-- Network Working Group E. Decker
-- Request for Comments: 1493 cisco Systems, Inc.
-- Obsoletes: 1286 P. Langille
-- Digital Equipment Corporation
-- A. Rijsinghani
-- Digital Equipment Corporation
-- K. McCloghrie
-- Hughes LAN Systems, Inc.
-- July 1993
--
--
-- Definitions of Managed Objects
-- for Bridges
--BRIDGE-MIB DEFINITIONS::=BEGINIMPORTSCounter,TimeTicksFROM RFC1155-SMI
mib-2
FROM RFC1213-MIB
OBJECT-TYPEFROM RFC-1212
TRAP-TYPEFROM 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::=OCTETSTRING(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::=OCTETSTRING(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 OBJECTIDENTIFIER::={ mib-2 17}-- groups in the Bridge MIBdot1dBase OBJECTIDENTIFIER::={ dot1dBridge 1}dot1dStp OBJECTIDENTIFIER::={ dot1dBridge 2}dot1dSr OBJECTIDENTIFIER::={ dot1dBridge 3}-- separately documenteddot1dTp OBJECTIDENTIFIER::={ dot1dBridge 4}
dot1dStatic OBJECTIDENTIFIER::={ dot1dBridge 5}-- the dot1dBase group-- Implementation of the dot1dBase group is mandatory for all-- bridges.dot1dBaseBridgeAddress OBJECT-TYPESYNTAXMacAddressACCESSread-onlySTATUSmandatoryDESCRIPTION"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-TYPESYNTAXINTEGERACCESSread-only
STATUSmandatoryDESCRIPTION"The number of ports controlled by this bridging
entity."REFERENCE"IEEE 802.1D-1990: Section 6.4.1.1.3"::={ dot1dBase 2}dot1dBaseType OBJECT-TYPESYNTAXINTEGER{unknown(1),transparent-only(2),sourceroute-only(3),srt(4)}ACCESSread-onlySTATUSmandatoryDESCRIPTION"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-TYPESYNTAXSEQUENCEOF Dot1dBasePortEntry
ACCESSnot-accessibleSTATUSmandatoryDESCRIPTION"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-TYPESYNTAX Dot1dBasePortEntry
ACCESSnot-accessibleSTATUSmandatoryDESCRIPTION"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
OBJECTIDENTIFIER,
dot1dBasePortDelayExceededDiscards
Counter,
dot1dBasePortMtuExceededDiscards
Counter}dot1dBasePort OBJECT-TYPESYNTAXINTEGER(1..65535)ACCESSread-onlySTATUSmandatoryDESCRIPTION"The port number of the port for which this entry
contains bridge management information."::={ dot1dBasePortEntry 1}dot1dBasePortIfIndex OBJECT-TYPESYNTAXINTEGERACCESSread-onlySTATUSmandatoryDESCRIPTION"The value of the instance of the ifIndex object,
defined in MIB-II, for the interface corresponding
to this port."::={ dot1dBasePortEntry 2}dot1dBasePortCircuit OBJECT-TYPESYNTAXOBJECTIDENTIFIERACCESSread-onlySTATUSmandatoryDESCRIPTION"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-TYPESYNTAXCounterACCESSread-onlySTATUSmandatoryDESCRIPTION"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-TYPESYNTAXCounterACCESSread-onlySTATUSmandatoryDESCRIPTION"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-TYPESYNTAXINTEGER{unknown(1),decLb100(2),ieee8021d(3)
}ACCESSread-onlySTATUSmandatoryDESCRIPTION"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-TYPESYNTAXINTEGER(0..65535)ACCESSread-writeSTATUSmandatoryDESCRIPTION"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-TYPESYNTAXTimeTicksACCESSread-onlySTATUSmandatoryDESCRIPTION"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-TYPESYNTAXCounterACCESSread-onlySTATUSmandatoryDESCRIPTION"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-TYPESYNTAXBridgeIdACCESSread-only
STATUSmandatoryDESCRIPTION"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-TYPESYNTAXINTEGERACCESSread-onlySTATUSmandatoryDESCRIPTION"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-TYPESYNTAXINTEGERACCESSread-onlySTATUSmandatoryDESCRIPTION"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-TYPESYNTAXTimeoutACCESSread-onlySTATUSmandatoryDESCRIPTION"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-TYPESYNTAXTimeoutACCESSread-onlySTATUSmandatoryDESCRIPTION"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-TYPESYNTAXINTEGERACCESSread-onlySTATUSmandatoryDESCRIPTION"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-TYPESYNTAXTimeoutACCESSread-onlySTATUSmandatoryDESCRIPTION"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-TYPESYNTAXTimeout(600..4000)ACCESSread-writeSTATUSmandatoryDESCRIPTION"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-TYPESYNTAXTimeout(100..1000)ACCESSread-writeSTATUSmandatoryDESCRIPTION"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-TYPESYNTAXTimeout(400..3000)ACCESSread-writeSTATUSmandatoryDESCRIPTION"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 Tabledot1dStpPortTable OBJECT-TYPESYNTAXSEQUENCEOF Dot1dStpPortEntry
ACCESSnot-accessibleSTATUSmandatoryDESCRIPTION"A table that contains port-specific information
