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Current File : //usr/share/mibs/ietf/FR-ATM-PVC-SERVICE-IWF-MIB
FR-ATM-PVC-SERVICE-IWF-MIB DEFINITIONS ::= BEGIN

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



              RowStatus, TimeStamp                    FROM SNMPv2-TC

              MODULE-COMPLIANCE, OBJECT-GROUP,
              NOTIFICATION-GROUP                      FROM SNMPv2-CONF

              AtmVpIdentifier, AtmVcIdentifier        FROM ATM-TC-MIB

              atmVclEntry                             FROM ATM-MIB

              InterfaceIndex                          FROM IF-MIB;

         frAtmIwfMIB MODULE-IDENTITY
             LAST-UPDATED "200009280000Z" -- September 28, 2000
             ORGANIZATION "IETF Frame Relay Service MIB Working Group"
             CONTACT-INFO
                 "WG Charter:
                    http://www.ietf.org/html.charters/frnetmib-charter
                  WG-email:
                    frnetmib@sunroof.eng.sun.com
                  Subscribe:
                    frnetmib-request@sunroof.eng.sun.com
                  Email Archive:
                    ftp://ftp.ietf.org/ietf-mail-archive/frnetmib

                  Chair:      Andy Malis
                              Vivace Networks, Inc.
                  Email:      Andy.Malis@vivacenetworks.com

                  WG editor:  Kenneth Rehbehn
                              Megisto Systems, Inc.
                  Email:      krehbehn@megisto.com

                  Co-author:  Orly Nicklass
                              RAD Data Communications Ltd.
                  EMail:      orly_n@rad.co.il

                  Co-author:  George Mouradian
                              AT&T Labs
                  EMail:      gvm@att.com"

             DESCRIPTION
                     "The MIB module for monitoring and controlling the
                     Frame Relay/ATM PVC Service Interworking
                     Function."

             --
             -- Revision History
             --


             REVISION "200009280000Z"
             DESCRIPTION
                  "Published as RFC 2955"

         ::= { mib-2 86 }

         --
         -- Object Identifiers
         --
            frAtmIwfMIBObjects      OBJECT IDENTIFIER
                                         ::= { frAtmIwfMIB 1 }

            frAtmIwfTraps           OBJECT IDENTIFIER
                                         ::= { frAtmIwfMIB 2 }
            frAtmIwfTrapsPrefix     OBJECT IDENTIFIER
                                         ::= { frAtmIwfTraps 0 }

            frAtmIwfConformance     OBJECT IDENTIFIER
                                         ::= { frAtmIwfMIB 3 }
            frAtmIwfGroups          OBJECT IDENTIFIER
                                         ::= { frAtmIwfConformance 1 }
            frAtmIwfCompliances     OBJECT IDENTIFIER
                                         ::= { frAtmIwfConformance 2 }

         --
         --  The FR/ATM PVC Service IWF Group
         --
         --      The Frame Relay/ATM PVC Service Interworking Function
         --      Connection Table contains all connections utilizing
         --      the interworking function.
         --

         frAtmIwfConnIndexNext OBJECT-TYPE
              SYNTAX         Integer32 (0..2147483647)
              MAX-ACCESS     read-only
              STATUS         current
              DESCRIPTION
                     "This object contains an appropriate value to be
                     used for frAtmIwfConnIndex  when creating entries
                     in the frAtmIwfConnectionTable. The value 0
                     indicates that no unassigned entries are
                     available. To obtain the frAtmIwfConnIndexNext
                     value for a new entry, the manager issues a
                     management protocol retrieval operation to obtain
                     the current value of this object.  After each
                     retrieval, the agent should modify the value to
                     the next unassigned index."
              ::= { frAtmIwfMIBObjects 1 }


         frAtmIwfConnectionTable OBJECT-TYPE
             SYNTAX      SEQUENCE OF FrAtmIwfConnectionEntry
             MAX-ACCESS  not-accessible
             STATUS      current
             DESCRIPTION
                     "A table in which each row represents a Frame
                     Relay/ATM interworking connection."
             ::= { frAtmIwfMIBObjects 2 }

         frAtmIwfConnectionEntry OBJECT-TYPE
             SYNTAX      FrAtmIwfConnectionEntry
             MAX-ACCESS  not-accessible
             STATUS      current
             DESCRIPTION
                     "The FrAtmIwfConnectionEntry provides an entry for
                     an interworking connection between a frame relay
                     PVC and one or more ATM PVCs, or an ATM PVC and
                     one or more frame relay PVCs.  A single frame
                     relay PVC connected to a single ATM PVC is
                     referred to as a `point-to-point' connection and
                     is represented by a single row in the FR/ATM IWF
                     Connection Table.  The case of a single frame
                     relay PVC connected to multiple ATM PVCs (or
                     single ATM PVC connected to multiple frame relay
                     PVCs) is referred to as a `point-to-multipoint'
                     connection and is represented by multiple rows in
                     the FR/ATM IWF Connection Table.

