multiple entries in this table for each application.

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           Entries are removed from this table when the process
           terminates.

           The table is indexed by sysApplElmtRunInstallPkg,
           sysApplElmtRunInvocID, and sysApplElmtRunIndex to
           facilitate the retrieval of all running elements of a
           particular invoked application which has been installed on
           the system."
       ::= { sysApplRun 3 }

   sysApplElmtRunEntry OBJECT-TYPE
       SYNTAX      SysApplElmtRunEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "The logical row describing a process currently
           running on this host.  When possible, the entry is
           associated with the invoked application of which it
           is a part."
       INDEX    { sysApplElmtRunInstallPkg, sysApplElmtRunInvocID,
                  sysApplElmtRunIndex }
       ::= { sysApplElmtRunTable   1 }

   SysApplElmtRunEntry ::= SEQUENCE {
       sysApplElmtRunInstallPkg        Unsigned32,
       sysApplElmtRunInvocID           Unsigned32,
       sysApplElmtRunIndex             Unsigned32,
       sysApplElmtRunInstallID         Unsigned32,
       sysApplElmtRunTimeStarted       DateAndTime,
       sysApplElmtRunState             RunState,
       sysApplElmtRunName              LongUtf8String,
       sysApplElmtRunParameters        Utf8String,
       sysApplElmtRunCPU               TimeTicks,
       sysApplElmtRunMemory            Gauge32,
       sysApplElmtRunNumFiles          Gauge32,
       sysApplElmtRunUser              Utf8String
   }

   sysApplElmtRunInstallPkg OBJECT-TYPE
       SYNTAX      Unsigned32 (0..'ffffffff'h)
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "Part of the index for this table, this value
           identifies the installed software package for

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           the application of which this process is a part.
           Provided that the process's 'parent' application can be
           determined, the value of this object is the same
           value as the sysApplInstallPkgIndex for the
           entry in the sysApplInstallPkgTable that corresponds
           to the installed application of which this process
           is a part.

           If, however, the 'parent' application cannot be
           determined, (for example the process is not part
           of a particular installed application), the value
           for this object is then '0', signifying that this
           process cannot be related back to an application,
           and in turn, an installed software package."
       ::= { sysApplElmtRunEntry 1 }

   sysApplElmtRunInvocID OBJECT-TYPE
       SYNTAX      Unsigned32 (0..'ffffffff'h)
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "Part of the index for this table, this value
           identifies the invocation of an application of which
           this process is a part.  Provided that the 'parent'
           application can be determined, the value of this object
           is the same value as the sysApplRunIndex for the
           corresponding application invocation in the
           sysApplRunTable.

           If, however, the 'parent' application cannot be
           determined, the value for this object is then '0',
           signifying that this process cannot be related back
           to an invocation of an application in the
           sysApplRunTable."
       ::= { sysApplElmtRunEntry 2 }

   sysApplElmtRunIndex OBJECT-TYPE
       SYNTAX      Unsigned32 (0..'ffffffff'h)
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "Part of the index for this table.  A unique value
           for each process running on the host.  Wherever
           possible, this should be the system's native, unique
           identification number."

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       ::= { sysApplElmtRunEntry 3 }

   sysApplElmtRunInstallID OBJECT-TYPE
       SYNTAX      Unsigned32 (0..'ffffffff'h)
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The index into the sysApplInstallElmtTable. The
           value of this object is the same value as the
           sysApplInstallElmtIndex for the application element
           of which this entry represents a running instance.
           If this process cannot be associated to an installed
           executable, the value should be '0'."
       ::= { sysApplElmtRunEntry 4 }

   sysApplElmtRunTimeStarted OBJECT-TYPE
       SYNTAX      DateAndTime
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The time the process was started."
       ::= { sysApplElmtRunEntry 5 }

   sysApplElmtRunState OBJECT-TYPE
       SYNTAX      RunState
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The current state of the running process. The
           possible values are running(1), runnable(2) but waiting
           for a resource such as CPU, waiting(3) for an event,
           exiting(4), or other(5)."
       ::= { sysApplElmtRunEntry 6 }

   sysApplElmtRunName OBJECT-TYPE
       SYNTAX      LongUtf8String
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The full path and filename of the process.
           For example, '/opt/MYYpkg/bin/myyproc' would
           be returned for process 'myyproc' whose execution
           path is '/opt/MYYpkg/bin/myyproc'."
       ::= { sysApplElmtRunEntry 7 }

