x25 MIB part 1

"Dean D. Throop" <throop@dg-rtp.dg.com> Tue, 25 February 1992 19:29 UTC

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Date: Tue, 25 Feb 1992 13:52:44 -0500
From: "Dean D. Throop" <throop@dg-rtp.dg.com>
Message-Id: <9202251852.AA18056@commtg3>
To: x25mib@dg-rtp.dg.com
Subject: x25 MIB part 1


          Internet Draft      X.25 Packet Layer MIB        February 1992


                   SNMP MIB extension for the X.25 Packet Layer

                                February 24, 1992


                                  Dean D. Throop
                                     (editor)

                             Data General Corporation
                                 62 Alexander Dr.
                         Research Triangle Park, NC 27709

                               throop@dg-rtp.dg.com






          1.  Status of this Memo

          This is a draft document of the x25mib working group.  The
          working group intends to submit a revised version of this
          document to the RFC editor as an extension to the SNMP MIB.
          Distribution of this memo is unlimited.  Please send comments
          to the x25mib working group:

                               x25mib@dg-rtp.dg.com



          1.1.  Revision History

          February 1992

          The February release (Editor's Internal Reference Number 1.14)
          made many changes.

               Many of the tables were combined.  For example, the
               x25InfoTable, x25PktStatTable, and x25TmrStatTable were
               combined into the x25PleTable.  The x25ConInfoTable,
               x25ConStatTable, and x25ConTimrTable were combined into
               the x25CircuitTable.







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               The objects for call parameters were drastically
               reworked.  All call parameters were combined in the
               x25CallParmTable.  Any table, such as the  x25PleTable or
               x25CircuitTable, that needs to reference call parameters
               identifies an entry in the new table.  As part of this
               the x25ConDefTable was deleted and replaced with the
               x25PleDefCallParamId.

               The x25PvcTable was deleted; the x25CircuitStatus object
               provides similar information about PVCs.

               The x25ClearedCircuitTable was added to record the status
               code of cleared circuits.

               Many object definitions were restructured. For example,
               the time units for timers was changed from 1/100ths of a
               second to milliseconds.  Some indexes into tables were
               replaced with object identifiers.

               Much of the introductory text was changed and the
               references were changed to match.

          October 1992

          The October release (Editor Internal Reference Number 1.10)
          made the following changes:

               Changed x25ConInfoStatus to clarify the description and
               the pvcResetting(5) value was changed to pvcResetting(6)
               to avoid a conflict with a previous use of the number 5.

               The name of the counter object
               x25TmrStatRetryCountsExceeded was changed to
               x25TmrStatRetryCountExceededs.

               The name of the counter object
               x25TmrStatClearCountsExceeded was changed to
               x25TmrStatClearCountExceededs.

               All occurances of Guage were changed to Gauge.

               Added the x25CallFcltyTable, x25CallFcltyCcittTable, and
               x25CallParamTable.







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          June 1991

          The June release corrected some syntax errors and cleaned up
          some other minor things.

          April 1991

          The April 26 release of this document was the first release.
          That version was derived from the ISO work on network layer
          management as presented in ISO/IEC 10733 [11].

          2.  Abstract

          This memo defines a portion of the Management Information Base
          (MIB) for use with network management protocols in TCP/IP-
          based internets.  In particular, it defines objects for
          managing the Packet Layer of X.25.  The objects defined here,
          along with the objects in the "SNMP MIB extension for LAPB"
          [9] and the "Definitions of Managed Objects for RS-232-like
          Hardware Devices" [8], combine to allow management of an X.25
          protocol stack.

          3.  The Network Management Framework

          The Internet-standard Network Management Framework consists of
          three components.  These components give the rules for
          defining objects, the definitions of objects, and the protocol
          for manipulating objects.

          The network management framework structures objects in an
          abstract information tree. The branches of the tree name
          objects and the leaves of the tree contain the values
          manipulated to effect management. This tree is called the
          Management Information Base or MIB. The concepts of this tree
          are given in RFC 1155 "The Structure of Management
          Information" or SMI [1]. The SMI defines the trunk of the tree
          and the types of objects used when defining the leaves. RFC
          1212, "Towards Concise MIB Definitions" [4], defines a more
          concise description mechanism that preserves all the
          principals of the SMI.

          The core MIB definitions for the Internet suite of protocols
          can be found in RFC 1156 [2] "Management Information Base for
          Network Management of TCP/IP-based internets". RFC 1213 [5]
          defines MIB-II, an evolution of MIB-I with changes to





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          incorporate implementation experience and new operational
          requirements.

          RFC 1157 [3] defines the SNMP protocol itself. The protocol
          defines how to manipulate the objects in a remote MIB.

          The tree structure of the MIB allows new objects to be defined
          for the purpose of experimentation and evaluation.

