BRIDGE-MIB DEFINITIONS ::= BEGIN

-- ---------------------------------------------------------- --
-- MIB for IEEE 802.1D devices
-- ---------------------------------------------------------- --
IMPORTS
   MODULE-IDENTITY, OBJECT-TYPE, NOTIFICATION-TYPE,
   Counter32, Integer32, TimeTicks, mib-2
	   FROM SNMPv2-SMI
   TEXTUAL-CONVENTION, MacAddress
	   FROM SNMPv2-TC
   MODULE-COMPLIANCE, OBJECT-GROUP, NOTIFICATION-GROUP
	   FROM SNMPv2-CONF
   InterfaceIndex FROM IF-MIB
   ;

dot1dBridge MODULE-IDENTITY
   LAST-UPDATED "200509190000Z"
   ORGANIZATION "IETF Bridge MIB Working Group"
   CONTACT-INFO
	   "Email: bridge-mib@ietf.org

				K.C. Norseth (Editor)
				L-3 Communications
		   Tel: +1 801-594-2809
		 Email: kenyon.c.norseth@L-3com.com
		Postal: 640 N. 2200 West.
				Salt Lake City, Utah 84116-0850

				Les Bell (Editor)
				3Com Europe Limited
		 Phone: +44 1442 438025
		 Email: elbell@ntlworld.com
		Postal: 3Com Centre, Boundary Way
				Hemel Hempstead
				Herts.  HP2 7YU
				UK

		Send comments to <bridge-mib@ietf.org>"
   DESCRIPTION
	   "The Bridge MIB module for managing devices that support
	   IEEE 802.1D.

	   Copyright (C) The Internet Society (2005).  This version of
	   this MIB module is part of RFC 4188; see the RFC itself for
	   full legal notices."
   REVISION     "200509190000Z"
   DESCRIPTION
		"Third revision, published as part of RFC 4188.

		The MIB module has been converted to SMIv2 format.
		Conformance statements have been added and some
		description and reference clauses have been updated.

		The object dot1dStpPortPathCost32 was added to
		support IEEE 802.1t and the permissible values of
		dot1dStpPriority and dot1dStpPortPriority have been
		clarified for bridges supporting IEEE 802.1t or
		IEEE 802.1w.

		The interpretation of dot1dStpTimeSinceTopologyChange
		has been clarified for bridges supporting the Rapid
		Spanning Tree Protocol (RSTP)."
   REVISION     "199307310000Z"
   DESCRIPTION
		"Second revision, published as part of RFC 1493."
   REVISION     "199112310000Z"
   DESCRIPTION
		"Initial revision, published as part of RFC 1286."
   ::= { mib-2 17 }


-- ---------------------------------------------------------- --
-- Textual Conventions
-- ---------------------------------------------------------- --

BridgeId ::= TEXTUAL-CONVENTION

   STATUS      current
   DESCRIPTION
	   "The Bridge-Identifier, as used in the Spanning Tree
	   Protocol, to uniquely identify a bridge.  Its first two
	   octets (in network byte order) contain a priority value,
	   and its last 6 octets contain the MAC address used to
	   refer to a bridge in a unique fashion (typically, the
	   numerically smallest MAC address of all ports on the
	   bridge)."
   SYNTAX      OCTET STRING (SIZE (8))

Timeout ::= TEXTUAL-CONVENTION
   DISPLAY-HINT "d"
   STATUS      current
   DESCRIPTION
	   "A Spanning Tree Protocol (STP) timer in units of 1/100
	   seconds.  Several objects in this MIB module represent
	   values of timers used by the Spanning Tree Protocol.
	   In this MIB, these timers have values in units of
	   hundredths of a second (i.e., 1/100 secs).

	   These timers, when stored in a Spanning Tree Protocol's
	   BPDU, are in units of 1/256 seconds.  Note, however, that
	   802.1D-1998 specifies a settable granularity of no more
	   than one second for these timers.  To avoid ambiguity,
	   a conversion algorithm is defined below for converting
	   between the different units, which ensures a timer's
	   value is not distorted by multiple conversions.

	   To convert a Timeout value into a value in units of
	   1/256 seconds, the following algorithm should be used:

		   b = floor( (n * 256) / 100)

	   where:
		   floor   =  quotient [ignore remainder]
		   n is the value in 1/100 second units
		   b is the value in 1/256 second units

	   To convert the value from 1/256 second units back to
	   1/100 seconds, the following algorithm should be used:

		   n = ceiling( (b * 100) / 256)

	   where:
		   ceiling = quotient [if remainder is 0], or
					 quotient + 1 [if remainder is nonzero]
		   n is the value in 1/100 second units

		   b is the value in 1/256 second units

	   Note: it is important that the arithmetic operations are
	   done in the order specified (i.e., multiply first,
	   divide second)."
   SYNTAX      Integer32

-- ---------------------------------------------------------- --
-- subtrees in the Bridge MIB
-- ---------------------------------------------------------- --

dot1dNotifications  OBJECT IDENTIFIER ::= { dot1dBridge 0 }

dot1dBase           OBJECT IDENTIFIER ::= { dot1dBridge 1 }
dot1dStp            OBJECT IDENTIFIER ::= { dot1dBridge 2 }

dot1dSr             OBJECT IDENTIFIER ::= { dot1dBridge 3 }
-- documented in RFC 1525

dot1dTp             OBJECT IDENTIFIER ::= { dot1dBridge 4 }
dot1dStatic         OBJECT IDENTIFIER ::= { dot1dBridge 5 }

