Network Working Group
Request for Comments: 2790
Obsoletes: 1514
Category: Standards Track
S. Waldbusser
Lucent Technologies Inc.
P. Grillo
WeSync.com
March 2000
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Host Resources MIB

Status of this Memo

This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited.

Copyright Notice

Copyright © The Internet Society (2000). All Rights Reserved.

Abstract

This memo defines a portion of the Management Information Base (MIB) for use with network management protocols in the Internet community. This memo obsoletes RFC 1514, the "Host Resources MIB". This memo extends that specification by clarifying changes based on implementation and deployment experience and documenting the Host Resources MIB in SMIv2 format while remaining semantically identical to the existing SMIv1-based MIB.

This memo defines a MIB for use with managing host systems. The term "host" is construed to mean any computer that communicates with other similar computers attached to the internet and that is directly used by one or more human beings. Although this MIB does not necessarily apply to devices whose primary function is communications services (e.g., terminal servers, routers, bridges, monitoring equipment), such relevance is not explicitly precluded. This MIB instruments attributes common to all internet hosts including, for example, both personal computers and systems that run variants of Unix.


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Table of Contents

1 The SNMP Management Framework
2 Host Resources MIB
3 IANA Considerations
4 Definitions
4.1 Textual Conventions
4.2 The Host Resources System Group
4.3 The Host Resources Storage Group
4.4 The Host Resources Device Group
4.5 The Host Resources Running Software Group
4.6 The Host Resources Running Software Performance
Group
4.7 The Host Resources Installed Software Group
4.8 Conformance Definitions
5 Type Definitions
6 Internationalization Considerations
7 Security Considerations
8 References
9 Acknowledgments
10 Authors' Addresses
11 Intellectual Property
12 Full Copyright Statement

1 The SNMP Management Framework

The SNMP Management Framework presently consists of five major components:


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A more detailed introduction to the current SNMP Management Framework can be found in RFC 2570 [RFC2570].

Managed objects are accessed via a virtual information store, termed the Management Information Base or MIB. Objects in the MIB are defined using the mechanisms defined in the SMI.

This memo specifies a MIB module that is compliant to the SMIv2. A MIB conforming to the SMIv1 can be produced through the appropriate translations. The resulting translated MIB must be semantically equivalent, except where objects or events are omitted because no translation is possible (use of Counter64). Some machine readable information in SMIv2 will be converted into textual descriptions in SMIv1 during the translation process. However, this loss of machine readable information is not considered to change the semantics of the MIB.

2 Host Resources MIB

The Host Resources MIB defines a uniform set of objects useful for the management of host computers. Host computers are independent of the operating system, network services, or any software application.

The Host Resources MIB defines objects which are common across many computer system architectures.

In addition, there are objects in the SNMPv2-MIB [RFC1907] and IF-MIB [RFC2233] which also provide host management functionality. Implementation of the System and Interfaces groups is mandatory for implementors of the Host Resources MIB.

The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED","MAY", and "OPTIONAL" in this document are to be interpreted as described in [RFC2119].


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3 IANA Considerations

This MIB contains type definitions for storage types, device types, and file system types for use as values for the hrStorageType, hrDeviceType, and hrFSType objects, respectively. As new computing technologies are developed, new types need to be registered for these technologies. The IANA (Internet Assigned Numbers Authority) is designated as the registration authority for new registrations beyond those published in this document. The IANA will maintain the HOST- RESOURCES-TYPES module as new registrations are added and publish new versions of this module.

Given the large number of such technologies and potential confusion in naming of these technologies (such as a technology known by two names or a name and an acronym), there is a real danger that more than one registration might be created for what is essentially the same technology. In order to ensure that future type registrations are performed correctly, applications for new types will be reviewed by a Designated Expert appointed by the IESG.

4 Definitions

   HOST-RESOURCES-MIB DEFINITIONS ::= BEGIN

IMPORTS
MODULE-IDENTITY, OBJECT-TYPE, mib-2,
Integer32, Counter32, Gauge32, TimeTicks FROM SNMPv2-SMI

TEXTUAL-CONVENTION, DisplayString,

   TruthValue, DateAndTime, AutonomousType   FROM SNMPv2-TC

   MODULE-COMPLIANCE, OBJECT-GROUP           FROM SNMPv2-CONF

   InterfaceIndexOrZero                      FROM IF-MIB;

hostResourcesMibModule MODULE-IDENTITY

      LAST-UPDATED "200003060000Z"    -- 6 March 2000
      ORGANIZATION "IETF Host Resources MIB Working Group"
      CONTACT-INFO
          "Steve Waldbusser
          Postal: Lucent Technologies, Inc.
                  1213 Innsbruck Dr.
                  Sunnyvale, CA 94089
                  USA
          Phone:  650-318-1251
          Fax:    650-318-1633
          Email:  waldbusser@lucent.com


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In addition, the Host Resources MIB mailing list is dedicated to discussion of this MIB. To join the
mailing list, send a request message to
hostmib-request@andrew.cmu.edu. The mailing list
address is hostmib@andrew.cmu.edu."

DESCRIPTION
"This MIB is for use in managing host systems. The term `host' is construed to mean any computer that communicates with other similar computers attached to the internet and that is directly used by one or more human beings. Although this MIB does not necessarily apply to devices whose primary function is communications services (e.g., terminal servers, routers, bridges, monitoring equipment), such relevance is not explicitly precluded. This MIB instruments attributes common to all internet hosts including, for example, both personal computers and systems that run variants of Unix."

      REVISION "200003060000Z"        -- 6 March 2000
      DESCRIPTION
          "Clarifications and bug fixes based on implementation
          experience.  This revision was also reformatted in the SMIv2
          format. The revisions made were:

New RFC document standards:
Added Copyright notice, updated introduction to SNMP Framework, updated references section, added reference to RFC 2119, and added a meaningful Security Considerations section.

New IANA considerations section for registration of new types

Conversion to new SMIv2 syntax for the following types and macros:
Counter32, Integer32, Gauge32, MODULE-IDENTITY, OBJECT-TYPE, TEXTUAL-CONVENTION, OBJECT-IDENTITY, MODULE-COMPLIANCE, OBJECT-GROUP

Used new Textual Conventions:
TruthValue, DateAndTime, AutonomousType,
InterfaceIndexOrZero

Fixed typo in hrPrinterStatus.

Added missing error bits to hrPrinterDetectedErrorState and clarified confusion resulting from suggested mappings to hrPrinterStatus.


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Clarified that size of objects of type
InternationalDisplayString is number of octets, not number of encoded symbols.

Clarified the use of the following objects based on implementation experience:
hrSystemInitialLoadDevice, hrSystemInitialLoadParameters, hrMemorySize, hrStorageSize, hrStorageAllocationFailures, hrDeviceErrors, hrProcessorLoad, hrNetworkIfIndex, hrDiskStorageCapacity, hrSWRunStatus, hrSWRunPerfCPU, and hrSWInstalledDate.

Clarified implementation technique for hrSWInstalledTable.

Used new AUGMENTS clause for hrSWRunPerfTable.

Added Internationalization Considerations section.

This revision published as RFC2790."

      REVISION "9910202200Z"    -- 20 October, 1999
      DESCRIPTION
          "The original version of this MIB, published as
          RFC1514."
      ::= { hrMIBAdminInfo 1 }

   host     OBJECT IDENTIFIER ::= { mib-2 25 }

   hrSystem        OBJECT IDENTIFIER ::= { host 1 }
   hrStorage       OBJECT IDENTIFIER ::= { host 2 }
   hrDevice        OBJECT IDENTIFIER ::= { host 3 }
   hrSWRun         OBJECT IDENTIFIER ::= { host 4 }
   hrSWRunPerf     OBJECT IDENTIFIER ::= { host 5 }
   hrSWInstalled   OBJECT IDENTIFIER ::= { host 6 }
   hrMIBAdminInfo  OBJECT IDENTIFIER ::= { host 7 }

   -- textual conventions

   KBytes ::= TEXTUAL-CONVENTION
       STATUS current
       DESCRIPTION
           "Storage size, expressed in units of 1024 bytes."
       SYNTAX Integer32 (0..2147483647)

   ProductID ::= TEXTUAL-CONVENTION
       STATUS current
       DESCRIPTION
           "This textual convention is intended to identify the


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manufacturer, model, and version of a specific
hardware or software product. It is suggested that these OBJECT IDENTIFIERs are allocated such that all products from a particular manufacturer are registered under a subtree distinct to that manufacturer. In addition, all versions of a product should be
registered under a subtree distinct to that product. With this strategy, a management station may uniquely determine the manufacturer and/or model of a product whose productID is unknown to the management station. Objects of this type may be useful for inventory
purposes or for automatically detecting
incompatibilities or version mismatches between
various hardware and software components on a system.

