All MIBs › PRVT-MST-MIB
Organization: BATM Advanced Communication
Last Updated: 2005-02-16
Category: Spanning Tree
Description: Manages BATM Advanced Communication Multiple Spanning Tree (MST/802.1s) instance configuration, VLAN mapping, and port roles.
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What Is PRVT-MST-MIB?
PRVT-MST-MIB is a BATM Advanced Communication proprietary MIB implementing IEEE 802.1s Multiple Spanning Tree Protocol (MSTP). Its objects cover a region edit-buffer status/operation, region name/edit-name, region revision/edit-revision, an instance-VLAN table (instance index, VLAN-membership bitmaps across four 1k ranges) with an edit variant, max hop count and max instance number, and an instance table (designated root, root cost). As a configuration/protocol-status MIB it lets an administrator confirm MST region identity and per-instance VLAN mapping/root-bridge status on a BATM switch. It is deployed on BATM Advanced Communication switches (MSTP). Engineers can download the PRVT-MST-MIB file directly to load it into their MIB browser.
IPNetwork Monitor allows you to monitor SNMP objects defined in PRVT-MST-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.
Supported Devices
- BATM Advanced Communication switches (MSTP)
Monitoring Examples
An administrator checks mSTInstanceDesignatedRoot and mSTInstanceVlansMapped to confirm an MST instance's root bridge and VLAN mapping on a BATM switch.
What Can Be Monitored
- MST region identity and per-instance VLAN mapping/root status
This MIB depends on
Related MIBs
Imported Objects
From BRIDGE-MIB
| BridgeId | |
| Timeout | |
| dot1dBasePort | OBJECT-TYPE |
| dot1dStpPortEntry |
From PRVT-SWITCH-MIB
| switch | OBJECT-IDENTITY |
From SNMPv2-CONF
| MODULE-COMPLIANCE | |
| NOTIFICATION-GROUP | |
| OBJECT-GROUP |
From SNMPv2-SMI
| Counter32 | |
| Integer32 | |
| MODULE-IDENTITY | |
| NOTIFICATION-TYPE | |
| OBJECT-TYPE |
From SNMPv2-TC
| DisplayString | |
| TimeStamp | |
| TruthValue |
OIDs
| OID symbolic | OID numeric | Type | Access | Description |
|---|---|---|---|---|
| TIM mSTBridgeForwardDelay | 1.3.6.1.4.1.738.1.5.107.1.3.8 | Timeout | read-write | The value that all bridges use for ForwardDelay when this bridge is acting as the root. Note that 802.1D-1990 specifies that the range for this parameter is related to the value of mSTBridgeMaxAge. The granularity of this timer is specified by 802.1D-1990 to be 1 second. An agent may return a badValue error if a set operation is attempted with a value that is not a whole number of seconds. |
| TIM mSTBridgeHelloTime | 1.3.6.1.4.1.738.1.5.107.1.3.7 | Timeout | read-write | 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- 1990 to be 1 second. An agent may return a badValue error if a set operation is attempted with a value that is not a whole number of seconds. |
| TIM mSTBridgeMaxAge | 1.3.6.1.4.1.738.1.5.107.1.3.6 | Timeout | read-write | The value that all bridges use for MaxAge when this bridge is acting as the root. Note that 802.1D-1990 specifies that the range for this parameter is related to the value of mSTBridgeHelloTime. The granularity of this timer is specified by 802.1D-1990 to be 1 second. An agent may return a badValue error if a set operation is attempted with a value that is not a whole number of seconds. |
| mSTBridgeParams | 1.3.6.1.4.1.738.1.5.107.1.2 | |||
| TIM mSTForwardDelay | 1.3.6.1.4.1.738.1.5.107.1.3.5 | Timeout | read-only | This time value, measured in units of hundredths of a second, controls how fast a port changes its spanning state when moving toward the Forwarding state. The value determines how long the port stays in each of the Listening and Learning states, which precede the Forwarding state. This value is also used, when a topology change has been detected and is underway, to age all dynamic entries in the Forwarding Database. Note that this value is the one that this bridge is currently using, in contrast to mSTBridgeForwardDelay which is the value that this bridge and all others would start using if/when this bridge were to become the root. |
| TIM mSTHelloTime | 1.3.6.1.4.1.738.1.5.107.1.3.4 | Timeout | read-only | The time between the transmissions of Configuration bridge PDUs by this node on any port when the port is the root of the spanning tree or trying to become so, in units of hundredths of a second. This is the actual value that this bridge is currently using. |