-- Subtrees used by Bridge MIB Extensions:
--      pBridgeMIB  MODULE-IDENTITY   ::= { dot1dBridge 6 }
--      qBridgeMIB  MODULE-IDENTITY   ::= { dot1dBridge 7 }
-- Note that the practice of registering related MIB modules
-- below dot1dBridge has been discouraged since there is no
-- robust mechanism to track such registrations.

dot1dConformance    OBJECT IDENTIFIER ::= { dot1dBridge 8 }

-- ---------------------------------------------------------- --
-- the dot1dBase subtree
-- ---------------------------------------------------------- --
-- Implementation of the dot1dBase subtree is mandatory for all
-- bridges.
-- ---------------------------------------------------------- --

dot1dBaseBridgeAddress OBJECT-TYPE

   SYNTAX      MacAddress
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
	   "The MAC address used by this bridge when it must be
	   referred to in a unique fashion.  It is recommended
	   that this be the numerically smallest MAC address of
	   all ports that belong to this bridge.  However, it is only

	   required to be unique.  When concatenated with
	   dot1dStpPriority, a unique BridgeIdentifier is formed,
	   which is used in the Spanning Tree Protocol."
   REFERENCE
	   "IEEE 802.1D-1998: clauses 14.4.1.1.3 and 7.12.5"
   ::= { dot1dBase 1 }

dot1dBaseNumPorts OBJECT-TYPE
   SYNTAX      Integer32
   UNITS       "ports"
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
	   "The number of ports controlled by this bridging
	   entity."
   REFERENCE
	   "IEEE 802.1D-1998: clause 14.4.1.1.3"
   ::= { dot1dBase 2 }

dot1dBaseType OBJECT-TYPE
   SYNTAX      INTEGER {
				   unknown(1),
				   transparent-only(2),
				   sourceroute-only(3),
				   srt(4)
			   }
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
	   "Indicates what type of bridging this bridge can
	   perform.  If a bridge is actually performing a
	   certain type of bridging, this will be indicated by
	   entries in the port table for the given type."
   ::= { dot1dBase 3 }

-- ---------------------------------------------------------- --
-- The Generic Bridge Port Table
-- ---------------------------------------------------------- --
dot1dBasePortTable OBJECT-TYPE
   SYNTAX      SEQUENCE OF Dot1dBasePortEntry
   MAX-ACCESS  not-accessible
   STATUS      current
   DESCRIPTION
	   "A table that contains generic information about every
	   port that is associated with this bridge.  Transparent,
	   source-route, and srt ports are included."
   ::= { dot1dBase 4 }

dot1dBasePortEntry OBJECT-TYPE
   SYNTAX      Dot1dBasePortEntry
   MAX-ACCESS  not-accessible
   STATUS      current

   DESCRIPTION
	   "A list of information for each port of the bridge."
   REFERENCE
	   "IEEE 802.1D-1998: clause 14.4.2, 14.6.1"
   INDEX  { dot1dBasePort }
   ::= { dot1dBasePortTable 1 }

Dot1dBasePortEntry ::=
   SEQUENCE {
	   dot1dBasePort
		   Integer32,
	   dot1dBasePortIfIndex
		   InterfaceIndex,
	   dot1dBasePortCircuit
		   OBJECT IDENTIFIER,
	   dot1dBasePortDelayExceededDiscards
		   Counter32,
	   dot1dBasePortMtuExceededDiscards
		   Counter32
   }

dot1dBasePort OBJECT-TYPE
   SYNTAX      Integer32 (1..65535)
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
	   "The port number of the port for which this entry
	   contains bridge management information."
   ::= { dot1dBasePortEntry 1 }

dot1dBasePortIfIndex OBJECT-TYPE
   SYNTAX      InterfaceIndex
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
	   "The value of the instance of the ifIndex object,
	   defined in IF-MIB, for the interface corresponding
	   to this port."
   ::= { dot1dBasePortEntry 2 }

dot1dBasePortCircuit OBJECT-TYPE
   SYNTAX      OBJECT IDENTIFIER
   MAX-ACCESS  read-only

   STATUS      current
   DESCRIPTION
	   "For a port that (potentially) has the same value of
	   dot1dBasePortIfIndex as another port on the same bridge.
	   This object contains the name of an object instance
	   unique to this port.  For example, in the case where
	   multiple ports correspond one-to-one with multiple X.25
	   virtual circuits, this value might identify an (e.g.,
	   the first) object instance associated with the X.25
	   virtual circuit corresponding to this port.

	   For a port which has a unique value of
	   dot1dBasePortIfIndex, this object can have the value
	   { 0 0 }."
   ::= { dot1dBasePortEntry 3 }

dot1dBasePortDelayExceededDiscards OBJECT-TYPE
   SYNTAX      Counter32
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
	   "The number of frames discarded by this port due
	   to excessive transit delay through the bridge.  It
	   is incremented by both transparent and source
	   route bridges."
   REFERENCE
	   "IEEE 802.1D-1998: clause 14.6.1.1.3"
   ::= { dot1dBasePortEntry 4 }

dot1dBasePortMtuExceededDiscards OBJECT-TYPE
   SYNTAX      Counter32
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
	   "The number of frames discarded by this port due
	   to an excessive size.  It is incremented by both
	   transparent and source route bridges."
   REFERENCE
	   "IEEE 802.1D-1998: clause 14.6.1.1.3"
   ::= { dot1dBasePortEntry 5 }

