dot1dStpDesignatedRoot
BRIDGE-MIB ·
.1.3.6.1.2.1.17.2.5
Object
scalar
BridgeId
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.
Context
- MIB
- BRIDGE-MIB
- OID
.1.3.6.1.2.1.17.2.5- Type
- scalar
- Access
- readonly
- Status
- current
- Parent
- dot1dStp
- Siblings
- 14
Syntax
BridgeId
- Source
- BridgeId
- Base type
OctetString
Values & Constraints
Type Constraints
range: 8
Related Objects
Sibling Objects
| Object | Type | Syntax | OID |
|---|---|---|---|
| dot1dStpProtocolSpecification 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 implementati… | scalar | Enumeration | .1.3.6.1.2.1.17.2.1 |
| dot1dStpHoldTime 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. | scalar | centi-seconds SNMPv2-SMIInteger32 | .1.3.6.1.2.1.17.2.10 |
| dot1dStpForwardDelay 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 h… | scalar | centi-seconds Timeout | .1.3.6.1.2.1.17.2.11 |
| dot1dStpBridgeMaxAge The value that all bridges use for MaxAge when this
bridge is acting as the root. Note that 802.1D-1998
specifies that the range for this parameter is related
to the value of dot… | scalar | centi-seconds Integer32 | .1.3.6.1.2.1.17.2.12 |
| dot1dStpBridgeHelloTime 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-1998 to be 1 second. An
agent may retur… | scalar | centi-seconds Integer32 | .1.3.6.1.2.1.17.2.13 |
| dot1dStpBridgeForwardDelay The value that all bridges use for ForwardDelay when
this bridge is acting as the root. Note that
802.1D-1998 specifies that the range for this parameter
is related to the value … | scalar | centi-seconds Integer32 | .1.3.6.1.2.1.17.2.14 |
| dot1dStpPortTable A table that contains port-specific information
for the Spanning Tree Protocol. | table | - | .1.3.6.1.2.1.17.2.15 |
| dot1dStpPriority 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 val… | scalar | Integer32 | .1.3.6.1.2.1.17.2.2 |
| dot1dStpTimeSinceTopologyChange 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 … | scalar | centi-seconds SNMPv2-SMITimeTicks | .1.3.6.1.2.1.17.2.3 |
| dot1dStpTopChanges The total number of topology changes detected by
this bridge since the management entity was last
reset or initialized. | scalar | SNMPv2-SMICounter32 | .1.3.6.1.2.1.17.2.4 |
| dot1dStpRootCost The cost of the path to the root as seen from
this bridge. | scalar | SNMPv2-SMIInteger32 | .1.3.6.1.2.1.17.2.6 |
| dot1dStpRootPort The port number of the port that offers the lowest
cost path from this bridge to the root bridge. | scalar | SNMPv2-SMIInteger32 | .1.3.6.1.2.1.17.2.7 |
| dot1dStpMaxAge 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 th… | scalar | centi-seconds Timeout | .1.3.6.1.2.1.17.2.8 |
| dot1dStpHelloTime 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 hun… | scalar | centi-seconds Timeout | .1.3.6.1.2.1.17.2.9 |