| BRI mSTInstanceDesignatedBridge | 1.3.6.1.4.1.738.1.5.107.1.2.3.1.4 | BridgeId | read-only | The unique MST Designated Bridge Identifier. |
| BRI mSTInstanceDesignatedRoot | 1.3.6.1.4.1.738.1.5.107.1.2.3.1.1 | BridgeId | read-only | The unique MST 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. |
| OCT mSTInstanceEditVlansMap | 1.3.6.1.4.1.738.1.5.107.1.1.2.6.1.1 | OCTET STRING | read-write | A string of octets containing one bit per VLAN. The first octet corresponds to VLANs with VlanIndex values of 0 through 7; the second octet to VLANs 8 through 15; etc. The least significant bit of each octet corresponds to the lowest value VlanIndex in that octet. For each VLAN, if it is mapped to this MST instance, then the bit corresponding to that VLAN is set to '1'. Each VLAN can only be mapped to one unique MST instance in the range from 1 to mSTMaxInstanceNumber. If the bit corresponding to a VLAN is changed from '1' to '0', then that VLAN will be automatically mapped to MST instance 0 by the device. |
| OCT mSTInstanceEditVlansMap2k | 1.3.6.1.4.1.738.1.5.107.1.1.2.6.1.2 | OCTET STRING | read-write | A string of octets containing one bit per VLAN for VLANs with VlanIndex values of 1024 through 2047. The first octet corresponds to VLANs with VlanIndex values of 1024 through 1031; the second octet to VLANs 1032 through 1039; etc. The least significant bit of each octet corresponds to the lowest value VlanIndex in that octet. For each VLAN, if it is mapped to this MST instance, then the bit corresponding to that VLAN is set to '1'. Each VLAN can only be mapped to one unique MST instance in the range from 1 to mSTMaxInstanceNumber. If the bit corresponding to a VLAN is changed from '1' to '0', then that VLAN will be automatically mapped to MST instance 0 by the device. |
| OCT mSTInstanceEditVlansMap3k | 1.3.6.1.4.1.738.1.5.107.1.1.2.6.1.3 | OCTET STRING | read-write | A string of octets containing one bit per VLAN for VLANs with VlanIndex values of 2048 through 3071. The first octet corresponds to VLANs with VlanIndex values of 2048 through 2055; the second octet to VLANs 2056 through 2063; etc. The least significant bit of each octet corresponds to the lowest value VlanIndex in that octet. For each VLAN, if it is mapped to this MST instance, then the bit corresponding to that VLAN is set to '1'. Each VLAN can only be mapped to one unique MST instance in the range from 1 to mSTMaxInstanceNumber. If the bit corresponding to a VLAN is changed from '1' to '0', then that VLAN will be automatically mapped to MST instance 0 by the device. |
| OCT mSTInstanceEditVlansMap4k | 1.3.6.1.4.1.738.1.5.107.1.1.2.6.1.4 | OCTET STRING | read-write | A string of octets containing one bit per VLAN for VLANs with VlanIndex values of 3072 through 4095. The first octet corresponds to VLANs with VlanIndex values of 3072 through 3079; the second octet to VLANs 3080 through 3087; etc. The least significant bit of each octet corresponds to the lowest value VlanIndex in that octet. For each VLAN, if it is mapped to this MST instance, then the bit corresponding to that VLAN is set to '1'. Each VLAN can only be mapped to one unique MST instance in the range from 1 to mSTMaxInstanceNumber. If the bit corresponding to a VLAN is changed from '1' to '0', then that VLAN will be automatically mapped to MST instance 0 by the device. |
| mSTInstanceEntry | 1.3.6.1.4.1.738.1.5.107.1.2.3.1 | not-accessible | A conceptual row containing the MST instance information. | |
| I32 mSTInstanceIndex | 1.3.6.1.4.1.738.1.5.107.1.1.2.5.1.1 | Integer32 | accessible-for-notify | An integer that uniquely identifies an MST instance from 0 to the object value of mSTMaxInstanceNumber. |
| I32 mSTInstancePriority | 1.3.6.1.4.1.738.1.5.107.1.2.3.1.7 | Integer32 | read-write | MSTI priority, in steps of 4096. |
| I32 mSTInstanceRemainingHopCount | 1.3.6.1.4.1.738.1.5.107.1.2.3.1.6 | Integer32 | read-only | The remaining hop count for this MST instance. |
| I32 mSTInstanceRootCost | 1.3.6.1.4.1.738.1.5.107.1.2.3.1.2 | Integer32 | read-only | The path cost of the root Port of this MST. This value is compared to the Root Path Cost field in received bridge PDUs. |