-- ---------------------------------------------------------- --
-- the dot1dStp subtree
-- ---------------------------------------------------------- --
-- Implementation of the dot1dStp subtree is optional.  It is
-- implemented by those bridges that support the Spanning Tree
-- Protocol.
-- ---------------------------------------------------------- --

dot1dStpProtocolSpecification 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
	   that are incompatible with the current version
	   are released a new value will be defined."
   ::= { dot1dStp 1 }

dot1dStpPriority 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.
	   On bridges supporting IEEE 802.1t or IEEE 802.1w,
	   permissible values are 0-61440, in steps of 4096."
   REFERENCE
	   "IEEE 802.1D-1998 clause 8.10.2, Table 8-4,
	   IEEE 802.1t clause 8.10.2, Table 8-4, clause 14.3."
   ::= { dot1dStp 2 }

dot1dStpTimeSinceTopologyChange OBJECT-TYPE
   SYNTAX      TimeTicks
   UNITS       "centi-seconds"
   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.
	   For RSTP, this reports the time since the tcWhile
	   timer for any port on this Bridge was nonzero."
   REFERENCE
	   "IEEE 802.1D-1998 clause 14.8.1.1.,
	   IEEE 802.1w clause 14.8.1.1."

   ::= { dot1dStp 3 }

dot1dStpTopChanges OBJECT-TYPE
   SYNTAX      Counter32
   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-1998 clause 14.8.1.1."
   ::= { dot1dStp 4 }

dot1dStpDesignatedRoot 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-1998: clause 8.5.3.1"
   ::= { dot1dStp 5 }

dot1dStpRootCost OBJECT-TYPE
   SYNTAX      Integer32
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
	   "The cost of the path to the root as seen from
	   this bridge."
   REFERENCE
	   "IEEE 802.1D-1998: clause 8.5.3.2"
   ::= { dot1dStp 6 }

dot1dStpRootPort OBJECT-TYPE
   SYNTAX      Integer32
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
	   "The port number of the port that offers the lowest
	   cost path from this bridge to the root bridge."
   REFERENCE
	   "IEEE 802.1D-1998: clause 8.5.3.3"

   ::= { dot1dStp 7 }

dot1dStpMaxAge OBJECT-TYPE
   SYNTAX      Timeout
   UNITS       "centi-seconds"
   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-1998: clause 8.5.3.4"
   ::= { dot1dStp 8 }

dot1dStpHelloTime OBJECT-TYPE
   SYNTAX      Timeout
   UNITS       "centi-seconds"
   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-1998: clause 8.5.3.5"
   ::= { dot1dStp 9 }

dot1dStpHoldTime OBJECT-TYPE
   SYNTAX      Integer32
   UNITS       "centi-seconds"
   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-1998: clause 8.5.3.14"
   ::= { dot1dStp 10 }

dot1dStpForwardDelay OBJECT-TYPE
   SYNTAX      Timeout
   UNITS       "centi-seconds"

   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-1998: clause 8.5.3.6"
   ::= { dot1dStp 11 }

dot1dStpBridgeMaxAge OBJECT-TYPE
   SYNTAX      Timeout (600..4000)
   UNITS       "centi-seconds"
   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-1998
	   specifies that the range for this parameter is related
	   to the value of dot1dStpBridgeHelloTime.  The
	   granularity of this timer is specified by 802.1D-1998 to
	   be 1 second.  An agent may return a badValue error if a
	   set is attempted to a value that is not a whole number
	   of seconds."
   REFERENCE
	   "IEEE 802.1D-1998: clause 8.5.3.8"
   ::= { dot1dStp 12 }

dot1dStpBridgeHelloTime OBJECT-TYPE
   SYNTAX      Timeout (100..1000)
   UNITS       "centi-seconds"
   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-1998 to be 1 second.  An
	   agent may return a badValue error if a set is attempted

	   to a value that is not a whole number of seconds."
   REFERENCE
	   "IEEE 802.1D-1998: clause 8.5.3.9"
   ::= { dot1dStp 13 }

dot1dStpBridgeForwardDelay OBJECT-TYPE
   SYNTAX      Timeout (400..3000)
   UNITS       "centi-seconds"
   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-1998 specifies that the range for this parameter
	   is related to the value of dot1dStpBridgeMaxAge.  The
	   granularity of this timer is specified by 802.1D-1998 to
	   be 1 second.  An agent may return a badValue error if a
	   set is attempted to a value that is not a whole number
	   of seconds."
   REFERENCE
	   "IEEE 802.1D-1998: clause 8.5.3.10"
   ::= { dot1dStp 14 }

-- ---------------------------------------------------------- --
-- The Spanning Tree Port Table
-- ---------------------------------------------------------- --

dot1dStpPortTable OBJECT-TYPE
   SYNTAX      SEQUENCE OF Dot1dStpPortEntry
   MAX-ACCESS  not-accessible
   STATUS      current
   DESCRIPTION
	   "A table that contains port-specific information
	   for the Spanning Tree Protocol."
   ::= { dot1dStp 15 }

dot1dStpPortEntry OBJECT-TYPE
   SYNTAX      Dot1dStpPortEntry
   MAX-ACCESS  not-accessible
   STATUS      current
   DESCRIPTION
	   "A list of information maintained by every port about
	   the Spanning Tree Protocol state for that port."
   INDEX   { dot1dStpPort }
   ::= { dot1dStpPortTable 1 }