          4.  Objects

          The definition of an object in the MIB requires an object name
          and type.  Object names and types are defined using the subset
          of Abstract Syntax Notation One (ASN.1) [6] defined in the SMI
          [1].  Objects are named using ASN.1 object identifiers,
          administratively assigned names, to specify object types.  The
          object name, together with an optional object instance,
          uniquely identifies a specific instance of an object.  For
          human convenience, we often use a textual string, termed the
          OBJECT DESCRIPTOR, to also refer to objects.

          Objects also have a syntax that defines the abstract data
          structure corresponding to that object type.  The ASN.1
          language [6] provides the primitives used for this purpose.
          The SMI [1] purposely restricts the ASN.1 constructs which may
          be used for simplicity and ease of implementation.  The
          encoding of an object type simply describes how to represent
          an object using ASN.1 encoding rules [7], for purposes of
          dealing with the SNMP protocol.

          4.1.  Format of Definitions

          Section 6 contains the specification of all object types
          defined in this MIB module.  The object types are defined
          using the conventions defined in the SMI, as amended by the
          extensions specified in "Towards Concise MIB Definitions" [4].














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          5.  Overview

          5.1.  Informal Overview

          This section describes how the objects defined below relate
          with other MIBs.  This section is only informational to help
          understand how the pieces fit together.

          The objects defined below are used in conjunction with MIB-II
          and other MIBs such as the LAPB MIB [9].  A system with a
          complete X.25 stack running over a synchronous line will have
          at least two interfaces in the ifTable defined in MIB-II.
          There will be an interface for LAPB and another interface for
          the packet layer of X.25. There will also be objects defined
          in the RS-232-like MIB for the physical sync line.

          Each software interface identifies the layer below it used to
          send and receive packets. The X.25 MIB object, defined below,
          x25PleDataLinkId, specifies an instance of lapbParamIndex for
          the LAPB interface under that X.25. The LAPB object,
          lapbParamPortId, identifies an instance of the rs232PortIndex
          for the the Sync line used by LAPB.

          For X.25 running over LAPB over Ethernet, the lapbParamPortId
          would identify the instance of ifIndex for the Ethernet
          interface.

          Each X.25 subnetwork will have separate entries in the
          ifTable.  Thus a system with two X.25 lines would have two
          ifTable entries for the two X.25 packet layers and two other
          entries for the two LAPB interfaces. Each X.25 Packet Layer
          MIB would identify the instance of the LAPB MIB for the
          interface below it. Each LAPB MIB would identify the Sync line
          below it. The system would also have two entries for
          rs232PortTable and rs232SyncPortTable for the two physical
          lines.

          Since the ifTable as defined in MIB-II is device independent,
          it doesn't have anything specific for any type of interface.
          The objects below define the X.25 packet layer specific
          information for an interface of type X.25. Different X.25
          interfaces can also be differentiated by matching the values
          of ifIndex with x25PleIndex.







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          5.2.  Textual Conventions

          This MIB introduces a new data type as a textual convention
          for use with X.25.  This textual convention enhances the
          readability of the specification and can ease comparison with
          other specifications if appropriate.  It should be noted that
          the introduction of such textual conventions has no effect on
          either the syntax nor the semantics of any managed objects.
          These conventions are merely an artifact of the explanatory
          method used.  Objects defined in terms of one of these methods
          are always encoded by means of the rules that define the
          primitive type.  Hence, no changes to the SMI or the SNMP are
          necessary to accommodate these textual conventions which are
          adopted merely for the convenience of readers and writers in
          pursuit of the elusive goal of clear, concise, and unambiguous
          MIB documents.

          This MIB introduces the data type of:

                    X25address

          5.3.  Structure of MIB

          Instances of the objects defined below represent attributes of
          an X.25 Packet Layer interface.  At present these interfaces
          are identified by an ifType object in the Internet-standard
          MIB [5] of:

                    ddn-x25(4), and
                    rfc887-x25(5).

          For these interfaces, the value of the ifSpecific variable in
          the MIB-II [5] has the OBJECT IDENTIFIER value:

                    x25    OBJECT IDENTIFIER ::= { To Be Assigned }

          The objects defined below are similar to those defined in a
          draft ISO document for X.25 management [11]. Some object
          definitions also reference the ISO specification for X.25 [10]
          to specify  the section that will give the reader addition
          information relative to the object.  Access to those documents
          maybe useful (but isn't essential) to understand the names and
          semantics of some objects.  The similarity of these objects
          with the ISO objects minimizes the instrumentation required by
          those systems that support both OSI and TCP/IP management





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          protocols.

          Since the objects defined here are extensions to the Internet
          Standard MIB [2] and thus also an extension of the second
          version, MIB-II [5], the objects defined here explicitly do
          not duplicate objects defined in existing standards.  In some
          instances clarification of how to apply those objects has been
          given.

          The relationship between an X.25 Packet Layer interface and an
          interface in the context of the Internet-standard MIB [5] is
          one-to-one. As such, the value of an ifIndex object instance
          can be directly used to identify corresponding instances of
          the objects defined below.




































