DISMAN-NSLOOKUP-MIB.txt
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上传日期:2007-10-30
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SNMP编程
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- DISMAN-NSLOOKUP-MIB DEFINITIONS ::= BEGIN
- IMPORTS
- MODULE-IDENTITY, OBJECT-TYPE,
- Unsigned32, mib-2, Integer32
- FROM SNMPv2-SMI -- RFC2578
- RowStatus
- FROM SNMPv2-TC -- RFC2579
- MODULE-COMPLIANCE, OBJECT-GROUP
- FROM SNMPv2-CONF -- RFC2580
- SnmpAdminString
- FROM SNMP-FRAMEWORK-MIB -- RFC2571
- InetAddressType, InetAddress
- FROM INET-ADDRESS-MIB; -- RFC2851
- lookupMIB MODULE-IDENTITY
- LAST-UPDATED "200009210000Z" -- 21 September 2000
- ORGANIZATION "IETF Distributed Management Working Group"
- CONTACT-INFO
- "Kenneth White
- International Business Machines Corporation
- Network Computing Software Division
- Research Triangle Park, NC, USA
- E-mail: wkenneth@us.ibm.com"
- DESCRIPTION
- "The Lookup MIB (DISMAN-NSLOOKUP-MIB) enables determination
- of either the name(s) corresponding to a host address or of
- the address(es) associated with a host name at a remote host."
- -- Revision history
- REVISION "200009210000Z" -- 21 September 2000
- DESCRIPTION
- "Initial version, published as RFC 2925."
- ::= { mib-2 82 }
- -- Top level structure of the MIB
- lookupObjects OBJECT IDENTIFIER ::= { lookupMIB 1 }
- lookupConformance OBJECT IDENTIFIER ::= { lookupMIB 2 }
- -- Simple Object Definitions
- lookupMaxConcurrentRequests OBJECT-TYPE
- SYNTAX Unsigned32
- UNITS "requests"
- MAX-ACCESS read-write
- STATUS current
- DESCRIPTION
- "The maximum number of concurrent active lookup requests
- that are allowed within an agent implementation. A value
- of 0 for this object implies that there is no limit for
- the number of concurrent active requests in effect."
- DEFVAL { 10 }
- ::= { lookupObjects 1 }
- lookupPurgeTime OBJECT-TYPE
- SYNTAX Unsigned32 (0..86400)
- UNITS "seconds"
- MAX-ACCESS read-write
- STATUS current
- DESCRIPTION
- "The amount of time to wait before automatically
- deleting an entry in the lookupCtlTable and any
- dependent lookupResultsTable entries
- after the lookup operation represented by an
- lookupCtlEntry has completed.
- An lookupCtEntry is considered complete
- when its lookupCtlOperStatus object has a
- value of completed(3)."
- DEFVAL { 900 } -- 15 minutes as default
- ::= { lookupObjects 2 }
- -- Lookup Control Table
- lookupCtlTable OBJECT-TYPE
- SYNTAX SEQUENCE OF LookupCtlEntry
- MAX-ACCESS not-accessible
- STATUS current
- DESCRIPTION
- "Defines the Lookup Control Table for providing
- the capability of performing a lookup operation,
- gethostbyname or gethostbyaddr, from a remote host."
- ::= { lookupObjects 3 }
- lookupCtlEntry OBJECT-TYPE
- SYNTAX LookupCtlEntry
- MAX-ACCESS not-accessible
- STATUS current
- DESCRIPTION
- "Defines an entry in the lookupCtlTable. A
- lookupCtlEntry is initially indexed by
- lookupCtlOwnerIndex, which is of type SnmpAdminString,
- a textual convention that allows for use of the SNMPv3
- View-Based Access Control Model (RFC 2575 [11], VACM)
- and also allows an management application to identify
- its entries. The second index element,
- lookupCtlOperationName, enables the same
- lookupCtlOwnerIndex entity to have multiple outstanding
- requests.
- The value of lookupCtlTargetAddressType determines which
- lookup function to perform. Specification of dns(16)
- as the value of this index implies that the gethostbyname
- function should be performed to determine the numeric
- addresses associated with a symbolic name via
- lookupResultsTable entries. Use of a value of either
- ipv4(1) or ipv6(2) implies that the gethostbyaddr function
- should be performed to determine the symbolic name(s)
- associated with a numeric address at a remote host."
- INDEX {
- lookupCtlOwnerIndex,
- lookupCtlOperationName
- }
- ::= { lookupCtlTable 1 }
- LookupCtlEntry ::=
- SEQUENCE {
- lookupCtlOwnerIndex SnmpAdminString,
- lookupCtlOperationName SnmpAdminString,
- lookupCtlTargetAddressType InetAddressType,
- lookupCtlTargetAddress InetAddress,
- lookupCtlOperStatus INTEGER,
- lookupCtlTime Unsigned32,
- lookupCtlRc Integer32,
- lookupCtlRowStatus RowStatus
- }
- lookupCtlOwnerIndex OBJECT-TYPE
- SYNTAX SnmpAdminString (SIZE(0..32))
- MAX-ACCESS not-accessible
- STATUS current
- DESCRIPTION
- "To facilitate the provisioning of access control by a
- security administrator using the View-Based Access
- Control Model (RFC 2575, VACM) for tables in which
- multiple users may need to independently create or
- modify entries, the initial index is used as an 'owner
- index'. Such an initial index has a syntax of
- SnmpAdminString, and can thus be trivially mapped to a
- securityName or groupName as defined in VACM, in
- accordance with a security policy.