| I32 mSTInstanceRootPort | 1.3.6.1.4.1.738.1.5.107.1.2.3.1.3 | Integer32 | read-only | The root port of this MST. |
| I32 mSTInstanceRootPriority | 1.3.6.1.4.1.738.1.5.107.1.2.3.1.5 | Integer32 | read-only | The MST root priority. |
| mSTInstanceTable | 1.3.6.1.4.1.738.1.5.107.1.2.3 | not-accessible | This table contains MST instance information with one entry for each MST instance numbered from 0 to mSTMaxInstanceNumber. | |
| mSTInstanceVlanEditEntry | 1.3.6.1.4.1.738.1.5.107.1.1.2.6.1 | not-accessible | A conceptual row containing MST instance information in the Edit Buffer. | |
| mSTInstanceVlanEditTable | 1.3.6.1.4.1.738.1.5.107.1.1.2.6 | not-accessible | This table contains MST instance information in the Edit Buffer with one entry for each MST instance numbered from 0 to mSTMaxInstanceNumber. This table is only instantiated when the mSTRegionEditBufferStatus object has the value of acquiredBySnmp(2). | |
| mSTInstanceVlanEntry | 1.3.6.1.4.1.738.1.5.107.1.1.2.5.1 | not-accessible | A conceptual row containing the MST instance information. | |
| OCT mSTInstanceVlansMapped | 1.3.6.1.4.1.738.1.5.107.1.1.2.5.1.2 | OCTET STRING | read-only | A string of octets containing one bit per VLAN. The first octet corresponds to VLANs with VlanIndex values of 0 through 7; the second octet to VLANs 8 through 15; etc. The least significant bit of each octet corresponds to the lowest value VlanIndex in that octet. For each VLAN, if it is mapped to this MST instance, then the bit corresponding to that VLAN is set to '1'. |
| OCT mSTInstanceVlansMapped2k | 1.3.6.1.4.1.738.1.5.107.1.1.2.5.1.3 | OCTET STRING | read-only | A string of octets containing one bit per VLAN for VLANs with VlanIndex values of 1024 through 2047. The first octet corresponds to VLANs with VlanIndex values of 1024 through 1031; the second octet to VLANs 1032 through 1039; etc. The least significant bit of each octet corresponds to the lowest value VlanIndex in that octet. For each VLAN, if it is mapped to this MST instance, then the bit corresponding to that VLAN is set to '1'. |
| OCT mSTInstanceVlansMapped3k | 1.3.6.1.4.1.738.1.5.107.1.1.2.5.1.4 | OCTET STRING | read-only | A string of octets containing one bit per VLAN for VLANs with VlanIndex values of 2048 through 3071. The first octet corresponds to VLANs with VlanIndex values of 2048 through 2055; the second octet to VLANs 2056 through 2063; etc. The least significant bit of each octet corresponds to the lowest value VlanIndex in that octet. For each VLAN, if it is mapped to this MST instance, then the bit corresponding to that VLAN is set to '1'. |
| OCT mSTInstanceVlansMapped4k | 1.3.6.1.4.1.738.1.5.107.1.1.2.5.1.5 | OCTET STRING | read-only | A string of octets containing one bit per VLAN for VLANs with VlanIndex values of 3072 through 4095. The first octet corresponds to VLANs with VlanIndex values of 3072 through 3079; the second octet to VLANs 3080 through 3087; etc. The least significant bit of each octet corresponds to the lowest value VlanIndex in that octet. For each VLAN, if it is mapped to this MST instance, then the bit corresponding to that VLAN is set to '1'. |
| mSTInstanceVlanTable | 1.3.6.1.4.1.738.1.5.107.1.1.2.5 | not-accessible | This table contains MST instance information with one entry for each MST instance numbered from 0 to mSTMaxInstanceNumber. | |
| TIM mSTMaxAge | 1.3.6.1.4.1.738.1.5.107.1.3.3 | Timeout | read-only | The maximum age of Multiple 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 that this bridge is currently using. |
| I32 mSTMaxHopCount | 1.3.6.1.4.1.738.1.5.107.1.2.1 | Integer32 | read-write | The maximum number of hops for the MST region. |
| I32 mSTMaxInstanceNumber | 1.3.6.1.4.1.738.1.5.107.1.2.2 | Integer32 | read-only | The maximum MST (Multiple Spanning Tree) instance IDs that are supported by the device for the MST Protocol. |
| I32 mSTMigrationTimer | 1.3.6.1.4.1.738.1.5.107.1.3.1 | Integer32 | read-write | MST (Multiple Spanning Tree) migration timer . Determines timeout migration in seconds |
| NTF mstpNewRoot | 1.3.6.1.4.1.738.1.5.107.0.1 | This notification is the MSTP equivalent of the standard STP newRoot notification. | ||
| mSTPort | 1.3.6.1.4.1.738.1.5.107.1.4 | |||