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          6.  Object Definitions


          RFCX25Pk-MIB DEFINITIONS ::= BEGIN
                  -- Editors internal reference number 1.79

          IMPORTS
                  experimental,
                  Counter,
                  Gauge,
                  TimeTicks
                          FROM RFC1155-SMI;

                          -- DO NOT USE THIS EXPERIMENTAL NUMBER!
          x25     OBJECT IDENTIFIER ::= { experimental 1234567 }
                          -- This experimental number is
                          -- an invalid placeholder.
                          -- DO NOT USE THIS EXPERIMENTAL NUMBER!

          X25address ::= OCTET STRING (SIZE(0..17))
           -- 0 to 17 bytes in length containing the ASCII
           -- characters [0-9], each octet contains one digit
           -- of the address.


          -- ###########################################################
          --            X.25 Packet Level Entity (PLE) Table
          -- ###########################################################

          x25PleTable OBJECT-TYPE
                  SYNTAX  SEQUENCE OF X25PleEntry
                  ACCESS  not-accessible
                  STATUS  mandatory
                  DESCRIPTION
                          "General information about this X.25 PLE."
                  ::= { x25 1 }

          x25PleEntry OBJECT-TYPE
                  SYNTAX  X25PleEntry
                  ACCESS  not-accessible
                  STATUS  mandatory
                  DESCRIPTION
                          "Entries of x25PleTable."
                  INDEX { x25PleIndex }
                  ::= { x25PleTable 1 }





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          X25PleEntry ::= SEQUENCE {
                  x25PleIndex
                          INTEGER,
                  x25PleProtocolVersionSupported
                          OBJECT IDENTIFIER,
                  x25PleLocalAddress
                          X25address,
                  x25PleInterfaceMode
                          INTEGER,
                  x25PleMaxActiveCircuits
                          INTEGER,
                  x25PleDataLinkId
                          OBJECT IDENTIFIER,
                  x25PlePacketSequencing
                          INTEGER,
                  x25PleInCalls
                          Counter,
                  x25PleInCallRefusals
                          Counter,
                  x25PleInProviderInitiatedClears
                          Counter,
                  x25PleInRemotelyInitiatedResets
                          Counter,
                  x25PleInProviderInitiatedResets
                          Counter,
                  x25PleInRestarts
                          Counter,
                  x25PleInDataPackets
                          Counter,
                  x25PleInAccusedOfProtocolErrors
                          Counter,
                  x25PleInInterrupts
                          Counter,
                  x25PleOutCallAttempts
                          Counter,
                  x25PleOutCallFailures
                          Counter,
                  x25PleOutInterrupts
                          Counter,
                  x25PleOutgoingConnections
                          Gauge,
                  x25PleIncomingConnections
                          Gauge,
                  x25PleTwowayConnections
                          Gauge,





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               x25PleRestartTimer
                          INTEGER,
                  x25PleMinimumRecallTimer
                          INTEGER,
                  x25PleRestartCount
                          INTEGER,
                  x25PleRegistrationRequestTimer
                          INTEGER,
                  x25PleRegistrationRequestCount
                          INTEGER,
                  x25PleCallTimeouts
                          Counter,
                  x25PleClearTimeouts
                          Counter,
                  x25PleResetTimeouts
                          Counter,
                  x25PleRestartTimeouts
                          Counter,
                  x25PleInterruptTimeouts
                          Counter,
                  x25PleDataRxmtTimeouts
                          Counter,
                  x25PleRetryCountExceededs
                          Counter,
                  x25PleClearCountExceededs
                          Counter,
                  x25PleClearEntriesRequested
                          INTEGER,
                  x25PleClearEntriesGranted
                          INTEGER,
                  x25PleDefCallParamId
                          OBJECT IDENTIFIER
                  }

          x25PleIndex OBJECT-TYPE
                  SYNTAX  INTEGER (1..65535)
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "A value that uniquely identifies  the  X.25
                          PLE   subnetwork  and  matches  its  ifIndex
                          value."
                  ::= { x25PleEntry 1 }

          --      MIB-II also provides:





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          -- ifDescr:
          -- On an X.25 interface this must include sufficient
          -- information to enable the system's administrator
          -- to determine the appropriate configuration
          -- information on a system having multiple X.25
          -- subnetworks.

          -- ifType: ddn-x25 or rfc877-x25
          --      an interface of type ddn-x25 will use an algorithm to
          --      translate between X.121 address and IP addresses.
          --      An interface of type rfc877-x25 will use a
          --      configuration table to translate between X.121
          --      addresses and IP addresses.