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   sysApplElmtRunParameters OBJECT-TYPE
       SYNTAX      Utf8String
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The starting parameters for the process."
   ::= { sysApplElmtRunEntry 8 }

   sysApplElmtRunCPU OBJECT-TYPE
       SYNTAX      TimeTicks
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
            "The number of centi-seconds of the total system's
            CPU resources consumed by this process.  Note that
            on a multi-processor system, this value may
            have been incremented by more than one centi-second
            in one centi-second of real (wall clock) time."
       ::= { sysApplElmtRunEntry 9 }

   sysApplElmtRunMemory OBJECT-TYPE
       SYNTAX      Gauge32
       UNITS       "Kbytes"
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The total amount of real system memory measured in
           Kbytes currently allocated to this process."
       ::= { sysApplElmtRunEntry 10 }

   sysApplElmtRunNumFiles OBJECT-TYPE
       SYNTAX      Gauge32
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The number of files currently open by the
           process.  Transport connections (sockets)
           should NOT be included in the calculation of
           this value."
       ::= { sysApplElmtRunEntry 11 }

   sysApplElmtRunUser OBJECT-TYPE
       SYNTAX      Utf8String
       MAX-ACCESS  read-only

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       STATUS      current
       DESCRIPTION
           "The process owner's login name (e.g. root)."
       ::= { sysApplElmtRunEntry 12 }

   -- sysApplElmtPastRunTable
   -- The sysApplElmtPastRunTable maintains a history of
   -- processes which have previously executed on
   -- the host as part of an application. Upon termination
   -- of a process, the entry representing the process is removed from
   -- the sysApplElmtRunTable and a corresponding entry is created in
   -- this table provided that the process was part of an
   -- identifiable application.  If the process could not be associated
   -- with an invoked application, no corresponding entry is created.
   -- Hence, whereas the sysApplElmtRunTable contains an entry for
   -- every process currently executing on the system, the
   -- sysApplElmtPastRunTable only contains entries for processes
   -- that previously executed as part of an invoked application.
   --
   -- Entries remain in this table until they are aged out when
   -- either the number of entries in the table reaches a
   -- maximum as determined by sysApplElmtPastRunMaxRows, or
   -- when an entry has aged to exceed a time limit as set by
   -- sysApplElmtPastRunTblTimeLimit.  When aging out entries,
   -- the oldest entry, as determined by the value of
   -- sysApplElmtPastRunTimeEnded, will be removed first.
   --
   -- The table is indexed by sysApplInstallPkgIndex (from the
   -- sysApplInstallPkgTable), sysApplElmtPastRunInvocID, and
   -- sysApplElmtPastRunIndex to make it easy to locate all
   -- previously executed processes of a particular invoked application
   -- that has been installed on the system.

   sysApplElmtPastRunTable OBJECT-TYPE
       SYNTAX      SEQUENCE OF SysApplElmtPastRunEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "The table describes the processes which have previously
           executed on the host system as part of an application.
           Each entry represents a process which has previously
           executed and is associated with the invoked application
           of which it was a part.  Because an invoked application
           may involve more than one executable, it is possible

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           to have multiple entries in this table for
           each application invocation. Entries are added
           to this table when the corresponding process in the
           sysApplElmtRun Table terminates.

           Entries remain in this table until they are aged out when
           either the number of entries in the table reaches a
           maximum as determined by sysApplElmtPastRunMaxRows, or
           when an entry has aged to exceed a time limit as set by
           sysApplElmtPastRunTblTimeLimit.  When aging out entries,
           the oldest entry, as determined by the value of
           sysApplElmtPastRunTimeEnded, will be removed first.

