RFC1231-MIB
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SNMP编程

开发平台:

C/C++

  1. -- Changes for RFC1231 (Token Ring MIB):
  2. --      Changes from RFC-1239 applied which include:
  3. --              removing import of experimental,
  4. --              adding import of transmission, changing
  5. --              dot5 to be { transmission 9 }
  6. --              instead of { experimental 4 }
  7. --      Added import for Counter.
  8. --      Changed the status from optional to mandatory for
  9. --              dot5StatsFreqErrors.
  10. -- dperkins@scruznet.com
  11.           RFC1231-MIB DEFINITIONS ::= BEGIN
  12.           -- RFC1231
  13.           -- May 91
  14.           --             IEEE 802.5 Token Ring MIB
  15.           IMPORTS
  16.                   Counter
  17.                           FROM RFC1155-SMI
  18.                   transmission
  19.                           FROM RFC1213-MIB
  20.                   OBJECT-TYPE
  21.                           FROM RFC-1212;
  22.           dot5    OBJECT IDENTIFIER ::= { transmission 9 }
  23.           -- All representations of MAC addresses in this MIB Module
  24.           -- use, as a textual convention (i.e. this convention does
  25.           -- not affect their encoding), the data type:
  26.           MacAddress ::= OCTET STRING (SIZE (6))    -- a 6 octet
  27.                                                     -- address in the
  28.                                                     -- "canonical" order
  29.           -- defined by IEEE 802.1a, i.e., as if it were transmitted
  30.           -- least significant bit first, even though 802.5 (in
  31.           -- contrast to other 802.x protocols) requires MAC addresses
  32.           -- to be transmitted most significant bit first.
  33.           --
  34.           -- 16-bit addresses, if needed, are represented by setting
  35.           -- their upper 4 octets to all 0's, i.e., AAFF would be
  36.           -- represented as 00000000AAFF.
  37.           -- The Interface Table
  38.           -- This table contains state and parameter information which
  39.           -- is specific to 802.5 interfaces.  It is mandatory that
  40.           -- systems having 802.5 interfaces implement this table in
  41.           -- addition to the generic interfaces table [4,6] and its
  42.           -- generic extensions [11].
  43.           dot5Table  OBJECT-TYPE
  44.                      SYNTAX  SEQUENCE OF Dot5Entry
  45.                      ACCESS  not-accessible
  46.                      STATUS  mandatory
  47.                      DESCRIPTION
  48.                              "This table contains Token Ring interface
  49.                              parameters and state variables, one entry
  50.                              per 802.5 interface."
  51.                      ::= { dot5 1 }
  52.           dot5Entry  OBJECT-TYPE
  53.                      SYNTAX  Dot5Entry
  54.                      ACCESS  not-accessible
  55.                      STATUS  mandatory
  56.                      DESCRIPTION
  57.                              "A list of Token Ring status and parameter
  58.                               values for an 802.5 interface."
  59.                      INDEX   { dot5IfIndex }
  60.                      ::= { dot5Table 1 }
  61.           Dot5Entry
  62.               ::= SEQUENCE {
  63.                       dot5IfIndex
  64.                           INTEGER,
  65.                       dot5Commands
  66.                           INTEGER,
  67.                       dot5RingStatus
  68.                           INTEGER,
  69.                       dot5RingState
  70.                           INTEGER,
  71.                       dot5RingOpenStatus
  72.                           INTEGER,
  73.                       dot5RingSpeed
  74.                           INTEGER,
  75.                       dot5UpStream
  76.                           MacAddress,
  77.                       dot5ActMonParticipate
  78.                           INTEGER,
  79.                       dot5Functional
  80.                           MacAddress
  81.                   }
  82.           dot5IfIndex  OBJECT-TYPE
  83.                      SYNTAX  INTEGER
  84.                      ACCESS  read-only
  85.                      STATUS  mandatory
  86.                      DESCRIPTION
  87.                              "The value of this object identifies the
  88.                               802.5 interface for which this entry
  89.                               contains management information.  The
  90.                               value of this object for a particular
  91.                               interface has the same value as the
  92.                               ifIndex object, defined in [4,6],
  93.                               for the same interface."
