SWITCH-MSTP-MIB: View SNMP OID List / Download MIB

The MIB for Multiple Spanning Tree Protocol.

Becoming the new root of the Spanning Tree in the CIST or in any MSTI.The trap is sent by a bridge soon after its election as the new root Port.

The root Port of the Spanning Tree changed in the CIST or in any MSTI. The trap is sent by a bridge soon after its election as the new root Port.

A rcMstpTopologyChange trap is sent by a bridge when any of its configured ports in any instance (CIST or MSTI) transits from Learning state to Forwarding state, or from Forwarding state to Blocking state.

A rcMstpLoopGuardStateChange trap is sent by a bridge when the root guard state of any of its configured ports in any instance (CIST or MSTI) changed

A rcMstpLoopGuardStateChange trap is sent by a bridge when the loop guard state of any of its configured ports in any instance (CIST or MSTI) changed

The administrative value of the bridge. A value of TRUE(1) indicates the bridge should enable stp. A value of FALSE(2) indicates the bridge should disable stp.

The maximum number of hops for a particular Spanning Tree instance. It defines the initial value of remainingHops for MSTI information generated at the boundary of an MSTI region. This value is used only if this bridge is the CIST Regional Root and/or the MSTI Regional Root for one or more Multiple Spanning Tree instances.

An indication of which Spanning Tree Protocol the Bridge supports . The bit nonStp(0) indicates, the Bridge doesn't support any Spanning Tree Protocol. The bit 'dot1d1998(1)' indicates the Spanning Tree Protocol specified in IEEE 802.1D-1998, 'dot1w(2)' indicates the Rapid Spanning Tree Protocol specified in IEEE Std 802.1w, 'dot1d2004(3)' indicates IEEE Std 802.1D-2004 and 'dot1s(4)'means MSTP IEEE Std 802.1s. When the bridge supprts a non-listed vesrion, the bit unknown(15) should be set. Bits: 'dot1w': 2, 'dot1s': 4, 'dot1q': 5, 'unknown': 15, 'dot1d2004': 3, 'nonStp': 0, 'dot1d1998': 1.

This object is relevant if the Bridges can supply a number of versions of STP. For GET operation this object reflects the mode in which the Bridge works currently. If the Bridge works currently in the version, not listed here, the value unknown(15) should be returned. For SET operation the value unknown(15), forceNonStp(0) and forceDot1w(2) must be rejected. Another value may be rejected too if the Bridge does not support correspond mode (see rcMstpBridgeVersionSupported). Enumeration: 'forceDot1w': 2, 'unknown': 15, 'forceLegacyDot1d': 1, 'autoDot1s': 3, 'forceNonStp': 0.

The format selector value of the Configuration Identifier. This has a value of 0 to indicate the format specified in the IEEE 802.1s standard. Other number is not accepted.

The region name identifies the MST region and is used as one of the inputs in the computation of the MST Identifier.

Set region name, the inputs will be actived after active operation. The region name identifies the MST region and is used as one of the inputs in the computation of the MST Identifier. If and only if the rcMstpBridgeRegionEditBufferOperation is set active, the object will be actived for region configuration along with the other region configuration parameters (rcMstpBridgeRegionEditRevLevel, rcMstpXstInstanceEditVlansMap).

This object identifies the MST revision that identifies the MST region and is used as one of the inputs in the computation of the MST configuration Identifier.

Set revision level, the inputs will be actived after active operation. This object identifies the MST revision that identifies the MST region and is used as one of the inputs in the computation of the MST configuration Identifier. If and only if the rcMstpBridgeRegionEditBufferOperation is set active the object will active for region configuration along with other two region configuration parameters (rcMstpBridgeRegionEditName , rcMstpXstInstanceEditVlansMap).

The Configuration Digest derived from MST Configuration Table.

The Bridge Identifier of the current CIST Root.

The CIST path cost from the bridge to the CIST Root.

For diameter, specify the maximum number of switches between any two end stations, only for CIST.

Indicates the operation that is performed on the Region Config Edit Buffer. other(1) -- none of the following operation. active(2) -- commit changes in the Edit Buffer. The successful operation of this action will make the changes effective on the device. If the object is set active, the rcMstpBridgeRegionEditName , rcMstpBridgeRegionEditRevLevel and rcMstpXstInstanceEditVlansMap, will be copied from 'edit buffer' to the 'operate buffer', then the three object will be activated at the same time. This object always returns other(1) when it is read. Enumeration: 'active': 2, 'other': 1.