          -- ifMtu: the maximum PDU a higher layer can pass to X.25 or
          -- or receive from X.25

          -- ifSpeed:

          -- ifAdminStatus:

          -- ifOperStatus

          -- ifLastChange

          x25PleProtocolVersionSupported  OBJECT-TYPE
                  SYNTAX  OBJECT IDENTIFIER
                  ACCESS  read-write
                  STATUS  mandatory
                  DESCRIPTION
                          "Identifies  the  version   of   X.25   this
                          interface  supports.  Object identifiers for
                          common versions are  defined  below  in  the
                          x25ProtocolVersion subtree."
                  REFERENCE "10733 5.9 protocolVersionSupported"
                  ::= { x25PleEntry 2 }

          x25PleLocalAddress OBJECT-TYPE
                  SYNTAX  X25address
                  ACCESS  read-write
                  STATUS  mandatory
                  DESCRIPTION
                          "The local address for this PLE subnetwork."
                  REFERENCE "10733 5.9 localDTEAddress"
                  ::= { x25PleEntry 3 }





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          x25PleInterfaceMode OBJECT-TYPE
                  SYNTAX  INTEGER {
                          dte(1),
                          dce(2) }
                  ACCESS  read-write
                  STATUS  mandatory
                  DESCRIPTION
                          "Identifies  DCE/DTE  mode  in   which   the
                          interface operates."
                  REFERENCE "10733 5.9 interfaceMode"
                  ::= { x25PleEntry 4 }

          x25PleMaxActiveCircuits OBJECT-TYPE
                  SYNTAX  INTEGER (1..4096)
                  ACCESS  read-write
                  STATUS  mandatory
                  -- See ISO 8208, Section 3.7
                  DESCRIPTION
                          "Maximum number of  circuits  this  PLE  can
                          support."
                  REFERENCE "10733 5.9 maxActiveCircuits"
                  ::= { x25PleEntry 5 }

          x25PleDataLinkId OBJECT-TYPE
                  SYNTAX  OBJECT IDENTIFIER
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "This identifies the instance of  the  index
                          object in the first table of the most device
                          specific MIB for the interface used by  this
                          PLE."
                  ::= { x25PleEntry 6 }

          x25PlePacketSequencing  OBJECT-TYPE
                  SYNTAX  INTEGER {
                          modulo8(1),
                          modulo128(2) }
                  ACCESS  read-write
                  STATUS  mandatory
                  -- See ISO 8208 Section 7.1.1
                  DESCRIPTION
                          "The modulus of the packet  sequence  number
                          space."
                  REFERENCE "10733 extendedPacketSequencing"





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               ::= { x25PleEntry 7 }

          --  The following are the statistics part of the PLE.


          --      MIB-II interfaces also contains:
          -- ifInOctets: Number of data octets delivered to upper
          -- layer entities.

          -- ifInUcastPkts: Number of packets received from peer PLE and
          -- delivered to upper layer entities.

          -- ifDiscards: Number of packets dropped for lack of buffering

          -- ifInErrors: Number of packets received containing errors
            -- REFERENCE ProtocolErrorsDetectedLocally

          -- ifInUnknownProtos: Number of packets with unknown circuit
          -- identifier.

          x25PleInCalls OBJECT-TYPE
                  SYNTAX  Counter
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "The number of incoming calls received."
                  ::= { x25PleEntry 8 }

          x25PleInCallRefusals OBJECT-TYPE
                  SYNTAX  Counter
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "The number of incoming calls refused."
                  ::= { x25PleEntry 9 }

          x25PleInProviderInitiatedClears OBJECT-TYPE
                  SYNTAX  Counter
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "The number of clear requests with  a  cause
                          code other than DTE initiated."
                  REFERENCE "10733 providerInitiatedDisconnect"
                  ::= { x25PleEntry 10 }





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          x25PleInRemotelyInitiatedResets OBJECT-TYPE
                  SYNTAX  Counter
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "The number of reset requests received  with
                          cause code DTE initiated."
                  REFERENCE "10733 remotelyInitiatedResets"
                  ::= { x25PleEntry 11 }

          x25PleInProviderInitiatedResets OBJECT-TYPE
                  SYNTAX  Counter
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "The number of reset requests received  with
                          cause code other than DTE initiated."
                  REFERENCE "10733 ProviderInitiatedResets"
                  ::= { x25PleEntry 12 }

          x25PleInRestarts OBJECT-TYPE
                  SYNTAX  Counter
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "The number of remotely initiated (including
                          provider  initiated) restarts experienced by
                          the PLE  excluding  the  restart  associated
                          with bringing up the PLE interface."
                  REFERENCE "10733 5.9 remotelyInitiatedRestarts"
                  ::= { x25PleEntry 13 }

          x25PleInDataPackets     OBJECT-TYPE
                  SYNTAX  Counter
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "The number of data packets received."
                  REFERENCE "10733 5.9 dataPacketsReceived."
                  ::= { x25PleEntry 14 }

          x25PleInAccusedOfProtocolErrors OBJECT-TYPE
                  SYNTAX  Counter
                  ACCESS  read-only
                  STATUS  mandatory





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               DESCRIPTION
                          "The number of packets received containing a
                          protocol  error  cause  code.  These include
                          clear,   reset,   restart,   or   diagnostic
                          packets."
                  REFERENCE "CD 10733 5.9 accusedOfProtocolError"
                  ::= { x25PleEntry 15 }

          x25PleInInterrupts OBJECT-TYPE
                  SYNTAX  Counter
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "The number of interrupt packets received by
                          the PLE or over the PVC/VC."
                  REFERENCE "10733 interruptPacketsReceived"
                  ::= { x25PleEntry 16 }

          -- ifOutOctets: Number of data octets delivered by
          --      X.25 to upper layers.