Dot1dStpPortEntry ::=
   SEQUENCE {

	   dot1dStpPort
		   Integer32,
	   dot1dStpPortPriority
		   Integer32,
	   dot1dStpPortState
		   INTEGER,
	   dot1dStpPortEnable
		   INTEGER,
	   dot1dStpPortPathCost
		   Integer32,
	   dot1dStpPortDesignatedRoot
		   BridgeId,
	   dot1dStpPortDesignatedCost
		   Integer32,
	   dot1dStpPortDesignatedBridge
		   BridgeId,
	   dot1dStpPortDesignatedPort
		   OCTET STRING,
	   dot1dStpPortForwardTransitions
		   Counter32,
	   dot1dStpPortPathCost32
		   Integer32
   }

dot1dStpPort 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."
   REFERENCE
	   "IEEE 802.1D-1998: clause 14.8.2.1.2"
   ::= { dot1dStpPortEntry 1 }

dot1dStpPortPriority OBJECT-TYPE
   SYNTAX      Integer32 (0..255)
   MAX-ACCESS  read-write
   STATUS      current
   DESCRIPTION
	   "The value of the priority field that 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.
	   On bridges supporting IEEE 802.1t or IEEE 802.1w,
	   permissible values are 0-240, in steps of 16."
   REFERENCE
	   "IEEE 802.1D-1998 clause 8.10.2, Table 8-4,

	   IEEE 802.1t clause 8.10.2, Table 8-4, clause 14.3."
   ::= { dot1dStpPortEntry 2 }

dot1dStpPortState 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 that are disabled (see dot1dStpPortEnable), this
	   object will have a value of disabled(1)."
   REFERENCE
	   "IEEE 802.1D-1998: clause 8.5.5.2"
   ::= { dot1dStpPortEntry 3 }

dot1dStpPortEnable OBJECT-TYPE
   SYNTAX      INTEGER {
				   enabled(1),
				   disabled(2)
			   }
   MAX-ACCESS  read-write
   STATUS      current
   DESCRIPTION
	   "The enabled/disabled status of the port."
   REFERENCE
	   "IEEE 802.1D-1998: clause 8.5.5.2"
   ::= { dot1dStpPortEntry 4 }

dot1dStpPortPathCost 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-1998 recommends that the default
	   value of this parameter be in inverse proportion to

	   the speed of the attached LAN.

	   New implementations should support dot1dStpPortPathCost32.
	   If the port path costs exceeds the maximum value of this
	   object then this object should report the maximum value,
	   namely 65535.  Applications should try to read the
	   dot1dStpPortPathCost32 object if this object reports
	   the maximum value."
   REFERENCE "IEEE 802.1D-1998: clause 8.5.5.3"
	   ::= { dot1dStpPortEntry 5 }

dot1dStpPortDesignatedRoot 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."
   REFERENCE
	   "IEEE 802.1D-1998: clause 8.5.5.4"
   ::= { dot1dStpPortEntry 6 }

dot1dStpPortDesignatedCost OBJECT-TYPE
   SYNTAX      Integer32
   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."
   REFERENCE
	   "IEEE 802.1D-1998: clause 8.5.5.5"
   ::= { dot1dStpPortEntry 7 }

dot1dStpPortDesignatedBridge OBJECT-TYPE
   SYNTAX      BridgeId
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
	   "The Bridge Identifier of the bridge that this
	   port considers to be the Designated Bridge for
	   this port's segment."
   REFERENCE
	   "IEEE 802.1D-1998: clause 8.5.5.6"
   ::= { dot1dStpPortEntry 8 }

dot1dStpPortDesignatedPort 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."
   REFERENCE
	   "IEEE 802.1D-1998: clause 8.5.5.7"
   ::= { dot1dStpPortEntry 9 }

dot1dStpPortForwardTransitions OBJECT-TYPE
   SYNTAX      Counter32
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
	   "The number of times this port has transitioned
	   from the Learning state to the Forwarding state."
   ::= { dot1dStpPortEntry 10 }

dot1dStpPortPathCost32 OBJECT-TYPE
   SYNTAX      Integer32 (1..200000000)
   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-1998 recommends that the default
	   value of this parameter be in inverse proportion to
	   the speed of the attached LAN.

	   This object replaces dot1dStpPortPathCost to support
	   IEEE 802.1t."
   REFERENCE
	   "IEEE 802.1t clause 8.10.2, Table 8-5."
   ::= { dot1dStpPortEntry 11 }

-- ---------------------------------------------------------- --
-- the dot1dTp subtree
-- ---------------------------------------------------------- --
-- Implementation of the dot1dTp subtree is optional.  It is
-- implemented by those bridges that support the transparent
-- bridging mode.  A transparent or SRT bridge will implement
-- this subtree.
-- ---------------------------------------------------------- --

dot1dTpLearnedEntryDiscards OBJECT-TYPE
   SYNTAX      Counter32

   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
	   "The total number of Forwarding Database entries that
	   have been or would have been learned, but have been
	   discarded due to a lack of storage space in the
	   Forwarding Database.  If this counter is increasing, it
	   indicates that the Forwarding Database is regularly
	   becoming full (a condition that has unpleasant
	   performance effects on the subnetwork).  If this counter
	   has a significant value but is not presently increasing,
	   it indicates that the problem has been occurring but is
	   not persistent."
   REFERENCE
	   "IEEE 802.1D-1998: clause 14.7.1.1.3"
   ::= { dot1dTp 1 }

dot1dTpAgingTime OBJECT-TYPE
   SYNTAX      Integer32 (10..1000000)
   UNITS       "seconds"
   MAX-ACCESS  read-write
   STATUS      current
   DESCRIPTION
	   "The timeout period in seconds for aging out
	   dynamically-learned forwarding information.
	   802.1D-1998 recommends a default of 300 seconds."
   REFERENCE
	   "IEEE 802.1D-1998: clause 14.7.1.1.3"
   ::= { dot1dTp 2 }