           The table is indexed by sysApplInstallPkgIndex (from the
           sysApplInstallPkgTable), sysApplElmtPastRunInvocID,
           and sysApplElmtPastRunIndex to make it easy to locate all
           previously executed processes of a particular invoked
           application that has been installed on the system."
       ::= { sysApplRun 4 }

   sysApplElmtPastRunEntry OBJECT-TYPE
       SYNTAX      SysApplElmtPastRunEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "The logical row describing a process which was
           previously executed on this host as part of an
           installed application.  The entry is basically copied
           from the sysApplElmtRunTable when the process
           terminates.  Hence, the entry's value for
           sysApplElmtPastRunIndex is the same as its value
           was for sysApplElmtRunIndex.  Note carefully: only those
           processes which could be associated with an
           identified application are included in this table."
       INDEX    { sysApplInstallPkgIndex, sysApplElmtPastRunInvocID,
                  sysApplElmtPastRunIndex }
       ::= { sysApplElmtPastRunTable   1 }

   SysApplElmtPastRunEntry ::= SEQUENCE {
       sysApplElmtPastRunInvocID           Unsigned32,
       sysApplElmtPastRunIndex             Unsigned32,
       sysApplElmtPastRunInstallID         Unsigned32,
       sysApplElmtPastRunTimeStarted       DateAndTime,
       sysApplElmtPastRunTimeEnded         DateAndTime,
       sysApplElmtPastRunExitState         INTEGER,

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       sysApplElmtPastRunName              LongUtf8String,
       sysApplElmtPastRunParameters        Utf8String,
       sysApplElmtPastRunCPU               TimeTicks,
       sysApplElmtPastRunMemory            Unsigned32,
       sysApplElmtPastRunNumFiles          Unsigned32,
       sysApplElmtPastRunUser              Utf8String
   }

   sysApplElmtPastRunInvocID OBJECT-TYPE
       SYNTAX      Unsigned32 (1..'ffffffff'h)
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "Part of the index for this table, this value
           identifies the invocation of an application of which
           the process represented by this entry was a part.
           The value of this object is the same value as the
           sysApplRunIndex for the corresponding application
           invocation in the sysApplRunTable.  If the invoked
           application as a whole has terminated, it will be the
           same as the sysApplPastRunIndex."
       ::= { sysApplElmtPastRunEntry 1 }

   sysApplElmtPastRunIndex OBJECT-TYPE
       SYNTAX      Unsigned32 (0..'ffffffff'h)
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "Part of the index for this table. An integer
           assigned by the agent equal to the corresponding
           sysApplElmtRunIndex which was removed from the
           sysApplElmtRunTable and moved to this table
           when the element terminated.

           Note: entries in this table are indexed by
           sysApplElmtPastRunInvocID, sysApplElmtPastRunIndex.
           The possibility exists, though unlikely, of a
           collision occurring by a new entry which was run
           by the same invoked application (InvocID), and
           was assigned the same process identification number
           (ElmtRunIndex) as an element which was previously
           run by the same invoked application.

           Should this situation occur, the new entry replaces
           the old entry.

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           See Section: 'Implementation Issues - sysApplElmtPastRunTable
           Entry Collisions' for the conditions that would have to occur
           in order for a collision to occur."
       ::= { sysApplElmtPastRunEntry 2 }

   sysApplElmtPastRunInstallID OBJECT-TYPE
       SYNTAX      Unsigned32 (1..'ffffffff'h)
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The index into the installed element table. The
           value of this object is the same value as the
           sysApplInstallElmtIndex for the application element
           of which this entry represents a previously executed
           process."
       ::= { sysApplElmtPastRunEntry 3 }

   sysApplElmtPastRunTimeStarted OBJECT-TYPE
       SYNTAX      DateAndTime
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The time the process was started."
       ::= { sysApplElmtPastRunEntry 4 }

   sysApplElmtPastRunTimeEnded OBJECT-TYPE
       SYNTAX      DateAndTime
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The time the process ended."
       ::= { sysApplElmtPastRunEntry 5 }

   sysApplElmtPastRunExitState OBJECT-TYPE
       SYNTAX      INTEGER {
                   completed (1),
                   failed (2),
                   other (3)
                   }
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The state of the process when it exited."

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       ::= { sysApplElmtPastRunEntry 6 }

   sysApplElmtPastRunName OBJECT-TYPE
       SYNTAX      LongUtf8String
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The full path and filename of the process.
           For example, '/opt/MYYpkg/bin/myyproc' would
           be returned for process 'myyproc' whose execution
           path was '/opt/MYYpkg/bin/myyproc'."
       ::= { sysApplElmtPastRunEntry 7 }

   sysApplElmtPastRunParameters OBJECT-TYPE
       SYNTAX      Utf8String
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The starting parameters for the process."
       ::= { sysApplElmtPastRunEntry 8 }

