path: root/MIBS/dasan/DASAN-BRIDGE-MIB

-- *****************************************************************
-- dasan-bridge-mib.my  
--   DASAN Enterprise Bridge MIBs                    
-- 
--   Aug 3. 2005 dhlee@da-san.com created.
--
-- ***************************************************************** 
 
DASAN-BRIDGE-MIB DEFINITIONS ::= BEGIN
IMPORTS
    MODULE-IDENTITY,
    OBJECT-TYPE,
    Counter32, Gauge32, Counter64, Unsigned32,
    Integer32, TimeTicks, mib-2,
    NOTIFICATION-TYPE
    			FROM SNMPv2-SMI
    TEXTUAL-CONVENTION, DisplayString,
    PhysAddress, TruthValue, RowStatus,
    TimeStamp, AutonomousType, TestAndIncr
                        FROM SNMPv2-TC

    MODULE-COMPLIANCE,
    OBJECT-GROUP        FROM SNMPv2-CONF
    ifIndex             FROM IF-MIB
    dasanEvents,dasanMgmt,dasanModules
                        FROM DASAN-SMI 
    dasanSwitchMIBObjects,dsSwitchModules
			FROM DASAN-SWITCH-MIB;
           
    MacAddress ::= OCTET STRING (SIZE (6))
    BridgeId ::= OCTET STRING (SIZE (8))
    Timeout ::= INTEGER     
 
                          
dsBridge MODULE-IDENTITY
    LAST-UPDATED   "200508030000Z"
    ORGANIZATION   "Dasan Co., Ltd."
    CONTACT-INFO
                   "Dasan Co., Ltd."
    DESCRIPTION
        "The MIB module to describe bridge of DASAN product."
    ::= { dsSwitchModules 22 }
 
    dsTp OBJECT IDENTIFIER ::= { dsBridge 3 }
 
--
-- Textual Convention
-- 

PortList ::= TEXTUAL-CONVENTION
    STATUS      current
    DESCRIPTION
        "Each octet within this value specifies a set of eight
        ports, with the first octet specifying ports 1 through
        8, the second octet specifying ports 9 through 16, etc.
        Within each octet, the most significant bit represents
        the lowest numbered port, and the least significant bit
        represents the highest numbered port.  Thus, each port
        of the bridge is represented by a single bit within the
        value of this object.  If that bit has a value of '1'
        then that port is included in the set of ports; the port
        is not included if its bit has a value of '0'."
    SYNTAX      OCTET STRING

VlanIndex ::= TEXTUAL-CONVENTION
    STATUS      current
    DESCRIPTION
        "A value used to index per-VLAN tables: values of 0 and
        4095 are not permitted; if the value is between 1 and
        4094 inclusive, it represents an IEEE 802.1Q VLAN-ID with
        global scope within a given bridged domain (see VlanId
        textual convention).  If the value is greater than 4095
        then it represents a VLAN with scope local to the
        particular agent, i.e. one without a global VLAN-ID
        assigned to it. Such VLANs are outside the scope of
        IEEE 802.1Q but it is convenient to be able to manage them
        in the same way using this MIB."
    SYNTAX      Unsigned32

VlanId ::= TEXTUAL-CONVENTION
    STATUS      current
    DESCRIPTION
        "A 12-bit VLAN ID used in the VLAN Tag header."
    SYNTAX      INTEGER (1..4094)



