BRIDGE-MIB
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- -- Changes to rfc1493 (Bridge MIB):
- -- No changes needed.
- -- dperkins@scruznet.com
- BRIDGE-MIB DEFINITIONS ::= BEGIN
- IMPORTS
- Counter, TimeTicks
- FROM RFC1155-SMI
- mib-2
- FROM RFC1213-MIB
- OBJECT-TYPE
- FROM RFC-1212
- TRAP-TYPE
- FROM RFC-1215;
- -- All representations of MAC addresses in this MIB Module
- -- use, as a textual convention (i.e. this convention does
- -- not affect their encoding), the data type:
- MacAddress ::= OCTET STRING (SIZE (6)) -- a 6 octet address
- -- in the
- -- "canonical"
- -- order
- -- defined by IEEE 802.1a, i.e., as if it were transmitted
- -- least significant bit first, even though 802.5 (in
- -- contrast to other n802.x protocols) requires MAC
- -- addresses to be transmitted most significant bit first.
- --
- -- 16-bit addresses, if needed, are represented by setting
- -- their upper 4 octets to all 0's, i.e., AAFF would be
- -- represented as 00000000AAFF.
- -- Similarly, all representations of Bridge-Id in this MIB
- -- Module use, as a textual convention (i.e. this
- -- convention does not affect their encoding), the data
- -- type:
- BridgeId ::= OCTET STRING (SIZE (8)) -- 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).
- -- 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 hundreths 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-1990 specifies a settable granularity of
- -- no more than 1 second for these timers. To avoid
- -- ambiguity, a data type is defined here as a textual
- -- convention and all representation of these timers
- -- in this MIB module are defined using this data type. An
- -- algorithm is also defined for converting between the
- -- different units, to ensure a timer's value is not
- -- distorted by multiple conversions.
- -- The data type is:
- Timeout ::= INTEGER -- a STP timer in units of 1/100 seconds
- -- 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 non-zero]
- -- 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).
- dot1dBridge OBJECT IDENTIFIER ::= { mib-2 17 }
- -- groups in the Bridge MIB
- dot1dBase OBJECT IDENTIFIER ::= { dot1dBridge 1 }
- dot1dStp OBJECT IDENTIFIER ::= { dot1dBridge 2 }
- dot1dSr OBJECT IDENTIFIER ::= { dot1dBridge 3 }
- -- separately documented
- dot1dTp OBJECT IDENTIFIER ::= { dot1dBridge 4 }
- dot1dStatic OBJECT IDENTIFIER ::= { dot1dBridge 5 }
- -- the dot1dBase group
- -- Implementation of the dot1dBase group is mandatory for all
- -- bridges.
- dot1dBaseBridgeAddress OBJECT-TYPE
- SYNTAX MacAddress
- ACCESS read-only
- STATUS mandatory
- 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-1990: Sections 6.4.1.1.3 and 3.12.5"
- ::= { dot1dBase 1 }
- dot1dBaseNumPorts OBJECT-TYPE
- SYNTAX INTEGER
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The number of ports controlled by this bridging
- entity."
- REFERENCE
- "IEEE 802.1D-1990: Section 6.4.1.1.3"
- ::= { dot1dBase 2 }
- dot1dBaseType OBJECT-TYPE
- SYNTAX INTEGER {
- unknown(1),
- transparent-only(2),
- sourceroute-only(3),
- srt(4)
- }
- ACCESS read-only
- STATUS mandatory
- 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
- ACCESS not-accessible
- STATUS mandatory
- 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
- ACCESS not-accessible
- STATUS mandatory
- DESCRIPTION
- "A list of information for each port of the
- bridge."
- REFERENCE
- "IEEE 802.1D-1990: Section 6.4.2, 6.6.1"
- INDEX { dot1dBasePort }
- ::= { dot1dBasePortTable 1 }
- Dot1dBasePortEntry ::=
- SEQUENCE {
- dot1dBasePort
- INTEGER,
- dot1dBasePortIfIndex
- INTEGER,
- dot1dBasePortCircuit
- OBJECT IDENTIFIER,
- dot1dBasePortDelayExceededDiscards
- Counter,
- dot1dBasePortMtuExceededDiscards
- Counter
- }
- dot1dBasePort OBJECT-TYPE
- SYNTAX INTEGER (1..65535)
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The port number of the port for which this entry
- contains bridge management information."
- ::= { dot1dBasePortEntry 1 }
- dot1dBasePortIfIndex OBJECT-TYPE
- SYNTAX INTEGER
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The value of the instance of the ifIndex object,
- defined in MIB-II, for the interface corresponding
- to this port."