   sysApplElmtPastRunCPU OBJECT-TYPE
       SYNTAX      TimeTicks
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
            "The last known number of centi-seconds of the total
            system's CPU resources consumed by this process.
            Note that on a multi-processor system, this value may
            increment by more than one centi-second in one
            centi-second of real (wall clock) time."
       ::= { sysApplElmtPastRunEntry 9 }

   sysApplElmtPastRunMemory OBJECT-TYPE
       SYNTAX      Unsigned32 (0..'ffffffff'h)
       UNITS       "Kbytes"
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The last known total amount of real system memory
           measured in Kbytes allocated to this process before it
           terminated."
       ::= { sysApplElmtPastRunEntry 10 }

   sysApplElmtPastRunNumFiles OBJECT-TYPE

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       SYNTAX      Unsigned32 (0..'ffffffff'h)
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The last known number of files open by the
           process before it terminated.  Transport
           connections (sockets) should NOT be included in
           the calculation of this value."
       ::= { sysApplElmtPastRunEntry 11 }

   sysApplElmtPastRunUser OBJECT-TYPE
       SYNTAX      Utf8String
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The process owner's login name (e.g. root)."
       ::= { sysApplElmtPastRunEntry 12 }

   -- Additional Scalar objects to control table sizes

   sysApplPastRunMaxRows OBJECT-TYPE
       SYNTAX      Unsigned32 (0..'ffffffff'h)
       MAX-ACCESS  read-write
       STATUS      current
       DESCRIPTION
           "The maximum number of entries allowed in the
           sysApplPastRunTable.  Once the number of rows in
           the sysApplPastRunTable reaches this value, the
           management subsystem will remove the oldest entry
           in the table to make room for the new entry to be added.
           Entries will be removed on the basis of oldest
           sysApplPastRunTimeEnded value first.

           This object may be used to control the amount of
           system resources that can used for sysApplPastRunTable
           entries. A conforming implementation should attempt
           to support the default value, however, a lesser value
           may be necessary due to implementation-dependent issues
           and resource availability."
       DEFVAL      { 500 }
       ::= { sysApplRun 5 }

   sysApplPastRunTableRemItems OBJECT-TYPE
       SYNTAX      Counter32

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       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "A counter of the number of entries removed from
           the sysApplPastRunTable because of table size limitations
           as set in sysApplPastRunMaxRows.  This counter is the
           number of entries the management subsystem has had to
           remove in order to make room for new entries (so as not
           to exceed the limit set by sysApplPastRunMaxRows) since
           the last initialization of the management subsystem."
       ::= { sysApplRun 6 }

   sysApplPastRunTblTimeLimit OBJECT-TYPE
       SYNTAX      Unsigned32 (0..'ffffffff'h)
       UNITS       "seconds"
       MAX-ACCESS  read-write
       STATUS      current
       DESCRIPTION
           "The maximum time in seconds which an entry in the
            sysApplPastRunTable may exist before it is removed.
            Any entry that is older than this value will be
            removed (aged out) from the table.

            Note that an entry may be aged out prior to reaching
            this time limit if it is the oldest entry in the
            table and must be removed to make space for a new
            entry so as to not exceed sysApplPastRunMaxRows."
       DEFVAL      { 7200 }
       ::= { sysApplRun 7 }

   sysApplElemPastRunMaxRows OBJECT-TYPE
       SYNTAX      Unsigned32 (0..'ffffffff'h)
       MAX-ACCESS  read-write
       STATUS      current
       DESCRIPTION
           "The maximum number of entries allowed in the
           sysApplElmtPastRunTable.  Once the number of rows in
           the sysApplElmtPastRunTable reaches this value,
           the management subsystem will remove the oldest entry
           to make room for the new entry to be added.  Entries
           will be removed on the basis of oldest
           sysApplElmtPastRunTimeEnded value first.

