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212 lines
7.1 KiB
Plaintext
212 lines
7.1 KiB
Plaintext
ATM-DXI-MIB DEFINITIONS ::= BEGIN
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IMPORTS
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enterprises
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FROM RFC1155-SMI
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OBJECT-TYPE
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FROM RFC-1212;
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atmForum OBJECT IDENTIFIER ::= { enterprises 353 }
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atmUniDxi OBJECT IDENTIFIER ::= { atmForum 3 }
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-- This MIB is intended to be used in either of two scenarios.
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-- In the first scenario, the DTE acts as a proxy for the DCE(s),
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-- while, in the second scenario, the DCE contains an independent
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-- SNMP agent and responds to SNMP requests directly.
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--
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-- In both these scenarios, specific DXI interfaces are identified
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-- by a single integer-valued index. In the first scenario, the
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-- DXI interfaces that connect directly to the DTE are identified
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-- by the DTE's corresponding value of ifIndex. The DXI interfaces
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-- that connect to the DCE are assigned interface numbers.
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-- For example, see the figure below.
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-- In this example, the numbers 4 and 5 are assigned to those
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-- DXI interfaces that are connected to the DCE(s). The assignment
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-- of numbers to these interfaces is implementation dependent.
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-- An SNMP management station will see these as interfaces of a
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-- special type (assigned by the IETF).
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-- In the second scenario, all the DXI interfaces correspond
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-- directly to DCE interfaces. In this case, all corresponding
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-- instances are identified by IfIndices assigned by the DCE.
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--
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-- In the UNI ATM Cell Header, the VPI/VCI fields together
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-- comprise a 24-bit field. The eight most significant bits
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-- constitute the VPI subfield, and the least significant
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-- sixteen bits constitute the VCI subfield. All zeros is an
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-- invalid value and on ATM interfaces is used to designate a
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-- null (or empty or unassigned) cell. Thus the valid VPI/VCI
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-- values are in the range 1 thru 2**24-1 inclusive. These
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-- values are used for indexing certain tables in the ATM
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-- MIB(s).
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-- The ATM Data Exchange Interface (DXI) object reflects
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-- information about an ATM DXI between an ATM DCE (e.g., a DSU)
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-- and a DTE (e.g., a Router/Host). In particular, it contains both
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-- configuration and performance information specific to the
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-- DXI. Each DXI instance typically corresponds to several DFAs.
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-- With a 24-bit DFA, the range of valid DFA index values is
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-- 1 thru 2**24 inclusive. Note that the 24-bit binary DFA
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-- field (with values 0 thru 2**24-1) from the DXI
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-- header must be incremented by one to yield the DFA index
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-- for accessing the tables in the MIB. The DFA consisting of
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-- all zeros (with corresponding MIB index value of 1) is
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-- reserved for the DXI Local Management Interface (LMI) with
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-- the ATM DTE.
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Dfa ::= INTEGER (1..16777215)
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-- *** For the DCEs, the mapping between the DXI
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-- *** DFA and the ATM VPI/VCI is fixed. The LMI DFA has no
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-- *** corresponding VPI/VCI. (Refer to Annex A for the bit mapping.)
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atmDxi OBJECT IDENTIFIER ::= { atmUniDxi 2 }
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---
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--- This table is mandatory if supporting ATM DXI.
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---
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atmDxiConfTable OBJECT-TYPE
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SYNTAX SEQUENCE OF AtmDxiConfEntry
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ACCESS not-accessible
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STATUS mandatory
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DESCRIPTION
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"This table contains
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ATM DXI configuration information
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including information on the mode supported
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across the DXI."
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::= { atmDxi 2 }
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atmDxiConfEntry OBJECT-TYPE
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SYNTAX AtmDxiConfEntry
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ACCESS not-accessible
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STATUS mandatory
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DESCRIPTION
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"This list contains ATM DXI configuration information."
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INDEX { atmDxiConfIfIndex }
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::= { atmDxiConfTable 1 }
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AtmDxiConfEntry ::=
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SEQUENCE {
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atmDxiConfIfIndex
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INTEGER,
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atmDxiConfMode
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INTEGER
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}
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atmDxiConfIfIndex OBJECT-TYPE
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SYNTAX INTEGER
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ACCESS read-only
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STATUS mandatory
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DESCRIPTION
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"The value of this object identifies, for SNMP, the ATM DXI
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interface for which this entry contains management information.
