📄 rfc1493.txt
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"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
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RFC 1493 Bridge MIB July 1993
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
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RFC 1493 Bridge MIB July 1993
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."
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RFC 1493 Bridge MIB July 1993
::= { 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
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RFC 1493 Bridge MIB July 1993
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
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RFC 1493 Bridge MIB July 1993
"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)
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RFC 1493 Bridge MIB July 1993
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
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