| T/F mSTPortAdminEdgePort | 1.3.6.1.4.1.738.1.5.107.1.4.1.1.5 | TruthValue | read-write | The 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. |
| INT mSTPortAdminLinkType | 1.3.6.1.4.1.738.1.5.107.1.4.1.1.1 | INTEGER | read-write | Indicates the administrative link type configuration of a bridge port for the MST protocol. pointToPoint -- the port is administratively configured to be connected to a point-to-point link. shared -- the port is administratively configured to be connected to a shared medium. auto -- the administrative configuration of the port's link type depends on the duplex mode of the port's link. If the port's link is full-duplex, the administrative link type configuration on this port will be taken as pointTopoint(1). If the port link is half-duplex, the administrative link type configuration on this port will be taken as shared(2). This configuration of this object only takes effect when the stpxSpanningTreeType is mst(4). |
| INT mSTPortEnable | 1.3.6.1.4.1.738.1.5.107.1.4.1.1.7 | INTEGER | read-write | The enabled/disabled status of the port. |
| mSTPortEntry | 1.3.6.1.4.1.738.1.5.107.1.4.1.1 | not-accessible | An entry with port information for the MST Protocol on a bridge port. | |
| T/F mSTPortOperEdgePort | 1.3.6.1.4.1.738.1.5.107.1.4.1.1.6 | TruthValue | read-only | The operational value of the Edge Port parameter. The object is initialized to the value of dot1dStpPortAdminEdgePort and is set false(2) on reception of a BPDU. |
| INT mSTPortOperLinkType | 1.3.6.1.4.1.738.1.5.107.1.4.1.1.2 | INTEGER | read-only | Indicates the operational link type of a bridge port for the MST protocol. pointToPoint -- the port is operationally connected to a point-to-point link. shared -- the port is operationally connected to a shared medium. other -- none of the above. This object is only instantiated when the value of the stpxSpanningTreeType object is mst(4). |
| BRI mSTPortPerMstDesignatedBridge | 1.3.6.1.4.1.738.1.5.107.1.4.2.1.6 | BridgeId | read-only | |
| I32 mSTPortPerMstDesignatedCost | 1.3.6.1.4.1.738.1.5.107.1.4.2.1.5 | Integer32 | read-only | |
| OCT mSTPortPerMstDesignatedPort | 1.3.6.1.4.1.738.1.5.107.1.4.2.1.7 | OCTET STRING | read-only | The Port Identifier of the port on the MST Instance Designated Bridge for this port's segment. |
| mSTPortPerMstEntry | 1.3.6.1.4.1.738.1.5.107.1.4.2.1 | not-accessible | An entry containing the port information for the MST protocol on a port for a particular MST instance. | |
| INT mSTPortPerMstPathCost | 1.3.6.1.4.1.738.1.5.107.1.4.2.1.4 | INTEGER | read-write | The contribution of this port to the path cost of paths toward the spanning tree root that include this port. 802.1D-1990 recommends that the default value of this parameter be in inverse proportion to the speed of the attached LAN. |
| INT mSTPortPerMstPriority | 1.3.6.1.4.1.738.1.5.107.1.4.2.1.2 | INTEGER | read-write | The value of the priority field which 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 mSTPort. |
| INT mSTPortPerMstRoleValue | 1.3.6.1.4.1.738.1.5.107.1.4.2.1.1 | INTEGER | read-only | Indicates the port role on a particular MST instance for the MST protocol. disabled -- this port has no role on this MST instance. root -- this port has the role of root port on this MST instance. designated -- this port has the role of designated port on this MST instance. alternate -- this port has the role of alternate port on this MST instance. backUp -- this port has the role of backup port on this MST instance. boundary -- this port has the role of boundary port on this MST instance. |
| INT mSTPortPerMstState | 1.3.6.1.4.1.738.1.5.107.1.4.2.1.3 | INTEGER | read-only | 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 will place that port into the broken(6) state. For ports that are disabled (see mSTPortEnable), this object will have a value of disabled(1). |
| mSTPortPerMstTable | 1.3.6.1.4.1.738.1.5.107.1.4.2 | not-accessible | A table containing a list of the bridge ports for a particular MST instance. This table holds the settings. | |