--
-- dasanVlanBase
-- 

dsVlanBase OBJECT IDENTIFIER ::= { dsBridge 1 }

dsVlanVersionNumber OBJECT-TYPE
    SYNTAX      INTEGER {
                    version1(1)
                }
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The version number of IEEE 802.1Q that this device
        supports."
    REFERENCE
        "IEEE 802.1Q/D11 Section 12.10.1.1"
    ::= { dsVlanBase 1 }

dsVlanMaxVlanId OBJECT-TYPE
    SYNTAX      VlanId
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The maximum IEEE 802.1Q VLAN ID that this device
        supports."
    REFERENCE
        "IEEE 802.1Q/D11 Section 9.3.2.3"
    ::= { dsVlanBase 2 }

dsVlanMaxSupportedVlans OBJECT-TYPE
    SYNTAX      Unsigned32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The maximum number of VLANs that this
        device supports."
    ::= { dsVlanBase 3 }

dsVlanNumVlans OBJECT-TYPE
    SYNTAX      Unsigned32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The current number of VLANs that are
        configured in this device."
    ::= { dsVlanBase 4 }

dsVlanGvrpStatus OBJECT-TYPE
    SYNTAX      INTEGER {
                 enabled(1),
                 disabled(2)
                } 
    MAX-ACCESS  read-write
    STATUS      current
    DESCRIPTION
        "The administrative status requested by management for
        GVRP.  The value enabled(1) indicates that GVRP should
        be enabled on this device, on all ports for which it has
        not been specifically disabled.  When disabled(2), GVRP
        is disabled on all ports and all GVRP packets will be
        forwarded transparently.  This object affects all GVRP
        Applicant and Registrar state machines.  A transition
        from disabled(2) to enabled(1) will cause a reset of all
        GVRP state machines on all ports."
    ::= { dsVlanBase 5 }

--
-- dsVlanCurrentTable
--
dsVlanCurrentTable OBJECT-TYPE
    SYNTAX      SEQUENCE OF DsVlanCurrentEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "A table containing current configuration information
        for each VLAN currently configured into the device by
        (local or network) management, or dynamically created
        as a result of GVRP requests received."
    ::= { dsBridge 2 }

dsVlanCurrentEntry OBJECT-TYPE
    SYNTAX      DsVlanCurrentEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "Information for a VLAN configured into the device by
        (local or network) management, or dynamically created
        as a result of GVRP requests received."
    INDEX   { dsVlanIndex, dsVlanName}
    ::= { dsVlanCurrentTable 1 }


DsVlanCurrentEntry ::=
    SEQUENCE {
        dsVlanIndex
            VlanIndex,  
        dsVlanName
            OCTET STRING,
        dsVlanFdbId
            Unsigned32,
        dsVlanCurrentEgressPorts
            PortList,
        dsVlanCurrentUntaggedPorts
            PortList,
        dsVlanStatus
            INTEGER,
        dsVlanCreationTime
            TimeTicks,
        dsVlanCurrentPhysicalPorts
            PortList
    }

dsVlanIndex OBJECT-TYPE
    SYNTAX      VlanIndex
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The VLAN-ID or other identifier refering to this VLAN."
    ::= { dsVlanCurrentEntry 1 } 
    
dsVlanName OBJECT-TYPE
    SYNTAX      OCTET STRING
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The VLAN-NAME to this VLAN."
    ::= { dsVlanCurrentEntry 2 } 
    
dsVlanFdbId OBJECT-TYPE
    SYNTAX      Unsigned32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The Filtering Database used by this VLAN. This value is 
        allocated automatically by the device whenever the VLAN 
        is created: either dynamically by GVRP, or by management, 
        in dot1qVlanStaticTable.  Allocation of this value follows 
        the learning constraints defined for this VLAN in 
        dot1qLearningConstraintsTable."
    ::= { dsVlanCurrentEntry 3 }

dsVlanCurrentEgressPorts OBJECT-TYPE
    SYNTAX      PortList
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The set of ports which are transmitting traffic for
        this VLAN as either tagged or untagged frames."
    REFERENCE
        "IEEE 802.1Q/D11 Section 12.10.2.1"
    ::= { dsVlanCurrentEntry 4 }

dsVlanCurrentUntaggedPorts OBJECT-TYPE
    SYNTAX      PortList
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The set of ports which are transmitting traffic for
        this VLAN as untagged frames."
    REFERENCE
        "IEEE 802.1Q/D11 Section 12.10.2.1"
    ::= { dsVlanCurrentEntry 5 }