                     The object frAtmIwfConnIndex uniquely identifies
                     each point-to-point or point-to-multipoint
                     connection.  The manager obtains the
                     frAtmIwfConnIndex value by reading the
                     frAtmIwfConnIndexNext object.

                     After a frAtmIwfConnIndex is assigned for the
                     connection, the manager creates one or more rows
                     in the Cross Connect Table; one for each cross-
                     connection between the frame relay PVC and an ATM
                     PVC. In the case of `point-to-multipoint'
                     connections, all rows are indexed by the same
                     frAtmIwfConnIndex value and MUST refer to the same
                     frame relay PVC or ATM PVC respectively.  An entry
                     can be created only when at least one pair of
                     frame relay and ATM PVCs exist.

                     A row can be established by one-step set-request
                     with all required parameter values and
                     frAtmIwfConnRowStatus set to createAndGo(4). The


                     Agent should perform all error checking as needed.
                     A pair of cross-connected PVCs, as identified by a
                     particular value of the indexes, is released by
                     setting frAtmIwfConnRowStatus to destroy(6). The
                     Agent may release all associated resources. The
                     manager may remove the related PVCs thereafter.
                     Indexes are persistent across reboots of the
                     system."
             INDEX   { frAtmIwfConnIndex,
                       frAtmIwfConnAtmPort,
                       frAtmIwfConnVpi,
                       frAtmIwfConnVci,
                       frAtmIwfConnFrPort,
                       frAtmIwfConnDlci
                     }
             ::= { frAtmIwfConnectionTable 1 }

         FrAtmIwfConnectionEntry ::=
             SEQUENCE {
                 frAtmIwfConnIndex                      Integer32,
                 frAtmIwfConnAtmPort                    InterfaceIndex,
                 frAtmIwfConnVpi                        AtmVpIdentifier,
                 frAtmIwfConnVci                        AtmVcIdentifier,
                 frAtmIwfConnFrPort                     InterfaceIndex,
                 frAtmIwfConnDlci                       Integer32,
                 frAtmIwfConnRowStatus                  RowStatus,
                 frAtmIwfConnAdminStatus                INTEGER,
                 frAtmIwfConnAtm2FrOperStatus           INTEGER,
                 frAtmIwfConnAtm2FrLastChange           TimeStamp,
                 frAtmIwfConnFr2AtmOperStatus           INTEGER,
                 frAtmIwfConnFr2AtmLastChange           TimeStamp,
                 frAtmIwfConnectionDescriptor           Integer32,
                 frAtmIwfConnFailedFrameTranslate       Counter32,
                 frAtmIwfConnOverSizedFrames            Counter32,
                 frAtmIwfConnFailedAal5PduTranslate     Counter32,
                 frAtmIwfConnOverSizedSDUs              Counter32,
                 frAtmIwfConnCrcErrors                  Counter32,
                 frAtmIwfConnSarTimeOuts                Counter32
         }

         frAtmIwfConnIndex  OBJECT-TYPE
             SYNTAX      Integer32  (1..2147483647)
             MAX-ACCESS  not-accessible
             STATUS      current
             DESCRIPTION
                     "A unique value for each point-to-point or point-
                     to-multipoint connection.  The manager obtains the
                     frAtmIwfConnIndex value by reading the


                     frAtmIwfConnIndexNext object.  A point-to-
                     multipoint connection will be represented in the
                     frAtmIwfConnectionTable with multiple entries that
                     share the same frAtmIwfConnIndex value."
             ::= { frAtmIwfConnectionEntry 1 }

         frAtmIwfConnAtmPort OBJECT-TYPE
             SYNTAX      InterfaceIndex
             MAX-ACCESS  not-accessible
             STATUS      current
             DESCRIPTION
                     "The index in the ifTable that identifies the ATM
                     port for this interworking connection."
             ::= { frAtmIwfConnectionEntry 2 }

         frAtmIwfConnVpi OBJECT-TYPE
             SYNTAX      AtmVpIdentifier
             MAX-ACCESS  not-accessible
             STATUS      current
             DESCRIPTION
                     "The VPI of the ATM PVC end point for this
                      interworking connection."
             ::= { frAtmIwfConnectionEntry 3 }

         frAtmIwfConnVci OBJECT-TYPE
             SYNTAX      AtmVcIdentifier
             MAX-ACCESS  not-accessible
             STATUS      current
             DESCRIPTION
                     "The VCI of the ATM PVC end point for this
                     interworking
                      connection."
             ::= { frAtmIwfConnectionEntry 4 }

         frAtmIwfConnFrPort OBJECT-TYPE
             SYNTAX      InterfaceIndex
             MAX-ACCESS  not-accessible
             STATUS      current
             DESCRIPTION
                     "The index in the ifTable that identifies the
                     frame relay port for this interworking
                     connection."
             ::= { frAtmIwfConnectionEntry 5 }

         frAtmIwfConnDlci OBJECT-TYPE
             SYNTAX      Integer32 (16..4194303)
             MAX-ACCESS  not-accessible
             STATUS      current