-- ---------------------------------------------------------- --
--  The Forwarding Database for Transparent Bridges
-- ---------------------------------------------------------- --

dot1dTpFdbTable OBJECT-TYPE
   SYNTAX      SEQUENCE OF Dot1dTpFdbEntry
   MAX-ACCESS  not-accessible
   STATUS      current
   DESCRIPTION
	   "A table that contains information about unicast
	   entries for which the bridge has forwarding and/or
	   filtering information.  This information is used
	   by the transparent bridging function in
	   determining how to propagate a received frame."
   ::= { dot1dTp 3 }

dot1dTpFdbEntry OBJECT-TYPE

   SYNTAX      Dot1dTpFdbEntry
   MAX-ACCESS  not-accessible
   STATUS      current
   DESCRIPTION
	   "Information about a specific unicast MAC address
	   for which the bridge has some forwarding and/or
	   filtering information."
   INDEX   { dot1dTpFdbAddress }
   ::= { dot1dTpFdbTable 1 }

Dot1dTpFdbEntry ::=
   SEQUENCE {
	   dot1dTpFdbAddress
		   MacAddress,
	   dot1dTpFdbPort
		   Integer32,
	   dot1dTpFdbStatus
		   INTEGER
   }

dot1dTpFdbAddress OBJECT-TYPE
   SYNTAX      MacAddress
   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-1998: clause 7.9.1, 7.9.2"
   ::= { dot1dTpFdbEntry 1 }

dot1dTpFdbPort OBJECT-TYPE
   SYNTAX      Integer32
   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 dot1dTpFdbAddress has
	   been seen.  A value of '0' indicates that the port
	   number has not been learned, but that the bridge does
	   have some forwarding/filtering information about this
	   address (e.g., in the dot1dStaticTable).  Implementors
	   are encouraged to assign the port value to this object
	   whenever it is learned, even for addresses for which the
	   corresponding value of dot1dTpFdbStatus is not
	   learned(3)."
   ::= { dot1dTpFdbEntry 2 }

dot1dTpFdbStatus 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.  This would
			   include the case where some other MIB object
			   (not the corresponding instance of
			   dot1dTpFdbPort, nor an entry in the
			   dot1dStaticTable) is being used to determine if
			   and how frames addressed to the value of the
			   corresponding instance of dot1dTpFdbAddress are
			   being forwarded.
		   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 dot1dTpFdbPort was learned, and is being
			   used.
		   self(4) - the value of the corresponding instance of
			   dot1dTpFdbAddress represents one of the bridge's
			   addresses.  The corresponding instance of
			   dot1dTpFdbPort indicates which of the bridge's
			   ports has this address.
		   mgmt(5) - the value of the corresponding instance of
			   dot1dTpFdbAddress is also the value of an
			   existing instance of dot1dStaticAddress."
   ::= { dot1dTpFdbEntry 3 }

-- ---------------------------------------------------------- --
--  Port Table for Transparent Bridges
-- ---------------------------------------------------------- --

dot1dTpPortTable OBJECT-TYPE
   SYNTAX      SEQUENCE OF Dot1dTpPortEntry
   MAX-ACCESS  not-accessible
   STATUS      current
   DESCRIPTION
	   "A table that contains information about every port that
	   is associated with this transparent bridge."

   ::= { dot1dTp 4 }

dot1dTpPortEntry OBJECT-TYPE
   SYNTAX      Dot1dTpPortEntry
   MAX-ACCESS  not-accessible
   STATUS      current
   DESCRIPTION
	   "A list of information for each port of a transparent
	   bridge."
   INDEX   { dot1dTpPort }
   ::= { dot1dTpPortTable 1 }

Dot1dTpPortEntry ::=
   SEQUENCE {
	   dot1dTpPort
		   Integer32,
	   dot1dTpPortMaxInfo
		   Integer32,
	   dot1dTpPortInFrames
		   Counter32,
	   dot1dTpPortOutFrames
		   Counter32,
	   dot1dTpPortInDiscards
		   Counter32
   }

dot1dTpPort OBJECT-TYPE
   SYNTAX      Integer32 (1..65535)
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
	   "The port number of the port for which this entry
	   contains Transparent bridging management information."
   ::= { dot1dTpPortEntry 1 }

-- It would be nice if we could use ifMtu as the size of the
-- largest INFO field, but we can't because ifMtu is defined
-- to be the size that the (inter-)network layer can use, which
-- can differ from the MAC layer (especially if several layers
-- of encapsulation are used).

dot1dTpPortMaxInfo OBJECT-TYPE
   SYNTAX      Integer32
   UNITS       "bytes"
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
	   "The maximum size of the INFO (non-MAC) field that

	   this port will receive or transmit."
   ::= { dot1dTpPortEntry 2 }

dot1dTpPortInFrames OBJECT-TYPE
   SYNTAX      Counter32
   UNITS       "frames"
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
	   "The number of frames that have been received by this
	   port from its segment.  Note that a frame received on the
	   interface corresponding to this port is only counted by
	   this object if and only if it is for a protocol being
	   processed by the local bridging function, including
	   bridge management frames."
   REFERENCE
	   "IEEE 802.1D-1998: clause 14.6.1.1.3"
   ::= { dot1dTpPortEntry 3 }

dot1dTpPortOutFrames OBJECT-TYPE
   SYNTAX      Counter32
   UNITS       "frames"
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
	   "The number of frames that have been transmitted by this
	   port to its segment.  Note that a frame transmitted on
	   the interface corresponding to this port is only counted
	   by this object if and only if it is for a protocol being
	   processed by the local bridging function, including
	   bridge management frames."
   REFERENCE
	   "IEEE 802.1D-1998: clause 14.6.1.1.3"
   ::= { dot1dTpPortEntry 4 }

dot1dTpPortInDiscards OBJECT-TYPE
   SYNTAX      Counter32
   UNITS       "frames"
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
	   "Count of received valid frames that were discarded
	   (i.e., filtered) by the Forwarding Process."
   REFERENCE
	   "IEEE 802.1D-1998: clause 14.6.1.1.3"
   ::= { dot1dTpPortEntry 5 }