dsVlanStatus OBJECT-TYPE
    SYNTAX      INTEGER {
                    other(1),
                    permanent(2),
                    dynamicGvrp(3)
                }
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "This object indicates the status of this entry.
            other(1) - this entry is currently in use but the
                conditions under which it will remain so differ
                from the following values.
            permanent(2) - this entry, corresponding to an entry
                in dot1qVlanStaticTable, is currently in use and
                will remain so after the next reset of the
                device.  The port lists for this entry include
                ports from the equivalent dot1qVlanStaticTable
                entry and ports learnt dynamically.
            dynamicGvrp(3) - this entry is currently in use


                and will remain so until removed by GVRP.  There
                is no static entry for this VLAN and it will be
                removed when the last port leaves the VLAN."
    ::= { dsVlanCurrentEntry 6 }

dsVlanCreationTime OBJECT-TYPE
    SYNTAX      TimeTicks
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The value of sysUpTime when this VLAN was created."
    ::= { dsVlanCurrentEntry 7 }

dsVlanCurrentPhysicalPorts OBJECT-TYPE
    SYNTAX      PortList
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The set of ports which are physical."
    REFERENCE
        "."
    ::= { dsVlanCurrentEntry 8 }


--
-- dsTpFdbTable 
--
dsTpFdbTable OBJECT-TYPE
     SYNTAX  SEQUENCE OF DsTpFdbEntry
     MAX-ACCESS  not-accessible
     STATUS  current
     DESCRIPTION
         "A table that contains information about unicast entries
        for which the device has forwarding and/or filtering
        information.  This information is used by the
        transparent bridging function in determining how to
        propagate a received frame."
     ::= { dsTp 1 }

dsTpFdbEntry OBJECT-TYPE
     SYNTAX  DsTpFdbEntry
     MAX-ACCESS  not-accessible
     STATUS  current
     DESCRIPTION
         "Information about a specific unicast MAC address for
        which the device has some forwarding and/or filtering
        information."
     INDEX  { dsTpFdbFid, dsTpFdbVlanName, dsTpFdbAddress }
     ::= { dsTpFdbTable 1 }    
              
DsTpFdbEntry ::=
     SEQUENCE {   
       dsTpFdbFid
       INTEGER,
       dsTpFdbVlanName
       OCTET STRING,    
       dsTpFdbAddress
       MacAddress,
       dsTpFdbPort
       Integer32,
       dsTpFdbStatus
       INTEGER
     } 
 
dsTpFdbFid OBJECT-TYPE
     SYNTAX INTEGER
     MAX-ACCESS read-only
     STATUS current
     DESCRIPTION "The identity of this Filtering Database."
     ::= { dsTpFdbEntry 1 }
	 
dsTpFdbVlanName OBJECT-TYPE
     SYNTAX OCTET STRING
     MAX-ACCESS read-only
     STATUS current
     DESCRIPTION "The name of VLAN related to this Filtering Database."
     ::= { dsTpFdbEntry 2 }   
     
dsTpFdbAddress OBJECT-TYPE
     SYNTAX  OCTET STRING (SIZE (6))
     MAX-ACCESS  read-only
     STATUS  current
     DESCRIPTION
             "A unicast MAC address for which the bridge has
              forwarding and/or filtering information."
     REFERENCE
             "IEEE 802.1D-1990: Section 3.9.1, 3.9.2"
     ::= { dsTpFdbEntry 3 }
	 
dsTpFdbPort OBJECT-TYPE
     SYNTAX Integer32 (0..65535)
     MAX-ACCESS read-only
     STATUS current
     DESCRIPTION "Either the value '0', or the port number of the port on
        which a frame having a source address equal to the value
        of the corresponding instance of dsTpFdbAddress has
        been seen."
     ::= { dsTpFdbEntry 4 }

dsTpFdbStatus OBJECT-TYPE
     SYNTAX INTEGER {
	    other(1),
	    invalid(2),
	    learned(3),
	    self(4),
	    mgmt(5)
     }
     MAX-ACCESS read-only
     STATUS current
     DESCRIPTION "The status of this entry.  The meanings of the values
        are:
            other(1) - none of the following.
            invalid(2) - this entry is no longer valid (e.g., it
                was learned but has since aged out), but has not
                yet been flushed from the table.
            learned(3) - the value of the corresponding instance
                of dsTpFdbPort was learned and is being used.