  94.                      ::= { dot5Entry 1 }
  95.           dot5Commands  OBJECT-TYPE
  96.                      SYNTAX  INTEGER {
  97.                                    no-op(1),
  98.                                    open(2),
  99.                                    reset(3),
  100.                                    close(4)
  101.                              }
  102.                      ACCESS  read-write
  103.                      STATUS  mandatory
  104.                      DESCRIPTION
  105.                              "When this object is set to the value of
  106.                               open(2), the station should go into the
  107.                               open state.  The progress and success of
  108.                               the open is given by the values of the
  109.                               objects dot5RingState and
  110.                               dot5RingOpenStatus.
  111.                                   When this object is set to the value
  112.                               of reset(3), then the station should do
  113.                               a reset.  On a reset, all MIB counters
  114.                               should retain their values, if possible.
  115.                               Other side affects are dependent on the
  116.                               hardware chip set.
  117.                                   When this object is set to the value
  118.                               of close(4), the station should go into
  119.                               the stopped state by removing itself
  120.                               from the ring.
  121.                                   Setting this object to a value of
  122.                               no-op(1) has no effect.
  123.                                   When read, this object always has a
  124.                               value of no-op(1)."
  125.                      ::= { dot5Entry 2 }
  126.           dot5RingStatus OBJECT-TYPE
  127.                      SYNTAX  INTEGER
  128.                      ACCESS  read-only
  129.                      STATUS  mandatory
  130.                      DESCRIPTION
  131.                              "The current interface status which can
  132.                              be used to diagnose fluctuating problems
  133.                              that can occur on token rings, after a
  134.                              station has successfully been added to
  135.                              the ring.
  136.                                 Before an open is completed, this
  137.                              object has the value for the 'no status'
  138.                              condition.  The dot5RingState and
  139.                              dot5RingOpenStatus objects provide for
  140.                              debugging problems when the station
  141.                              can not even enter the ring.
  142.                                  The object's value is a sum of
  143.                              values, one for each currently applicable
  144.                              condition.  The following values are
  145.                              defined for various conditions:
  146.                                      0 = No Problems detected
  147.                                     32 = Ring Recovery
  148.                                     64 = Single Station
  149.                                    256 = Remove Received
  150.                                    512 = reserved
  151.                                   1024 = Auto-Removal Error
  152.                                   2048 = Lobe Wire Fault
  153.                                   4096 = Transmit Beacon
  154.                                   8192 = Soft Error
  155.                                  16384 = Hard Error
  156.                                  32768 = Signal Loss
  157.                                 131072 = no status, open not completed."
  158.                      ::= { dot5Entry 3 }
  159.           dot5RingState  OBJECT-TYPE
  160.                      SYNTAX  INTEGER {
  161.                                    opened(1),
  162.                                    closed(2),
  163.                                    opening(3),
  164.                                    closing(4),
  165.                                    openFailure(5),
  166.                                    ringFailure(6)
  167.                              }
  168.                      ACCESS  read-only
  169.                      STATUS  mandatory
  170.                      DESCRIPTION
  171.                              "The current interface state with respect
  172.                              to entering or leaving the ring."
  173.                      ::= { dot5Entry 4 }
  174.           dot5RingOpenStatus  OBJECT-TYPE
  175.                      SYNTAX  INTEGER {
  176.                                    noOpen(1),     -- no open attempted
  177.                                    badParam(2),
  178.                                    lobeFailed(3),
  179.                                    signalLoss(4),
  180.                                    insertionTimeout(5),
  181.                                    ringFailed(6),
  182.                                    beaconing(7),
  183.                                    duplicateMAC(8),
  184.                                    requestFailed(9),
  185.                                    removeReceived(10),
  186.                                    open(11)      -- last open successful
  187.                              }
  188.                      ACCESS  read-only
  189.                      STATUS  mandatory
  190.                      DESCRIPTION
  191.                              "This object indicates the success, or the
  192.                              reason for failure, of the station's most
  193.                              recent attempt to enter the ring."
  194.                      ::= { dot5Entry 5 }
  195.           dot5RingSpeed  OBJECT-TYPE
  196.                      SYNTAX  INTEGER {
  197.                                    unknown(1),
  198.                                    oneMegabit(2),
  199.                                    fourMegabit(3),
  200.                                    sixteenMegabit(4)
  201.                              }
  202.                      ACCESS  read-write
  203.                      STATUS  mandatory
  204.                      DESCRIPTION
  205.                              "The ring's bandwidth."