For example, the product ID for the ACME 4860 66MHz clock doubled processor might be:
enterprises.acme.acmeProcessors.a4860DX2.MHz66

A software product might be registered as:
enterprises.acme.acmeOperatingSystems.acmeDOS.six(6).one(1) "
SYNTAX OBJECT IDENTIFIER

   -- unknownProduct will be used for any unknown ProductID
   -- unknownProduct OBJECT IDENTIFIER ::= { 0 0 }

   InternationalDisplayString ::= TEXTUAL-CONVENTION
       STATUS current
       DESCRIPTION
           "This data type is used to model textual information
           in some character set.  A network management station
           should use a local algorithm to determine which
           character set is in use and how it should be
           displayed.  Note that this character set may be
           encoded with more than one octet per symbol, but will
           most often be NVT ASCII. When a size clause is
           specified for an object of this type, the size refers
           to the length in octets, not the number of symbols."
       SYNTAX OCTET STRING

   -- The Host Resources System Group

hrSystemUptime OBJECT-TYPE

       SYNTAX     TimeTicks
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION


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"The amount of time since this host was last
initialized. Note that this is different from
sysUpTime in the SNMPv2-MIB [RFC1907] because
sysUpTime is the uptime of the network management portion of the system."

       ::= { hrSystem 1 }

hrSystemDate OBJECT-TYPE

       SYNTAX     DateAndTime
       MAX-ACCESS read-write
       STATUS     current
       DESCRIPTION
           "The host's notion of the local date and time of day."
       ::= { hrSystem 2 }

hrSystemInitialLoadDevice OBJECT-TYPE

       SYNTAX     Integer32 (1..2147483647)
       MAX-ACCESS read-write
       STATUS     current
       DESCRIPTION
           "The index of the hrDeviceEntry for the device from
           which this host is configured to load its initial
           operating system configuration (i.e., which operating
           system code and/or boot parameters).

Note that writing to this object just changes the configuration that will be used the next time the operating system is loaded and does not actually cause the reload to occur."

       ::= { hrSystem 3 }

hrSystemInitialLoadParameters OBJECT-TYPE

       SYNTAX     InternationalDisplayString (SIZE (0..128))
       MAX-ACCESS read-write
       STATUS     current
       DESCRIPTION
           "This object contains the parameters (e.g. a pathname
           and parameter) supplied to the load device when
           requesting the initial operating system configuration
           from that device.

Note that writing to this object just changes the
configuration that will be used the next time the
operating system is loaded and does not actually cause the reload to occur."

       ::= { hrSystem 4 }

hrSystemNumUsers OBJECT-TYPE


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       SYNTAX     Gauge32
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "The number of user sessions for which this host is
           storing state information.  A session is a collection
           of processes requiring a single act of user
           authentication and possibly subject to collective job
           control."
       ::= { hrSystem 5 }

hrSystemProcesses OBJECT-TYPE

       SYNTAX     Gauge32
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "The number of process contexts currently loaded or
           running on this system."
       ::= { hrSystem 6 }

hrSystemMaxProcesses OBJECT-TYPE

       SYNTAX     Integer32 (0..2147483647)
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "The maximum number of process contexts this system
           can support.  If there is no fixed maximum, the value
           should be zero.  On systems that have a fixed maximum,
           this object can help diagnose failures that occur when
           this maximum is reached."
       ::= { hrSystem 7 }

   -- The Host Resources Storage Group

   -- Registration point for storage types, for use with hrStorageType.
   -- These are defined in the HOST-RESOURCES-TYPES module.
   hrStorageTypes          OBJECT IDENTIFIER ::= { hrStorage 1 }

hrMemorySize OBJECT-TYPE

       SYNTAX     KBytes
       UNITS      "KBytes"
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "The amount of physical read-write main memory,
           typically RAM, contained by the host."
       ::= { hrStorage 2 }


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hrStorageTable OBJECT-TYPE

       SYNTAX     SEQUENCE OF HrStorageEntry
       MAX-ACCESS not-accessible
       STATUS     current
       DESCRIPTION
           "The (conceptual) table of logical storage areas on
           the host.

An entry shall be placed in the storage table for each logical area of storage that is allocated and has fixed resource limits. The amount of storage
represented in an entity is the amount actually usable by the requesting entity, and excludes loss due to formatting or file system reference information.

These entries are associated with logical storage areas, as might be seen by an application, rather than physical storage entities which are typically seen by an operating system. Storage such as tapes and
floppies without file systems on them are typically not allocated in chunks by the operating system to requesting applications, and therefore shouldn't
appear in this table. Examples of valid storage for this table include disk partitions, file systems, ram (for some architectures this is further segmented into regular memory, extended memory, and so on), backing store for virtual memory (`swap space').

This table is intended to be a useful diagnostic for `out of memory' and `out of buffers' types of
failures. In addition, it can be a useful performance monitoring tool for tracking memory, disk, or buffer usage."

       ::= { hrStorage 3 }

hrStorageEntry OBJECT-TYPE

       SYNTAX     HrStorageEntry
       MAX-ACCESS not-accessible
       STATUS     current
       DESCRIPTION
           "A (conceptual) entry for one logical storage area on
           the host.  As an example, an instance of the
           hrStorageType object might be named hrStorageType.3"
       INDEX { hrStorageIndex }
       ::= { hrStorageTable 1 }

   HrStorageEntry ::= SEQUENCE {
           hrStorageIndex               Integer32,


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           hrStorageType                AutonomousType,
           hrStorageDescr               DisplayString,
           hrStorageAllocationUnits     Integer32,
           hrStorageSize                Integer32,
           hrStorageUsed                Integer32,
           hrStorageAllocationFailures  Counter32
       }

hrStorageIndex OBJECT-TYPE

       SYNTAX     Integer32 (1..2147483647)
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "A unique value for each logical storage area
           contained by the host."
       ::= { hrStorageEntry 1 }

hrStorageType OBJECT-TYPE

       SYNTAX     AutonomousType
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "The type of storage represented by this entry."
       ::= { hrStorageEntry 2 }

hrStorageDescr OBJECT-TYPE

       SYNTAX     DisplayString
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "A description of the type and instance of the storage
           described by this entry."
       ::= { hrStorageEntry 3 }

hrStorageAllocationUnits OBJECT-TYPE

       SYNTAX     Integer32 (1..2147483647)
       UNITS      "Bytes"
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "The size, in bytes, of the data objects allocated
           from this pool.  If this entry is monitoring sectors,
           blocks, buffers, or packets, for example, this number
           will commonly be greater than one.  Otherwise this
           number will typically be one."
       ::= { hrStorageEntry 4 }

hrStorageSize OBJECT-TYPE


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       SYNTAX     Integer32 (0..2147483647)
       MAX-ACCESS read-write
       STATUS     current
       DESCRIPTION
           "The size of the storage represented by this entry, in
           units of hrStorageAllocationUnits. This object is
           writable to allow remote configuration of the size of
           the storage area in those cases where such an
           operation makes sense and is possible on the
           underlying system. For example, the amount of main
           memory allocated to a buffer pool might be modified or
           the amount of disk space allocated to virtual memory
           might be modified."
       ::= { hrStorageEntry 5 }

hrStorageUsed OBJECT-TYPE

       SYNTAX     Integer32 (0..2147483647)
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "The amount of the storage represented by this entry
           that is allocated, in units of
           hrStorageAllocationUnits."
       ::= { hrStorageEntry 6 }

hrStorageAllocationFailures OBJECT-TYPE

       SYNTAX     Counter32
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "The number of requests for storage represented by
           this entry that could not be honored due to not enough
           storage.  It should be noted that as this object has a
           SYNTAX of Counter32, that it does not have a defined
           initial value.  However, it is recommended that this
           object be initialized to zero, even though management
           stations must not depend on such an initialization."
       ::= { hrStorageEntry 7 }

   -- The Host Resources Device Group
   --
   -- The device group is useful for identifying and diagnosing the
   -- devices on a system.  The hrDeviceTable contains common
   -- information for any type of device.  In addition, some devices
   -- have device-specific tables for more detailed information.  More
   -- such tables may be defined in the future for other device types.