            self(4) - the value of the corresponding instance of
                dsTpFdbAddress represents one of the device's
                addresses.  The corresponding instance of
                dsTpFdbPort indicates which of the device's
                ports has this address.
            mgmt(5) - the value of the corresponding instance of
                dsTpFdbAddress is also the value of an
                existing instance of dsStaticAddress."
     ::= { dsTpFdbEntry 5 }
         
         
--
-- dsStpBase
--

dsStpBase OBJECT IDENTIFIER ::= { dsBridge 4 }

--
-- dsStpTable
--                   

dsStpTable  OBJECT-TYPE
     SYNTAX  SEQUENCE OF DsStpEntry
     MAX-ACCESS  not-accessible
     STATUS  current
     DESCRIPTION
         "The table of STP supported this device."
     ::= { dsBridge 5 }

dsStpEntry OBJECT-TYPE
     SYNTAX  DsStpEntry
     MAX-ACCESS  not-accessible
     STATUS  current
     DESCRIPTION
         "The table of STP supported this device."
     INDEX  { dsStpIndex }
     ::= { dsStpTable 1 }    
              
DsStpEntry ::=
     SEQUENCE {
       dsStpIndex
       INTEGER,    
       dsStpVid
       INTEGER,
       dsStpProtocolSpecification
       INTEGER,
       dsStpPriority
       Integer32,  
       dsStpTimeSinceTopologyChange
       TimeTicks,
       dsStpTopChanges
       Counter,
       dsStpDesignatedRoot
       BridgeId,
       dsStpRootCost
       INTEGER,
       dsStpRootPort
       INTEGER,
       dsStpMaxAge
       Timeout,
       dsStpHelloTime
       Timeout,
       dsStpHoldTime
       INTEGER,
       dsStpForwardDelay
       Timeout,
       dsStpBridgeMaxAge
       Timeout,
       dsStpBridgeHelloTime
       Timeout,
       dsStpBridgeForwardDelay
       Timeout 
     } 

dsStpIndex OBJECT-TYPE
     SYNTAX INTEGER
     MAX-ACCESS read-only
     STATUS current
     DESCRIPTION "."
     ::= { dsStpEntry 1}  
	 
dsStpVid OBJECT-TYPE
     SYNTAX INTEGER
     MAX-ACCESS read-only
     STATUS current
     DESCRIPTION "."
     ::= { dsStpEntry 2}

dsStpProtocolSpecification OBJECT-TYPE
     SYNTAX  INTEGER {
             unknown(1),
             decLb100(2),
             ieee8021d(3)
             }
     MAX-ACCESS  read-only
     STATUS  current
     DESCRIPTION
             "An indication of what version of the Spanning
              Tree Protocol is being run.  The value
              'decLb100(2)' indicates the DEC LANbridge 100
              Spanning Tree protocol.  IEEE 802.1d
              implementations will return 'ieee8021d(3)'.  If
              future versions of the IEEE Spanning Tree Protocol
              are released that are incompatible with the
              current version a new value will be defined."
     ::= { dsStpEntry 3 }

dsStpPriority OBJECT-TYPE
     SYNTAX  Integer32 (0..65535)
     MAX-ACCESS  read-write
     STATUS  current
     DESCRIPTION
             "The value of the write-able portion of the Bridge
              ID, i.e., the first two octets of the (8 octet
              long) Bridge ID.  The other (last) 6 octets of the
              Bridge ID are given by the value of
             dot1dBaseBridgeAddress."
     REFERENCE
             "IEEE 802.1D-1990: Section 4.5.3.7"
     ::= { dsStpEntry 4 }