| T/F mSTPortProtocolMigration | 1.3.6.1.4.1.738.1.5.107.1.4.1.1.3 | TruthValue | read-write | The protocol migration control on this port. When the value of thw stpxSpanningTreeType object is mst(4), setting true(1) to this object forces the device to try using version 2 BPDUs on this port. When the value of the stpxSpanningTreeType object is not mst(4), setting true(1) to this object has no effect. Setting false(2) to this object has no effect. This object always returns false(2) when read. |
| BIT mSTPortStatus | 1.3.6.1.4.1.738.1.5.107.1.4.1.1.4 | Bits | read-only | Indicates the operational status of the port for the MST protocol. edge -- this port is an edge port for the MST region. boundary -- this port is a boundary port for the MST region. pvst -- this port is connected to a PVST/PVST+ bridge. stp -- this port is connected to a Single Spanning Tree bridge. This object is only instantiated when the object value of stpxSpanningTreeType is mst(4). |
| mSTPortTable | 1.3.6.1.4.1.738.1.5.107.1.4.1 | not-accessible | A table containing port information for the MST Protocol on all the bridge ports existing on the system. | |
| NTF mstpTopologyChange | 1.3.6.1.4.1.738.1.5.107.0.2 | This notification is the MSTP equivalent of the standard STP topologyChange notification. | ||
| mSTRegion | 1.3.6.1.4.1.738.1.5.107.1.1 | |||
| INT mSTRegionEditBufferOperation | 1.3.6.1.4.1.738.1.5.107.1.1.1.2 | INTEGER | read-write | Indicates the operation that is performed on the Region Config Edit Buffer. other -- none of the following operations. acquire -- acquire the Edit Buffer. This operation can only be performed when the mSTRegionEditBufferStatus object has the value of released(1). After the successful execution of this action, the mSTRegionEditBufferStatus object will be changed to acquiredBySnmp(2). releaseWithForce -- release the Edit Buffer acquired by non-SNMP users with force and discard the changes in the Edit Buffer. This operation can only be performed when the mSTRegionEditBufferStatus object has the value of acquiredByNonSnmp(2). commit -- commit the changes in the Edit Buffer and release the Edit Buffer. The successful execution of this action will make the changes in the Edit Buffer effective on the device. This operation can only be performed when the mSTRegionEditBufferStatus object has the value of acquiredBySnmp(3). rollBack -- discard the changes in the Edit Buffer and release the Edit Buffer. This operation can only be performed when the mSTRegionEditBufferStatus object has the value of acquiredBySnmp(3). This object always returns other(1) when it is read. |
| INT mSTRegionEditBufferStatus | 1.3.6.1.4.1.738.1.5.107.1.1.1.1 | INTEGER | read-only | Indicates the current ownership status of the unique Region Config Edit Buffer. released -- the Edit Buffer can be acquired by any of the SNMP management stations. acquiredBySnmp -- the Edit Buffer is acquired by any of the SNMP management stations. acquiredByNonSnmp -- the Edit Buffer is acquired by the non-SNMP users managing the device. |
| mSTRegionEditControl | 1.3.6.1.4.1.738.1.5.107.1.1.1 | |||
| STR mSTRegionEditName | 1.3.6.1.4.1.738.1.5.107.1.1.2.2 | DisplayString | read-write | The MST region name in the Edit Buffer. This object is only instantiated when the mSTRegionEditBufferStatus object has the value of acquiredBySnmp(2). |
| I32 mSTRegionEditRevision | 1.3.6.1.4.1.738.1.5.107.1.1.2.4 | Integer32 | read-write | The MST region version in the Edit Buffer. This object is only instantiated when the mSTRegionEditBufferStatus object has the value of acquiredBySnmp(2). |
| STR mSTRegionName | 1.3.6.1.4.1.738.1.5.107.1.1.2.1 | DisplayString | read-only | The operational MST region name. |
| mSTRegionParameters | 1.3.6.1.4.1.738.1.5.107.1.1.2 | |||
| I32 mSTRegionRevision | 1.3.6.1.4.1.738.1.5.107.1.1.2.3 | Integer32 | read-only | The operational MST region version. |
| mSTTimers | 1.3.6.1.4.1.738.1.5.107.1.3 | |||
| I32 mSTTxHoldCount | 1.3.6.1.4.1.738.1.5.107.1.3.2 | Integer32 | read-write | MST (Multiple Spanning Tree) Tx Hold Counter |
| prvtMSTMib | 1.3.6.1.4.1.738.1.5.107 | The MIB module for managing 802.1s Multiple Spanning Tree Protocol (MSTP). | ||
| prvtMSTNotifications | 1.3.6.1.4.1.738.1.5.107.0 | |||
| prvtMSTObjects | 1.3.6.1.4.1.738.1.5.107.1 |
RFC description
Manages 802.1s Multiple Spanning Tree Protocol (MSTP) for advanced bridge switching.
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