          -- ifOutUcastPkts: Number of packets sent to peer PLE.

          x25PleOutCallAttempts OBJECT-TYPE
                  SYNTAX  Counter
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "The number of calls attempted."
                  REFERENCE "10733 5.9 callAttempts"
                  ::= { x25PleEntry 17 }

          x25PleOutCallFailures OBJECT-TYPE
                  SYNTAX  Counter
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "The number of calls attempts which failed."
                  ::= { x25PleEntry 18 }

          x25PleOutInterrupts     OBJECT-TYPE
                  SYNTAX  Counter
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION





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                  "The number of interrupt packets send by the
                          PLE or over the PVC/VC."
                  REFERENCE "10733 InterruptPacketsSent"
                  ::= { x25PleEntry 19 }

          x25PleOutgoingConnections OBJECT-TYPE
                  SYNTAX  Gauge
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "The number of active outgoing  connections.
                          This includes call requests sent but not yet
                          confirmed."
                  ::= { x25PleEntry 20 }

          x25PleIncomingConnections OBJECT-TYPE
                  SYNTAX  Gauge
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "The Number of active Incoming  Connections.
                          This  includes any call indications received
                          but not yet acknowledged."
                  ::= { x25PleEntry 21 }

          x25PleTwowayConnections OBJECT-TYPE
                  SYNTAX  Gauge
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "The number of active  two-way  connections.
                          This includes call requests sent but not yet
                          confirmed."
                  ::= { x25PleEntry 22 }


                          -- X25 Timer Statistics section

          x25PleRestartTimer OBJECT-TYPE
                  SYNTAX  INTEGER (1..1800000)
                  ACCESS  read-write
                  STATUS  mandatory
                  -- See ISO 8208 Section 4.1, table 26
                  DESCRIPTION
                          "The T20 restart timer in milliseconds."





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               REFERENCE "10733 5.9 restartTime"
                  ::= { x25PleEntry 23 }

          x25PleMinimumRecallTimer OBJECT-TYPE
                  SYNTAX  INTEGER (0..1800000)
                  ACCESS  read-write
                  STATUS  mandatory
                  DESCRIPTION
                          "Minimum time interval between call attempts
                          in milliseconds."
                  REFERENCE "10733 5.9 minimum RecallTimer"
                  ::= { x25PleEntry 24 }

          x25PleRestartCount OBJECT-TYPE
                  SYNTAX  INTEGER (1..65535)
                  ACCESS  read-write
                  STATUS  mandatory
                  -- See ISO 8208 Section 4.1, table 27
                  DESCRIPTION
                          "The value of the R20 restart retransmission
                          count."
                  REFERENCE "10733 5.9 restartCount"
                  ::= { x25PleEntry 25 }

          x25PleRegistrationRequestTimer OBJECT-TYPE
                  SYNTAX  INTEGER (0..1800000)
                  ACCESS  read-write
                  STATUS  mandatory
                  -- See ISO 8208 Section 13.1.1.1, table 26
                  DESCRIPTION
                          "The T28 registration timer in milliseconds.
                          A  value  of  zero indicates no registration
                          timer in use."
                  REFERENCE "10733 5.8.1 registrationRequestTime (opt)"
                  ::= { x25PleEntry 26 }

          x25PleRegistrationRequestCount OBJECT-TYPE
                  SYNTAX  INTEGER (0..65535)
                  ACCESS  read-write
                  STATUS  mandatory
                  -- See ISO 8208 Section 13.1.1.1, table 27
                  DESCRIPTION
                          "The R28 Registration retransmission  Count.
                          A value of zero indicates no timer in use."
                  REFERENCE "10733 5.8.1 registrationRequestCount (opt)"





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               ::= { x25PleEntry 27 }

          x25PleCallTimeouts OBJECT-TYPE
                  SYNTAX  Counter
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "The number of  times  the  T21  call  timer
                          expired."
                  REFERENCE "10733 5.9 callTimeouts"
                  ::= { x25PleEntry 28 }

          x25PleClearTimeouts     OBJECT-TYPE
                  SYNTAX  Counter
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "The number of times  the  T23  clear  timer
                          expired."
                  REFERENCE "10733 5.9 clearTimeouts"
                  ::= { x25PleEntry 29 }

          x25PleResetTimeouts     OBJECT-TYPE
                  SYNTAX  Counter
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "The number of times  the  T22  reset  timer
                          expired."
                  REFERENCE "10733 5.9 resetTimeouts"
                  ::= { x25PleEntry 30 }

          x25PleRestartTimeouts OBJECT-TYPE
                  SYNTAX  Counter
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "The number of times the T20  restart  timer
                          expired."
                  REFERENCE "10733 5.9 restartTimeouts"
                  ::= { x25PleEntry 31 }

          x25PleInterruptTimeouts OBJECT-TYPE
                  SYNTAX  Counter
                  ACCESS  read-only