             DESCRIPTION
                     "The DLCI that identifies the frame relay PVC end
                     point for this interworking connection."
             ::= { frAtmIwfConnectionEntry 6 }

         frAtmIwfConnRowStatus OBJECT-TYPE
             SYNTAX      RowStatus
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                     "The table row may be created with
                     'createAndWait(5)' or 'createAndGo(4)'.
                     To activate a connection entry, a valid connection
                     descriptor MUST be established in the
                     frAtmIwfConnectionDescriptor object.

                     This object is set to 'destroy(6)' to delete the
                     table row.  Before the table row is destroyed, the
                     OperStatus/AdminStatus of the corresponding
                     endpoints MUST be 'down(2)'.  The deactivation of
                     the ATM endpoint MAY occur as a side-effect of
                     deleting the FR/ATM IWF cross-connection table
                     row.  Otherwise, 'destroy(6)' operation MUST fail
                     (error code 'inconsistentValue')."
             ::= { frAtmIwfConnectionEntry 7 }

         frAtmIwfConnAdminStatus OBJECT-TYPE
             SYNTAX      INTEGER { up(1), down(2) }
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                     "The desired operational state for this FR/ATM
                     interworked connection.

                     up(1)       = Activate the connection. Before the
                                   activation can be completed, the
                                   OperStatus/AdminStatus of the
                                   corresponding endpoints MUST be
                                   'up(1)'.  The activation of the
                                   corresponding endpoints MAY occur as
                                   a side-effect of activating the
                                   FR/ATM IWF cross-connection.

                     down(2)     = Deactivate the connection. Before
                                   the deactivation can be completed,
                                   the atmVclAdminStatus of the
                                   corresponding ATM endpoint MUST be
                                   'down(2)'.  The deactivation of the


                                   ATM endpoint MAY occur as a
                                   side-effect of deactivating the
                                   FR/ATM IWF cross-connection."
             ::= { frAtmIwfConnectionEntry 8 }

         frAtmIwfConnAtm2FrOperStatus     OBJECT-TYPE
             SYNTAX      INTEGER { up(1), down(2) }
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                     "The current operational state of this
                     interworking connection in the ATM to frame
                     relay direction."
             ::= { frAtmIwfConnectionEntry 9 }

         frAtmIwfConnAtm2FrLastChange  OBJECT-TYPE
             SYNTAX      TimeStamp
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                     "The value of sysUpTime at the time this
                     interworking connection entered its current
                     operational state in the ATM to FR direction.  If
                     the current state was entered prior to the last
                     re-initialization of the local network management
                     subsystem, then this object contains a zero
                     value."
             ::= { frAtmIwfConnectionEntry 10 }

         frAtmIwfConnFr2AtmOperStatus     OBJECT-TYPE
             SYNTAX      INTEGER { up(1), down(2) }
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                     "The current operational state of this
                     interworking connection in the frame relay
                     to ATM direction."
             ::= { frAtmIwfConnectionEntry 11 }

         frAtmIwfConnFr2AtmLastChange  OBJECT-TYPE
             SYNTAX      TimeStamp
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                     "The value of sysUpTime at the time this
                     interworking connection entered its current
                     operational state in the FR to ATM direction.  If
                     the current state was entered prior to the last


                     re-initialization of the local network management
                     subsystem, then this object contains a zero
                     value."
             ::= { frAtmIwfConnectionEntry 12 }

         frAtmIwfConnectionDescriptor  OBJECT-TYPE
             SYNTAX      Integer32
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                     "The value represents a pointer to the relevant
                     descriptor in the IWF descriptor table.  An
                     attempt to set this value to an inactive or non-
                     existent row in the Connection Descriptor Table
                     MUST fail (error code 'inconsistentValue')."
             ::= { frAtmIwfConnectionEntry 13 }

         frAtmIwfConnFailedFrameTranslate OBJECT-TYPE
             SYNTAX      Counter32
             UNITS       "Frames"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                     "This object counts the number of frames discarded
                     by the IWF because, while operating in Translation
                     Mode, the IWF is unable to decode the incoming
                     frame payload header according to the mapping
                     rules. (i.e., payload header not recognized by the
                     IWF).

                     Frame relay frames are received in the frame relay
                     to ATM direction of the PVC.