  206.                      ::= { dot5Entry 6 }
  207.           dot5UpStream  OBJECT-TYPE
  208.                      SYNTAX  MacAddress
  209.                      ACCESS  read-only
  210.                      STATUS  mandatory
  211.                      DESCRIPTION
  212.                              "The MAC-address of the up stream neighbor
  213.                               station in the ring."
  214.                      ::= { dot5Entry 7 }
  215.           dot5ActMonParticipate OBJECT-TYPE
  216.                      SYNTAX  INTEGER {
  217.                                    true(1),
  218.                                    false(2)
  219.                              }
  220.                      ACCESS  read-write
  221.                      STATUS  mandatory
  222.                      DESCRIPTION
  223.                              "If this object has a value of true(1) then
  224.                              this interface will participate in the
  225.                              active monitor selection process.  If the
  226.                              value is false(2) then it will not.
  227.                              Setting this object might not have an
  228.                              effect until the next time the interface
  229.                              is opened."
  230.                      ::= { dot5Entry 8 }
  231.           dot5Functional OBJECT-TYPE
  232.                      SYNTAX  MacAddress
  233.                      ACCESS  read-write
  234.                      STATUS  mandatory
  235.                      DESCRIPTION
  236.                              "The bit mask of all Token Ring functional
  237.                              addresses for which this interface will
  238.                              accept frames."
  239.                      ::= { dot5Entry 9 }
  240.           --   The Statistics Table
  241.           -- This table contains statistics and error counter which are
  242.           -- specific to 802.5 interfaces.  It is mandatory that systems
  243.           -- having 802.5 interfaces implement this table.
  244.           dot5StatsTable  OBJECT-TYPE
  245.                      SYNTAX  SEQUENCE OF Dot5StatsEntry
  246.                      ACCESS  not-accessible
  247.                      STATUS  mandatory
  248.                      DESCRIPTION
  249.                              "A table containing Token Ring statistics,
  250.                              one entry per 802.5 interface.
  251.                                  All the statistics are defined using
  252.                              the syntax Counter as 32-bit wrap around
  253.                              counters.  Thus, if an interface's
  254.                              hardware maintains these statistics in
  255.                              16-bit counters, then the agent must read
  256.                              the hardware's counters frequently enough
  257.                              to prevent loss of significance, in order
  258.                              to maintain 32-bit counters in software."
  259.                      ::= { dot5 2 }
  260.           dot5StatsEntry  OBJECT-TYPE
  261.                      SYNTAX  Dot5StatsEntry
  262.                      ACCESS  not-accessible
  263.                      STATUS  mandatory
  264.                      DESCRIPTION
  265.                              "An entry contains the 802.5 statistics
  266.                               for a particular interface."
  267.                      INDEX   { dot5StatsIfIndex }
  268.                      ::= { dot5StatsTable 1 }
  269.           Dot5StatsEntry
  270.               ::= SEQUENCE {
  271.                       dot5StatsIfIndex
  272.                           INTEGER,
  273.                       dot5StatsLineErrors
  274.                           Counter,
  275.                       dot5StatsBurstErrors
  276.                           Counter,
  277.                       dot5StatsACErrors
  278.                           Counter,
  279.                       dot5StatsAbortTransErrors
  280.                           Counter,
  281.                       dot5StatsInternalErrors
  282.                           Counter,
  283.                       dot5StatsLostFrameErrors
  284.                           Counter,
  285.                       dot5StatsReceiveCongestions
  286.                           Counter,
  287.                       dot5StatsFrameCopiedErrors
  288.                           Counter,
  289.                       dot5StatsTokenErrors
  290.                           Counter,
  291.                       dot5StatsSoftErrors
  292.                           Counter,
  293.                       dot5StatsHardErrors
  294.                           Counter,
  295.                       dot5StatsSignalLoss
  296.                           Counter,
  297.                       dot5StatsTransmitBeacons
  298.                           Counter,
  299.                       dot5StatsRecoverys
  300.                           Counter,
  301.                       dot5StatsLobeWires
  302.                           Counter,
  303.                       dot5StatsRemoves
  304.                           Counter,
  305.                       dot5StatsSingles
  306.                           Counter,
  307.                       dot5StatsFreqErrors
  308.                           Counter
  309.                   }
  310.           dot5StatsIfIndex  OBJECT-TYPE
  311.                      SYNTAX  INTEGER
  312.                      ACCESS  read-only
  313.                      STATUS  mandatory
  314.                      DESCRIPTION
  315.                              "The value of this object identifies the
  316.                              802.5 interface for which this entry
  317.                              contains management information.  The
  318.                              value of this object for a particular
  319.                              interface has the same value as the
  320.                              ifIndex object, defined in [4,6], for
  321.                              the same interface."