- ::= { dot1dBasePortEntry 2 }
- dot1dBasePortCircuit OBJECT-TYPE
- SYNTAX OBJECT IDENTIFIER
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "For a port which (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 Counter
- ACCESS read-only
- STATUS mandatory
- 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-1990: Section 6.6.1.1.3"
- ::= { dot1dBasePortEntry 4 }
- dot1dBasePortMtuExceededDiscards OBJECT-TYPE
- SYNTAX Counter
- ACCESS read-only
- STATUS mandatory
- 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-1990: Section 6.6.1.1.3"
- ::= { dot1dBasePortEntry 5 }
- -- the dot1dStp group
- -- Implementation of the dot1dStp group 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)
- }
- ACCESS read-only
- STATUS mandatory
- 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."
- ::= { dot1dStp 1 }
- dot1dStpPriority OBJECT-TYPE
- SYNTAX INTEGER (0..65535)
- ACCESS read-write
- STATUS mandatory
- 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"
- ::= { dot1dStp 2 }
- dot1dStpTimeSinceTopologyChange OBJECT-TYPE
- SYNTAX TimeTicks
- ACCESS read-only
- STATUS mandatory
- 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"
- ::= { dot1dStp 3 }
- dot1dStpTopChanges OBJECT-TYPE
- SYNTAX Counter
- ACCESS read-only
- STATUS mandatory
- 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"
- ::= { dot1dStp 4 }
- dot1dStpDesignatedRoot OBJECT-TYPE
- SYNTAX BridgeId
- ACCESS read-only
- STATUS mandatory
- 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"
- ::= { dot1dStp 5 }
- dot1dStpRootCost OBJECT-TYPE
- SYNTAX INTEGER
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The cost of the path to the root as seen from
- this bridge."
- REFERENCE
- "IEEE 802.1D-1990: Section 4.5.3.2"
- ::= { dot1dStp 6 }
- dot1dStpRootPort OBJECT-TYPE
- SYNTAX INTEGER
- ACCESS read-only
- STATUS mandatory
- 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"
- ::= { dot1dStp 7 }
- dot1dStpMaxAge OBJECT-TYPE
- SYNTAX Timeout
- ACCESS read-only
- STATUS mandatory
- 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"
- ::= { dot1dStp 8 }
- dot1dStpHelloTime OBJECT-TYPE
- SYNTAX Timeout
- ACCESS read-only
- STATUS mandatory
- 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"
- ::= { dot1dStp 9 }
- dot1dStpHoldTime OBJECT-TYPE
- SYNTAX INTEGER
- ACCESS read-only
- STATUS mandatory
- 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"
- ::= { dot1dStp 10 }
- dot1dStpForwardDelay OBJECT-TYPE
- SYNTAX Timeout
- ACCESS read-only
- STATUS mandatory
- 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"
- ::= { dot1dStp 11 }
- dot1dStpBridgeMaxAge OBJECT-TYPE
- SYNTAX Timeout (600..4000)
- ACCESS read-write
- STATUS mandatory
- 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"
- ::= { dot1dStp 12 }
- dot1dStpBridgeHelloTime OBJECT-TYPE
- SYNTAX Timeout (100..1000)
- ACCESS read-write
- STATUS mandatory
- 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"
- ::= { dot1dStp 13 }
- dot1dStpBridgeForwardDelay OBJECT-TYPE
- SYNTAX Timeout (400..3000)
- ACCESS read-write
- STATUS mandatory
- 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"
- ::= { dot1dStp 14 }
- -- The Spanning Tree Port Table
- dot1dStpPortTable OBJECT-TYPE
- SYNTAX SEQUENCE OF Dot1dStpPortEntry
- ACCESS not-accessible
- STATUS mandatory
- DESCRIPTION
- "A table that contains port-specific information
- for the Spanning Tree Protocol."
- ::= { dot1dStp 15 }
- dot1dStpPortEntry OBJECT-TYPE
- SYNTAX Dot1dStpPortEntry
- ACCESS not-accessible
- STATUS mandatory
- 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
- INTEGER,
- dot1dStpPortPriority
- INTEGER,
- dot1dStpPortState
- INTEGER,
- dot1dStpPortEnable
- INTEGER,
- dot1dStpPortPathCost
- INTEGER,
- dot1dStpPortDesignatedRoot
- BridgeId,
- dot1dStpPortDesignatedCost
- INTEGER,
- dot1dStpPortDesignatedBridge
- BridgeId,
- dot1dStpPortDesignatedPort
- OCTET STRING,
- dot1dStpPortForwardTransitions
- Counter
- }
- dot1dStpPort OBJECT-TYPE
- SYNTAX INTEGER (1..65535)
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The port number of the port for which this entry
- contains Spanning Tree Protocol management
- information."