dsStpTimeSinceTopologyChange OBJECT-TYPE
     SYNTAX  TimeTicks
     MAX-ACCESS  read-only
     STATUS  current
     DESCRIPTION
             "The time (in hundredths of a second) since the
             last time a topology change was detected by the
             bridge entity."
     REFERENCE
             "IEEE 802.1D-1990: Section 6.8.1.1.3"
     ::= { dsStpEntry 5 }

dsStpTopChanges OBJECT-TYPE
     SYNTAX  Counter
     MAX-ACCESS  read-only
     STATUS  current
     DESCRIPTION
             "The total number of topology changes detected by
              this bridge since the management entity was last
              reset or initialized."
     REFERENCE
             "IEEE 802.1D-1990: Section 6.8.1.1.3"
     ::= { dsStpEntry 6 }

dsStpDesignatedRoot OBJECT-TYPE
     SYNTAX  BridgeId
     MAX-ACCESS  read-only
     STATUS  current
     DESCRIPTION
            "The bridge identifier of the root of the spanning
             tree as determined by the Spanning Tree Protocol
             as executed by this node.  This value is used as
             the Root Identifier parameter in all Configuration
             Bridge PDUs originated by this node."
     REFERENCE
            "IEEE 802.1D-1990: Section 4.5.3.1"
     ::= { dsStpEntry 7 }

dsStpRootCost OBJECT-TYPE
     SYNTAX  INTEGER
     MAX-ACCESS  read-only
     STATUS  current
     DESCRIPTION
            "The cost of the path to the root as seen from
             this bridge."
     REFERENCE
            "IEEE 802.1D-1990: Section 4.5.3.2"
     ::= { dsStpEntry 8 }

dsStpRootPort OBJECT-TYPE
     SYNTAX  INTEGER
     MAX-ACCESS  read-only
     STATUS  current
     DESCRIPTION
	     "The port number of the port which offers the
	     lowest cost path from this bridge to the root
	     bridge."
     REFERENCE
 	     "IEEE 802.1D-1990: Section 4.5.3.3"
     ::= { dsStpEntry 9 }

dsStpMaxAge OBJECT-TYPE
     SYNTAX  Timeout
     MAX-ACCESS  read-only
     STATUS  current
     DESCRIPTION
	      "The maximum age of Spanning Tree Protocol
	      information learned from the network on any port
	      before it is discarded, in units of hundredths of
	      a second.  This is the actual value that this
	      bridge is currently using."
     REFERENCE
	      "IEEE 802.1D-1990: Section 4.5.3.4"
     ::= { dsStpEntry 10 }

dsStpHelloTime OBJECT-TYPE
     SYNTAX  Timeout
     MAX-ACCESS  read-only
     STATUS  current
     DESCRIPTION
	      "The amount of time between the transmission of
	      Configuration bridge PDUs by this node on any port
	      when it is the root of the spanning tree or trying
	      to become so, in units of hundredths of a second.
	      This is the actual value that this bridge is
	      currently using."
     REFERENCE
	      "IEEE 802.1D-1990: Section 4.5.3.5"
     ::= { dsStpEntry 11 }

dsStpHoldTime OBJECT-TYPE
     SYNTAX  INTEGER
     MAX-ACCESS  read-only
     STATUS  current
     DESCRIPTION
	      "This time value determines the interval length
	      during which no more than two Configuration bridge
	      PDUs shall be transmitted by this node, in units
	      of hundredths of a second."
     REFERENCE
	      "IEEE 802.1D-1990: Section 4.5.3.14"
     ::= { dsStpEntry 12 }