  322.                      ::= { dot5StatsEntry 1 }
  323.           dot5StatsLineErrors OBJECT-TYPE
  324.                      SYNTAX  Counter
  325.                      ACCESS  read-only
  326.                      STATUS  mandatory
  327.                      DESCRIPTION
  328.                              "This counter is incremented when a frame
  329.                              or token is copied or repeated by a
  330.                              station, the E bit is zero in the frame
  331.                              or token and one of the following
  332.                              conditions exists: 1) there is a
  333.                              non-data bit (J or K bit) between the SD
  334.                              and the ED of the frame or token, or
  335.                              2) there is an FCS error in the frame."
  336.                      ::= { dot5StatsEntry 2 }
  337.           dot5StatsBurstErrors OBJECT-TYPE
  338.                      SYNTAX  Counter
  339.                      ACCESS  read-only
  340.                      STATUS  mandatory
  341.                      DESCRIPTION
  342.                              "This counter is incremented when a station
  343.                              detects the absence of transitions for five
  344.                              half-bit timers (burst-five error)."
  345.                      ::= { dot5StatsEntry 3 }
  346.           dot5StatsACErrors OBJECT-TYPE
  347.                      SYNTAX  Counter
  348.                      ACCESS  read-only
  349.                      STATUS  mandatory
  350.                      DESCRIPTION
  351.                              "This counter is incremented when a station
  352.                              receives an AMP or SMP frame in which A is
  353.                              equal to C is equal to 0, and then receives
  354.                              another SMP frame with A is equal to C is
  355.                              equal to 0 without first receiving an AMP
  356.                              frame. It denotes a station that cannot set
  357.                              the AC bits properly."
  358.                      ::= { dot5StatsEntry 4 }
  359.           dot5StatsAbortTransErrors OBJECT-TYPE
  360.                      SYNTAX  Counter
  361.                      ACCESS  read-only
  362.                      STATUS  mandatory
  363.                      DESCRIPTION
  364.                              "This counter is incremented when a station
  365.                              transmits an abort delimiter while
  366.                              transmitting."
  367.                      ::= { dot5StatsEntry 5 }
  368.           dot5StatsInternalErrors OBJECT-TYPE
  369.                      SYNTAX  Counter
  370.                      ACCESS  read-only
  371.                      STATUS  mandatory
  372.                      DESCRIPTION
  373.                              "This counter is incremented when a station
  374.                              recognizes an internal error."
  375.                      ::= { dot5StatsEntry 6 }
  376.           dot5StatsLostFrameErrors OBJECT-TYPE
  377.                      SYNTAX  Counter
  378.                      ACCESS  read-only
  379.                      STATUS  mandatory
  380.                      DESCRIPTION
  381.                              "This counter is incremented when a station
  382.                              is transmitting and its TRR timer expires.
  383.                              This condition denotes a condition where a
  384.                              transmitting station in strip mode does not
  385.                              receive the trailer of the frame before the
  386.                              TRR timer goes off."
  387.                      ::= { dot5StatsEntry 7 }
  388.           dot5StatsReceiveCongestions OBJECT-TYPE
  389.                      SYNTAX  Counter
  390.                      ACCESS  read-only
  391.                      STATUS  mandatory
  392.                      DESCRIPTION
  393.                              "This counter is incremented when a station
  394.                              recognizes a frame addressed to its
  395.                              specific address, but has no available
  396.                              buffer space indicating that the station
  397.                              is congested."
  398.                      ::= { dot5StatsEntry 8 }
  399.           dot5StatsFrameCopiedErrors OBJECT-TYPE
  400.                      SYNTAX  Counter
  401.                      ACCESS  read-only
  402.                      STATUS  mandatory
  403.                      DESCRIPTION
  404.                              "This counter is incremented when a station
  405.                              recognizes a frame addressed to its
  406.                              specific address and detects that the FS
  407.                              field A bits are set to 1 indicating a
  408.                              possible line hit or duplicate address."