                     When operating in Transparent Mode, the IWF MUST
                     return noSuchInstance."
                       REFERENCE
                                "FRF.8 [17], Section 5.3.1"
                       ::= { frAtmIwfConnectionEntry 14 }

         frAtmIwfConnOverSizedFrames OBJECT-TYPE
             SYNTAX      Counter32
             UNITS       "Frames"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                     "Count of frames discarded by the IWF because the
                     frame is too large to be processed by the AAL5
                     segmentation procedure.  Specifically, the frame


                     does not conform to the size specified in the
                     atmVccAal5CpcsTransmitSduSize object associated
                     with the atmVclEntry at the ATM endpoint.
                     Frame relay frames are received in the frame relay
                     to ATM direction of the PVC."
                       REFERENCE
                                "ATM MIB [21], atmVclTable
                                 FRF.8 [17], 5.3.1.4"
                       ::= { frAtmIwfConnectionEntry 15 }

         frAtmIwfConnFailedAal5PduTranslate OBJECT-TYPE
             SYNTAX      Counter32
             UNITS       "PDUs"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                     "This attribute counts the number of AAL5 PDUs
                     discarded by the IWF because, while operating in
                     Translation Mode, the IWF is unable to decode the
                     incoming AAL5 PDU payload header according to the
                     mapping rules. (i.e., payload header not
                     recognized by the IWF).

                     AAL5 PDUs are received in the ATM to frame relay
                     direction of the PVC.

                     When operating in Transparent Mode, the IWF MUST
                     return noSuchInstance."
                       REFERENCE
                                "FRF.8 [17], Section 5.3.1"
                       ::= { frAtmIwfConnectionEntry 16 }

         frAtmIwfConnOverSizedSDUs OBJECT-TYPE
             SYNTAX      Counter32
             UNITS       "SDUs"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                     "Count of AAL5 SDUs discarded by the IWF because
                     the SDU is too large to be forwarded on the frame
                     relay segment of the connection.  Specifically,
                     the frame does not conform to the size specified
                     in the frLportFragSize object of the FRS MIB [19].

                     AAL5 PDUs are received in the ATM to frame relay
                     direction of the PVC."
                       REFERENCE
                                "FRS MIB [19], frLportTable


                                 FRF.8 [17], 5.3.1.4"
                       ::= { frAtmIwfConnectionEntry 17 }

         frAtmIwfConnCrcErrors OBJECT-TYPE
             SYNTAX      Counter32
             UNITS       "PDUs"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                     "The number of AAL5 CPCS PDUs received with CRC-32
                     errors on this AAL5 VCC at the IWF.

                     AAL5 PDUs are received in the ATM to frame relay
                     direction of the PVC."
                       REFERENCE
                                "ATM MIB [21], atmVclTable"
                       ::= { frAtmIwfConnectionEntry 18 }

         frAtmIwfConnSarTimeOuts OBJECT-TYPE
             SYNTAX      Counter32
             UNITS       "PDUs"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                     "The number of partially re-assembled AAL5 CPCS
                     PDUs which were discarded on this AAL5 VCC at the
                     IWF because they were not fully re-assembled
                     within the required time period.  If the re-
                     assembly timer is not supported, then this object
                     contains a zero value.

                     AAL5 PDUs are received in the ATM to frame relay
                     direction of the PVC."
                       REFERENCE
                                "ATM MIB [21], atmVclTable"
                       ::= { frAtmIwfConnectionEntry 19 }

         --
         -- The FR/ATM PVC Service IWF Connection Descriptor Group
         --
         --     The Frame Relay/ATM PVC Service Interworking Function
         --     Connection Descriptor table.  A descriptor provides the
         --     attributes for a type of interworked connection.
         --

         frAtmIwfConnectionDescriptorIndexNext OBJECT-TYPE
              SYNTAX      Integer32 (0..2147483647)
              MAX-ACCESS  read-only


              STATUS      current
              DESCRIPTION
                     "This object contains an appropriate value to be
                     used for frAtmIwfConnectionDescriptorIndex  when
                     creating entries in the
                     frAtmIwfConnectionDescriptorTable. The value 0
                     indicates that no unassigned entries are
                     available. To obtain the
                     frAtmIwfConnectionDescriptorIndexNext value for a
                     new entry, the manager issues a management
                     protocol retrieval operation to obtain the current
                     value of this object.  After each retrieval, the
                     agent should modify the value to the next
                     unassigned index."
              ::= { frAtmIwfMIBObjects 3 }

         frAtmIwfConnectionDescriptorTable OBJECT-TYPE
             SYNTAX      SEQUENCE OF FrAtmIwfConnectionDescriptorEntry
             MAX-ACCESS  not-accessible
             STATUS      current
             DESCRIPTION
                     "A table in which each row represents a descriptor
                     for one type of Frame Relay/ATM interworking
                     connection.  A descriptor may be assigned to zero
                     or more FR/ATM PVC service IWF connections."
             ::= { frAtmIwfMIBObjects 4 }

         frAtmIwfConnectionDescriptorEntry OBJECT-TYPE
             SYNTAX      FrAtmIwfConnectionDescriptorEntry
             MAX-ACCESS  not-accessible
             STATUS      current
             DESCRIPTION
                     "An entry for a descriptor in an interworking
                     connection between a frame relay PVC and an ATM
                     PVC."
             INDEX   { frAtmIwfConnectionDescriptorIndex  }
             ::= { frAtmIwfConnectionDescriptorTable 1 }

