PRVT-MST-MIB: View SNMP OID List / Download MIB

The MIB module for managing 802.1s Multiple Spanning Tree Protocol (MSTP).

This notification is the MSTP equivalent of the standard STP newRoot notification.

This notification is the MSTP equivalent of the standard STP topologyChange notification.

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. Enumeration: 'released': 1, 'acquiredBySnmp': 2, 'acquiredByNonSnmp': 3.

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. Enumeration: 'releaseWithForce': 3, 'commit': 4, 'acquire': 2, 'rollBack': 5, 'other': 1.

The operational MST region name.

The MST region name in the Edit Buffer. This object is only instantiated when the mSTRegionEditBufferStatus object has the value of acquiredBySnmp(2).

The operational MST region version.

The MST region version in the Edit Buffer. This object is only instantiated when the mSTRegionEditBufferStatus object has the value of acquiredBySnmp(2).

This table contains MST instance information with one entry for each MST instance numbered from 0 to mSTMaxInstanceNumber.

A conceptual row containing the MST instance information.

An integer that uniquely identifies an MST instance from 0 to the object value of mSTMaxInstanceNumber.

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'.

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'.

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'.

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'.

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).

A conceptual row containing MST instance information in the Edit Buffer.

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.

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.

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.

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.

The maximum number of hops for the MST region.

The maximum MST (Multiple Spanning Tree) instance IDs that are supported by the device for the MST Protocol.

This table contains MST instance information with one entry for each MST instance numbered from 0 to mSTMaxInstanceNumber.

A conceptual row containing the MST instance information.

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.

The path cost of the root Port of this MST. This value is compared to the Root Path Cost field in received bridge PDUs.

The root port of this MST.

The unique MST Designated Bridge Identifier.

The MST root priority.

The remaining hop count for this MST instance.

MSTI priority, in steps of 4096.

MST (Multiple Spanning Tree) migration timer . Determines timeout migration in seconds

MST (Multiple Spanning Tree) Tx Hold Counter

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.

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.

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.

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.

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.

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.

A table containing port information for the MST Protocol on all the bridge ports existing on the system.

An entry with port information for the MST Protocol on a bridge port.

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). Enumeration: 'shared': 2, 'pointToPoint': 1, 'auto': 3.

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). Enumeration: 'shared': 2, 'other': 3, 'pointToPoint': 1.

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.

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). Bits: 'boundary': 1, 'edge': 0, 'stp': 3, 'pvst': 2.

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.

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.

The enabled/disabled status of the port. Enumeration: 'disabled': 2, 'enabled': 1.

A table containing a list of the bridge ports for a particular MST instance. This table holds the settings.

An entry containing the port information for the MST protocol on a port for a particular MST instance.

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. Enumeration: 'backUp': 5, 'alternate': 4, 'designated': 3, 'disabled': 1, 'boundary': 6, 'root': 2.

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.

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). Enumeration: 'listening': 3, 'disabled': 1, 'broken': 6, 'learning': 4, 'forwarding': 5, 'blocking': 2.

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.

The Port Identifier of the port on the MST Instance Designated Bridge for this port's segment.