           This object may be used to control the amount of
           system resources that can used for sysApplElemPastRunTable

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           entries. A conforming implementation should attempt
           to support the default value, however, a lesser value
           may be necessary due to implementation-dependent issues
           and resource availability."
       DEFVAL      { 500 }
       ::= { sysApplRun 8 }

   sysApplElemPastRunTableRemItems OBJECT-TYPE
       SYNTAX      Counter32
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "A counter of the number of entries removed from the
           sysApplElemPastRunTable because of table size limitations
           as set in sysApplElemPastRunMaxRows.  This counter is the
           number of entries the management subsystem has had to
           remove in order to make room for new entries (so as not
           to exceed the limit set by sysApplElemPastRunMaxRows) since
           the last initialization of the management subsystem."
       ::= { sysApplRun 9 }

   sysApplElemPastRunTblTimeLimit OBJECT-TYPE
       SYNTAX      Unsigned32 (0..'ffffffff'h)
       UNITS       "seconds"
       MAX-ACCESS  read-write
       STATUS      current
       DESCRIPTION
           "The maximum time in seconds which an entry in the
            sysApplElemPastRunTable may exist before it is removed.
            Any entry that is older than this value will be
            removed (aged out) from the table.

            Note that an entry may be aged out prior to reaching
            this time limit if it is the oldest entry in the
            table and must be removed to make space for a new
            entry so as to not exceed sysApplElemPastRunMaxRows."
       DEFVAL      { 7200 }
       ::= { sysApplRun 10 }

   sysApplAgentPollInterval  OBJECT-TYPE
       SYNTAX      Unsigned32 (0..'ffffffff'h)
       UNITS       "seconds"
       MAX-ACCESS  read-write
       STATUS      current
       DESCRIPTION

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           "The minimum interval in seconds that the management
           subsystem implementing this MIB will poll the status
           of the managed resources. Because of the non-trivial
           effort involved in polling the managed resources,
           and because the method for obtaining the status of
           the managed resources is implementation-dependent,
           a conformant implementation may chose a lower bound
           greater than 0.

           A value of 0 indicates that there is no delay
           in the passing of information from the managed
           resources to the agent."
       DEFVAL      { 60 }
       ::= { sysApplRun 11 }

   -- sysApplMap Group
   -- This group contains a table, the sysApplMapTable,
   -- whose sole purpose is to provide a 'backwards'
   -- mapping so that, given a known sysApplElmtRunIndex
   -- (process identification number), the corresponding invoked
   -- application (sysApplRunIndex), installed element
   -- (sysApplInstallElmtIndex), and installed application
   -- package (sysApplInstallPkgIndex) can be quickly determined.
   --
   -- The table will contain one entry for each process
   -- currently running on the system.
   --
   -- A backwards mapping is extremely useful since the tables
   -- in this MIB module are typically indexed with the
   -- installed application package (sysApplInstallPkgIndex)
   -- as the primary key, and on down as required by the
   -- specific table, with the process ID number (sysApplElmtRunIndex)
   -- being the least significant key.
   --
   -- It is expected that management applications will use
   -- this mapping table by doing a 'GetNext' operation with
   -- the known process ID number (sysApplElmtRunIndex) as the partial
   -- instance identifier.  Assuming that there is an entry for
   -- the process, the result should return a single columnar value,
   -- the sysApplMapInstallPkgIndex, with the sysApplElmtRunIndex,
   -- sysApplRunIndex, and sysApplInstallElmtIndex contained in the
   -- instance identifier for the returned MIB object value.
   --
   -- NOTE: if the process can not be associated back to an

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   -- invoked application installed on the system, than the
   -- value returned for the columnar value sysApplMapInstallPkgIndex
   -- will be '0' and the instance portion of the object-identifier
   -- will be the process ID number (sysApplElmtRunIndex) followed
   -- by 0.0.

   sysApplMapTable OBJECT-TYPE
       SYNTAX      SEQUENCE OF SysApplMapEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "The sole purpose of this table is to provide a
           'backwards' mapping so that, given a known
           sysApplElmtRunIndex (process identification number),
           the corresponding invoked application (sysApplRunIndex),
           installed element (sysApplInstallElmtIndex), and
           installed application package (sysApplInstallPkgIndex)
           can be quickly determined.

           This table will contain one entry for each process
           that is currently executing on the system.

           It is expected that management applications will use
           this mapping table by doing a 'GetNext' operation with
           the known process ID number (sysApplElmtRunIndex) as the
           partial instance identifier.  Assuming that there is an
           entry for the process, the result should return a single
           columnar value, the sysApplMapInstallPkgIndex, with the
           sysApplElmtRunIndex, sysApplRunIndex, and
           sysApplInstallElmtIndex contained in the instance identifier
           for the returned MIB object value.

