swMSTPInstRootPort
MSTP-MIB ·
.1.3.6.1.4.1.171.12.15.2.3.1.18
Object
column
Integer32
The port number of the port which offers the lowest cost path from this bridge to the CIST or MSTI root bridge.
Context
- MIB
- MSTP-MIB
- OID
.1.3.6.1.4.1.171.12.15.2.3.1.18- Type
- column
- Access
- readonly
- Status
- current
- Parent
- swMSTPInstanceCtrlEntry
- Table
- swMSTPInstanceCtrlTable
- Siblings
- 23
Syntax
Integer32
- Source
- COPS-PR-SPPIInteger32
- Base type
Integer32
Values & Constraints
Type Constraints
range: -2147483648..2147483647
Related Objects
Sibling Objects
| Object | Type | Syntax | OID |
|---|---|---|---|
| swMSTPInstId This object indicates the specific instance.
An MSTP Instance ID (MSTID) of zero is used to identify the CIST. | column | Integer32 | .1.3.6.1.4.1.171.12.15.2.3.1.1 |
| swMSTPInstType This object indicates the type of instance. | column | Enumeration | .1.3.6.1.4.1.171.12.15.2.3.1.10 |
| swMSTPInstStatus The instance state that could be enabled/disabled. | column | Enumeration | .1.3.6.1.4.1.171.12.15.2.3.1.11 |
| swMSTPInstPriority The priority of the instance. The priority must be divisible by 4096 | column | Integer32 | .1.3.6.1.4.1.171.12.15.2.3.1.12 |
| swMSTPInstDesignatedRootBridge The bridge identifier of the CIST. For MST instance,
this object is unused. | column | BridgeId | .1.3.6.1.4.1.171.12.15.2.3.1.13 |
| swMSTPInstExternalRootCost The path cost between MST Regions from the transmitting bridge to
the CIST Root. For MST instance this object is unused. | column | Integer32 | .1.3.6.1.4.1.171.12.15.2.3.1.14 |
| swMSTPInstRegionalRootBridge For CIST, Regional Root Identifier is the Bridge Identifier
of the single bridge in a Region whose CIST Root Port is a
Boundary Port, or the Bridge Identifier of the CIST Root
… | column | BridgeId | .1.3.6.1.4.1.171.12.15.2.3.1.15 |
| swMSTPInstInternalRootCost For CIST, the internal path cost is the path cost to
the CIST Regional Root;
For MSTI, the internal path cost is the path cost to
the MSTI Regional Root for this particular MSTI… | column | Integer32 | .1.3.6.1.4.1.171.12.15.2.3.1.16 |
| swMSTPInstDesignatedBridge The Bridge Identifier for the transmitting bridge for
this CIST or MSTI | column | BridgeId | .1.3.6.1.4.1.171.12.15.2.3.1.17 |
| swMSTPInstMaxAge 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… | column | Integer32 | .1.3.6.1.4.1.171.12.15.2.3.1.19 |
| swMSTPInstVlanRangeList1to64 This object indicates the VLAN range (1-512)
that belongs to the instance. | column | OctetString | .1.3.6.1.4.1.171.12.15.2.3.1.2 |
| swMSTPInstForwardDelay This value, 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 an… | column | Integer32 | .1.3.6.1.4.1.171.12.15.2.3.1.20 |
| swMSTPInstLastTopologyChange The time (in hundredths of a second) since the
last time a topology change was detected by the
bridge entity. | column | SNMPv2-SMITimeTicks | .1.3.6.1.4.1.171.12.15.2.3.1.21 |
| swMSTPInstTopChangesCount The total number of topology changes detected by
this bridge since the management entity was last
reset or initialized. | column | RFC1155-SMICounter | .1.3.6.1.4.1.171.12.15.2.3.1.22 |
| swMSTPInstRemainHops The root bridge in the instance for MSTI always sends a BPDU
with a maximum hop count. When a switch receives this BPDU,
it decrements the received maximum hop count by one and
pr… | column | Integer32 | .1.3.6.1.4.1.171.12.15.2.3.1.23 |
| swMSTPInstRowStatus This object indicates the RowStatus of this entry. | column | SNMPv2-TCRowStatus | .1.3.6.1.4.1.171.12.15.2.3.1.24 |
| swMSTPInstVlanRangeList65to128 This object indicates the VLAN range (513-1024)
that belongs to the instance. | column | OctetString | .1.3.6.1.4.1.171.12.15.2.3.1.3 |
| swMSTPInstVlanRangeList129to192 This object indicates the VLAN range (1025-1536)
that belongs to the instance. | column | OctetString | .1.3.6.1.4.1.171.12.15.2.3.1.4 |
| swMSTPInstVlanRangeList193to256 This object indicates the VLAN range(1537-2048)
that belongs to the instance. | column | OctetString | .1.3.6.1.4.1.171.12.15.2.3.1.5 |
| swMSTPInstVlanRangeList257to320 This object indicates the VLAN range (2049-2560)
that belongs to the instance. | column | OctetString | .1.3.6.1.4.1.171.12.15.2.3.1.6 |
| swMSTPInstVlanRangeList321to384 This object indicates the VLAN range (2561-3072)
that belongs to the instance. | column | OctetString | .1.3.6.1.4.1.171.12.15.2.3.1.7 |
| swMSTPInstVlanRangeList385to448 This object indicates the VLAN range (3073-3584)
that belongs to the instance. | column | OctetString | .1.3.6.1.4.1.171.12.15.2.3.1.8 |
| swMSTPInstVlanRangeList449to512 This object indicates the VLAN range (3585-4096)
that belongs to the instance. | column | OctetString | .1.3.6.1.4.1.171.12.15.2.3.1.9 |