dsStpForwardDelay OBJECT-TYPE
      SYNTAX  Timeout
      MAX-ACCESS  read-only
      STATUS  current
      DESCRIPTION
	      "This time value, measured in units of hundredths
	      of a second, controls how fast a port changes its
	      spanning state when moving towards the Forwarding
	      state.  The value determines how long the port
	      stays in each of the Listening and Learning
	      states, which precede the Forwarding state.  This
	      value is also used, when a topology change has
	      been detected and is underway, to age all dynamic
	      entries in the Forwarding Database.  [Note that
	      this value is the one that this bridge is
	      currently using, in contrast to
	      dot1dStpBridgeForwardDelay which is the value that
	      this bridge and all others would start using
	      if/when this bridge were to become the root.]"
      REFERENCE
	      "IEEE 802.1D-1990: Section 4.5.3.6"
      ::= { dsStpEntry 13 }

dsStpBridgeMaxAge OBJECT-TYPE
      SYNTAX  Timeout (600..4000)
      MAX-ACCESS  read-write
      STATUS  current
      DESCRIPTION
	      "The value that all bridges use for MaxAge when
	      this bridge is acting as the root.  Note that
	      802.1D-1990 specifies that the range for this
	      parameter is related to the value of
	      dot1dStpBridgeHelloTime. The granularity of this
	      timer is specified by 802.1D-1990 to be 1 second.
	      An agent may return a badValue error if a set is
	      attempted to a value which is not a whole number
	      of seconds."
      REFERENCE
	      "IEEE 802.1D-1990: Section 4.5.3.8"
      ::= { dsStpEntry 14 }

dsStpBridgeHelloTime OBJECT-TYPE
      SYNTAX  Timeout (100..1000)
      MAX-ACCESS  read-write
      STATUS  current
      DESCRIPTION
	      "The value that all bridges use for HelloTime when
	      this bridge is acting as the root.  The
	      granularity of this timer is specified by 802.1D-
	      1990 to be 1 second.  An agent may return a
	      badValue error if a set is attempted to a value
	      which is not a whole number of seconds."
      REFERENCE
	      "IEEE 802.1D-1990: Section 4.5.3.9"
      ::= { dsStpEntry 15 }

dsStpBridgeForwardDelay OBJECT-TYPE
      SYNTAX  Timeout (400..3000)
      MAX-ACCESS  read-write
      STATUS  current
      DESCRIPTION
	      "The value that all bridges use for ForwardDelay
	      when this bridge is acting as the root.  Note that
	      802.1D-1990 specifies that the range for this
	      parameter is related to the value of
	      dot1dStpBridgeMaxAge.  The granularity of this
	      timer is specified by 802.1D-1990 to be 1 second.
	      An agent may return a badValue error if a set is
	      attempted to a value which is not a whole number
	      of seconds."
      REFERENCE
	      "IEEE 802.1D-1990: Section 4.5.3.10"
      ::= { dsStpEntry 16 }

--
-- dsStpPortTable
--
dsStpPortTable  OBJECT-TYPE
     SYNTAX  SEQUENCE OF DsStpPortEntry
     MAX-ACCESS  not-accessible
     STATUS  current
     DESCRIPTION
         "The port table of STP supported this device."
     ::= { dsBridge 6 }

dsStpPortEntry OBJECT-TYPE
     SYNTAX  DsStpPortEntry
     MAX-ACCESS  not-accessible
     STATUS  current
     DESCRIPTION
         "The port table of STP supported this device."
     INDEX  { dsStpIndex, dsStpPort }
     ::= { dsStpPortTable 1 }    
              
DsStpPortEntry ::=
     SEQUENCE {  
       dsStpPort
       Integer32,
       dsStpPortPriority
       Integer32,  
       dsStpPortState
       INTEGER,
       dsStpPortEnable
       INTEGER,
       dsStpPortPathCost
       Integer32,
       dsStpPortDesignatedRoot
       BridgeId,
       dsStpPortDesignatedCost
       INTEGER,
       dsStpPortDesignatedBridge
       BridgeId,
       dsStpPortDesignatedPort
       OCTET STRING,
       dsStpPortForwardTransitions
       Counter
     } 