           NOTE: if the process can not be associated back to an
           invoked application installed on the system, than the
           value returned for the columnar value
           sysApplMapInstallPkgIndex will be '0' and the instance
           portion of the object-identifier will be the process ID
           number (sysApplElmtRunIndex) followed by 0.0."
       ::= { sysApplMap 1 }

   sysApplMapEntry OBJECT-TYPE
       SYNTAX      SysApplMapEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION

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           "A logical row representing a process currently running
            on the system.  This entry provides the index mapping from
            process identifier, back to the invoked application,
            installed element, and finally, the installed application
            package.  The entry includes only one accessible columnar
            object, the sysApplMapInstallPkgIndex, but the
            invoked application and installed element can be
            determined from the instance identifier since they form
            part of the index clause."
       INDEX  { sysApplElmtRunIndex, sysApplElmtRunInvocID,
                sysApplMapInstallElmtIndex }
       ::= { sysApplMapTable 1 }

   SysApplMapEntry ::= SEQUENCE {
       sysApplMapInstallElmtIndex    Unsigned32,
       sysApplMapInstallPkgIndex     Unsigned32
   }

   sysApplMapInstallElmtIndex OBJECT-TYPE
       SYNTAX      Unsigned32 (0..'ffffffff'h)
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "The index into the sysApplInstallElmtTable. The
           value of this object is the same value as the
           sysApplInstallElmtIndex for the application element
           of which this entry represents a running instance.
           If this process cannot be associated to an installed
           executable, the value should be '0'."
       ::= { sysApplMapEntry 1 }

   sysApplMapInstallPkgIndex OBJECT-TYPE
       SYNTAX      Unsigned32 (0..'ffffffff'h)
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The value of this object identifies the installed
           software package for the application of which this
           process is a part.  Provided that the process's 'parent'
           application can be determined, the value of this object
           is the same value as the sysApplInstallPkgIndex for the
           entry in the sysApplInstallPkgTable that corresponds
           to the installed application of which this process
           is a part.

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           If, however, the 'parent' application cannot be
           determined, (for example the process is not part
           of a particular installed application), the value
           for this object is then '0', signifying that this
           process cannot be related back to an application,
           and in turn, an installed software package."
       ::= { sysApplMapEntry 2 }

   -- Conformance Macros

   sysApplMIBCompliances  OBJECT IDENTIFIER ::= { sysApplConformance 1 }
   sysApplMIBGroups       OBJECT IDENTIFIER ::= { sysApplConformance 2 }

   sysApplMIBCompliance MODULE-COMPLIANCE
       STATUS  current
       DESCRIPTION
           "Describes the requirements for conformance to
           the System Application MIB"
       MODULE  -- this module
           MANDATORY-GROUPS { sysApplInstalledGroup,
                              sysApplRunGroup, sysApplMapGroup }
       ::= { sysApplMIBCompliances 1 }

   sysApplInstalledGroup OBJECT-GROUP
       OBJECTS { sysApplInstallPkgManufacturer,
                 sysApplInstallPkgProductName,
                 sysApplInstallPkgVersion,
                 sysApplInstallPkgSerialNumber,
                 sysApplInstallPkgDate,
                 sysApplInstallPkgLocation,
                 sysApplInstallElmtName,
                 sysApplInstallElmtType,
                 sysApplInstallElmtDate,
                 sysApplInstallElmtPath,
                 sysApplInstallElmtSizeHigh,
                 sysApplInstallElmtSizeLow,
                 sysApplInstallElmtRole,
                 sysApplInstallElmtModifyDate,
                 sysApplInstallElmtCurSizeHigh,
                 sysApplInstallElmtCurSizeLow }
       STATUS  current
       DESCRIPTION
           "The system application installed group contains
           information about applications and their constituent

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           components which have been installed on the host system."
       ::= { sysApplMIBGroups 1 }

