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