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               STATUS     mandatory
                  DESCRIPTION
                          "The number of times the T26 interrupt timer
                          expired."
                  REFERENCE "10733 5.9 interruptTimerExpires"
                  ::= { x25PleEntry 32 }

          x25PleDataRxmtTimeouts OBJECT-TYPE
                  SYNTAX  Counter
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "The number of  times  the  T25  data  timer
                          expired."
                  REFERENCE "10733 5.9 dataRetransmissionsTimerExpiries"
                  ::= { x25PleEntry 33 }

          x25PleRetryCountExceededs OBJECT-TYPE
                  SYNTAX  Counter
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "The number of times  a  retry  counter  was
                          exhausted."
                  REFERENCE "10733 5.9 retryCountsExceeded"
                  ::= { x25PleEntry 34 }

          x25PleClearCountExceededs OBJECT-TYPE
                  SYNTAX  Counter
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "The number of times the R23 clear count was
                          exceeded."
                  REFERENCE "10733 5.9 clearCountsExceeded"
                  ::= { x25PleEntry 35 }

          x25PleClearEntriesRequested OBJECT-TYPE
                  SYNTAX  INTEGER (1..65535)
                  ACCESS  read-write
                  STATUS  mandatory
                  DESCRIPTION
                          "The requested number of  entries  this  PLE
                          will keep in the x25ClearedCircuit table."
                  ::= { x25PleEntry 36 }





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          x25PleClearEntriesGranted OBJECT-TYPE
                  SYNTAX  INTEGER (1..65535)
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "The number entries the agent will  keep  in
                          the x25ClearedCircuit Table."
                  ::= { x25PleEntry 37 }

          x25PleDefCallParamId OBJECT-TYPE
                  SYNTAX  OBJECT IDENTIFIER
                  ACCESS  read-write
                  STATUS  mandatory
                  DESCRIPTION
                          "This  identifies  the   instance   of   the
                          x25CallParmIndex   for   the  entry  in  the
                          x25callParm table which contains the default
                          call parameters for this Ple."
                  ::= { x25PleEntry 38 }



          -- ###########################################################
          --                    X.25 Channel Table
          -- ###########################################################

          x25ChannelTable OBJECT-TYPE
                  SYNTAX  SEQUENCE OF X25ChannelEntry
                  ACCESS  not-accessible
                  STATUS  mandatory
                  -- See ISO 8208, Section 3.7
                  DESCRIPTION
                          "These objects contain information about the
                          channel  number  configuration  in  an  X.25
                          PLE."
                  ::= { x25 2 }

          x25ChannelEntry OBJECT-TYPE
                  SYNTAX  X25ChannelEntry
                  ACCESS  not-accessible
                  STATUS  mandatory
                  DESCRIPTION
                          "Entries of x25ChannelTable."
                  -- REFERENCE This provides the information
                  -- available in logicalChannelAssignments.





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               INDEX {    x25ChannelIndex }
                  ::= { x25ChannelTable 1 }

          X25ChannelEntry ::= SEQUENCE {
                  x25ChannelIndex
                          INTEGER,
                  x25ChannelLIC
                          INTEGER,
                  x25ChannelHIC
                          INTEGER,
                  x25ChannelLTC
                          INTEGER,
                  x25ChannelHTC
                          INTEGER,
                  x25ChannelLOC
                          INTEGER,
                  x25ChannelHOC
                          INTEGER
                  }

          x25ChannelIndex OBJECT-TYPE
                  SYNTAX  INTEGER (1..65535)
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "A value that uniquely identifies  the  X.25
                          PLE   subnetwork  and  matches  its  ifIndex
                          value."
                  ::= { x25ChannelEntry 1 }

          x25ChannelLIC OBJECT-TYPE
                  SYNTAX  INTEGER (1..4096)
                  ACCESS  read-write
                  STATUS  mandatory
                  DESCRIPTION
                          "Lowest Incoming channel."
                  ::= { x25ChannelEntry 2 }

          x25ChannelHIC OBJECT-TYPE
                  SYNTAX  INTEGER (1..4096)
                  ACCESS  read-write
                  STATUS  mandatory
                  DESCRIPTION
                          "Highest Incoming channel."
                  ::= { x25ChannelEntry 3 }





