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