- REFERENCE
- "IEEE 802.1D-1990: Section 6.8.2.1.2"
- ::= { dot1dStpPortEntry 1 }
- dot1dStpPortPriority OBJECT-TYPE
- SYNTAX INTEGER (0..255)
- ACCESS read-write
- STATUS mandatory
- 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."
- REFERENCE
- "IEEE 802.1D-1990: Section 4.5.5.1"
- ::= { dot1dStpPortEntry 2 }
- dot1dStpPortState OBJECT-TYPE
- SYNTAX INTEGER {
- disabled(1),
- blocking(2),
- listening(3),
- learning(4),
- forwarding(5),
- broken(6)
- }
- ACCESS read-only
- STATUS mandatory
- 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 dot1dStpPortEnable), this object
- will have a value of disabled(1)."
- REFERENCE
- "IEEE 802.1D-1990: Section 4.5.5.2"
- ::= { dot1dStpPortEntry 3 }
- dot1dStpPortEnable OBJECT-TYPE
- SYNTAX INTEGER {
- enabled(1),
- disabled(2)
- }
- ACCESS read-write
- STATUS mandatory
- DESCRIPTION
- "The enabled/disabled status of the port."
- REFERENCE
- "IEEE 802.1D-1990: Section 4.5.5.2"
- ::= { dot1dStpPortEntry 4 }
- dot1dStpPortPathCost OBJECT-TYPE
- SYNTAX INTEGER (1..65535)
- ACCESS read-write
- STATUS mandatory
- 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."
- REFERENCE
- "IEEE 802.1D-1990: Section 4.5.5.3"
- ::= { dot1dStpPortEntry 5 }
- dot1dStpPortDesignatedRoot OBJECT-TYPE
- SYNTAX BridgeId
- ACCESS read-only
- STATUS mandatory
- 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-1990: Section 4.5.5.4"
- ::= { dot1dStpPortEntry 6 }
- dot1dStpPortDesignatedCost OBJECT-TYPE
- SYNTAX INTEGER
- ACCESS read-only
- STATUS mandatory
- 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-1990: Section 4.5.5.5"
- ::= { dot1dStpPortEntry 7 }
- dot1dStpPortDesignatedBridge OBJECT-TYPE
- SYNTAX BridgeId
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The Bridge Identifier of the bridge which this
- port considers to be the Designated Bridge for
- this port's segment."
- REFERENCE
- "IEEE 802.1D-1990: Section 4.5.5.6"
- ::= { dot1dStpPortEntry 8 }
- dot1dStpPortDesignatedPort OBJECT-TYPE
- SYNTAX OCTET STRING (SIZE (2))
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The Port Identifier of the port on the Designated
- Bridge for this port's segment."
- REFERENCE
- "IEEE 802.1D-1990: Section 4.5.5.7"
- ::= { dot1dStpPortEntry 9 }
- dot1dStpPortForwardTransitions OBJECT-TYPE
- SYNTAX Counter
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The number of times this port has transitioned
- from the Learning state to the Forwarding state."
- ::= { dot1dStpPortEntry 10 }
- -- the dot1dTp group
- -- Implementation of the dot1dTp group is optional. It is
- -- implemented by those bridges that support the transparent
- -- bridging mode. A transparent or SRT bridge will implement
- -- this group.
- dot1dTpLearnedEntryDiscards OBJECT-TYPE
- SYNTAX Counter
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The total number of Forwarding Database entries,
- which have been or would have been learnt, but
- have been discarded due to a lack of space to
- store them in the Forwarding Database. If this
- counter is increasing, it indicates that the
- Forwarding Database is regularly becoming full (a
- condition which 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-1990: Section 6.7.1.1.3"
- ::= { dot1dTp 1 }
- dot1dTpAgingTime OBJECT-TYPE
- SYNTAX INTEGER (10..1000000)
- ACCESS read-write
- STATUS mandatory
- DESCRIPTION
- "The timeout period in seconds for aging out
- dynamically learned forwarding information.
- 802.1D-1990 recommends a default of 300 seconds."