for the Spanning Tree Protocol."::={ dot1dStp 15}dot1dStpPortEntry OBJECT-TYPESYNTAX Dot1dStpPortEntry
ACCESSnot-accessibleSTATUSmandatoryDESCRIPTION"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
OCTETSTRING,
dot1dStpPortForwardTransitions
Counter}dot1dStpPort OBJECT-TYPESYNTAXINTEGER(1..65535)
ACCESSread-onlySTATUSmandatoryDESCRIPTION"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-TYPESYNTAXINTEGER(0..255)ACCESSread-writeSTATUSmandatoryDESCRIPTION"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-TYPESYNTAXINTEGER{
disabled(1),blocking(2),listening(3),learning(4),forwarding(5),broken(6)}ACCESSread-onlySTATUSmandatoryDESCRIPTION"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-TYPESYNTAXINTEGER{
enabled(1),disabled(2)}ACCESSread-writeSTATUSmandatoryDESCRIPTION"The enabled/disabled status of the port."REFERENCE"IEEE 802.1D-1990: Section 4.5.5.2"::={ dot1dStpPortEntry 4}dot1dStpPortPathCost OBJECT-TYPESYNTAXINTEGER(1..65535)ACCESSread-writeSTATUSmandatoryDESCRIPTION"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-TYPESYNTAXBridgeIdACCESSread-onlySTATUSmandatoryDESCRIPTION"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-TYPESYNTAXINTEGERACCESSread-onlySTATUSmandatoryDESCRIPTION"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
SYNTAXBridgeIdACCESSread-onlySTATUSmandatoryDESCRIPTION"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-TYPESYNTAXOCTETSTRING(SIZE(2))ACCESSread-onlySTATUSmandatoryDESCRIPTION"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-TYPESYNTAXCounterACCESSread-only
STATUSmandatoryDESCRIPTION"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-TYPESYNTAXCounterACCESSread-onlySTATUSmandatoryDESCRIPTION"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-TYPESYNTAXINTEGER(10..1000000)ACCESSread-writeSTATUSmandatoryDESCRIPTION"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 Bridgesdot1dTpFdbTable OBJECT-TYPESYNTAXSEQUENCEOF Dot1dTpFdbEntry
ACCESSnot-accessibleSTATUSmandatoryDESCRIPTION"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-TYPESYNTAX Dot1dTpFdbEntry
ACCESSnot-accessibleSTATUSmandatoryDESCRIPTION"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-TYPESYNTAXMacAddressACCESSread-onlySTATUSmandatoryDESCRIPTION"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-TYPESYNTAXINTEGERACCESSread-onlySTATUSmandatoryDESCRIPTION"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-TYPESYNTAXINTEGER{other(1),
invalid(2),learned(3),self(4),mgmt(5)}ACCESSread-onlySTATUSmandatoryDESCRIPTION"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 Bridgesdot1dTpPortTable OBJECT-TYPESYNTAXSEQUENCEOF Dot1dTpPortEntry
ACCESSnot-accessibleSTATUSmandatoryDESCRIPTION"A table that contains information about every
port that is associated with this transparent
bridge."::={ dot1dTp 4}dot1dTpPortEntry OBJECT-TYPESYNTAX Dot1dTpPortEntry
ACCESSnot-accessible
STATUSmandatoryDESCRIPTION"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-TYPESYNTAXINTEGER(1..65535)ACCESSread-onlySTATUSmandatoryDESCRIPTION"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-TYPESYNTAXINTEGERACCESSread-onlySTATUSmandatoryDESCRIPTION"The maximum size of the INFO (non-MAC) field that
this port will receive or transmit."::={ dot1dTpPortEntry 2}dot1dTpPortInFrames OBJECT-TYPESYNTAXCounterACCESSread-onlySTATUSmandatoryDESCRIPTION"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-TYPESYNTAXCounterACCESSread-onlySTATUSmandatoryDESCRIPTION"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-TYPESYNTAXCounterACCESSread-onlySTATUSmandatoryDESCRIPTION"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-TYPESYNTAXSEQUENCEOF Dot1dStaticEntry
ACCESSnot-accessibleSTATUSmandatoryDESCRIPTION"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-TYPESYNTAX Dot1dStaticEntry
ACCESSnot-accessibleSTATUSmandatoryDESCRIPTION"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
OCTETSTRING,
dot1dStaticStatus
INTEGER}dot1dStaticAddress OBJECT-TYPESYNTAXMacAddressACCESSread-write
STATUSmandatoryDESCRIPTION"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-TYPESYNTAXINTEGERACCESSread-writeSTATUSmandatoryDESCRIPTION"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-TYPESYNTAXOCTETSTRINGACCESSread-write
STATUSmandatoryDESCRIPTION"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-TYPESYNTAXINTEGER{other(1),invalid(2),
permanent(3),deleteOnReset(4),deleteOnTimeout(5)}ACCESSread-writeSTATUSmandatoryDESCRIPTION"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 ProtocolnewRoot TRAP-TYPEENTERPRISE 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."::=1topologyChange TRAP-TYPEENTERPRISE 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."::=2END