   -- Registration point for device types, for use with hrDeviceType.


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   -- These are defined in the HOST-RESOURCES-TYPES module.
   hrDeviceTypes             OBJECT IDENTIFIER ::= { hrDevice 1 }

hrDeviceTable OBJECT-TYPE

       SYNTAX     SEQUENCE OF HrDeviceEntry
       MAX-ACCESS not-accessible
       STATUS     current
       DESCRIPTION
           "The (conceptual) table of devices contained by the
           host."
       ::= { hrDevice 2 }

hrDeviceEntry OBJECT-TYPE

       SYNTAX     HrDeviceEntry
       MAX-ACCESS not-accessible
       STATUS     current
       DESCRIPTION
           "A (conceptual) entry for one device contained by the
           host.  As an example, an instance of the hrDeviceType
           object might be named hrDeviceType.3"
       INDEX { hrDeviceIndex }
       ::= { hrDeviceTable 1 }

   HrDeviceEntry ::= SEQUENCE {
           hrDeviceIndex           Integer32,
           hrDeviceType            AutonomousType,
           hrDeviceDescr           DisplayString,
           hrDeviceID              ProductID,
           hrDeviceStatus          INTEGER,
           hrDeviceErrors          Counter32
       }

hrDeviceIndex OBJECT-TYPE

       SYNTAX     Integer32 (1..2147483647)
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "A unique value for each device contained by the host.
           The value for each device must remain constant at
           least from one re-initialization of the agent to the
           next re-initialization."
       ::= { hrDeviceEntry 1 }

hrDeviceType OBJECT-TYPE

       SYNTAX     AutonomousType
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION


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"An indication of the type of device.

If this value is
`hrDeviceProcessor { hrDeviceTypes 3 }' then an entry exists in the hrProcessorTable which corresponds to this device.

If this value is
`hrDeviceNetwork { hrDeviceTypes 4 }', then an entry exists in the hrNetworkTable which corresponds to this device.

If this value is
`hrDevicePrinter { hrDeviceTypes 5 }', then an entry exists in the hrPrinterTable which corresponds to this device.

If this value is
`hrDeviceDiskStorage { hrDeviceTypes 6 }', then an entry exists in the hrDiskStorageTable which
corresponds to this device."

       ::= { hrDeviceEntry 2 }

hrDeviceDescr OBJECT-TYPE

       SYNTAX     DisplayString (SIZE (0..64))
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "A textual description of this device, including the
           device's manufacturer and revision, and optionally,
           its serial number."
       ::= { hrDeviceEntry 3 }

hrDeviceID OBJECT-TYPE

       SYNTAX     ProductID
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "The product ID for this device."
       ::= { hrDeviceEntry 4 }

hrDeviceStatus OBJECT-TYPE

       SYNTAX     INTEGER {
                      unknown(1),
                      running(2),
                      warning(3),
                      testing(4),
                      down(5)


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}
MAX-ACCESS read-only

       STATUS     current
       DESCRIPTION
           "The current operational state of the device described
           by this row of the table.  A value unknown(1)
           indicates that the current state of the device is
           unknown.  running(2) indicates that the device is up
           and running and that no unusual error conditions are
           known.  The warning(3) state indicates that agent has
           been informed of an unusual error condition by the
           operational software (e.g., a disk device driver) but
           that the device is still 'operational'.  An example
           would be a high number of soft errors on a disk.  A
           value of testing(4), indicates that the device is not
           available for use because it is in the testing state.
           The state of down(5) is used only when the agent has
           been informed that the device is not available for any
           use."
       ::= { hrDeviceEntry 5 }

hrDeviceErrors OBJECT-TYPE

       SYNTAX     Counter32
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "The number of errors detected on this device.  It
           should be noted that as this object has a SYNTAX of
           Counter32, that it does not have a defined initial
           value.  However, it is recommended that this object be
           initialized to zero, even though management stations
           must not depend on such an initialization."
       ::= { hrDeviceEntry 6 }

hrProcessorTable OBJECT-TYPE

       SYNTAX     SEQUENCE OF HrProcessorEntry
       MAX-ACCESS not-accessible
       STATUS     current
       DESCRIPTION
           "The (conceptual) table of processors contained by the
           host.

Note that this table is potentially sparse: a
(conceptual) entry exists only if the correspondent value of the hrDeviceType object is
`hrDeviceProcessor'."

       ::= { hrDevice 3 }


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hrProcessorEntry OBJECT-TYPE

       SYNTAX     HrProcessorEntry
       MAX-ACCESS not-accessible
       STATUS     current
       DESCRIPTION
           "A (conceptual) entry for one processor contained by
           the host.  The hrDeviceIndex in the index represents
           the entry in the hrDeviceTable that corresponds to the
           hrProcessorEntry.

As an example of how objects in this table are named, an instance of the hrProcessorFrwID object might be named hrProcessorFrwID.3"
INDEX { hrDeviceIndex }

       ::= { hrProcessorTable 1 }

   HrProcessorEntry ::= SEQUENCE {
           hrProcessorFrwID            ProductID,
           hrProcessorLoad             Integer32
       }

hrProcessorFrwID OBJECT-TYPE

       SYNTAX     ProductID
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "The product ID of the firmware associated with the
           processor."
       ::= { hrProcessorEntry 1 }

hrProcessorLoad OBJECT-TYPE

       SYNTAX     Integer32 (0..100)
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "The average, over the last minute, of the percentage
           of time that this processor was not idle.
           Implementations may approximate this one minute
           smoothing period if necessary."
       ::= { hrProcessorEntry 2 }

hrNetworkTable OBJECT-TYPE

       SYNTAX     SEQUENCE OF HrNetworkEntry
       MAX-ACCESS not-accessible
       STATUS     current
       DESCRIPTION
           "The (conceptual) table of network devices contained
           by the host.


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Note that this table is potentially sparse: a
(conceptual) entry exists only if the correspondent value of the hrDeviceType object is
`hrDeviceNetwork'."

       ::= { hrDevice 4 }

hrNetworkEntry OBJECT-TYPE

       SYNTAX     HrNetworkEntry
       MAX-ACCESS not-accessible
       STATUS     current
       DESCRIPTION
           "A (conceptual) entry for one network device contained
           by the host.  The hrDeviceIndex in the index
           represents the entry in the hrDeviceTable that
           corresponds to the hrNetworkEntry.

As an example of how objects in this table are named, an instance of the hrNetworkIfIndex object might be named hrNetworkIfIndex.3"
INDEX { hrDeviceIndex }

       ::= { hrNetworkTable 1 }

   HrNetworkEntry ::= SEQUENCE {
           hrNetworkIfIndex    InterfaceIndexOrZero
       }

hrNetworkIfIndex OBJECT-TYPE

       SYNTAX     InterfaceIndexOrZero
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "The value of ifIndex which corresponds to this
           network device. If this device is not represented in
           the ifTable, then this value shall be zero."
       ::= { hrNetworkEntry 1 }

hrPrinterTable OBJECT-TYPE

       SYNTAX     SEQUENCE OF HrPrinterEntry
       MAX-ACCESS not-accessible
       STATUS     current
       DESCRIPTION
           "The (conceptual) table of printers local to the host.

Note that this table is potentially sparse: a
(conceptual) entry exists only if the correspondent value of the hrDeviceType object is
`hrDevicePrinter'."

       ::= { hrDevice 5 }


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hrPrinterEntry OBJECT-TYPE

       SYNTAX     HrPrinterEntry
       MAX-ACCESS not-accessible
       STATUS     current
       DESCRIPTION
           "A (conceptual) entry for one printer local to the
           host.  The hrDeviceIndex in the index represents the
           entry in the hrDeviceTable that corresponds to the
           hrPrinterEntry.

As an example of how objects in this table are named, an instance of the hrPrinterStatus object might be named hrPrinterStatus.3"
INDEX { hrDeviceIndex }

       ::= { hrPrinterTable 1 }

   HrPrinterEntry ::= SEQUENCE {
           hrPrinterStatus             INTEGER,
           hrPrinterDetectedErrorState OCTET STRING
       }

hrPrinterStatus OBJECT-TYPE

       SYNTAX     INTEGER {
                      other(1),
                      unknown(2),
                      idle(3),
                      printing(4),
                      warmup(5)
                  }
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "The current status of this printer device."
       ::= { hrPrinterEntry 1 }

hrPrinterDetectedErrorState OBJECT-TYPE

       SYNTAX     OCTET STRING
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "This object represents any error conditions detected
           by the printer.  The error conditions are encoded as
           bits in an octet string, with the following
           definitions:

                Condition         Bit #

                lowPaper              0


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                noPaper               1
                lowToner              2
                noToner               3
                doorOpen              4
                jammed                5
                offline               6
                serviceRequested      7
                inputTrayMissing      8
                outputTrayMissing     9
                markerSupplyMissing  10
                outputNearFull       11
                outputFull           12
                inputTrayEmpty       13
                overduePreventMaint  14

Bits are numbered starting with the most significant bit of the first byte being bit 0, the least
significant bit of the first byte being bit 7, the most significant bit of the second byte being bit 8, and so on. A one bit encodes that the condition was detected, while a zero bit encodes that the condition was not detected.