-- ---------------------------------------------------------- --

-- The Static (Destination-Address Filtering) Database
-- ---------------------------------------------------------- --
-- Implementation of this subtree is optional.
-- ---------------------------------------------------------- --

dot1dStaticTable OBJECT-TYPE
   SYNTAX      SEQUENCE OF Dot1dStaticEntry
   MAX-ACCESS  not-accessible
   STATUS      current
   DESCRIPTION
	   "A table containing filtering information configured
	   into the bridge by (local or network) management
	   specifying the set of ports to which frames received
	   from specific ports and containing specific destination
	   addresses are allowed to be forwarded.  The value of
	   zero in this table, as the port number from which frames
	   with a specific destination address are received, is
	   used to specify all ports for which there is no specific
	   entry in this table for that particular destination
	   address.  Entries are valid for unicast and for
	   group/broadcast addresses."
   REFERENCE
	   "IEEE 802.1D-1998: clause 14.7.2"
   ::= { dot1dStatic 1 }

dot1dStaticEntry OBJECT-TYPE
   SYNTAX      Dot1dStaticEntry
   MAX-ACCESS  not-accessible
   STATUS      current
   DESCRIPTION
	   "Filtering information configured into the bridge by
	   (local or network) management specifying the set of
	   ports to which frames received from a specific port and
	   containing a specific destination address are allowed to
	   be forwarded."
   REFERENCE
	   "IEEE 802.1D-1998: clause 14.7.2"
   INDEX   { dot1dStaticAddress, dot1dStaticReceivePort }
   ::= { dot1dStaticTable 1 }

Dot1dStaticEntry ::=
   SEQUENCE {
	   dot1dStaticAddress       MacAddress,
	   dot1dStaticReceivePort   Integer32,
	   dot1dStaticAllowedToGoTo OCTET STRING,
	   dot1dStaticStatus        INTEGER
   }

dot1dStaticAddress OBJECT-TYPE
   SYNTAX      MacAddress
   MAX-ACCESS  read-create
   STATUS      current
   DESCRIPTION
	   "The destination MAC address in a frame to which this
	   entry's filtering information applies.  This object can
	   take the value of a unicast address, a group address, or
	   the broadcast address."
   REFERENCE
	   "IEEE 802.1D-1998: clause 7.9.1, 7.9.2"
   ::= { dot1dStaticEntry 1 }

dot1dStaticReceivePort OBJECT-TYPE
   SYNTAX      Integer32 (0..65535)
   MAX-ACCESS  read-create
   STATUS      current
   DESCRIPTION
	   "Either the value '0', or the port number of the port
	   from which a frame must be received in order for this
	   entry's filtering information to apply.  A value of zero
	   indicates that this entry applies on all ports of the
	   bridge for which there is no other applicable entry."
   ::= { dot1dStaticEntry 2 }

dot1dStaticAllowedToGoTo OBJECT-TYPE
   SYNTAX      OCTET STRING (SIZE (0..512))
   MAX-ACCESS  read-create
   STATUS      current
   DESCRIPTION
	   "The set of ports to which frames received from a
	   specific port and destined for a specific MAC address,
	   are allowed to be forwarded.  Each octet within the
	   value of this object 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'.  (Note
	   that the setting of the bit corresponding to the port
	   from which a frame is received is irrelevant.)  The
	   default value of this object is a string of ones of
	   appropriate length.

	   The value of this object may exceed the required minimum
	   maximum message size of some SNMP transport (484 bytes,
	   in the case of SNMP over UDP, see RFC 3417, section 3.2).
	   SNMP engines on bridges supporting a large number of
	   ports must support appropriate maximum message sizes."
   ::= { dot1dStaticEntry 3 }

dot1dStaticStatus OBJECT-TYPE
   SYNTAX      INTEGER {
				   other(1),
				   invalid(2),
				   permanent(3),
				   deleteOnReset(4),
				   deleteOnTimeout(5)
			   }
   MAX-ACCESS  read-create
   STATUS      current
   DESCRIPTION
	   "This object indicates the status of this entry.
	   The default value is permanent(3).
		   other(1) - this entry is currently in use but the
			   conditions under which it will remain so are
			   different from each of the following values.
		   invalid(2) - writing this value to the object
			   removes the corresponding entry.
		   permanent(3) - this entry is currently in use and
			   will remain so after the next reset of the
			   bridge.
		   deleteOnReset(4) - this entry is currently in use
			   and will remain so until the next reset of the
			   bridge.
		   deleteOnTimeout(5) - this entry is currently in use
			   and will remain so until it is aged out."
   ::= { dot1dStaticEntry 4 }