  409.                      ::= { dot5StatsEntry 9 }
  410.           dot5StatsTokenErrors OBJECT-TYPE
  411.                      SYNTAX  Counter
  412.                      ACCESS  read-only
  413.                      STATUS  mandatory
  414.                      DESCRIPTION
  415.                              "This counter is incremented when a station
  416.                              acting as the active monitor recognizes an
  417.                              error condition that needs a token
  418.                              transmitted."
  419.                      ::= { dot5StatsEntry 10 }
  420.           dot5StatsSoftErrors OBJECT-TYPE
  421.                      SYNTAX  Counter
  422.                      ACCESS  read-only
  423.                      STATUS  mandatory
  424.                      DESCRIPTION
  425.                              "The number of Soft Errors the interface
  426.                              has detected. It directly corresponds to
  427.                              the number of Report Error MAC frames
  428.                              that this interface has transmitted.
  429.                              Soft Errors are those which are
  430.                              recoverable by the MAC layer protocols."
  431.                      ::= { dot5StatsEntry 11 }
  432.           dot5StatsHardErrors OBJECT-TYPE
  433.                      SYNTAX  Counter
  434.                      ACCESS  read-only
  435.                      STATUS  mandatory
  436.                      DESCRIPTION
  437.                              "The number of times this interface has
  438.                              detected an immediately recoverable
  439.                              fatal error.  It denotes the number of
  440.                              times this interface is either
  441.                              transmitting or receiving beacon MAC
  442.                              frames."
  443.                      ::= { dot5StatsEntry 12 }
  444.           dot5StatsSignalLoss OBJECT-TYPE
  445.                      SYNTAX  Counter
  446.                      ACCESS  read-only
  447.                      STATUS  mandatory
  448.                      DESCRIPTION
  449.                              "The number of times this interface has
  450.                              detected the loss of signal condition from
  451.                              the ring."
  452.                      ::= { dot5StatsEntry 13 }
  453.           dot5StatsTransmitBeacons OBJECT-TYPE
  454.                      SYNTAX  Counter
  455.                      ACCESS  read-only
  456.                      STATUS  mandatory
  457.                      DESCRIPTION
  458.                              "The number of times this interface has
  459.                              transmitted a beacon frame."
  460.                      ::= { dot5StatsEntry 14 }
  461.           dot5StatsRecoverys OBJECT-TYPE
  462.                      SYNTAX  Counter
  463.                      ACCESS  read-only
  464.                      STATUS  mandatory
  465.                      DESCRIPTION
  466.                              "The number of Claim Token MAC frames
  467.                              received or transmitted after the interface
  468.                              has received a Ring Purge MAC frame.  This
  469.                              counter signifies the number of times the
  470.                              ring has been purged and is being recovered
  471.                              back into a normal operating state."
  472.                      ::= { dot5StatsEntry 15 }
  473.           dot5StatsLobeWires OBJECT-TYPE
  474.                      SYNTAX  Counter
  475.                      ACCESS  read-only
  476.                      STATUS  mandatory
  477.                      DESCRIPTION
  478.                              "The number of times the interface has
  479.                              detected an open or short circuit in the
  480.                              lobe data path.  The adapter will be closed
  481.                              and dot5RingState will signify this
  482.                              condition."
  483.                      ::= { dot5StatsEntry 16 }
  484.           dot5StatsRemoves OBJECT-TYPE
  485.                      SYNTAX  Counter
  486.                      ACCESS  read-only
  487.                      STATUS  mandatory
  488.                      DESCRIPTION
  489.                              "The number of times the interface has
  490.                              received a Remove Ring Station MAC frame
  491.                              request.  When this frame is received
  492.                              the interface will enter the close state
  493.                              and dot5RingState will signify this
  494.                              condition."
  495.                      ::= { dot5StatsEntry 17 }
  496.           dot5StatsSingles OBJECT-TYPE
  497.                      SYNTAX  Counter
  498.                      ACCESS  read-only
  499.                      STATUS  mandatory
  500.                      DESCRIPTION
  501.                              "The number of times the interface has
  502.                              sensed that it is the only station on the
  503.                              ring.  This will happen if the interface
  504.                              is the first one up on a ring, or if
  505.                              there is a hardware problem."