This object is useful for alerting an operator to specific warning or error conditions that may occur, especially those requiring human intervention."

       ::= { hrPrinterEntry 2 }

hrDiskStorageTable OBJECT-TYPE

       SYNTAX     SEQUENCE OF HrDiskStorageEntry
       MAX-ACCESS not-accessible
       STATUS     current
       DESCRIPTION
           "The (conceptual) table of long-term storage devices
           contained by the host.  In particular, disk devices
           accessed remotely over a network are not included
           here.

Note that this table is potentially sparse: a
(conceptual) entry exists only if the correspondent value of the hrDeviceType object is
`hrDeviceDiskStorage'."

       ::= { hrDevice 6 }

hrDiskStorageEntry OBJECT-TYPE

       SYNTAX     HrDiskStorageEntry
       MAX-ACCESS not-accessible
       STATUS     current


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DESCRIPTION
"A (conceptual) entry for one long-term storage device contained by the host. The hrDeviceIndex in the index represents the entry in the hrDeviceTable that
corresponds to the hrDiskStorageEntry. As an example, an instance of the hrDiskStorageCapacity object might be named hrDiskStorageCapacity.3"
INDEX { hrDeviceIndex }

       ::= { hrDiskStorageTable 1 }

   HrDiskStorageEntry ::= SEQUENCE {
           hrDiskStorageAccess         INTEGER,
           hrDiskStorageMedia          INTEGER,
           hrDiskStorageRemoveble      TruthValue,
           hrDiskStorageCapacity       KBytes
       }

hrDiskStorageAccess OBJECT-TYPE

       SYNTAX     INTEGER {
                      readWrite(1),
                      readOnly(2)
                  }
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "An indication if this long-term storage device is
           readable and writable or only readable.  This should
           reflect the media type, any write-protect mechanism,
           and any device configuration that affects the entire
           device."
       ::= { hrDiskStorageEntry 1 }

hrDiskStorageMedia OBJECT-TYPE

       SYNTAX     INTEGER {
                      other(1),
                      unknown(2),
                      hardDisk(3),
                      floppyDisk(4),
                      opticalDiskROM(5),
                      opticalDiskWORM(6),     -- Write Once Read Many
                      opticalDiskRW(7),
                      ramDisk(8)
                  }
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "An indication of the type of media used in this long-
           term storage device."


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       ::= { hrDiskStorageEntry 2 }

hrDiskStorageRemoveble OBJECT-TYPE

       SYNTAX     TruthValue
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "Denotes whether or not the disk media may be removed
           from the drive."
       ::= { hrDiskStorageEntry 3 }

hrDiskStorageCapacity OBJECT-TYPE

       SYNTAX     KBytes
       UNITS      "KBytes"
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "The total size for this long-term storage device. If
           the media is removable and is currently removed, this
           value should be zero."
       ::= { hrDiskStorageEntry 4 }

hrPartitionTable OBJECT-TYPE

       SYNTAX     SEQUENCE OF HrPartitionEntry
       MAX-ACCESS not-accessible
       STATUS     current
       DESCRIPTION
           "The (conceptual) table of partitions for long-term
           storage devices contained by the host.  In particular,
           partitions accessed remotely over a network are not
           included here."
       ::= { hrDevice 7 }

hrPartitionEntry OBJECT-TYPE

       SYNTAX     HrPartitionEntry
       MAX-ACCESS not-accessible
       STATUS     current
       DESCRIPTION
           "A (conceptual) entry for one partition.  The
           hrDeviceIndex in the index represents the entry in the
           hrDeviceTable that corresponds to the
           hrPartitionEntry.

As an example of how objects in this table are named, an instance of the hrPartitionSize object might be named hrPartitionSize.3.1"
INDEX { hrDeviceIndex, hrPartitionIndex }

       ::= { hrPartitionTable 1 }


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   HrPartitionEntry ::= SEQUENCE {
           hrPartitionIndex                Integer32,
           hrPartitionLabel                InternationalDisplayString,
           hrPartitionID                   OCTET STRING,
           hrPartitionSize                 KBytes,
           hrPartitionFSIndex              Integer32
       }

hrPartitionIndex OBJECT-TYPE

       SYNTAX     Integer32 (1..2147483647)
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "A unique value for each partition on this long-term
           storage device.  The value for each long-term storage
           device must remain constant at least from one re-
           initialization of the agent to the next re-
           initialization."
       ::= { hrPartitionEntry 1 }

hrPartitionLabel OBJECT-TYPE

       SYNTAX     InternationalDisplayString (SIZE (0..128))
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "A textual description of this partition."
       ::= { hrPartitionEntry 2 }

hrPartitionID OBJECT-TYPE

       SYNTAX     OCTET STRING
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "A descriptor which uniquely represents this partition
           to the responsible operating system.  On some systems,
           this might take on a binary representation."
       ::= { hrPartitionEntry 3 }

hrPartitionSize OBJECT-TYPE

       SYNTAX     KBytes
       UNITS      "KBytes"
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "The size of this partition."
       ::= { hrPartitionEntry 4 }

hrPartitionFSIndex OBJECT-TYPE


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       SYNTAX     Integer32 (0..2147483647)
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "The index of the file system mounted on this
           partition.  If no file system is mounted on this
           partition, then this value shall be zero.  Note that
           multiple partitions may point to one file system,
           denoting that that file system resides on those
           partitions.  Multiple file systems may not reside on
           one partition."
       ::= { hrPartitionEntry 5 }

   -- The File System Table

   -- Registration point for popular File System types,
   -- for use with hrFSType. These are defined in the
   -- HOST-RESOURCES-TYPES module.
   hrFSTypes               OBJECT IDENTIFIER ::= { hrDevice 9 }

hrFSTable OBJECT-TYPE

       SYNTAX     SEQUENCE OF HrFSEntry
       MAX-ACCESS not-accessible
       STATUS     current
       DESCRIPTION
           "The (conceptual) table of file systems local to this
           host or remotely mounted from a file server.  File
           systems that are in only one user's environment on a
           multi-user system will not be included in this table."
       ::= { hrDevice 8 }

hrFSEntry OBJECT-TYPE

       SYNTAX     HrFSEntry
       MAX-ACCESS not-accessible
       STATUS     current
       DESCRIPTION
           "A (conceptual) entry for one file system local to
           this host or remotely mounted from a file server.
           File systems that are in only one user's environment
           on a multi-user system will not be included in this
           table.

As an example of how objects in this table are named, an instance of the hrFSMountPoint object might be named hrFSMountPoint.3"
INDEX { hrFSIndex }

       ::= { hrFSTable 1 }


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   HrFSEntry ::= SEQUENCE {
           hrFSIndex                   Integer32,
           hrFSMountPoint              InternationalDisplayString,
           hrFSRemoteMountPoint        InternationalDisplayString,
           hrFSType                    AutonomousType,
           hrFSAccess                  INTEGER,
           hrFSBootable                TruthValue,
           hrFSStorageIndex            Integer32,
           hrFSLastFullBackupDate      DateAndTime,
           hrFSLastPartialBackupDate   DateAndTime
       }

hrFSIndex OBJECT-TYPE

       SYNTAX     Integer32 (1..2147483647)
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "A unique value for each file system local to this
           host.  The value for each file system must remain
           constant at least from one re-initialization of the
           agent to the next re-initialization."
       ::= { hrFSEntry 1 }

hrFSMountPoint OBJECT-TYPE

       SYNTAX     InternationalDisplayString (SIZE(0..128))
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "The path name of the root of this file system."
       ::= { hrFSEntry 2 }

hrFSRemoteMountPoint OBJECT-TYPE

       SYNTAX     InternationalDisplayString (SIZE(0..128))
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "A description of the name and/or address of the
           server that this file system is mounted from.  This
           may also include parameters such as the mount point on
           the remote file system.  If this is not a remote file
           system, this string should have a length of zero."
       ::= { hrFSEntry 3 }

hrFSType OBJECT-TYPE

       SYNTAX     AutonomousType
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION


Page 25

"The value of this object identifies the type of this file system."