   sysApplRunGroup OBJECT-GROUP
       OBJECTS { sysApplRunStarted,
                 sysApplRunCurrentState,
                 sysApplPastRunStarted,
                 sysApplPastRunExitState,
                 sysApplPastRunTimeEnded,
                 sysApplElmtRunInstallID,
                 sysApplElmtRunTimeStarted,
                 sysApplElmtRunState,
                 sysApplElmtRunName,
                 sysApplElmtRunParameters,
                 sysApplElmtRunCPU,
                 sysApplElmtRunMemory,
                 sysApplElmtRunNumFiles,
                 sysApplElmtRunUser,
                 sysApplElmtPastRunInstallID,
                 sysApplElmtPastRunTimeStarted,
                 sysApplElmtPastRunTimeEnded,
                 sysApplElmtPastRunExitState,
                 sysApplElmtPastRunName,
                 sysApplElmtPastRunParameters,
                 sysApplElmtPastRunCPU,
                 sysApplElmtPastRunMemory,
                 sysApplElmtPastRunNumFiles,
                 sysApplElmtPastRunUser,
                 sysApplPastRunMaxRows,
                 sysApplPastRunTableRemItems,
                 sysApplPastRunTblTimeLimit,
                 sysApplElemPastRunMaxRows,
                 sysApplElemPastRunTableRemItems,
                 sysApplElemPastRunTblTimeLimit,
                 sysApplAgentPollInterval }
       STATUS  current
       DESCRIPTION
           "The system application run group contains information
           about applications and associated elements which have
           run or are currently running on the host system."
       ::= { sysApplMIBGroups 2 }

   sysApplMapGroup OBJECT-GROUP
       OBJECTS { sysApplMapInstallPkgIndex }
       STATUS  current

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       DESCRIPTION
           "The Map Group contains a single table, sysApplMapTable,
           that provides a backwards mapping for determining the
           invoked application, installed element, and installed
           application package given a known process identification
           number."
   ::= { sysApplMIBGroups 3 }

   END

 7.  Implementation Issues

 This section discusses implementation issues that are
 important for both an agent developer, and a management
 application developer or user to understand with regards to
 this MIB module.  Although this section does not attempt to
 prescribe a particular implementation strategy, it does
 attempt to recognize some of the real world limitations that
 could effect an implementation of this MIB module.

 7.1.  Implementation with Polling Agents

 Implementations of the System Application MIB on popular
 operating systems might require some considerable processing
 power to obtain status information from the managed resources.
 It might also be difficult to determine when an application or
 a process starts or finishes. Implementors of this MIB might
 therefore choose an implementation approach where the agent
 polls the managed resources at regular intervals. The
 information retrieved by every poll is used to update a cached
 version of this MIB maintained inside of the agent. SNMP
 request are processed based on the information found in this
 MIB cache.

 A scalar sysApplAgentPollInterval is defined to give the
 manager control over the polling frequency. There is a trade-
 off between the amount of resources consumed during every poll
 to update the MIB cache, and the accuracy of the information
 provided by the System Application MIB agent. A default value
 of 60 seconds is defined to keep the processing overhead low,

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 while providing usable information for long-lived processes. A
 manager is expected to adjust this value if more accurate
 information about short-lived applications or processes is
 needed, or if the amount of resources consumed by the agent is
 too high.

 7.2.  sysApplElmtPastRunTable Entry Collisions

 The sysApplElmtPastRunTable maintains a history of processes
 which have previously executed on the host as part of an
 application.  Information is moved from the
 sysApplElmtRunTable to this PastRun table when the process
 represented by the entry terminates.

 The sysApplElmtPastRunTable is indexed by the tuple,
 (sysApplElmtPastRunInvocID, sysApplElmtPastRunIndex), where
 the first part identifies the application invocation of which
 the process was a part, and the second part identifies the
 process itself.

 Recall that the sysApplElmtRunIndex represents the system's
 unique identification number assigned to a running process and
 that this value is mapped to sysApplElmtPastRunIndex when the
 process terminates and the entry's information is moved from
 the sysApplElmtRunTable to the sysApplElmtPastRunTable.  Many
 systems re-use process ID numbers which are no longer assigned
 to running processes; typically, the process numbers wrap and
 the next available process number is used.

 It is therefore possible for two entries in the
 sysApplElmtPastRun Table to have the same value for
 sysApplElmtPastRunIndex.  For this reason, entries in the
 ElmtPastRun table are indexed by the tuple
 sysApplElmtPastRunInvocID, sysApplElmtPastRunIndex to reduce
 the chance of a collision by two past run elements with the
 same sysApplElmtPastRunIndex.