  506.                      ::= { dot5StatsEntry 18 }
  507.           dot5StatsFreqErrors OBJECT-TYPE
  508.                      SYNTAX  Counter
  509.                      ACCESS  read-only
  510.                      STATUS  mandatory
  511.                      DESCRIPTION
  512.                              "The number of times the interface has
  513.                              detected that the frequency of the
  514.                              incoming signal differs from the expected
  515.                              frequency by more than that specified by
  516.                              the IEEE 802.5 standard, see chapter 7
  517.                              in [10]."
  518.                      ::= { dot5StatsEntry 19 }
  519.           -- The Timer Table
  520.           -- This group contains the values of the timers defined in
  521.           -- [10] for 802.5 interfaces.  It is optional that systems
  522.           -- having 802.5 interfaces implement this group.
  523.           dot5TimerTable  OBJECT-TYPE
  524.                      SYNTAX  SEQUENCE OF Dot5TimerEntry
  525.                      ACCESS  not-accessible
  526.                      STATUS  mandatory
  527.                      DESCRIPTION
  528.                              "This table contains Token Ring interface
  529.                              timer values, one entry per 802.5
  530.                              interface."
  531.                      ::= { dot5 5 }
  532.           dot5TimerEntry  OBJECT-TYPE
  533.                      SYNTAX  Dot5TimerEntry
  534.                      ACCESS  not-accessible
  535.                      STATUS  mandatory
  536.                      DESCRIPTION
  537.                              "A list of Token Ring timer values for an
  538.                              802.5 interface."
  539.                      INDEX   { dot5TimerIfIndex }
  540.                      ::= { dot5TimerTable 1 }
  541.           Dot5TimerEntry
  542.               ::= SEQUENCE {
  543.                      dot5TimerIfIndex
  544.                          INTEGER,
  545.                      dot5TimerReturnRepeat
  546.                          INTEGER,
  547.                      dot5TimerHolding
  548.                          INTEGER,
  549.                      dot5TimerQueuePDU
  550.                          INTEGER,
  551.                      dot5TimerValidTransmit
  552.                          INTEGER,
  553.                      dot5TimerNoToken
  554.                          INTEGER,
  555.                      dot5TimerActiveMon
  556.                          INTEGER,
  557.                      dot5TimerStandbyMon
  558.                          INTEGER,
  559.                      dot5TimerErrorReport
  560.                          INTEGER,
  561.                      dot5TimerBeaconTransmit
  562.                          INTEGER,
  563.                      dot5TimerBeaconReceive
  564.                          INTEGER
  565.                  }
  566.           dot5TimerIfIndex  OBJECT-TYPE
  567.                      SYNTAX  INTEGER
  568.                      ACCESS  read-only
  569.                      STATUS  mandatory
  570.                      DESCRIPTION
  571.                              "The value of this object identifies the
  572.                               802.5 interface for which this entry
  573.                               contains timer values.  The value of
  574.                               this object for a particular interface
  575.                               has the same value as the ifIndex
  576.                               object, defined in [4,6], for the same
  577.                               interface."
  578.                      ::= { dot5TimerEntry 1 }
  579.           dot5TimerReturnRepeat  OBJECT-TYPE
  580.                      SYNTAX  INTEGER
  581.                      ACCESS  read-only
  582.                      STATUS  mandatory
  583.                      DESCRIPTION
  584.                              "The time-out value used to ensure the
  585.                              interface will return to Repeat State, in
  586.                              units of 100 micro-seconds.  The value
  587.                              should be greater than the maximum ring
  588.                              latency.
  589.                                  Implementors are encouraged to provide
  590.                              read-write access to this object if that is
  591.                              possible/useful in their system, but giving
  592.                              due consideration to the dangers of
  593.                              write-able timers."
  594.                      ::= { dot5TimerEntry 2 }
  595.           dot5TimerHolding  OBJECT-TYPE
  596.                      SYNTAX  INTEGER
  597.                      ACCESS  read-only
  598.                      STATUS  mandatory
  599.                      DESCRIPTION
  600.                              "Maximum period of time a station is
  601.                              permitted to transmit frames after capturing
  602.                              a token, in units of 100 micro-seconds.