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          x25ChannelLTC OBJECT-TYPE
                  SYNTAX  INTEGER (1..4096)
                  ACCESS  read-write
                  STATUS  mandatory
                  DESCRIPTION
                          "Lowest Two-way channel."
                  ::= { x25ChannelEntry 4 }

          x25ChannelHTC OBJECT-TYPE
                  SYNTAX  INTEGER (1..4096)
                  ACCESS  read-write
                  STATUS  mandatory
                  DESCRIPTION
                          "Highest Two-way channel."
                  ::= { x25ChannelEntry 5 }

          x25ChannelLOC OBJECT-TYPE
                  SYNTAX  INTEGER (1..4096)
                  ACCESS  read-write
                  STATUS  mandatory
                  DESCRIPTION
                          "Lowest outgoing channel."
                  ::= { x25ChannelEntry 6 }

          x25ChannelHOC OBJECT-TYPE
                  SYNTAX  INTEGER (1..4096)
                  ACCESS  read-write
                  STATUS  mandatory
                  DESCRIPTION
                          "Highest outgoing channel."
                  ::= { x25ChannelEntry 7 }





          -- ###########################################################
          --          X25 Per Connection Information Table
          -- ###########################################################

          x25CircuitTable OBJECT-TYPE
                  SYNTAX  SEQUENCE OF X25CircuitEntry
                  ACCESS  not-accessible
                  STATUS  mandatory
                  DESCRIPTION





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                  "These objects contain  general  information
                          about a specific connection of an X.25 PLE."
                  ::= { x25 3 }

          x25CircuitEntry OBJECT-TYPE
                  SYNTAX  X25CircuitEntry
                  ACCESS  not-accessible
                  STATUS  mandatory
                  DESCRIPTION
                          "Entries of x25CircuitTable."
                  INDEX { x25CircuitIndex,
                          x25CircuitChannel }
                  ::= { x25CircuitTable 1 }

          X25CircuitEntry ::= SEQUENCE {
                  x25CircuitIndex
                          INTEGER,
                  x25CircuitChannel
                          INTEGER,
                  x25CircuitName
                          DisplayString,
                  x25CircuitEstablishTime
                          TimeTicks,
                  x25CircuitStatus
                          INTEGER,
                  x25CircuitDirection
                          INTEGER,
                  x25CircuitCallParamId
                          OBJECT IDENTIFIER,
                  x25CircuitRemoteDteAddress
                          X25Address,
                  x25CircuitCalledDteAddress
                          X25Address,
                  x25CircuitCallingDteAddress
                          X25Address,
                  x25CircuitOriginallyCalledAddress
                          X25Address,
                  x25CircuitInOctets
                          Counter,
                  x25CircuitInPdus
                          Counter,
                  x25CircuitInRemotelyInitiatedResets
                          Counter,
                  x25CircuitInProviderInitiatedResets
                          Counter,





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               x25CircuitInInterrupts
                          Counter,
                  x25CircuitOutOctets
                          Counter,
                  x25CircuitOutPdus
                          Counter,
                  x25CircuitOutInterrupts
                          Counter,
                  x25CircuitDataRetransmissionTimeouts
                          Counter,
                  x25CircuitResetTimeouts
                          Counter,
                  x25CircuitInterruptTimeouts
                          Counter
                  }

          x25CircuitIndex OBJECT-TYPE
                  SYNTAX  INTEGER (1..65535)
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "A value that uniquely identifies  the  X.25
                          PLE   subnetwork  and  matches  its  ifIndex
                          value."
                  ::= { x25CircuitEntry 1 }

          x25CircuitChannel OBJECT-TYPE
                  SYNTAX  INTEGER (1..4096)
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "The channel number for this connection."
                  ::= { x25CircuitEntry 2 }

          x25CircuitName OBJECT-TYPE
                  SYNTAX  DisplayString (SIZE (0..255))
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "A name associated with this connection."
                  ::= { x25CircuitEntry 3 }


          x25CircuitEstablishTime OBJECT-TYPE
                  SYNTAX  TimeTicks





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               ACCESS     read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "Value of sysUpTime  when  the  channel  was
                          associated with this connection."
                  ::= { x25CircuitEntry 4 }

          x25CircuitStatus OBJECT-TYPE
                  SYNTAX  INTEGER {               -- state table states
                          closed(1),              -- (p1)
                          calling(2),             -- (p2,p3,p5)
                          open(3),                -- (p4)
                          clearing(4),            -- (p6,p7)
                          pvc(5),
                          pvcResetting(6)}
                  ACCESS  read-write
                  STATUS  mandatory
                  -- See ISO 8208, table 33 for (p<n>) state table
                  DESCRIPTION
                          "The  current  status  of  this  connection.
                          Setting  the connection to closed closes the
                          connection (not for PVC, a PVC  can  not  be
                          set to closed).