-- ---------------------------------------------------------- --
-- Notifications for use by Bridges
-- ---------------------------------------------------------- --
-- Notifications for the Spanning Tree Protocol
-- ---------------------------------------------------------- --

newRoot NOTIFICATION-TYPE
   -- OBJECTS     { }
   STATUS      current
   DESCRIPTION
	   "The newRoot trap indicates that the sending agent has
	   become the new root of the Spanning Tree; the trap is
	   sent by a bridge soon after its election as the new

	   root, e.g., upon expiration of the Topology Change Timer,
	   immediately subsequent to its election.  Implementation
	   of this trap is optional."
   ::= { dot1dNotifications 1 }

topologyChange NOTIFICATION-TYPE
   -- OBJECTS     { }
   STATUS      current
   DESCRIPTION
	   "A topologyChange trap is sent by a bridge when any of
	   its configured ports transitions from the Learning state
	   to the Forwarding state, or from the Forwarding state to
	   the Blocking state.  The trap is not sent if a newRoot
	   trap is sent for the same transition.  Implementation of
	   this trap is optional."
   ::= { dot1dNotifications 2 }

-- ---------------------------------------------------------- --
-- IEEE 802.1D MIB - Conformance Information
-- ---------------------------------------------------------- --

dot1dGroups         OBJECT IDENTIFIER ::= { dot1dConformance 1 }
dot1dCompliances    OBJECT IDENTIFIER ::= { dot1dConformance 2 }

-- ---------------------------------------------------------- --
-- units of conformance
-- ---------------------------------------------------------- --

-- ---------------------------------------------------------- --
-- the dot1dBase group
-- ---------------------------------------------------------- --

dot1dBaseBridgeGroup OBJECT-GROUP
   OBJECTS {
	   dot1dBaseBridgeAddress,
	   dot1dBaseNumPorts,
	   dot1dBaseType
   }
   STATUS      current
   DESCRIPTION
	   "Bridge level information for this device."
   ::= { dot1dGroups 1 }

dot1dBasePortGroup OBJECT-GROUP
   OBJECTS {
	   dot1dBasePort,
	   dot1dBasePortIfIndex,
	   dot1dBasePortCircuit,

	   dot1dBasePortDelayExceededDiscards,
	   dot1dBasePortMtuExceededDiscards
   }
   STATUS      current
   DESCRIPTION
	   "Information for each port on this device."
   ::= { dot1dGroups 2 }

-- ---------------------------------------------------------- --
-- the dot1dStp group
-- ---------------------------------------------------------- --

dot1dStpBridgeGroup OBJECT-GROUP
   OBJECTS {
	   dot1dStpProtocolSpecification,
	   dot1dStpPriority,
	   dot1dStpTimeSinceTopologyChange,
	   dot1dStpTopChanges,
	   dot1dStpDesignatedRoot,
	   dot1dStpRootCost,
	   dot1dStpRootPort,
	   dot1dStpMaxAge,
	   dot1dStpHelloTime,
	   dot1dStpHoldTime,
	   dot1dStpForwardDelay,
	   dot1dStpBridgeMaxAge,
	   dot1dStpBridgeHelloTime,
	   dot1dStpBridgeForwardDelay
   }
   STATUS      current
   DESCRIPTION
	   "Bridge level Spanning Tree data for this device."
   ::= { dot1dGroups 3 }

dot1dStpPortGroup OBJECT-GROUP
   OBJECTS {
	   dot1dStpPort,
	   dot1dStpPortPriority,
	   dot1dStpPortState,
	   dot1dStpPortEnable,
	   dot1dStpPortPathCost,
	   dot1dStpPortDesignatedRoot,
	   dot1dStpPortDesignatedCost,
	   dot1dStpPortDesignatedBridge,
	   dot1dStpPortDesignatedPort,
	   dot1dStpPortForwardTransitions
   }
   STATUS      current

   DESCRIPTION
	   "Spanning Tree data for each port on this device."
   ::= { dot1dGroups 4 }

dot1dStpPortGroup2 OBJECT-GROUP
   OBJECTS {
	   dot1dStpPort,
	   dot1dStpPortPriority,
	   dot1dStpPortState,
	   dot1dStpPortEnable,
	   dot1dStpPortDesignatedRoot,
	   dot1dStpPortDesignatedCost,
	   dot1dStpPortDesignatedBridge,
	   dot1dStpPortDesignatedPort,
	   dot1dStpPortForwardTransitions,
	   dot1dStpPortPathCost32
   }
   STATUS      current
   DESCRIPTION
	   "Spanning Tree data for each port on this device."
   ::= { dot1dGroups 5 }

dot1dStpPortGroup3 OBJECT-GROUP
   OBJECTS {
	   dot1dStpPortPathCost32
   }
   STATUS      current
   DESCRIPTION
	   "Spanning Tree data for devices supporting 32-bit
		path costs."
   ::= { dot1dGroups 6 }

-- ---------------------------------------------------------- --
-- the dot1dTp group
-- ---------------------------------------------------------- --

dot1dTpBridgeGroup OBJECT-GROUP
   OBJECTS {
	   dot1dTpLearnedEntryDiscards,
	   dot1dTpAgingTime
   }
   STATUS      current
   DESCRIPTION
	   "Bridge level Transparent Bridging data."
   ::= { dot1dGroups 7 }

dot1dTpFdbGroup OBJECT-GROUP
   OBJECTS {

	   dot1dTpFdbAddress,
	   dot1dTpFdbPort,
	   dot1dTpFdbStatus
   }

   STATUS      current
   DESCRIPTION
	   "Filtering Database information for the Bridge."
   ::= { dot1dGroups 8 }

dot1dTpGroup OBJECT-GROUP
   OBJECTS {
	   dot1dTpPort,
	   dot1dTpPortMaxInfo,
	   dot1dTpPortInFrames,
	   dot1dTpPortOutFrames,
	   dot1dTpPortInDiscards
   }
   STATUS      current
   DESCRIPTION
	   "Dynamic Filtering Database information for each port of
	   the Bridge."
   ::= { dot1dGroups 9 }