  603.                                  Implementors are encouraged to provide
  604.                              read-write access to this object if that is
  605.                              possible/useful in their system, but giving
  606.                              due consideration to the dangers of
  607.                              write-able timers."
  608.                      ::= { dot5TimerEntry 3 }
  609.           dot5TimerQueuePDU  OBJECT-TYPE
  610.                      SYNTAX  INTEGER
  611.                      ACCESS  read-only
  612.                      STATUS  mandatory
  613.                      DESCRIPTION
  614.                              "The time-out value for enqueuing of an SMP
  615.                              PDU after reception of an AMP or SMP
  616.                              frame in which the A and C bits were
  617.                              equal to 0, in units of 100
  618.                              micro-seconds.
  619.                                  Implementors are encouraged to provide
  620.                              read-write access to this object if that is
  621.                              possible/useful in their system, but giving
  622.                              due consideration to the dangers of
  623.                              write-able timers."
  624.                      ::= { dot5TimerEntry 4 }
  625.           dot5TimerValidTransmit OBJECT-TYPE
  626.                      SYNTAX  INTEGER
  627.                      ACCESS  read-only
  628.                      STATUS  mandatory
  629.                      DESCRIPTION
  630.                              "The time-out value used by the active
  631.                              monitor to detect the absence of valid
  632.                              transmissions, in units of 100
  633.                              micro-seconds.
  634.                                  Implementors are encouraged to provide
  635.                              read-write access to this object if that is
  636.                              possible/useful in their system, but giving
  637.                              due consideration to the dangers of
  638.                              write-able timers."
  639.                      ::= { dot5TimerEntry 5 }
  640.           dot5TimerNoToken  OBJECT-TYPE
  641.                      SYNTAX  INTEGER
  642.                      ACCESS  read-only
  643.                      STATUS  mandatory
  644.                      DESCRIPTION
  645.                              "The time-out value used to recover from
  646.                              various-related error situations [9].
  647.                              If N is the maximum number of stations on
  648.                              the ring, the value of this timer is
  649.                              normally:
  650.                              dot5TimerReturnRepeat + N*dot5TimerHolding.
  651.                                  Implementors are encouraged to provide
  652.                              read-write access to this object if that is
  653.                              possible/useful in their system, but giving
  654.                              due consideration to the dangers of
  655.                              write-able timers."
  656.                      ::= { dot5TimerEntry 6 }
  657.           dot5TimerActiveMon  OBJECT-TYPE
  658.                      SYNTAX  INTEGER
  659.                      ACCESS  read-only
  660.                      STATUS  mandatory
  661.                      DESCRIPTION
  662.                              "The time-out value used by the active
  663.                              monitor to stimulate the enqueuing of an
  664.                              AMP PDU for transmission, in units of
  665.                              100 micro-seconds.
  666.                                  Implementors are encouraged to provide
  667.                              read-write access to this object if that is
  668.                              possible/useful in their system, but giving
  669.                              due consideration to the dangers of
  670.                              write-able timers."
  671.                      ::= { dot5TimerEntry 7 }
  672.           dot5TimerStandbyMon  OBJECT-TYPE
  673.                      SYNTAX  INTEGER
  674.                      ACCESS  read-only
  675.                      STATUS  mandatory
  676.                      DESCRIPTION
  677.                              "The time-out value used by the stand-by
  678.                              monitors to ensure that there is an active
  679.                              monitor on the ring and to detect a
  680.                              continuous stream of tokens, in units of
  681.                              100 micro-seconds.
  682.                                  Implementors are encouraged to provide
  683.                              read-write access to this object if that is
  684.                              possible/useful in their system, but giving
  685.                              due consideration to the dangers of
  686.                              write-able timers."
  687.                      ::= { dot5TimerEntry 8 }
  688.           dot5TimerErrorReport  OBJECT-TYPE
  689.                      SYNTAX  INTEGER
  690.                      ACCESS  read-only
  691.                      STATUS  mandatory
  692.                      DESCRIPTION
  693.                              "The time-out value which determines how
  694.                              often a station shall send a Report Error
  695.                              MAC frame to report its error counters,
  696.                              in units of 100 micro-seconds.
