BRIDGE-MIB Table View

A table that contains generic information about every
port that is associated with this bridge.  Transparent,
source-route, and srt ports are included.

dot1dBasePortEntry row .1.3.6.1.2.1.17.1.4.1

A list of information for each port of the bridge.

Indexes

dot1dBasePort

Column	Syntax	OID
dot1dBasePort The port number of the port for which this entry contains bridge management information.	Integer32 Constraints: range: 1-65535	.1.3.6.1.2.1.17.1.4.1.1
dot1dBasePortIfIndex The value of the instance of the ifIndex object, defined in IF-MIB, for the interface corresponding to this port.	IF-MIBInterfaceIndex Type Constraints: range: 1..2147483647 Description: A unique value, greater than zero, for each interface or interface sub-layer in the managed system. It is recommended that values are assigned contiguously starting from 1. The value for each interface sub-layer must …	.1.3.6.1.2.1.17.1.4.1.2
dot1dBasePortCircuit 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 multi…	ObjectIdentifier	.1.3.6.1.2.1.17.1.4.1.3
dot1dBasePortDelayExceededDiscards 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.	SNMPv2-SMICounter32 Type Constraints: range: 0..4294967295	.1.3.6.1.2.1.17.1.4.1.4
dot1dBasePortMtuExceededDiscards The number of frames discarded by this port due to an excessive size. It is incremented by both transparent and source route bridges.	SNMPv2-SMICounter32 Type Constraints: range: 0..4294967295	.1.3.6.1.2.1.17.1.4.1.5

A table that contains port-specific information
for the Spanning Tree Protocol.

dot1dStpPortEntry row .1.3.6.1.2.1.17.2.15.1

A list of information maintained by every port about
the Spanning Tree Protocol state for that port.

Indexes

dot1dStpPort

Column	Syntax	OID
dot1dStpPort The port number of the port for which this entry contains Spanning Tree Protocol management information.	Integer32 Constraints: range: 1-65535	.1.3.6.1.2.1.17.2.15.1.1
dot1dStpPortPriority 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 IE…	Integer32r/w Constraints: range: 0-255	.1.3.6.1.2.1.17.2.15.1.2
dot1dStpPortState 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 wil…	Enumeration Enumerated Values: 1 disabled 2 blocking 3 listening 4 learning 5 forwarding 6 broken	.1.3.6.1.2.1.17.2.15.1.3
dot1dStpPortEnable The enabled/disabled status of the port.	Enumerationr/w Enumerated Values: 1 enabled 2 disabled	.1.3.6.1.2.1.17.2.15.1.4
dot1dStpPortPathCost 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 …	Integer32r/w Constraints: range: 1-65535	.1.3.6.1.2.1.17.2.15.1.5
dot1dStpPortDesignatedRoot 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.	BridgeId Type Constraints: range: 8	.1.3.6.1.2.1.17.2.15.1.6
dot1dStpPortDesignatedCost 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.	SNMPv2-SMIInteger32 Type Constraints: range: -2147483648..2147483647	.1.3.6.1.2.1.17.2.15.1.7
dot1dStpPortDesignatedBridge The Bridge Identifier of the bridge that this port considers to be the Designated Bridge for this port's segment.	BridgeId Type Constraints: range: 8	.1.3.6.1.2.1.17.2.15.1.8
dot1dStpPortDesignatedPort The Port Identifier of the port on the Designated Bridge for this port's segment.	OctetString Constraints: range: 2-2	.1.3.6.1.2.1.17.2.15.1.9
dot1dStpPortForwardTransitions The number of times this port has transitioned from the Learning state to the Forwarding state.	SNMPv2-SMICounter32 Type Constraints: range: 0..4294967295	.1.3.6.1.2.1.17.2.15.1.10
dot1dStpPortPathCost32 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 t…	Integer32r/w Constraints: range: 1-200000000	.1.3.6.1.2.1.17.2.15.1.11

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.

dot1dTpFdbEntry row .1.3.6.1.2.1.17.4.3.1

Information about a specific unicast MAC address
for which the bridge has some forwarding and/or
filtering information.

Indexes

dot1dTpFdbAddress

Column	Syntax	OID
dot1dTpFdbAddress A unicast MAC address for which the bridge has forwarding and/or filtering information.	SNMPv2-TCMacAddress Type Constraints: range: 6 Description: Represents an 802 MAC address represented 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 802.x protocols) requires M…	.1.3.6.1.2.1.17.4.3.1.1
dot1dTpFdbPort 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 …	SNMPv2-SMIInteger32 Type Constraints: range: -2147483648..2147483647	.1.3.6.1.2.1.17.4.3.1.2
dot1dTpFdbStatus 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 dot1dT…	Enumeration Enumerated Values: 1 other 2 invalid 3 learned 4 self 5 mgmt	.1.3.6.1.2.1.17.4.3.1.3

A table that contains information about every port that
is associated with this transparent bridge.

dot1dTpPortEntry row .1.3.6.1.2.1.17.4.4.1

A list of information for each port of a transparent
bridge.

Indexes

dot1dTpPort

Column	Syntax	OID
dot1dTpPort The port number of the port for which this entry contains Transparent bridging management information.	Integer32 Constraints: range: 1-65535	.1.3.6.1.2.1.17.4.4.1.1
dot1dTpPortMaxInfo The maximum size of the INFO (non-MAC) field that this port will receive or transmit.	bytesSNMPv2-SMIInteger32 Type Constraints: range: -2147483648..2147483647	.1.3.6.1.2.1.17.4.4.1.2
dot1dTpPortInFrames 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 bein…	framesSNMPv2-SMICounter32 Type Constraints: range: 0..4294967295	.1.3.6.1.2.1.17.4.4.1.3
dot1dTpPortOutFrames 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 …	framesSNMPv2-SMICounter32 Type Constraints: range: 0..4294967295	.1.3.6.1.2.1.17.4.4.1.4
dot1dTpPortInDiscards Count of received valid frames that were discarded (i.e., filtered) by the Forwarding Process.	framesSNMPv2-SMICounter32 Type Constraints: range: 0..4294967295	.1.3.6.1.2.1.17.4.4.1.5

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.

dot1dStaticEntry row .1.3.6.1.2.1.17.5.1.1

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…

Indexes

dot1dStaticAddress dot1dStaticReceivePort

Column	Syntax	OID
dot1dStaticAddress 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.	SNMPv2-TCMacAddressr/w Type Constraints: range: 6 Description: Represents an 802 MAC address represented 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 802.x protocols) requires M…	.1.3.6.1.2.1.17.5.1.1.1
dot1dStaticReceivePort 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 b…	Integer32r/w Constraints: range: 0-65535	.1.3.6.1.2.1.17.5.1.1.2
dot1dStaticAllowedToGoTo 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 f…	OctetStringr/w Constraints: range: 0-512	.1.3.6.1.2.1.17.5.1.1.3
dot1dStaticStatus 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 o…	Enumerationr/w Enumerated Values: 1 other 2 invalid 3 permanent 4 deleteOnReset 5 deleteOnTimeout	.1.3.6.1.2.1.17.5.1.1.4