-- ---------------------------------------------------------- --
-- The Static (Destination-Address Filtering) Database
-- ---------------------------------------------------------- --

dot1dStaticGroup OBJECT-GROUP
   OBJECTS {
	   dot1dStaticAddress,
	   dot1dStaticReceivePort,
	   dot1dStaticAllowedToGoTo,
	   dot1dStaticStatus
   }
   STATUS      current
   DESCRIPTION
	   "Static Filtering Database information for each port of
	   the Bridge."
   ::= { dot1dGroups 10 }

-- ---------------------------------------------------------- --
-- The Trap Notification Group
-- ---------------------------------------------------------- --

dot1dNotificationGroup NOTIFICATION-GROUP
   NOTIFICATIONS {
	   newRoot,

	   topologyChange
   }
   STATUS      current
   DESCRIPTION
	   "Group of objects describing notifications (traps)."
   ::= { dot1dGroups 11 }

-- ---------------------------------------------------------- --
-- compliance statements
-- ---------------------------------------------------------- --

bridgeCompliance1493 MODULE-COMPLIANCE
   STATUS      current
   DESCRIPTION
	   "The compliance statement for device support of bridging
	   services, as per RFC1493."

   MODULE
	   MANDATORY-GROUPS {
		   dot1dBaseBridgeGroup,
		   dot1dBasePortGroup
	   }

   GROUP   dot1dStpBridgeGroup
   DESCRIPTION
	   "Implementation of this group is mandatory for bridges
	   that support the Spanning Tree Protocol."

   GROUP   dot1dStpPortGroup
   DESCRIPTION
	   "Implementation of this group is mandatory for bridges
	   that support the Spanning Tree Protocol."

   GROUP   dot1dTpBridgeGroup
   DESCRIPTION
	   "Implementation of this group is mandatory for bridges
	   that support the transparent bridging mode.  A
	   transparent or SRT bridge will implement this group."

   GROUP   dot1dTpFdbGroup
   DESCRIPTION
	   "Implementation of this group is mandatory for bridges
	   that support the transparent bridging mode.  A
	   transparent or SRT bridge will implement this group."

   GROUP   dot1dTpGroup
   DESCRIPTION
	   "Implementation of this group is mandatory for bridges

	   that support the transparent bridging mode.  A
	   transparent or SRT bridge will implement this group."

   GROUP   dot1dStaticGroup
   DESCRIPTION
	   "Implementation of this group is optional."

   GROUP dot1dNotificationGroup
   DESCRIPTION
	   "Implementation of this group is optional."
   ::= { dot1dCompliances 1 }

bridgeCompliance4188 MODULE-COMPLIANCE
   STATUS      current
   DESCRIPTION
	   "The compliance statement for device support of bridging
	   services.  This supports 32-bit Path Cost values and the
	   more restricted bridge and port priorities, as per IEEE
	   802.1t.

	   Full support for the 802.1D management objects requires that
	   the SNMPv2-MIB [RFC3418] objects sysDescr, and sysUpTime, as
	   well as the IF-MIB [RFC2863] objects ifIndex, ifType,
	   ifDescr, ifPhysAddress, and ifLastChange are implemented."

   MODULE
	   MANDATORY-GROUPS {
		   dot1dBaseBridgeGroup,
		   dot1dBasePortGroup
	   }

   GROUP   dot1dStpBridgeGroup
   DESCRIPTION
	   "Implementation of this group is mandatory for
	   bridges that support the Spanning Tree Protocol."

   OBJECT dot1dStpPriority
   SYNTAX Integer32 (0|4096|8192|12288|16384|20480|24576
					|28672|32768|36864|40960|45056|49152
					|53248|57344|61440)
   DESCRIPTION
	   "The possible values defined by IEEE 802.1t."

   GROUP   dot1dStpPortGroup2
   DESCRIPTION
	   "Implementation of this group is mandatory for
	   bridges that support the Spanning Tree Protocol."

   GROUP   dot1dStpPortGroup3
   DESCRIPTION
	   "Implementation of this group is mandatory for bridges
		that support the Spanning Tree Protocol and 32-bit path
		costs.  In particular, this includes devices supporting
		IEEE 802.1t and IEEE 802.1w."

   OBJECT dot1dStpPortPriority
   SYNTAX Integer32 (0|16|32|48|64|80|96|112|128
					|144|160|176|192|208|224|240)
   DESCRIPTION
	   "The possible values defined by IEEE 802.1t."

   GROUP   dot1dTpBridgeGroup
   DESCRIPTION
	   "Implementation of this group is mandatory for
	   bridges that support the transparent bridging
	   mode.  A transparent or SRT bridge will implement
	   this group."

   GROUP   dot1dTpFdbGroup
   DESCRIPTION
	   "Implementation of this group is mandatory for
	   bridges that support the transparent bridging
	   mode.  A transparent or SRT bridge will implement
	   this group."

   GROUP   dot1dTpGroup
   DESCRIPTION
	   "Implementation of this group is mandatory for
	   bridges that support the transparent bridging
	   mode.  A transparent or SRT bridge will implement
	   this group."

   GROUP   dot1dStaticGroup
   DESCRIPTION
	   "Implementation of this group is optional."

   GROUP dot1dNotificationGroup
   DESCRIPTION
	   "Implementation of this group is optional."

   ::= { dot1dCompliances 2 }

END