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RSTP-MIB

AI MIB Summary

The RSTP-MIB module monitors and manages Rapid Spanning Tree Protocol (IEEE 802.1w) state transitions, port roles, and topology changes on Layer 2 bridging devices. It provides granular visibility into bridge port operational parameters, including port state, designated bridge/port IDs, and root path costs to detect and resolve network loops.

The Bridge MIB Extension module for managing devices that support the Rapid Spanning Tree Protocol defined by IEEE 802.1w.
Main OID:
rstpMIB.1.3.6.1.2.1.17.11
19
Objects
Active
Status
4
Dependencies

Imported Objects

Objects

19 total
Object Name
dot1dStpVersionThe version of Spanning Tree Protocol the bridge is currently running. The value 'stpCompatible(0)' indicates the Spanning Tree Protocol specified in IEEE 802.1D and 'rstp(2)' indicates the Rapid Spanning Tree Protocol specified in IEEE 802.1w. New value may be defined as future versions of the protocol become available.rw
Enumeration
.1.3.6.1.2.1.17.2.16
dot1dStpTxHoldCountThe value used by the Port Transmit state machine to limit the maximum transmission rate.rw
Integer32
.1.3.6.1.2.1.17.2.17
dot1dStpPathCostDefaultThe version of the Spanning Tree default Path Costs that are to be used by this Bridge. A value of 8021d1998(1) uses the 16-bit default Path Costs from IEEE Std. 802.1D-1998. A value of stp8021t2001(2) uses the 32-bit default Path Costs from IEEE Std. 802.1t.rw
Enumeration
.1.3.6.1.2.1.17.2.18
dot1dStpExtPortTableA table that contains port-specific Rapid Spanning Tree information.
SEQUENCE OF Dot1dStpExtPortEntry
.1.3.6.1.2.1.17.2.19
dot1dStpExtPortEntryA list of Rapid Spanning Tree information maintained by each port.
Dot1dStpExtPortEntry
.1.3.6.1.2.1.17.2.19.1
dot1dStpPortProtocolMigrationWhen operating in RSTP (version 2) mode, writing TRUE(1) to this object forces this port to transmit RSTP BPDUs. Any other operation on this object has no effect and it always returns FALSE(2) when read.rw
TruthValue (SNMPv2-TC)
.1.3.6.1.2.1.17.2.19.1.1
dot1dStpPortAdminEdgePortThe administrative value of the Edge Port parameter. A value of TRUE(1) indicates that this port should be assumed as an edge-port and a value of FALSE(2) indicates that this port should be assumed as a non-edge-port.rw
TruthValue (SNMPv2-TC)
.1.3.6.1.2.1.17.2.19.1.2
dot1dStpPortOperEdgePortThe operational value of the Edge Port parameter. The object is initialized to the value of dot1dStpPortAdminEdgePort and is set FALSE on reception of a BPDU.ro
TruthValue (SNMPv2-TC)
.1.3.6.1.2.1.17.2.19.1.3
dot1dStpPortAdminPointToPointThe administrative point-to-point status of the LAN segment attached to this port. A value of forceTrue(0) indicates that this port should always be treated as if it is connected to a point-to-point link. A value of forceFalse(1) indicates that this port should be treated as having a shared media connection. A value of auto(2) indicates that this port is considered to have a point-to-point link if it is an Aggregator and all of its members are aggregatable, or if the MAC entity is configured for full duplex operation, either through auto-negotiation or by management means.rw
Enumeration
.1.3.6.1.2.1.17.2.19.1.4
dot1dStpPortOperPointToPointThe operational point-to-point status of the LAN segment attached to this port. It indicates whether a port is considered to have a point-to-point connection or not. The value is determined by management or by auto-detection, as described in the dot1dStpPortAdminPointToPoint object.ro
TruthValue (SNMPv2-TC)
.1.3.6.1.2.1.17.2.19.1.5
dot1dStpPortAdminPathCostThe administratively assigned value for the contribution of this port to the path cost of paths towards the spanning tree root. Writing a value of '0' assigns the automatically calculated default Path Cost value to the port. If the default Path Cost is being used, this object returns '0' when read. This complements the object dot1dStpPortPathCost or dot1dStpPortPathCost32, which returns the operational value of the path cost.rw
Integer32
.1.3.6.1.2.1.17.2.19.1.6
rstpMIBThe Bridge MIB Extension module for managing devices that support the Rapid Spanning Tree Protocol defined by IEEE 802.1w.
MODULE-IDENTITY
.1.3.6.1.2.1.17.11
rstpConformance
OBJECT IDENTIFIER
.1.3.6.1.2.1.17.11.1
rstpGroups
OBJECT IDENTIFIER
.1.3.6.1.2.1.17.11.1.1
rstpBridgeGroupRapid Spanning Tree information for the bridge.
Unknown
.1.3.6.1.2.1.17.11.1.1.1
rstpDefaultPathCostGroupDefault Spanning Tree path cost information.
Unknown
.1.3.6.1.2.1.17.11.1.1.2
rstpPortGroupRapid Spanning Tree information for individual ports.
Unknown
.1.3.6.1.2.1.17.11.1.1.3
rstpCompliances
OBJECT IDENTIFIER
.1.3.6.1.2.1.17.11.1.2
rstpComplianceThe compliance statement for device support of bridging services.
Unknown
.1.3.6.1.2.1.17.11.1.2.1
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