Specifies the destination MAC address of the provider network STP PDUs.

Mstp port table

Entry of mstp port table

A unique value, greater than zero, for each Port. The value for each interface sub-layer must remain constant at least from one re-initialization of the entity's network management system to the next re-initialization.

The enabled/disabled status of the port. Set TRUE(1) ,the stp status of the port will be enabled, otherwise it will be disabled.

The enabled/disabled status of the port. The value of TRUE(1) means the stp status of the port is enabled, otherwise it is disabled.

The administrative edged port status of this port. A value of forceTrue(0) indicates that this port should always be treated as edged port. A value of forceFalse(1) indicates that this port should not be treated as edged port. A value of auto(2) indicates that this port is considered to be an edged port if MSTP detect that this port is connected to the terminals. Enumeration: 'forceTrue': 0, 'forceFalse': 1, 'auto': 2.

Ports with this object set as false(2) do not participate in any STP computation; they are always in Forwarding state, do not send any BPDU and all BPDUs received on these Ports will be discarded. Such ports are used to define the STP termination point of the LAN.

port mstp enable operate status Enumeration: 'enable': 1, 'disable': 2.

port mstp rootport protect enable status Enumeration: 'enable': 1, 'disable': 2.

Received Topology Change Notification (TCN) Messages.

Received Configuration BPDUs.

Received RST BPDUs.

Received MST BPDUs.

Transmitted Topology Change Notification (TCN) Messages.

Transmitted Configuration BPDUs.

Transmitted RST BPDUs.

Transmitted MST BPDUs.

Clear port statistics.

Port mstp loop protect enable status. If a port in some instance did not received any bpdu in three times of hello-time, it will age and reselect. If there was no link fault in the tree but other reason lead to bpdu loss, reselect would create a loopback in the topology. To prevent this, a loop guard enabled port will not age in any case Enumeration: 'enable': 1, 'disable': 2.

Bpdu filter status on edge port, when it is enabled,the edge port drop the received bpdu packets, and does not send any bpdu packet.

the partner mstp mode of this port. Enumeration: 'unknown': 0, 'stp': 1, 'rstp': 2, 'mstp': 3.

Mstp Instance vlan table

Entry of mstp Instance vlan table

A unique value identifies an instance. The entry of this table with index 0 always represents the CIST instance.

Each octet within this value specifies a set of eight vlans, with the first octet specifying vlan 1 through 8, the second octet specifying vlan 9 through 16, etc. Within each octet, the most significant bit represents the lowest numbered vlan, and the least significant bit represents the highest numbered vlan. Thus, each vlan is represented by a single bit within the value of this object. If that bit has a value of '1', then that vlan is included in the set of vlans; the vlan is not included if its bit has a value of '0'.

Mstp Instance vlan edit table

Mstp Instance vlan edit table

The MST instance ID, the value of which is in the range from 0 to 4095. The instances of this table entry with rcMstpXstInstanceEditId of zero is automatically created by the device and can not modified.

Each octet within this value specifies a set of eight vlans, with the first octet specifying vlan 1 through 8, the second octet specifying vlan 9 through 16, etc. Within each octet, the most significant bit represents the lowest numbered vlan, and the least significant bit represents the highest numbered vlan. Thus, each vlan is represented by a single bit within the value of this object. If that bit has a value of '1' then that vlan is included in the set of vlans; the vlan is not included if its bit has a value of '0'. If valn map is overlap with another Instance, the map will not success. If and only if the rcMstpXstRegionEditBufferOperation is set active, the object will active for region configuration along with other two region configuration parameters (rcMstpRegionEditName , rcMstpRegionEditRevLevel ).

This object controls the creation and deletion of a row in rcMstpXstInstanceEditTable. When creating an entry in this table, 'createAndGo' method is used and the value of this object is set to 'active'. Deactivation of an 'active' entry is not allowed. When deleting an entry in this table, 'destroy' method is used. Once a row becomes active, value in any other column within such a row may be modified. When a row is active, setting the instance of rcMstpXstInstanceEditVlansMap for the MST instance to the value of zero length can not be allowed.