         FrAtmIwfConnectionDescriptorEntry ::=
             SEQUENCE {
                 frAtmIwfConnectionDescriptorIndex      Integer32,
                 frAtmIwfConnDescriptorRowStatus        RowStatus,
                 frAtmIwfConnDeToClpMappingMode         INTEGER,
                 frAtmIwfConnClpToDeMappingMode         INTEGER,
                 frAtmIwfConnCongestionMappingMode      INTEGER,
                 frAtmIwfConnEncapsulationMappingMode   INTEGER,
                 frAtmIwfConnEncapsulationMappings      BITS,
                 frAtmIwfConnFragAndReassEnabled        INTEGER,


                 frAtmIwfConnArpTranslationEnabled      INTEGER
         }

         frAtmIwfConnectionDescriptorIndex OBJECT-TYPE
             SYNTAX      Integer32 (1..2147483647)
             MAX-ACCESS  not-accessible
             STATUS      current
             DESCRIPTION
                     "A unique value to identify a descriptor in the
                     table "
             ::= { frAtmIwfConnectionDescriptorEntry 1 }

         frAtmIwfConnDescriptorRowStatus OBJECT-TYPE
             SYNTAX      RowStatus
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                     "The status of this table row.  This object is
                     used to create or delete an entry in the
                     descriptor table.

                     Creation of the row requires a row index (see
                     frAtmIwfConnectionDescriptorIndexNext).  If not
                     explicitly set or in existence, all other columns
                     of the row will be created and initialized to the
                     default value.  During creation, this object MAY
                     be set to 'createAndGo(4)' or 'createAndWait(5)'.
                     The object MUST contain the value 'active(1)'
                     before any connection table entry references the
                     row.

                     To destroy a row in this table, this object is set
                     to the 'destroy(6)' action.  Row destruction MUST
                     fail (error code 'inconsistentValue') if any
                     connection references the row."
             ::= { frAtmIwfConnectionDescriptorEntry 2 }

         frAtmIwfConnDeToClpMappingMode OBJECT-TYPE
             SYNTAX      INTEGER {
                            mode1(1),
                            mode2Const0(2),
                            mode2Const1(3)
                         }
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                     "This object describes which mode of translation
                     is in use for loss priority mapping in the frame


                     relay to ATM direction.

                     mode1(1)        = the DE field in the Q.922 core
                                       frame shall be mapped to the ATM
                                       CLP field of every cell
                                       generated by the segmentation
                                       process of the AAL5 PDU
                                       containing the information of
                                       that frame.

                     mode2Contst0(2) = the ATM CLP field of every cell
                                       generated by the segmentation
                                       process of the AAL5 PDU
                                       containing the information of
                                       that frame shall be set to
                                       constant 0.

                     mode2Contst1(3) = the ATM CLP field of every cell
                                       generated by the segmentation
                                       process of the AAL5 PDU
                                       containing the information of
                                       that frame shall be set to
                                       constant 1."
             REFERENCE
                      "FRF.8 [17], Section 4.2.1"
             DEFVAL { mode1 }
             ::= { frAtmIwfConnectionDescriptorEntry 3 }

         frAtmIwfConnClpToDeMappingMode OBJECT-TYPE
             SYNTAX      INTEGER {
                           mode1(1),
                           mode2Const0(2),
                           mode2Const1(3)
                         }
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                     "This object describes which mode of translation
                     is in use for loss priority mapping in the ATM to
                     frame relay direction.

                     mode1(1)       = if one or more cells in a frame
                                      has its CLP field set, the DE
                                      field of the Q.922 core frame
                                      should be set.

                     mode2Const0(2) = the DE field of the Q.922 core
                                      frame should be set to the


                                      constant 0.

                     mode2Const1(3) = the DE field of the Q.922 core
                                      frame should be set to the
                                      constant 1."
             REFERENCE
                      "FRF.8 [17], Section 4.2.2"
             DEFVAL { mode1 }
             ::= { frAtmIwfConnectionDescriptorEntry 4 }

         frAtmIwfConnCongestionMappingMode OBJECT-TYPE
             SYNTAX      INTEGER {
                            mode1(1),
                            mode2(2)
                         }
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                     "This object describes which mode of translation
                     is in use for forward congestion indication
                     mapping in the frame relay to ATM direction.

                     mode1(1) = The FECN field in the Q.922 core frame
                                shall be mapped to the ATM EFCI field
                                of every cell generated by the
                                segmentation process of the AAL5 PDU
                                containing the information of that
                                frame.

                     mode2(2) = The FECN field in the Q.922 core frame
                                shall not be mapped to the ATM EFCI
                                field of cells generated by the
                                segmentation process of the AAL5 PDU
                                containing the information of that
                                frame. The EFCI field is always set to
                                'congestion not experienced'.