 However, it is still possible, though unlikely, for a
 collision to occur if the following happens:

 1)   the invoked application (identified by InvocID), has an
      element which runs, terminates, and is moved into the
      sysApplElmtPastRun table (index: InvocID, RunIndex)

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 2)   the numbers used for the system's process identification
      numbering wrap

 3)   that same invoked application (same InvocID), has another
      element process run, AND that process is assigned the
      same identification number as one of the processes
      previously run by that invoked application (same
      RunIndex), and finally,

 4)   that element process terminates and is moved to the
      sysApplElmtPastRun table prior to the old, duplicate
      (InvocID, RunIndex) entry being aged out of the table by
      settings defined for sysApplElmtPastRunMaxRows and
      sysApplElmtPastRunTblTimeLimit.

 In the event that a collision occurs, the new entry will
 replace the old entry.

 8.  Security Considerations

 In order to implement this MIB, an agent must make certain
 management information available about various logical and
 physical entities within a managed system which may be
 considered sensitive in some network environments.

 Therefore, a network administrator may wish to employ
 instance-level access control, and configure the access
 mechanism (i.e., community strings in SNMPv1 and SNMPv2C),
 such that certain instances within this MIB are excluded from
 particular MIB views.

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 9.  Acknowledgements

 This document was produced by the Application MIB working
 group.  Special acknowledgement is made to:

      Rick Sturm
      Enterprise Management Professional Services, Inc.
      sturm@emi-summit.com
      For hosting the working group mailing list, and for his
      participation in the development of the initial draft.

      Jon Weinstock
      General Instrument Corporation
      jweinstock@gic.gi.com
      For his participation in the development of the initial drafts
      and for serving as editor for drafts 1 and 2.

      The editor would like to extend special thanks to the
      following working group members for their contributions
      to this effort.

      Harald Alvestrand, George Best, Ian Hanson, Harrie
      Hazewinkel, Carl Kalbfleisch, Bobby Krupczak, Randy
      Presuhn, Jon Saperia, Juergen Schoenwaelder

 10.  Editor's Address

      Cheryl Krupczak
      Empire Technologies, Inc.
      541 Tenth Street, NW Suite 169
      Atlanta, GA 30318
      Phone: 770.384.0184
      Email: cheryl@empiretech.com

 11.  References

 [1]  Information processing systems - Open Systems
      Interconnection - Specification of Abstract Syntax
      Notation Once (ASN.1), International Organization for
      Standardization.  International Standard 8824, (December,

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      1987).

 [2]  SNMPv2 Working Group, Case, J., McCloghrie, K., Rose, M.,
      and S. Waldbusser, "Structure of Management Information
      for Version 2 of the Simple Network Management Protocol
      (SNMPv2)", RFC 1902, January 1996.

 [3]  SNMPv2 Working Group, Case, J., McCloghrie, K., Rose, M.,
      and S. Waldbusser, "Textual Conventions for Version 2 of
      the Simple Network Management Protocol (SNMPv2)", RFC
      1903, January 1996.

 [4]  SNMPv2 Working Group, Case, J., McCloghrie, K., Rose, M.,
      and S. Waldbusser, "Conformance Statements for Version 2
      of the Simple Network Management Protocol (SNMPv2)", RFC
      1904, January 1996.

 [5]  SNMPv2 Working Group, Case, J., McCloghrie, K., Rose, M.,
      and S. Waldbusser, "Protocol Operations for Version 2 of
      the Simple Network Management Protocol (SNMPv2)", RFC
      1905, January 1996.

 [6]  SNMPv2 Working Group, Case, J., McCloghrie, K., Rose, M.,
      and S. Waldbusser, "Transport Mappings for SNMPv2", RFC
      1906, January 1996.

 [7]  SNMPv2 Working Group, Case, J., McCloghrie, K., Rose, M.,
      and S. Waldbusser, "Management Information Base for
      Version 2 of the Simple Network Management Protocol
      (SNMPv2)", RFC 1907, January 1996.

 [8]  SNMPv2 Working Group, Case, J., McCloghrie, K., Rose, M.,
      and S. Waldbusser, "Coexistence between Version 1 and
      Version 2 of the Internet-standard Network Management
      Framework", RFC 1908, January 1996.

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 [9]  P. Grillo, S. Waldbusser, "Host Resources MIB", RFC 1514,
      September 1993.

 [10] F. Yergeau, "UTF-8, a transformation format of Unicode
      and ISO 10646", RFC 2044, October 1996.

 [11] C. Krupczak, S. Waldbusser, "Applicability of Host
      Resources MIB to Application Management", Application MIB
      working group report, October 1995.

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

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