- When used in conjunction with such a security policy all
- entries in the table belonging to a particular user (or
- group) will have the same value for this initial index.
- For a given user's entries in a particular table, the
- object identifiers for the information in these entries
- will have the same subidentifiers (except for the
- 'column' subidentifier) up to the end of the encoded
- owner index. To configure VACM to permit access to this
- portion of the table, one would create
- vacmViewTreeFamilyTable entries with the value of
- vacmViewTreeFamilySubtree including the owner index
- portion, and vacmViewTreeFamilyMask 'wildcarding' the
- column subidentifier. More elaborate configurations
- are possible."
- ::= { lookupCtlEntry 1 }
- lookupCtlOperationName OBJECT-TYPE
- SYNTAX SnmpAdminString (SIZE(0..32))
- MAX-ACCESS not-accessible
- STATUS current
- DESCRIPTION
- "The name of a lookup operation. This is locally unique,
- within the scope of an lookupCtlOwnerIndex."
- ::= { lookupCtlEntry 2 }
- lookupCtlTargetAddressType OBJECT-TYPE
- SYNTAX InetAddressType
- MAX-ACCESS read-create
- STATUS current
- DESCRIPTION
- "Specifies the type of address for either performing a
- gethostbyname or a gethostbyaddr function at a remote host.
- Specification of dns(16) as the value for this object
- means that the gethostbyname function should be performed
- to return one or more numeric addresses. Use of a value
- of either ipv4(1) or ipv6(2) means that the gethostbyaddr
- function should be used to return the symbolic names
- associated with a remote host."
- ::= { lookupCtlEntry 3 }
- lookupCtlTargetAddress OBJECT-TYPE
- SYNTAX InetAddress
- MAX-ACCESS read-create
- STATUS current
- DESCRIPTION
- "Specifies the address used for a resolver lookup at a
- remote host. The corresponding lookupCtlAddressType
- objects determines its type as well as the function
- that can be requested.
- A value for this object MUST be set prior to
- transitioning its corresponding lookupCtlEntry to
- active(1) via lookupCtlRowStatus."
- ::= { lookupCtlEntry 4 }
- lookupCtlOperStatus OBJECT-TYPE
- SYNTAX INTEGER {
- notStarted(2), -- operation has not started
- completed(3) -- operation is done
- }
- MAX-ACCESS read-only
- STATUS current
- DESCRIPTION
- "Reflects the operational state of an lookupCtlEntry:
- enabled(1) - Operation is active.
- notStarted(2) - Operation has not been enabled.
- completed(3) - Operation has completed.
- An operation is automatically enabled(1) when its
- lookupCtlRowStatus object is transitioned to active(1)
- status. Until this occurs lookupCtlOperStatus MUST
- report a value of notStarted(2). After the lookup
- operation completes (success or failure) the value
- for lookupCtlOperStatus MUST be transitioned to
- completed(3)."
- ::= { lookupCtlEntry 5 }
- lookupCtlTime OBJECT-TYPE
- SYNTAX Unsigned32
- UNITS "milliseconds"
- MAX-ACCESS read-only
- STATUS current
- DESCRIPTION
- "Reports the number of milliseconds that a lookup
- operation required to be completed at a remote host.
- Completed means operation failure as well as
- success."
- ::= { lookupCtlEntry 6 }
- lookupCtlRc OBJECT-TYPE
- SYNTAX Integer32
- MAX-ACCESS read-only
- STATUS current
- DESCRIPTION
- "The system specific return code from a lookup
- operation. All implementations MUST return a value
- of 0 for this object when the remote lookup
- operation succeeds. A non-zero value for this
- objects indicates failure. It is recommended that
- implementations that support errno use it as the
- value of this object to aid a management
- application in determining the cause of failure."
- ::= { lookupCtlEntry 7 }
- lookupCtlRowStatus OBJECT-TYPE
- SYNTAX RowStatus
- MAX-ACCESS read-create
- STATUS current
- DESCRIPTION
- "This object allows entries to be created and deleted
- in the lookupCtlTable.
- A remote lookup operation is started when an
- entry in this table is created via an SNMP SET
- request and the entry is activated. This
- occurs by setting the value of this object
- to CreateAndGo(4) during row creation or
- by setting this object to active(1) after
- the row is created.
- A value MUST be specified for lookupCtlTargetAddress
- prior to a transition to active(1) state being
- accepted.
- A remote lookup operation starts when its entry
- first becomes active(1). Transitions in and
- out of active(1) state have no effect on the
- operational behavior of a remote lookup
- operation, with the exception that deletion of
- an entry in this table by setting its RowStatus
- object to destroy(6) will stop an active
- remote lookup operation.
