Dot1dbaseportcircuit, Dot1dbaseportdelayexce ededdiscards, Dot1dbaseportmtuexcee deddiscards – Dell POWEREDGE M1000E User Manual

Page 339: Dot1d stp group, Dot1dstp, Dot1dstpprotocolspecific ation, Dot1dstppriority, Dot1dstptimesincetopol ogychange, Dot1dstptopchanges, Dot1dstpdesignatedroot

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Fabric OS MIB Reference

319

53-1002750-01

Bridge-MIB

18

dot1d STP group

This contains objects that denote the bridge’s state with respect to the Spanning Tree Protocol.

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

dot1dBasePortCircuit
1.3.6.1.2.1.17.1.4.1.3

Read only

This object contains the name of an object unique to this port. For
example, when multiple ports correspond one-to-one with multiple X.25
virtual circuits, this value might identify an object instance (for example,
the first) 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}.

dot1dBasePortDelayExce
ededDiscards
1.3.6.1.2.1.17.1.4.1.4

Read only

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.

dot1dBasePortMtuExcee
dedDiscards
1.3.6.1.2.1.17.1.4.1.5

Read only

The number of frames discarded by this port due to an excessive size. It
is incremented by both transparent and source route bridges.

TABLE 120

Object and OID

Access

Description

dot1dStp
1.3.6.1.2.1.17.2

Not
accessible

This contains objects that denote the bridge’s state with respect to the
Spanning Tree Protocol.

dot1dStpProtocolSpecific
ation
1.3.6.1.2.1.17.2.1

Read only

An indication of what version of the Spanning Tree Protocol is being run.
Values:

unknown (1)

decLb100 (2)

ieee8021d (3)

dot1dStpPriority
1.3.6.1.2.1.17.2.2

Read-write The value of the write-able portion of the bridge ID (that is, 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 through 61440, in steps of 4096.

dot1dStpTimeSinceTopol
ogyChange
1.3.6.1.2.1.17.2.3

Read only

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.

dot1dStpTopChanges
1.3.6.1.2.1.17.2.4

Read only

The total number of topology changes detected by this bridge since the
management entity was last reset or initialized.

dot1dStpDesignatedRoot
1.3.6.1.2.1.17.2.5

Read only

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.

dot1dStpRootCost
1.3.6.1.2.1.17.2.6

Read only

The cost of the path to the root as seen from this bridge.

TABLE 119

Object and OID

Access

Description

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