       ::= { hrFSEntry 4 }

hrFSAccess OBJECT-TYPE

       SYNTAX     INTEGER {
                      readWrite(1),
                      readOnly(2)
                  }
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "An indication if this file system is logically
           configured by the operating system to be readable and
           writable or only readable.  This does not represent
           any local access-control policy, except one that is
           applied to the file system as a whole."
       ::= { hrFSEntry 5 }

hrFSBootable OBJECT-TYPE

       SYNTAX     TruthValue
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "A flag indicating whether this file system is
           bootable."
       ::= { hrFSEntry 6 }

hrFSStorageIndex OBJECT-TYPE

       SYNTAX     Integer32 (0..2147483647)
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "The index of the hrStorageEntry that represents
           information about this file system.  If there is no
           such information available, then this value shall be
           zero.  The relevant storage entry will be useful in
           tracking the percent usage of this file system and
           diagnosing errors that may occur when it runs out of
           space."
       ::= { hrFSEntry 7 }

hrFSLastFullBackupDate OBJECT-TYPE

       SYNTAX     DateAndTime
       MAX-ACCESS read-write
       STATUS     current
       DESCRIPTION
           "The last date at which this complete file system was


Page 26

copied to another storage device for backup. This information is useful for ensuring that backups are being performed regularly.

If this information is not known, then this variable shall have the value corresponding to January 1, year 0000, 00:00:00.0, which is encoded as
(hex)'00 00 01 01 00 00 00 00'."

       ::= { hrFSEntry 8 }

hrFSLastPartialBackupDate OBJECT-TYPE

       SYNTAX     DateAndTime
       MAX-ACCESS read-write
       STATUS     current
       DESCRIPTION
           "The last date at which a portion of this file system
           was copied to another storage device for backup.  This
           information is useful for ensuring that backups are
           being performed regularly.

If this information is not known, then this variable shall have the value corresponding to January 1, year 0000, 00:00:00.0, which is encoded as
(hex)'00 00 01 01 00 00 00 00'."

       ::= { hrFSEntry 9 }

   -- The Host Resources Running Software Group
   --
   -- The hrSWRunTable contains an entry for each distinct piece of
   -- software that is running or loaded into physical or virtual
   -- memory in preparation for running.  This includes the host's
   -- operating system, device drivers, and applications.

hrSWOSIndex OBJECT-TYPE

       SYNTAX     Integer32 (1..2147483647)
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "The value of the hrSWRunIndex for the hrSWRunEntry
           that represents the primary operating system running
           on this host.  This object is useful for quickly and
           uniquely identifying that primary operating system."
       ::= { hrSWRun 1 }

hrSWRunTable OBJECT-TYPE

       SYNTAX     SEQUENCE OF HrSWRunEntry
       MAX-ACCESS not-accessible
       STATUS     current


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DESCRIPTION
"The (conceptual) table of software running on the host."

       ::= { hrSWRun 2 }

hrSWRunEntry OBJECT-TYPE

       SYNTAX     HrSWRunEntry
       MAX-ACCESS not-accessible
       STATUS     current
       DESCRIPTION
           "A (conceptual) entry for one piece of software
           running on the host Note that because the installed
           software table only contains information for software
           stored locally on this host, not every piece of
           running software will be found in the installed
           software table.  This is true of software that was
           loaded and run from a non-local source, such as a
           network-mounted file system.

As an example of how objects in this table are named, an instance of the hrSWRunName object might be named hrSWRunName.1287"
INDEX { hrSWRunIndex }

       ::= { hrSWRunTable 1 }

   HrSWRunEntry ::= SEQUENCE {
           hrSWRunIndex       Integer32,
           hrSWRunName        InternationalDisplayString,
           hrSWRunID          ProductID,
           hrSWRunPath        InternationalDisplayString,
           hrSWRunParameters  InternationalDisplayString,
           hrSWRunType        INTEGER,
           hrSWRunStatus      INTEGER
       }

hrSWRunIndex OBJECT-TYPE

       SYNTAX     Integer32 (1..2147483647)
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "A unique value for each piece of software running on
           the host.  Wherever possible, this should be the
           system's native, unique identification number."
       ::= { hrSWRunEntry 1 }

hrSWRunName OBJECT-TYPE

       SYNTAX     InternationalDisplayString (SIZE (0..64))
       MAX-ACCESS read-only


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       STATUS     current
       DESCRIPTION
           "A textual description of this running piece of
           software, including the manufacturer, revision,  and
           the name by which it is commonly known.  If this
           software was installed locally, this should be the
           same string as used in the corresponding
           hrSWInstalledName."
       ::= { hrSWRunEntry 2 }

hrSWRunID OBJECT-TYPE

       SYNTAX     ProductID
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "The product ID of this running piece of software."
       ::= { hrSWRunEntry 3 }

hrSWRunPath OBJECT-TYPE

       SYNTAX     InternationalDisplayString (SIZE(0..128))
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "A description of the location on long-term storage
           (e.g. a disk drive) from which this software was
           loaded."
       ::= { hrSWRunEntry 4 }

hrSWRunParameters OBJECT-TYPE

       SYNTAX     InternationalDisplayString (SIZE(0..128))
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "A description of the parameters supplied to this
           software when it was initially loaded."
       ::= { hrSWRunEntry 5 }

hrSWRunType OBJECT-TYPE

       SYNTAX     INTEGER {
                      unknown(1),
                      operatingSystem(2),
                      deviceDriver(3),
                      application(4)
                  }
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "The type of this software."


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       ::= { hrSWRunEntry 6 }

hrSWRunStatus OBJECT-TYPE

       SYNTAX     INTEGER {
                      running(1),
                      runnable(2),    -- waiting for resource
                                      -- (i.e., CPU, memory, IO)
                      notRunnable(3), -- loaded but waiting for event
                      invalid(4)      -- not loaded
                  }
       MAX-ACCESS read-write
       STATUS     current
       DESCRIPTION
           "The status of this running piece of software.
           Setting this value to invalid(4) shall cause this
           software to stop running and to be unloaded. Sets to
           other values are not valid."
       ::= { hrSWRunEntry 7 }

   -- The Host Resources Running Software Performance Group
   --
   -- The hrSWRunPerfTable contains an entry corresponding to
   -- each entry in the hrSWRunTable.

hrSWRunPerfTable OBJECT-TYPE

       SYNTAX     SEQUENCE OF HrSWRunPerfEntry
       MAX-ACCESS not-accessible
       STATUS     current
       DESCRIPTION
           "The (conceptual) table of running software
           performance metrics."
       ::= { hrSWRunPerf 1 }

hrSWRunPerfEntry OBJECT-TYPE

       SYNTAX     HrSWRunPerfEntry
       MAX-ACCESS not-accessible
       STATUS     current
       DESCRIPTION
           "A (conceptual) entry containing software performance
           metrics.  As an example, an instance of the
           hrSWRunPerfCPU object might be named
           hrSWRunPerfCPU.1287"
       AUGMENTS { hrSWRunEntry }  -- This table augments information in
                                  -- the hrSWRunTable.
       ::= { hrSWRunPerfTable 1 }

   HrSWRunPerfEntry ::= SEQUENCE {
           hrSWRunPerfCPU          Integer32,


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           hrSWRunPerfMem          KBytes
   }

hrSWRunPerfCPU OBJECT-TYPE

       SYNTAX     Integer32 (0..2147483647)
       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 increment by
           more than one centi-second in one centi-second of real
           (wall clock) time."
       ::= { hrSWRunPerfEntry 1 }

hrSWRunPerfMem OBJECT-TYPE

       SYNTAX     KBytes
       UNITS      "KBytes"
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "The total amount of real system memory allocated to
           this process."
       ::= { hrSWRunPerfEntry 2 }

   -- The Host Resources Installed Software Group
   --
   -- The hrSWInstalledTable contains an entry for each piece
   -- of software installed in long-term storage (e.g. a disk
   -- drive) locally on this host.  Note that this does not
   -- include software loadable remotely from a network
   -- server.
   --
   -- Different implementations may track software in varying
   -- ways. For example, while some implementations may track
   -- executable files as distinct pieces of software, other
   -- implementations may use other strategies such as keeping
   -- track of software "packages" (e.g., related groups of files)
   -- or keeping track of system or application "patches".
   --
   -- This table is useful for identifying and inventorying
   -- software on a host and for diagnosing incompatibility
   -- and version mismatch problems between various pieces
   -- of hardware and software.