                     In both of the modes above, if there is congestion
                     in the forward direction in the ATM layer within
                     the IWF, then the IWF can set the EFCI field to
                     'congestion experienced'."
             REFERENCE
                         "FRF.8 [17], Section 4.3.1.1"
             DEFVAL      { mode1 }
             ::= { frAtmIwfConnectionDescriptorEntry 5 }

         frAtmIwfConnEncapsulationMappingMode OBJECT-TYPE
             SYNTAX      INTEGER {


                            transparentMode(1),
                            translationMode(2),
                            translationModeAll(3)
                         }
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                     "This object indicates whether the mapping of
                     upper layer protocol encapsulation is enabled on
                     this interworking connection.

                     transparentMode(1) = Forward the encapsulations
                                          unaltered.

                     translationMode(2) = Perform mapping between the
                                          two encapsulations due to the
                                          incompatibilities of the two
                                          methods. Mapping is provided
                                          for a subset of the potential
                                          encapsulations as itemized in
                                          frAtmIwfConnEncapsulationMapp
                                          ings.

                     translationModeAll(3) = Perform mapping between
                                          the two encapsulations due to
                                          the incompatibilities of the
                                          two methods. All
                                          encapsulations are
                                          translated."
             REFERENCE
                         "FRF.8 [17], Section 5.3"
             DEFVAL      { transparentMode }
             ::= { frAtmIwfConnectionDescriptorEntry 6 }

         frAtmIwfConnEncapsulationMappings OBJECT-TYPE
             SYNTAX      BITS {
                    none (0),
                    bridgedPdus(1),
                    bridged802dot6(2),
                    bPdus(3),
                    routedIp(4),
                    routedOsi(5),
                    otherRouted(6),
                    x25Iso8202(7),
                    q933q2931(8) }
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION


                     "If upper layer protocol encapsulation mapping is
                     enabled on this interworking connection, then this
                     attribute enumerates which of the encapsulation
                     mappings are supported.

                     none(0)           = Transparent mode operation
                     bridgedPdus(1)    = PID: 0x00-01,-07,-02 or -08
                     bridged802dot6(2) = PID: 0x00-0B
                     bPdus(3)          = PID: 0x00-0E or -0F
                     routedIp(4)       = NLPID: OxCC
                     routedOsi(5)      = NLPID: Ox81, 0x82 or 0x83
                     otherRouted(6)    = Other routed protocols
                     x25Iso8202(7)     = X25
                     q933q2931(8)      = Q.933 and Q.2931"
             REFERENCE
                         "FRF.8 [17], Section 5.3.1"
             DEFVAL      { { none } }
             ::= { frAtmIwfConnectionDescriptorEntry 7 }

         frAtmIwfConnFragAndReassEnabled OBJECT-TYPE
             SYNTAX      INTEGER { enabled(1),  disabled(2)}
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                     "The attribute indicates whether fragmentation and
                     reassembly is enabled for this connection."
             REFERENCE
                         "FRF.8 [17], Section 5.3.1.4"
             DEFVAL      { disabled }
             ::= { frAtmIwfConnectionDescriptorEntry 8 }

         frAtmIwfConnArpTranslationEnabled OBJECT-TYPE
             SYNTAX      INTEGER { enabled(1),  disabled(2)}
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                     "The attribute indicates whether ARP translation
                     is enabled for this connection."
             REFERENCE
                         "FRF.8 [17], Section 5.4"
             DEFVAL      { disabled }
             ::= { frAtmIwfConnectionDescriptorEntry 9 }

         --
         -- Augmentation of ATM MIB VCL Endpoint Table (atmVclTable)
         --
         frAtmIwfVclTable OBJECT-TYPE
             SYNTAX      SEQUENCE OF FrAtmIwfVclEntry


             MAX-ACCESS  not-accessible
             STATUS      current
             DESCRIPTION
                     "The FR/ATM IWF VCL Table augments the ATM MIB VCL
                     Endpoint table."
             ::= { frAtmIwfMIBObjects 5 }

         frAtmIwfVclEntry OBJECT-TYPE
             SYNTAX      FrAtmIwfVclEntry
             MAX-ACCESS  not-accessible
             STATUS      current
             DESCRIPTION
                     "Entries in this table are created only by the
                     agent. One entry exists for each ATM VCL managed
                     by the agent."
             AUGMENTS    { atmVclEntry }
             ::= { frAtmIwfVclTable 1 }

         FrAtmIwfVclEntry ::= SEQUENCE {
             frAtmIwfVclCrossConnectIdentifier    Integer32
         }

         frAtmIwfVclCrossConnectIdentifier OBJECT-TYPE
             SYNTAX      Integer32  (1..2147483647)
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                     "This object contains the index value of the
                     FR/ATM cross-connect table entry used to link the
                     ATM VCL with a frame relay PVC.