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This is the same value as used to identify the IfEntry describing
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the DCE interface. Management uses and expects this value. In
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the proxy mode of operation, the DCE always treats this as 0, but
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preserves it in its response to the DTE. 0, the DXI value, means
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the interface over which the DXI LMI request was received."
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::= { atmDxiConfEntry 2 }
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atmDxiConfMode OBJECT-TYPE
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SYNTAX INTEGER {
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mode1a (1),
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mode1b (2),
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mode2 (3)
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}
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ACCESS read-write
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STATUS mandatory
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DESCRIPTION
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"This object identifies the dxi mode being
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used at the atm dxi port."
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::= { atmDxiConfEntry 3 }
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atmDxiDFAConfTable OBJECT-TYPE
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SYNTAX SEQUENCE OF AtmDxiDFAConfEntry
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ACCESS not-accessible
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STATUS mandatory
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DESCRIPTION
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"This table contains configuration information about
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a particular DFA."
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::= { atmDxi 3 }
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atmDxiDFAConfEntry OBJECT-TYPE
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SYNTAX AtmDxiDFAConfEntry
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ACCESS not-accessible
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STATUS mandatory
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DESCRIPTION
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"This list contains ATM DXI DFA configuration
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information."
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INDEX { atmDxiDFAConfIfIndex, atmDxiDFAConfDfaIndex }
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::= { atmDxiDFAConfTable 1 }
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AtmDxiDFAConfEntry ::=
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SEQUENCE {
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atmDxiDFAConfIfIndex
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INTEGER,
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atmDxiDFAConfDfaIndex
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Dfa,
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atmDxiDFAConfAALType
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INTEGER
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}
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atmDxiDFAConfIfIndex OBJECT-TYPE
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SYNTAX INTEGER
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ACCESS read-only
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STATUS mandatory
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DESCRIPTION
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"The value of this object identifies, for SNMP, the ATM DXI
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interface for which this entry contains management information.
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This is the same value as used to identify the IfEntry describing
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the DCE interface. Management uses and expects this value. In
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the proxy mode of operation, the DCE always treats this as 0, but
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preserves it in its response to the DTE. 0, the DXI value, means
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the interface over which the DXI LMI request was received."
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::= { atmDxiDFAConfEntry 1 }
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atmDxiDFAConfDfaIndex OBJECT-TYPE
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SYNTAX Dfa
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ACCESS read-only
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STATUS mandatory
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DESCRIPTION
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"This object identifies the DFA instance on the DXI
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identified by atmDxiDFAConfIfIndex."
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::= { atmDxiDFAConfEntry 2 }
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atmDxiDFAConfAALType OBJECT-TYPE
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SYNTAX INTEGER {
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unknown (1),
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none (2),
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aal34 (3),
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aal5 (4)
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}
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ACCESS read-write
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STATUS mandatory
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DESCRIPTION
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"This object identifies the AAL type supported at this DFA.
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Note, if mode 2 is supported on the DXI identified by the
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corresponding instance of atmDxiDFAConfIfIndex and that
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instance of atmDxiDFAConfIfIndex identifies the DCE side
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of the DXI, then this object contains the AAL Type being
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run on the corresponding VPI/VCI on the corresponding ATM UNI
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interface."
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::= { atmDxiDFAConfEntry 3 }
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-- The following definition is for use only in Trap PDUs
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atmDxiEnterprise OBJECT-TYPE
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SYNTAX OBJECT IDENTIFIER
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ACCESS not-accessible
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STATUS mandatory
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DESCRIPTION
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"This object is included as the first ID-Value pair
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in a Trap PDU for which the Generic Trap Type field
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has the value 'enterpriseSpecific'. The value of the
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object identifies the enterprise under whose authority
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the value of the Enterprise Trap Type field is defined."
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::= { atmDxi 4 }
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-- End of definitions for ATM DXI-MIB
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END
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