hrSWInstalledLastChange OBJECT-TYPE

       SYNTAX     TimeTicks
       MAX-ACCESS read-only


Page 31

       STATUS     current
       DESCRIPTION
           "The value of sysUpTime when an entry in the
           hrSWInstalledTable was last added, renamed, or
           deleted.  Because this table is likely to contain many
           entries, polling of this object allows a management
           station to determine when re-downloading of the table
           might be useful."
       ::= { hrSWInstalled 1 }

hrSWInstalledLastUpdateTime OBJECT-TYPE

       SYNTAX     TimeTicks
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "The value of sysUpTime when the hrSWInstalledTable
           was last completely updated.  Because caching of this
           data will be a popular implementation strategy,
           retrieval of this object allows a management station
           to obtain a guarantee that no data in this table is
           older than the indicated time."
       ::= { hrSWInstalled 2 }

hrSWInstalledTable OBJECT-TYPE

       SYNTAX     SEQUENCE OF HrSWInstalledEntry
       MAX-ACCESS not-accessible
       STATUS     current
       DESCRIPTION
           "The (conceptual) table of software installed on this
           host."
       ::= { hrSWInstalled 3 }

hrSWInstalledEntry OBJECT-TYPE

       SYNTAX     HrSWInstalledEntry
       MAX-ACCESS not-accessible
       STATUS     current
       DESCRIPTION
           "A (conceptual) entry for a piece of software
           installed on this host.

As an example of how objects in this table are named, an instance of the hrSWInstalledName object might be named hrSWInstalledName.96"
INDEX { hrSWInstalledIndex }

       ::= { hrSWInstalledTable 1 }

   HrSWInstalledEntry ::= SEQUENCE {
           hrSWInstalledIndex       Integer32,


Page 32

           hrSWInstalledName        InternationalDisplayString,
           hrSWInstalledID          ProductID,
           hrSWInstalledType        INTEGER,
           hrSWInstalledDate        DateAndTime
   }

hrSWInstalledIndex OBJECT-TYPE

       SYNTAX     Integer32 (1..2147483647)
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "A unique value for each piece of software installed
           on the host.  This value shall be in the range from 1
           to the number of pieces of software installed on the
           host."
       ::= { hrSWInstalledEntry 1 }

hrSWInstalledName OBJECT-TYPE

       SYNTAX     InternationalDisplayString (SIZE (0..64))
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "A textual description of this installed piece of
           software, including the manufacturer, revision, the
           name by which it is commonly known, and optionally,
           its serial number."
       ::= { hrSWInstalledEntry 2 }

hrSWInstalledID OBJECT-TYPE

       SYNTAX     ProductID
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "The product ID of this installed piece of software."
       ::= { hrSWInstalledEntry 3 }

hrSWInstalledType OBJECT-TYPE

       SYNTAX     INTEGER {
                      unknown(1),
                      operatingSystem(2),
                      deviceDriver(3),
                      application(4)
                  }
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "The type of this software."
       ::= { hrSWInstalledEntry 4 }


Page 33

hrSWInstalledDate OBJECT-TYPE

       SYNTAX     DateAndTime
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "The last-modification date of this application as it
           would appear in a directory listing.

If this information is not known, then this variable shall have the value corresponding to January 1, year 0000, 00:00:00.0, which is encoded as
(hex)'00 00 01 01 00 00 00 00'."

       ::= { hrSWInstalledEntry 5 }

   -- Conformance information

   hrMIBCompliances OBJECT IDENTIFIER ::= { hrMIBAdminInfo 2 }
   hrMIBGroups      OBJECT IDENTIFIER ::= { hrMIBAdminInfo 3 }

   -- Compliance Statements
   hrMIBCompliance MODULE-COMPLIANCE
       STATUS current
       DESCRIPTION
           "The requirements for conformance to the Host Resources MIB."
       MODULE -- this module
         MANDATORY-GROUPS { hrSystemGroup, hrStorageGroup,
                            hrDeviceGroup }

OBJECT hrSystemDate
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."

OBJECT hrSystemInitialLoadDevice
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."

OBJECT hrSystemInitialLoadParameters
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."

OBJECT hrStorageSize
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."


Page 34

OBJECT hrFSLastFullBackupDate
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."

OBJECT hrFSLastPartialBackupDate
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."

GROUP hrSWRunGroup
DESCRIPTION
"The Running Software Group. Implementation of this group is mandatory only when the
hrSWRunPerfGroup is implemented."

OBJECT hrSWRunStatus
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."

GROUP hrSWRunPerfGroup
DESCRIPTION
"The Running Software Performance Group.
Implementation of this group is at the discretion of the implementor."

GROUP hrSWInstalledGroup
DESCRIPTION
"The Installed Software Group.
Implementation of this group is at the discretion of the implementor."

       ::= { hrMIBCompliances 1 }

hrSystemGroup OBJECT-GROUP

           OBJECTS {
               hrSystemUptime, hrSystemDate,
               hrSystemInitialLoadDevice,
               hrSystemInitialLoadParameters,
               hrSystemNumUsers, hrSystemProcesses,
               hrSystemMaxProcesses
           }
           STATUS current
           DESCRIPTION
               "The Host Resources System Group."
           ::= { hrMIBGroups 1 }


Page 35

hrStorageGroup OBJECT-GROUP

           OBJECTS {
               hrMemorySize, hrStorageIndex, hrStorageType,
               hrStorageDescr, hrStorageAllocationUnits,
               hrStorageSize, hrStorageUsed,
               hrStorageAllocationFailures
           }
           STATUS current
           DESCRIPTION
               "The Host Resources Storage Group."
           ::= { hrMIBGroups 2 }

hrDeviceGroup OBJECT-GROUP

           OBJECTS {
               hrDeviceIndex, hrDeviceType, hrDeviceDescr,
               hrDeviceID, hrDeviceStatus, hrDeviceErrors,
               hrProcessorFrwID, hrProcessorLoad,
               hrNetworkIfIndex, hrPrinterStatus,
               hrPrinterDetectedErrorState,
               hrDiskStorageAccess, hrDiskStorageMedia,
               hrDiskStorageRemoveble, hrDiskStorageCapacity,
               hrPartitionIndex, hrPartitionLabel,
               hrPartitionID, hrPartitionSize,
               hrPartitionFSIndex, hrFSIndex, hrFSMountPoint,
               hrFSRemoteMountPoint, hrFSType, hrFSAccess,
               hrFSBootable, hrFSStorageIndex,
               hrFSLastFullBackupDate,
               hrFSLastPartialBackupDate
           }
           STATUS current
           DESCRIPTION
               "The Host Resources Device Group."
           ::= { hrMIBGroups 3 }

hrSWRunGroup OBJECT-GROUP

           OBJECTS {
               hrSWOSIndex, hrSWRunIndex, hrSWRunName,
               hrSWRunID, hrSWRunPath, hrSWRunParameters,
               hrSWRunType, hrSWRunStatus
           }
           STATUS current
           DESCRIPTION
               "The Host Resources Running Software Group."
           ::= { hrMIBGroups 4 }

hrSWRunPerfGroup OBJECT-GROUP
OBJECTS { hrSWRunPerfCPU, hrSWRunPerfMem }
STATUS current


Page 36

DESCRIPTION
"The Host Resources Running Software
Performance Group."

           ::= { hrMIBGroups 5 }

hrSWInstalledGroup OBJECT-GROUP

           OBJECTS {
               hrSWInstalledLastChange,
               hrSWInstalledLastUpdateTime,
               hrSWInstalledIndex, hrSWInstalledName,
               hrSWInstalledID, hrSWInstalledType,
               hrSWInstalledDate
           }
           STATUS current
           DESCRIPTION
               "The Host Resources Installed Software Group."
           ::= { hrMIBGroups 6 }

END

5 Type Definitions

   HOST-RESOURCES-TYPES DEFINITIONS ::= BEGIN

IMPORTS

     MODULE-IDENTITY, OBJECT-IDENTITY        FROM SNMPv2-SMI
     hrMIBAdminInfo, hrStorage, hrDevice     FROM HOST-RESOURCES-MIB;

hostResourcesTypesModule MODULE-IDENTITY

     LAST-UPDATED "200003060000Z"    -- 6 March, 2000
     ORGANIZATION "IETF Host Resources MIB Working Group"
     CONTACT-INFO
         "Steve Waldbusser
         Postal: Lucent Technologies, Inc.
                 1213 Innsbruck Dr.
                 Sunnyvale, CA 94089
                 USA
         Phone: 650-318-1251
         Fax:   650-318-1633
         Email: waldbusser@ins.com

In addition, the Host Resources MIB mailing list is dedicated to discussion of this MIB. To join the mailing list, send a request message to hostmib-request@andrew.cmu.edu. The mailing list address is hostmib@andrew.cmu.edu."
DESCRIPTION
"This MIB module registers type definitions for
storage types, device types, and file system types.