- REFERENCE
- "IEEE 802.1D-1990: Section 6.7.1.1.3"
- ::= { dot1dTp 2 }
- -- The Forwarding Database for Transparent Bridges
- dot1dTpFdbTable OBJECT-TYPE
- SYNTAX SEQUENCE OF Dot1dTpFdbEntry
- ACCESS not-accessible
- STATUS mandatory
- 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
- ACCESS not-accessible
- STATUS mandatory
- 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
- INTEGER,
- dot1dTpFdbStatus
- INTEGER
- }
- dot1dTpFdbAddress OBJECT-TYPE
- SYNTAX MacAddress
- ACCESS read-only
- STATUS mandatory
- 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"
- ::= { dot1dTpFdbEntry 1 }
- dot1dTpFdbPort OBJECT-TYPE
- SYNTAX INTEGER
- ACCESS read-only
- STATUS mandatory
- 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)
- }
- ACCESS read-only
- STATUS mandatory
- 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 not 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
- ACCESS not-accessible
- STATUS mandatory
- DESCRIPTION
- "A table that contains information about every
- port that is associated with this transparent
- bridge."
- ::= { dot1dTp 4 }
- dot1dTpPortEntry OBJECT-TYPE
- SYNTAX Dot1dTpPortEntry
- ACCESS not-accessible
- STATUS mandatory
- DESCRIPTION
- "A list of information for each port of a
- transparent bridge."
- INDEX { dot1dTpPort }
- ::= { dot1dTpPortTable 1 }
- Dot1dTpPortEntry ::=
- SEQUENCE {
- dot1dTpPort
- INTEGER,
- dot1dTpPortMaxInfo
- INTEGER,
- dot1dTpPortInFrames
- Counter,
- dot1dTpPortOutFrames
- Counter,
- dot1dTpPortInDiscards
- Counter
- }
- dot1dTpPort OBJECT-TYPE
- SYNTAX INTEGER (1..65535)
- ACCESS read-only
- STATUS mandatory
- 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 INTEGER
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "The maximum size of the INFO (non-MAC) field that
- this port will receive or transmit."
- ::= { dot1dTpPortEntry 2 }
- dot1dTpPortInFrames OBJECT-TYPE
- SYNTAX Counter
- ACCESS read-only
- STATUS mandatory
- 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-1990: Section 6.6.1.1.3"
- ::= { dot1dTpPortEntry 3 }
- dot1dTpPortOutFrames OBJECT-TYPE
- SYNTAX Counter
- ACCESS read-only
- STATUS mandatory
- 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-1990: Section 6.6.1.1.3"
- ::= { dot1dTpPortEntry 4 }
- dot1dTpPortInDiscards OBJECT-TYPE
- SYNTAX Counter
- ACCESS read-only
- STATUS mandatory
- DESCRIPTION
- "Count of valid frames received which were
- discarded (i.e., filtered) by the Forwarding
- Process."
- REFERENCE
- "IEEE 802.1D-1990: Section 6.6.1.1.3"
- ::= { dot1dTpPortEntry 5 }
- -- The Static (Destination-Address Filtering) Database
- -- Implementation of this group is optional.
- dot1dStaticTable OBJECT-TYPE
- SYNTAX SEQUENCE OF Dot1dStaticEntry
- ACCESS not-accessible
- STATUS mandatory
- 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-1990: Section 6.7.2"
- ::= { dot1dStatic 1 }
- dot1dStaticEntry OBJECT-TYPE
- SYNTAX Dot1dStaticEntry
- ACCESS not-accessible
- STATUS mandatory
- 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-1990: Section 6.7.2"
- INDEX { dot1dStaticAddress, dot1dStaticReceivePort }
- ::= { dot1dStaticTable 1 }
- Dot1dStaticEntry ::=
- SEQUENCE {
- dot1dStaticAddress
- MacAddress,
- dot1dStaticReceivePort
- INTEGER,
- dot1dStaticAllowedToGoTo
- OCTET STRING,
- dot1dStaticStatus
- INTEGER
- }
- dot1dStaticAddress OBJECT-TYPE
- SYNTAX MacAddress
- ACCESS read-write
- STATUS mandatory
- 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-1990: Section 3.9.1, 3.9.2"
- ::= { dot1dStaticEntry 1 }
- dot1dStaticReceivePort OBJECT-TYPE
- SYNTAX INTEGER
- ACCESS read-write
- STATUS mandatory
- 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
- ACCESS read-write
- STATUS mandatory
- 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."
- ::= { dot1dStaticEntry 3 }
- dot1dStaticStatus OBJECT-TYPE
- SYNTAX INTEGER {
- other(1),
- invalid(2),
- permanent(3),
- deleteOnReset(4),
- deleteOnTimeout(5)
- }
- ACCESS read-write
- STATUS mandatory
- 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 }
- -- Traps for use by Bridges
- -- Traps for the Spanning Tree Protocol
- newRoot TRAP-TYPE
- ENTERPRISE dot1dBridge
- 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."
- ::= 1
- topologyChange TRAP-TYPE
- ENTERPRISE dot1dBridge
- 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."
- ::= 2
- END