                     Each row of the atmVclTable that is not cross-
                     connected with a frame relay PVC MUST return the
                     value zero when this object is read.

                     In the case of (frame relay) point to (ATM)
                     multipoint, multiple ATM VCLs will have the same
                     value of this object, and all their cross-
                     connections are identified by entries that are
                     indexed by the same value of
                     frAtmIwfVclCrossConnectIdentifier in the
                     frAtmIwfConnectionTable of this MIB module.

                     The value of this object is initialized by the
                     agent after the associated entries in the
                     frAtmIwfConnectionTable have been created."
             ::= { frAtmIwfVclEntry 1 }



         --
         -- Frame Relay/ATM PVC Service Interworking NOTIFICATION
         --

         frAtmIwfConnStatusChange NOTIFICATION-TYPE
             OBJECTS {   frAtmIwfConnAdminStatus,
                         frAtmIwfConnAtm2FrOperStatus,
                         frAtmIwfConnFr2AtmOperStatus
                      }
             STATUS      current
             DESCRIPTION
                     "An indication that the status of this
                     interworking connection has changed."
             ::= { frAtmIwfTrapsPrefix 1 }

         --
         -- Conformance Information
         --

         --
         -- Compliance Statement For Equipment
         --

         frAtmIwfEquipmentCompliance MODULE-COMPLIANCE
             STATUS      current
             DESCRIPTION
                     "The compliance statement for equipment that
                     implements the FR/ATM Interworking MIB."

             MODULE -- this module
                 MANDATORY-GROUPS { frAtmIwfBasicGroup,
                                    frAtmIwfConnectionDescriptorGroup,
                                    frAtmIwfAtmVclTableAugmentGroup,
                                    frAtmIwfNotificationsGroup }

                 OBJECT      frAtmIwfConnDeToClpMappingMode
                 SYNTAX      INTEGER { mode1(1) }
                 DESCRIPTION
                     "Only support for Mode 1 is REQUIRED."

                 OBJECT      frAtmIwfConnClpToDeMappingMode
                 SYNTAX      INTEGER { mode1(1) }
                 DESCRIPTION
                     "Only support for Mode 1 is REQUIRED."

                 OBJECT      frAtmIwfConnCongestionMappingMode
                 SYNTAX      INTEGER { mode1(1) }
                 DESCRIPTION


                     "Only support for Mode 1 is REQUIRED."

                 OBJECT      frAtmIwfConnEncapsulationMappingMode
                 SYNTAX      INTEGER { transparentMode(1) }
                 DESCRIPTION
                     "Support for Translation Mode is OPTIONAL."

                 OBJECT      frAtmIwfConnEncapsulationMappings
                 SYNTAX      BITS { none(0) }
                 DESCRIPTION
                     "The IWF may provide one, some or none of the
                     encapsulation translations defined in section
                     5.3.1 of FRF.8 [17]."

                 OBJECT      frAtmIwfConnFragAndReassEnabled
                 SYNTAX      INTEGER { disabled(2) }
                 DESCRIPTION
                     "Only support for Mode 1 is REQUIRED."

                 OBJECT      frAtmIwfConnArpTranslationEnabled
                 SYNTAX      INTEGER { disabled(2) }
                 DESCRIPTION
                     "Support for ARP Translation is NOT REQUIRED."

             ::= { frAtmIwfCompliances 1 }

         --
         -- Compliance Statement For Service (CNM Interface)
         --

         frAtmIwfServiceCompliance MODULE-COMPLIANCE
             STATUS  current
             DESCRIPTION
                     "The compliance statement for a CNM interface that
                     implements the FR/ATM Interworking MIB."

             MODULE  -- this module
                 MANDATORY-GROUPS { frAtmIwfBasicGroup,
                                    frAtmIwfConnectionDescriptorGroup,
                                    frAtmIwfAtmVclTableAugmentGroup,
                                    frAtmIwfNotificationsGroup }

                 --
                 -- Exceptions for each object type implemented for a
                 -- CNM view of the FR/ATM Interworking MIB
                 --
                 OBJECT      frAtmIwfConnAdminStatus
                 MIN-ACCESS  read-only


                 DESCRIPTION
                     "Write access is not REQUIRED."

                 OBJECT      frAtmIwfConnDeToClpMappingMode
                 SYNTAX      INTEGER { mode1(1) }
                 MIN-ACCESS  read-only
                 DESCRIPTION
                     "Support for Mode 1 is REQUIRED.  Other modes are
                     OPTIONAL.  Write access is NOT REQUIRED."