Page 37

After the initial revision, this module will be
maintained by IANA."

     REVISION "200003060000Z"    -- 6 March 2000
     DESCRIPTION
         "The original version of this module, published as RFC
         2790."
     ::= { hrMIBAdminInfo 4 }

   -- Registrations for some storage types, for use with hrStorageType
   hrStorageTypes          OBJECT IDENTIFIER ::= { hrStorage 1 }

hrStorageOther OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The storage type identifier used when no other defined type is appropriate."

       ::= { hrStorageTypes 1 }

hrStorageRam OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The storage type identifier used for RAM."

       ::= { hrStorageTypes 2 }

hrStorageVirtualMemory OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The storage type identifier used for virtual memory, temporary storage of swapped or paged memory."

       ::= { hrStorageTypes 3 }

hrStorageFixedDisk OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The storage type identifier used for non-removable rigid rotating magnetic storage devices."

       ::= { hrStorageTypes 4 }

hrStorageRemovableDisk OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The storage type identifier used for removable rigid rotating magnetic storage devices."

       ::= { hrStorageTypes 5 }

hrStorageFloppyDisk OBJECT-IDENTITY
STATUS current
DESCRIPTION


Page 38

"The storage type identifier used for non-rigid rotating magnetic storage devices."

       ::= { hrStorageTypes 6 }

hrStorageCompactDisc OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The storage type identifier used for read-only rotating optical storage devices."

       ::= { hrStorageTypes 7 }

hrStorageRamDisk OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The storage type identifier used for a file system that is stored in RAM."

       ::= { hrStorageTypes 8 }

hrStorageFlashMemory OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The storage type identifier used for flash memory."

       ::= { hrStorageTypes 9 }

hrStorageNetworkDisk OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The storage type identifier used for a
networked file system."

       ::= { hrStorageTypes 10 }

   -- Registrations for some device types, for use with hrDeviceType
   hrDeviceTypes             OBJECT IDENTIFIER ::= { hrDevice 1 }

hrDeviceOther OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The device type identifier used when no other defined type is appropriate."

       ::= { hrDeviceTypes 1 }

hrDeviceUnknown OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The device type identifier used when the device type is unknown."

       ::= { hrDeviceTypes 2 }


Page 39

hrDeviceProcessor OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The device type identifier used for a CPU."

       ::= { hrDeviceTypes 3 }

hrDeviceNetwork OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The device type identifier used for a network interface."

       ::= { hrDeviceTypes 4 }

hrDevicePrinter OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The device type identifier used for a printer."

       ::= { hrDeviceTypes 5 }

hrDeviceDiskStorage OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The device type identifier used for a disk drive."

       ::= { hrDeviceTypes 6 }

hrDeviceVideo OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The device type identifier used for a video device."

       ::= { hrDeviceTypes 10 }

hrDeviceAudio OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The device type identifier used for an audio device."

       ::= { hrDeviceTypes 11 }

hrDeviceCoprocessor OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The device type identifier used for a co-processor."

       ::= { hrDeviceTypes 12 }

hrDeviceKeyboard OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The device type identifier used for a keyboard device."

       ::= { hrDeviceTypes 13 }


Page 40

hrDeviceModem OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The device type identifier used for a modem."

       ::= { hrDeviceTypes 14 }

hrDeviceParallelPort OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The device type identifier used for a parallel port."

       ::= { hrDeviceTypes 15 }

hrDevicePointing OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The device type identifier used for a pointing device (e.g., a mouse)."

       ::= { hrDeviceTypes 16 }

hrDeviceSerialPort OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The device type identifier used for a serial port."

       ::= { hrDeviceTypes 17 }

hrDeviceTape OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The device type identifier used for a tape storage device."

       ::= { hrDeviceTypes 18 }

hrDeviceClock OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The device type identifier used for a clock device."

       ::= { hrDeviceTypes 19 }

hrDeviceVolatileMemory OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The device type identifier used for a volatile memory storage device."

       ::= { hrDeviceTypes 20 }

hrDeviceNonVolatileMemory OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The device type identifier used for a non-volatile memory


Page 41

storage device."

       ::= { hrDeviceTypes 21 }

   -- Registrations for some popular File System types,
   -- for use with hrFSType.
   hrFSTypes               OBJECT IDENTIFIER ::= { hrDevice 9 }

hrFSOther OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The file system type identifier used when no other defined type is appropriate."

       ::= { hrFSTypes 1 }

hrFSUnknown OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The file system type identifier used when the type of file system is unknown."

       ::= { hrFSTypes 2 }

hrFSBerkeleyFFS OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The file system type identifier used for the
Berkeley Fast File System."

       ::= { hrFSTypes 3 }

hrFSSys5FS OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The file system type identifier used for the
System V File System."

       ::= { hrFSTypes 4 }

hrFSFat OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The file system type identifier used for
DOS's FAT file system."

       ::= { hrFSTypes 5 }

hrFSHPFS OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The file system type identifier used for OS/2's
High Performance File System."

       ::= { hrFSTypes 6 }


Page 42

hrFSHFS OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The file system type identifier used for the
Macintosh Hierarchical File System."

       ::= { hrFSTypes 7 }

hrFSMFS OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The file system type identifier used for the
Macintosh File System."

       ::= { hrFSTypes 8 }

hrFSNTFS OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The file system type identifier used for the
Windows NT File System."

       ::= { hrFSTypes 9 }

hrFSVNode OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The file system type identifier used for the
VNode File System."

       ::= { hrFSTypes 10 }

hrFSJournaled OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The file system type identifier used for the
Journaled File System."

       ::= { hrFSTypes 11 }

hrFSiso9660 OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The file system type identifier used for the
ISO 9660 File System for CD's."

       ::= { hrFSTypes 12 }

hrFSRockRidge OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The file system type identifier used for the
RockRidge File System for CD's."

       ::= { hrFSTypes 13 }


Page 43

hrFSNFS OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The file system type identifier used for the
NFS File System."

       ::= { hrFSTypes 14 }

hrFSNetware OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The file system type identifier used for the
Netware File System."

       ::= { hrFSTypes 15 }

hrFSAFS OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The file system type identifier used for the
Andrew File System."

       ::= { hrFSTypes 16 }

hrFSDFS OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The file system type identifier used for the
OSF DCE Distributed File System."

       ::= { hrFSTypes 17 }

hrFSAppleshare OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The file system type identifier used for the
AppleShare File System."

       ::= { hrFSTypes 18 }

hrFSRFS OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The file system type identifier used for the
RFS File System."

       ::= { hrFSTypes 19 }

hrFSDGCFS OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The file system type identifier used for the
Data General DGCFS."

       ::= { hrFSTypes 20 }


Page 44

hrFSBFS OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The file system type identifier used for the
SVR4 Boot File System."

       ::= { hrFSTypes 21 }

hrFSFAT32 OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The file system type identifier used for the
Windows FAT32 File System."

       ::= { hrFSTypes 22 }

hrFSLinuxExt2 OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The file system type identifier used for the
Linux EXT2 File System."

       ::= { hrFSTypes 23 }

END

6 Internationalization Considerations

This MIB has many objects that identify file-system pathnames on the managed host. Many file systems allow pathnames to be encoded in a variety of character sets (other than ASCII), but do not support the encoding of the actual character set used with the pathname. The implementation strategy is that user interfaces (i.e. character-based shells or graphical applications) will have configuration options that control with which character set they will interpret and display all pathnames. This is often a per-user configuration (e.g. an environment variable), so that users using different languages and character sets on a multi-user system may each work effectively with their preferred character set. A human usually controls this configuration. If an application is not configured or is configured incorrectly, it will often have trouble displaying pathnames in the intended character set.