                          An entry in the closed state may be  deleted
                          or  reused  at the agent's convence.  If the
                          entry is  kept  in  the  closed  state,  the
                          values of the parameters associated with the
                          entry must be correct."
                  ::= { x25CircuitEntry 5 }

          x25CircuitDirection OBJECT-TYPE
                  SYNTAX  INTEGER {
                          incoming(1),
                          outgoing(2) }
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "The direction of the call that  established
                          this connection."
                  REFERENCE "10733 direction"
                  ::= { x25CircuitEntry 6 }

          x25CircuitCallParamId OBJECT-TYPE
                  SYNTAX  OBJECT IDENTIFIER





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               ACCESS     read-write
                  STATUS  mandatory
                  DESCRIPTION
                          "This  identifies  the   instance   of   the
                          x25CallParmIndex   for   the  entry  in  the
                          x25callParm table which  contains  the  call
                          parameters in use with this call.  The entry
                          referenced must contain the values that  are
                          currently  in use by the circuit rather than
                          proposed values."
                  ::= { x25CircuitEntry 7 }

          x25CircuitRemoteDteAddress OBJECT-TYPE
                  SYNTAX  X25Address
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "The address of  the  remote  DTE  for  this
                          connection."
                  ::= { x25CircuitEntry 8 }

          x25CircuitCalledDteAddress OBJECT-TYPE
                  SYNTAX  X25Address
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "Destination DTE address used when the  call
                          was    placed    that    established    this
                          connection."
                  REFERENCE "10733 calledDTEAddress"
                  ::= { x25CircuitEntry 9 }

          x25CircuitCallingDteAddress OBJECT-TYPE
                  SYNTAX  X25Address
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "The  calling  DTE  address  from  the  call
                          packet.   For  outgoing  calls, this will be
                          the  address  of  the  local  DTE  for  this
                          connection."
                  REFERENCE "10733 callingDTEAddress"
                  ::= { x25CircuitEntry 10 }

          x25CircuitOriginallyCalledAddress OBJECT-TYPE





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               SYNTAX     X25Address
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "The originally called address."
                  REFERENCE "10733 originallyCalledAddress"
                  ::= { x25CircuitEntry 11 }



                          -- X25 Circuit data flow statistics


          x25CircuitInOctets OBJECT-TYPE
                  SYNTAX  Counter
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "The number of octets of user data delivered
                          to upper layer."
                  REFERENCE "5.11 octetsReceivedCounter"
                  ::= { x25CircuitEntry 12 }

          x25CircuitInPdus OBJECT-TYPE
                  SYNTAX  Counter
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "The  number  of  PDUs  received  for   this
                          connection."
                  REFERENCE "10733 5.11 dataPacketsReceived"
                  ::= { x25CircuitEntry 13 }

          x25CircuitInRemotelyInitiatedResets OBJECT-TYPE
                  SYNTAX  Counter
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "The number  of  Resets  received  for  this
                          connection    with   cause   code   of   DTE
                          initiated."
                  REFERENCE "10733 remotelyInitiatedResets"
                  ::= { x25CircuitEntry 14 }

          x25CircuitInProviderInitiatedResets OBJECT-TYPE





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               SYNTAX     Counter
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "The number  of  Resets  received  for  this
                          connection  with  cause  code other than DTE
                          initiated."
                  REFERENCE "10733 ProviderInitiatedResets"
                  ::= { x25CircuitEntry 15 }

          x25CircuitInInterrupts OBJECT-TYPE
                  SYNTAX  Counter
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "The number of  interrupt  packets  received
                          for this connection."
                  REFERENCE "10733 interruptPacketsReceived"
                  ::= { x25CircuitEntry 16 }

          x25CircuitOutOctets OBJECT-TYPE
                  SYNTAX  Counter
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "The number of Octets of user data sent  for
                          this connection."
                  REFERENCE "10733 5.11 octetsSentCounter"
                  ::= { x25CircuitEntry 17 }

          x25CircuitOutPdus OBJECT-TYPE
                  SYNTAX  Counter
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "The  number  of  packets  sent   for   this
                          connection."
                  REFERENCE "10733 5.11 dataPacketsSent"
                  ::= { x25CircuitEntry 18 }

          x25CircuitOutInterrupts OBJECT-TYPE
                  SYNTAX  Counter
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION





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                  "The number of  interrupt  packets  sent  on
                          this connection."
                  REFERENCE "10733 interruptPacketsSent"
                  ::= { x25CircuitEntry 19 }


                          -- X25 Per Connection Timer Table
          x25CircuitDataRetransmissionTimeouts OBJECT-TYPE
                  SYNTAX  Counter
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "The  number   of   times   the   T25   data
                          retransmission   timer   expired   for  this
                          connection."
                  REFERENCE "10733 5.11 dataRetransmissionTimerExpiries"
                  ::= { x25CircuitEntry 20 }

          x25CircuitResetTimeouts OBJECT-TYPE
                  SYNTAX  Counter
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "The number of times  the  T22  reset  timer
                          expired for this connection."
                  REFERENCE "10733 5.11 resetTimeouts"
                  ::= { x25CircuitEntry 21 }

          x25CircuitInterruptTimeouts OBJECT-TYPE
                  SYNTAX  Counter
                  ACCESS  read-only
                  STATUS  mandatory
                  DESCRIPTION
                          "The number of times the T26 Interrupt timer
                          expired for this connection."
                  REFERENCE "10733 interruptTimerExpiries"
                  ::= { x25CircuitEntry 22 }


Dean Throop		throop@dg-rtp.dg.com