- The operational state of a remote lookup operation
- can be determined by examination of its
- lookupCtlOperStatus object."
- REFERENCE
- "See definition of RowStatus in RFC 2579,
- 'Textual Conventions for SMIv2.'"
- ::= { lookupCtlEntry 8 }
- -- Lookup Results Table
- lookupResultsTable OBJECT-TYPE
- SYNTAX SEQUENCE OF LookupResultsEntry
- MAX-ACCESS not-accessible
- STATUS current
- DESCRIPTION
- "Defines the Lookup Results Table for providing
- the capability of determining the results of a
- operation at a remote host.
- One or more entries are added to the
- lookupResultsTable when a lookup operation,
- as reflected by an lookupCtlEntry, completes
- successfully. All entries related to a
- successful lookup operation MUST be added
- to the lookupResultsTable at the same time
- that the associating lookupCtlOperStatus
- object is transitioned to completed(2).
- The number of entries added depends on the
- results determined for a particular lookup
- operation. All entries associated with an
- lookupCtlEntry are removed when the
- lookupCtlEntry is deleted.
- A remote host can be multi-homed and have more
- than one IP address associated with it
- (gethostbyname results) and/or it can have more
- than one symbolic name (gethostbyaddr results).
- The gethostbyaddr function is called with a
- host address as its parameter and is used
- primarily to determine a symbolic name to
- associate with the host address. Entries in
- the lookupResultsTable MUST be made for each
- host name returned. The official host name MUST
- be assigned a lookupResultsIndex of 1.
- The gethostbyname function is called with a
- symbolic host name and is used primarily to
- retrieve a host address. If possible the
- primary host address SHOULD be assigned a
- lookupResultsIndex of 1."
- ::= { lookupObjects 4 }
- lookupResultsEntry OBJECT-TYPE
- SYNTAX LookupResultsEntry
- MAX-ACCESS not-accessible
- STATUS current
- DESCRIPTION
- "Defines an entry in the lookupResultsTable. The
- first two index elements identify the
- lookupCtlEntry that a lookupResultsEntry belongs
- to. The third index element selects a single
- lookup operation result."
- INDEX {
- lookupCtlOwnerIndex,
- lookupCtlOperationName,
- lookupResultsIndex
- }
- ::= { lookupResultsTable 1 }
- LookupResultsEntry ::=
- SEQUENCE {
- lookupResultsIndex Unsigned32,
- lookupResultsAddressType InetAddressType,
- lookupResultsAddress InetAddress
- }
- lookupResultsIndex OBJECT-TYPE
- SYNTAX Unsigned32 (1..'ffffffff'h)
- MAX-ACCESS not-accessible
- STATUS current
- DESCRIPTION
- "Entries in the lookupResultsTable are created when
- the result of a lookup operation is determined.
- Entries MUST be stored in the lookupResultsTable in
- the order that they are retrieved. Values assigned
- to lookupResultsIndex MUST start at 1 and increase
- in order."
- ::= { lookupResultsEntry 1 }
- lookupResultsAddressType OBJECT-TYPE
- SYNTAX InetAddressType
- MAX-ACCESS read-only
- STATUS current
- DESCRIPTION
- "Indicates the type of result of a remote lookup
- operation. A value of unknown(0) implies that
- either the operation hasn't been started or that
- it has failed."
- ::= { lookupResultsEntry 2 }
- lookupResultsAddress OBJECT-TYPE
- SYNTAX InetAddress
- MAX-ACCESS read-only
- STATUS current
- DESCRIPTION
- "Reflects a result for a remote lookup operation
- as per the value of lookupResultsAddressType."
- ::= { lookupResultsEntry 3 }
- -- Conformance information
- -- Compliance statements
- lookupCompliances OBJECT IDENTIFIER ::= { lookupConformance 1 }
- lookupGroups OBJECT IDENTIFIER ::= { lookupConformance 2 }
- -- Compliance statements
- lookupCompliance MODULE-COMPLIANCE
- STATUS current
- DESCRIPTION
- "The compliance statement for the DISMAN-NSLOOKUP-MIB."
- MODULE -- this module
- MANDATORY-GROUPS {
- lookupGroup
- }
- OBJECT lookupMaxConcurrentRequests
- MIN-ACCESS read-only
- DESCRIPTION
- "The agent is not required to support SET
- operations to this object."
- OBJECT lookupPurgeTime
- MIN-ACCESS read-only
- DESCRIPTION
- "The agent is not required to support a SET
- operation to this object."
- ::= { lookupCompliances 1 }
- -- MIB groupings
- lookupGroup OBJECT-GROUP
- OBJECTS {
- lookupMaxConcurrentRequests,
- lookupPurgeTime,
- lookupCtlOperStatus,
- lookupCtlTargetAddressType,
- lookupCtlTargetAddress,
- lookupCtlTime,
- lookupCtlRc,
- lookupCtlRowStatus,
- lookupResultsAddressType,
- lookupResultsAddress
- }
- STATUS current
- DESCRIPTION
- "The group of objects that comprise the remote
- Lookup operation."
- ::= { lookupGroups 1 }
- END