  697.                                  Implementors are encouraged to provide
  698.                              read-write access to this object if that is
  699.                              possible/useful in their system, but giving
  700.                              due consideration to the dangers of
  701.                              write-able timers."
  702.                      ::= { dot5TimerEntry 9 }
  703.           dot5TimerBeaconTransmit  OBJECT-TYPE
  704.                      SYNTAX  INTEGER
  705.                      ACCESS  read-only
  706.                      STATUS  mandatory
  707.                      DESCRIPTION
  708.                              "The time-out value which determines how
  709.                              long a station shall remain in the state
  710.                              of transmitting Beacon frames before
  711.                              entering the Bypass state, in units of
  712.                              100 micro-seconds.
  713.                                  Implementors are encouraged to provide
  714.                              read-write access to this object if that is
  715.                              possible/useful in their system, but giving
  716.                              due consideration to the dangers of
  717.                              write-able timers."
  718.                      ::= { dot5TimerEntry 10 }
  719.           dot5TimerBeaconReceive  OBJECT-TYPE
  720.                      SYNTAX  INTEGER
  721.                      ACCESS  read-only
  722.                      STATUS  mandatory
  723.                      DESCRIPTION
  724.                              "The time-out value which determines how
  725.                              long a station shall receive Beacon
  726.                              frames from its downstream neighbor
  727.                              before entering the Bypass state, in
  728.                              units of 100 micro-seconds.
  729.                                  Implementors are encouraged to provide
  730.                              read-write access to this object if that is
  731.                              possible/useful in their system, but giving
  732.                              due consideration to the dangers of
  733.                              write-able timers."
  734.                      ::= { dot5TimerEntry 11 }
  735.           --                      802.5 Interface Tests
  736.           dot5Tests         OBJECT IDENTIFIER ::= { dot5 3 }
  737.           -- The extensions to the interfaces table proposed in [11]
  738.           -- define a table object, ifExtnsTestTable, through which a
  739.           -- network manager can instruct an agent to test an interface
  740.           -- for various faults.  A test to be performed is identified
  741.           -- (as the value of ifExtnsTestType) via an OBJECT IDENTIFIER.
  742.           --
  743.           -- The Full-Duplex Loop Back Test is a common test, defined
  744.           -- in [11] as:
  745.           --
  746.           --    testFullDuplexLoopBack
  747.           --
  748.           -- Invoking this test on a 802.5 interface causes the
  749.           -- interface to check the path from memory through the
  750.           -- chip set's internal logic and back to memory, thus
  751.           -- checking the proper functioning of the systems's
  752.           -- interface to the chip set.
  753.           -- The Insert Function test is defined by:
  754.           testInsertFunc    OBJECT IDENTIFIER ::= { dot5Tests 1 }
  755.           -- Invoking this test causes the station to test the insert
  756.           -- ring logic of the hardware if the station's lobe media
  757.           -- cable is connected to a wiring concentrator.  Note that
  758.           -- this command inserts the station into the network, and
  759.           -- thus, could cause problems if the station is connected
  760.           -- to a operational network.
  761.           --                 802.5 Hardware Chip Sets
  762.           dot5ChipSets   OBJECT IDENTIFIER ::= { dot5 4 }
  763.           -- The extensions to the interfaces table proposed in [11]
  764.           -- define an object, ifExtnsChipSet, with the syntax of
  765.           -- OBJECT IDENTIFIER, to identify the hardware chip set in
  766.           -- use by an interface.  That definition specifies just
  767.           -- one applicable object identifier:
  768.           --
  769.           --    unknownChipSet
  770.           --
  771.           -- for use as the value of ifExtnsChipSet when the specific
  772.           -- chip set is unknown.
  773.           --
  774.           -- This MIB defines the following for use as values of
  775.           -- ifExtnsChipSet:
  776.              -- IBM 16/4 Mb/s
  777.           chipSetIBM16       OBJECT IDENTIFIER ::= { dot5ChipSets 1 }
  778.              -- TI 4Mb/s
  779.           chipSetTItms380    OBJECT IDENTIFIER ::= { dot5ChipSets 2 }
  780.              -- TI 16/4 Mb/s
  781.           chipSetTItms380c16 OBJECT IDENTIFIER ::= { dot5ChipSets 3 }
  782.           END