This situation made it important for this MIB to handle two issues:

1) Pathname objects must be able to transfer a variety of character sets with potentially multi-byte encodings; and,


Page 45

2) HostMIB agents will generally not be correctly configured for the appropriate character set to be used for all files on the system, particularly on a system with multiple users using different character sets. It was thus impossible to mandate that the agent tag pathnames with the character set in use.

These issues were solved with the introduction of the
InternationalDisplayString textual convention, which supports multi- byte encodings. Network management stations should use a local algorithm to determine which character set is in use and how it should be displayed. It is expected that network management station applications will rely on human configuration to choose which character set in which to interpret InternationalDisplayString objects, much like an application running locally on that host.

7 Security Considerations

There are a number of management objects defined in this MIB that have a MAX-ACCESS clause of read-write. Such objects may be considered sensitive or vulnerable in some network environments. The support for SET operations in a non-secure environment without proper protection can have a negative effect on system operations.

There are a number of managed objects in this MIB that may contain sensitive information. The objects in the Running Software Group list information about running software on the system (including the operating system software and version). Some may wish not to disclose to others what software they are running. Further, an inventory of the running software and versions may be helpful to an attacker who hopes to exploit software bugs in certain applications. The same issues exist for the objects in the Installed Software Group.

It is thus important to control even GET access to these objects and possibly to even encrypt the values of these object when sending them over the network via SNMP. Not all versions of SNMP provide features for such a secure environment.

SNMPv1 by itself is not a secure environment. Even if the network itself is secure (for example by using IPSec), even then, there is no control as to who on the secure network is allowed to access and GET/SET (read/change/create/delete) the objects in this MIB.

It is recommended that the implementers consider the security features as provided by the SNMPv3 framework. Specifically, the use of the User-based Security Model RFC 2574 [RFC2574] and the View- based Access Control Model RFC 2575 [RFC2575] is recommended.


Page 46

It is then a customer/user responsibility to ensure that the SNMP entity giving access to an instance of this MIB, is properly configured to give access to the objects only to those principals (users) that have legitimate rights to indeed GET or SET
(change/create/delete) them.

8 References

   [RFC2571]   Harrington, D., Presuhn, R. and B. Wijnen, "An
               Architecture for Describing SNMP Management Frameworks",
               RFC 2571, April 1999.

   [RFC1155]   Rose, M. and K. McCloghrie, "Structure and Identification
               of Management Information for TCP/IP-based Internets",
               STD 16, RFC 1155, May 1990.

   [RFC1212]   Rose, M. and K. McCloghrie, "Concise MIB Definitions",
               STD 16, RFC 1212, March 1991.

   [RFC1215]   Rose, M., "A Convention for Defining Traps for use with
               the SNMP", RFC 1215, March 1991.

   [RFC2578]   McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J.,
               Rose, M. and S. Waldbusser, "Structure of Management
               Information Version 2 (SMIv2)", STD 58, RFC 2578, April
               1999.

   [RFC2579]   McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J.,
               Rose, M. and S. Waldbusser, "Textual Conventions for
               SMIv2", STD 58, RFC 2579, April 1999.

   [RFC2580]   McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J.,
               Rose, M. and S. Waldbusser, "Conformance Statements for
               SMIv2", STD 58, RFC 2580, April 1999.

   [RFC1157]   Case, J., Fedor, M., Schoffstall, M. and J.  Davin,
               "Simple Network Management Protocol", STD 15, RFC 1157,
               May 1990.

   [RFC1901]   Case, J., McCloghrie, K., Rose, M. and S.  Waldbusser,
               "Introduction to Community-based SNMPv2", RFC 1901,
               January 1996.

   [RFC1906]   Case, J., McCloghrie, K., Rose, M. and S.  Waldbusser,
               "Transport Mappings for Version 2 of the Simple Network
               Management Protocol (SNMPv2)", RFC 1906, January 1996.


Page 47

   [RFC2572]   Case, J., Harrington D., Presuhn R. and B. Wijnen,
               "Message Processing and Dispatching for the Simple
               Network Management Protocol (SNMP)", RFC 2572, April 1999

   [RFC2574]   Blumenthal, U. and B. Wijnen, "User-based Security Model
               (USM) for version 3 of the Simple Network Management
               Protocol (SNMPv3)", RFC 2574, April 1999.

   [RFC1905]   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.

   [RFC2573]   Levi, D., Meyer, P. and B. Stewart, "SNMPv3
               Applications", RFC 2573, April 1999.

   [RFC2575]   Wijnen, B., Presuhn, R. and K. McCloghrie, "View-based
               Access Control Model (VACM) for the Simple Network
               Management Protocol (SNMP)", RFC 2575, April 1999.

   [RFC2570]   Case, J., Mundy, R., Partain, D. and B. Stewart,
               "Introduction to Version 3 of the Internet- standard
               Network Management Framework", RFC 2570, April 1999.

   [RFC1907]   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.

   [RFC2233]   McCloghrie, K. and F. Kastenholz, "The Interfaces Group
               MIB", RFC 2233, November 1997.

   [RFC2119]   Bradner, S., "Key words for use in RFCs to Indicate
               Requirement Levels", BCP 14, RFC 2119, March 1997.


Page 48

9 Acknowledgments

This document was produced by the Host Resources MIB working group.

Bobby Krupczak's efforts were particularly helpful in the creation of the draft standard version of this document.

In addition, the authors gratefully acknowledge the comments of the following individuals:

Amatzia Ben-Artzi NetManage

           Ron Bergman        Hitachi, Inc.
           Steve Bostock      Novell
           Stephen Bush       GE Information Systems
           Jeff Case          SNMP Research
           Chuck Davin        Bellcore
           Ray Edgarton       Bell Atlantic
           Mike Erlinger      Aerospace Corporation
           Tim Farley         Magee Enterprises
           Mark Kepke         Hewlett Packard
           Bobby Krupczak     Empire Technologies, Inc.
           Cheryl Krupczak    Empire Technologies, Inc.
           Harry Lewis        IBM Corp.
           Keith McCloghrie   Cisco Systems
           Greg Minshall      Novell
           Steve Moulton      SNMP Research
           Dave Perkins       Synoptics
           Ed Reeder          Objective Systems Integrators
           Mike Ritter        Apple Computer
           Marshall Rose      Dover Beach Consulting
           Jon Saperia        DEC
           Rodney Thayer      Sable Technology
           Kaj Tesink         Bellcore
           Dean Throop        Data General
           Bert Wijnen        Lucent
           Lloyd Young        Lexmark International


Page 49

10 Authors' Addresses

Pete Grillo
WeSync.com
1001 SW Fifth Ave, Fifth Floor
Portland, OR 97204

Phone: 503-425-5051
Fax: 503-827-6718
email: pete@wesync.com
Phone: +1 503 827 6717

Steven Waldbusser
Lucent Technologies, Inc.
1213 Innsbruck Dr.
Sunnyvale CA 94089

Phone: +1 650 318 1251

   Fax:   +1 650 318 1633
   EMail: waldbusser@ins.com

11 Intellectual Property

The IETF takes no position regarding the validity or scope of any intellectual property or other rights that might be
claimed to pertain to the implementation or use of the
technology described in this document or the extent to which any license under such rights might or might not be available; neither does it represent that it has made any effort to
identify any such rights. Information on the IETF's
procedures with respect to rights in standards-track and
standards-related documentation can be found in BCP-11.
Copies of claims of rights made available for publication and any assurances of licenses to be made available, or the result of an attempt made to obtain a general license or permission for the use of such proprietary rights by implementors or users of this specification can be obtained from the IETF Secretariat.

The IETF invites any interested party to bring to its
attention any copyrights, patents or patent applications, or other proprietary rights which may cover technology that may be required to practice this standard. Please address the information to the IETF Executive Director.


Page 50

12 Full Copyright Statement

Copyright © The Internet Society (2000). All Rights Reserved.

This document and translations of it may be copied and furnished to others, and derivative works that comment on or otherwise explain it or assist in its implementation may be prepared, copied, published and distributed, in whole or in part, without restriction of any kind, provided that the above copyright notice and this paragraph are included on all such copies and derivative works. However, this document itself may not be modified in any way, such as by removing the copyright notice or references to the Internet Society or other Internet organizations, except as needed for the purpose of developing Internet standards in which case the procedures for copyrights defined in the Internet Standards process must be followed, or as required to translate it into languages other than English.

The limited permissions granted above are perpetual and will not be revoked by the Internet Society or its successors or assigns.

This document and the information contained herein is provided on an "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

Acknowledgement

Funding for the RFC Editor function is currently provided by the Internet Society.