dsStpPort OBJECT-TYPE
      SYNTAX  Integer32 (1..65535)
      MAX-ACCESS  read-only
      STATUS  current
      DESCRIPTION
	  "The port number of the port for which this entry
	  contains Spanning Tree Protocol management
	  information."
      ::= { dsStpPortEntry 1 }

dsStpPortPriority OBJECT-TYPE
      SYNTAX  Integer32 (0..255)
      MAX-ACCESS  read-write
      STATUS  current
      DESCRIPTION
	      "The value of the priority field which is
	      contained in the first (in network byte order)
	      octet of the (2 octet long) Port ID.  The other
	      octet of the Port ID is given by the value of
	      dot1dStpPort."
      ::= { dsStpPortEntry 2 }

dsStpPortState OBJECT-TYPE
      SYNTAX  INTEGER {
		  disabled(1),
		  blocking(2),
		  listening(3),
		  learning(4),
		  forwarding(5),
		  broken(6)
	      }
      MAX-ACCESS  read-only
      STATUS  current
      DESCRIPTION
	      "The port's current state as defined by
	      application of the Spanning Tree Protocol.  This
	      state controls what action a port takes on
	      reception of a frame.  If the bridge has detected
	      a port that is malfunctioning it will place that
	      port into the broken(6) state.  For ports which
	      are disabled (see dsStpPortEnable), this object
	      will have a value of disabled(1)."
      ::= { dsStpPortEntry 3 }

dsStpPortEnable OBJECT-TYPE
      SYNTAX  INTEGER {
		  enabled(1),
		  disabled(2)
	      }
      MAX-ACCESS  read-write
      STATUS  current
      DESCRIPTION
	      "The enabled/disabled status of the port."
      ::= { dsStpPortEntry 4 }

dsStpPortPathCost OBJECT-TYPE
      SYNTAX  Integer32 (1..65535)
      MAX-ACCESS  read-write
      STATUS  current
      DESCRIPTION
	      "The contribution of this port to the path cost of
	      paths towards the spanning tree root which include
	      this port.  802.1D-1990 recommends that the
	      default value of this parameter be in inverse
	      proportion to the speed of the attached LAN."
      ::= { dsStpPortEntry 5 }

dsStpPortDesignatedRoot OBJECT-TYPE
      SYNTAX  BridgeId
      MAX-ACCESS  read-only
      STATUS  current
      DESCRIPTION
	      "The unique Bridge Identifier of the Bridge
	      recorded as the Root in the Configuration BPDUs
	      transmitted by the Designated Bridge for the
	      segment to which the port is attached."
      ::= { dsStpPortEntry 6 }

dsStpPortDesignatedCost OBJECT-TYPE
      SYNTAX  INTEGER
      MAX-ACCESS  read-only
      STATUS  current
      DESCRIPTION
	      "The path cost of the Designated Port of the
	      segment connected to this port.  This value is
	      compared to the Root Path Cost field in received
	      bridge PDUs."
      ::= { dsStpPortEntry 7 }

dsStpPortDesignatedBridge OBJECT-TYPE
      SYNTAX  BridgeId
      MAX-ACCESS  read-only
      STATUS  current
      DESCRIPTION
	      "The Bridge Identifier of the bridge which this
	  port considers to be the Designated Bridge for
	      this port's segment."
      ::= { dsStpPortEntry 8 }

dsStpPortDesignatedPort OBJECT-TYPE
      SYNTAX  OCTET STRING (SIZE (2))
      MAX-ACCESS  read-only
      STATUS  current
      DESCRIPTION
	      "The Port Identifier of the port on the Designated
	      Bridge for this port's segment."
      ::= { dsStpPortEntry 9 }

dsStpPortForwardTransitions OBJECT-TYPE
      SYNTAX  Counter
      MAX-ACCESS  read-only
      STATUS  current
      DESCRIPTION
	      "The number of times this port has transitioned
	      from the Learning state to the Forwarding state."
      ::= { dsStpPortEntry 10 }
END