                 OBJECT      frAtmIwfConnClpToDeMappingMode
                 SYNTAX      INTEGER { mode1(1) }
                 MIN-ACCESS  read-only
                 DESCRIPTION
                     "Support for Mode 1 is REQUIRED.  Other modes are
                     OPTIONAL.  Write access is NOT REQUIRED."

                 OBJECT      frAtmIwfConnCongestionMappingMode
                 SYNTAX      INTEGER { mode1(1) }
                 MIN-ACCESS  read-only
                 DESCRIPTION
                     "Support for Mode 1 is REQUIRED.  Other modes are
                     OPTIONAL.  Write access is NOT REQUIRED."

                 OBJECT      frAtmIwfConnEncapsulationMappingMode
                 SYNTAX      INTEGER { transparentMode(1) }
                 MIN-ACCESS  read-only
                 DESCRIPTION
                     "Support for Transparent Mode is REQUIRED.
                     Translation Mode is OPTIONAL.  Write access is not
                     required."

                 OBJECT      frAtmIwfConnEncapsulationMappings
                 SYNTAX      BITS { none(0) }
                 MIN-ACCESS  read-only
                 DESCRIPTION
                     "The IWF may provide one, some or none of the
                     encapsulation translations defined in section
                     5.3.1 of FRF.8 [17]. Write access is not
                     required."

                 OBJECT      frAtmIwfConnFragAndReassEnabled
                 SYNTAX      INTEGER { disabled(2) }
                 MIN-ACCESS  read-only
                 DESCRIPTION
                     "Support for Fragmentation and Reassembly is NOT
                     REQUIRED.  Write access is not required."



                 OBJECT      frAtmIwfConnArpTranslationEnabled
                 SYNTAX      INTEGER { disabled(2) }
                 MIN-ACCESS  read-only
                 DESCRIPTION
                     "Support for ARP Translation is not required.
                     Write access is not required."

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

             ::= { frAtmIwfCompliances 2 }

         --
         -- Units of Conformance
         --

         --
         -- Basic FR/ATM IWF PVC Connection Group
         --
         frAtmIwfBasicGroup    OBJECT-GROUP
             OBJECTS { frAtmIwfConnIndexNext,
                       frAtmIwfConnAdminStatus,
                       frAtmIwfConnAtm2FrOperStatus,
                       frAtmIwfConnAtm2FrLastChange,
                       frAtmIwfConnFr2AtmOperStatus,
                       frAtmIwfConnFr2AtmLastChange,
                       frAtmIwfConnectionDescriptor,
                       frAtmIwfConnFailedFrameTranslate,
                       frAtmIwfConnOverSizedFrames,
                       frAtmIwfConnFailedAal5PduTranslate,
                       frAtmIwfConnOverSizedSDUs,
                       frAtmIwfConnCrcErrors,
                       frAtmIwfConnSarTimeOuts,
                       frAtmIwfConnRowStatus }
             STATUS  current
             DESCRIPTION
                     "The collection of basic objects for configuration
                     and control of FR/ATM interworking connections."
             ::= { frAtmIwfGroups 1 }

         --
         -- FR/ATM IWF PVC Connection Descriptor Group
         --

         frAtmIwfConnectionDescriptorGroup    OBJECT-GROUP
             OBJECTS {


                 frAtmIwfConnectionDescriptorIndexNext,
                 frAtmIwfConnDeToClpMappingMode,
                 frAtmIwfConnClpToDeMappingMode,
                 frAtmIwfConnCongestionMappingMode,
                 frAtmIwfConnEncapsulationMappingMode,
                 frAtmIwfConnEncapsulationMappings,
                 frAtmIwfConnFragAndReassEnabled,
                 frAtmIwfConnArpTranslationEnabled,
                 frAtmIwfConnDescriptorRowStatus
                 }
             STATUS  current
             DESCRIPTION
                     "The collection of basic objects for specification
                     of FR/ATM interworking connection descriptors."
             ::= { frAtmIwfGroups 2 }

         --
         -- ATM MIB VCL Endpoint Table Augmentation Group
         --

         frAtmIwfAtmVclTableAugmentGroup    OBJECT-GROUP
             OBJECTS {
                 frAtmIwfVclCrossConnectIdentifier
                 }
             STATUS  current
             DESCRIPTION
                     "The ATM MIB VCL Endpoint Table AUGMENT object
                     contained in the FR/ATM PVC Service Interworking
                     MIB."
             ::= { frAtmIwfGroups 3 }

         --
         -- Notification Group
         --

         frAtmIwfNotificationsGroup NOTIFICATION-GROUP
             NOTIFICATIONS { frAtmIwfConnStatusChange }
             STATUS  current
             DESCRIPTION
                     "The notification for FR/ATM interworking status
                     change."
             ::= { frAtmIwfGroups 4 }
         END

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