Mstp Instance table

Entry of mstp Instance table

The MST instance ID, the value of which is in the range from 0 to 4095. The instances of this table entry with rcMstpXstId of zero is automatically created by the device and can not modified.

Bridge ID of the corresponding Spanning Tree instance.

The unique 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 cost of the path to the root of the corresponding Spanning Tree instance as seen from this bridge.

The port number of the port which offers the lowest cost path from this bridge to the root bridge for the corresponding Spanning Tree instance.

Master port of the corresponding Spanning Tree instance. 0 for CIST.

The elapsed time, in units of hundredths of a second, since the last time a topology change was detected by the corresponding Spanning Tree instance (specifically, the elapsed time since the tcWhile timer for any port was non-zero).

The total number of topology changes detected by the corresponding Spanning Tree instance since the management entity was last reset or initialized(specifically, the count of times that the tcWhiletimer for any port has been non-zero).

True(1) if the tcWhile timer is non-zero for any port for the corresponding Spanning Tree instance, false(2) otherwise.

Mstp Instance config table

Entry of mstp Instance config table

The MST instance ID, the value of which is in the range from 0 to 4095. The instances of this table entry with rcMstpCfgXstId of zero is automatically created by the device and can not modified.

Bridge priority, in steps of 4096.

To configure the switch to become the root bridge for corresponding Spanning Tree instance.

To configure the switch to become the backup root bridge for corresponding Spanning Tree instance.

Mstp Instance port table

Entry of mstp Instance port table

The MST instance ID, the value of which is in the range from 0 to 4095. The instances of this table entry with rcMstpXstPortXstId of zero is automatically created by the device and can not modified.

A unique value, greater than zero, for each Port. The value for each interface sub-layer must remain constant at least from one re-initialization of the entity's network management system to the next re-initialization.

The port's current state in the corresponding Spanning Tree instance as defined by application of the Multiple Spanning Tree Protocol. This state controls what action a port takes on reception of a frame. For ports which are administratively disabled this object will have a value of disabled(0). Enumeration: 'disabled': 0, 'discarding': 1, 'forwarding': 3, 'learning': 2, 'unknown': 4.

Indicates this port's role on the corresponding Spanning Tree instance. disabled(1) -- this port has no role on this MST instance. alternate(2) -- this port has the role of alternate port on this MST instance. backup(3) -- this port has the role of backup port on this MST instance. root(4)-- this port has the role of root port on this MST instance. designated(5) -- this port has the role of designated port on this MST instance. master(6) -- this port has the role of master port on this MST instance. unknown(7) - unknown reason Enumeration: 'unknown': 7, 'alternate': 2, 'designated': 5, 'disabled': 1, 'master': 6, 'root': 4, 'backup': 3.

The unique Bridge Identifier of the Bridge recorded as the Root of the corresponding Spanning Tree in the Configuration BPDUs transmitted by the Designated Bridge for the segment to which the port is attached.

External Root Cost for CIST. the value is always 0, for MSTI.

Regional Root of the corresponding Spanning Tree.

Port internal root cost of the corresponding Spanning Tree.

The Bridge Identifier of the bridge which this port considers to be the Designated Bridge for this port's segment.

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

Port Internal path cost of the corresponding Spanning Tree.

The root guard state of port in special instance. 'yes' means a port was enabled root guard and received BPDU that include higher priority than the current root priority in the instance. To prevent attack, port in this instance turn discarding. Enumeration: 'yes': 2, 'no': 1.

The loop guard state of port in special instance. 'yes' means an alternate or root port was enabled loop guard and did not received any BPDU int three times of hello-time in the instance. Enumeration: 'yes': 2, 'no': 1.

Mstp Instance port config table

Entry of mstp Instance port config table

The MST instance ID, the value of which is in the range from 0 to 4095. The instances of this table entry with rcMstpXstPortCfgXstId of zero is automatically created by the device and can not modified.

A unique value, greater than zero, for each Port. The value for each interface sub-layer must remain constant at least from one re-initialization of the entity's network management system to the next re-initialization.

Port priority, in steps of 16.

The administratively assigned value for the contribution of this port to the path cost of paths towards the root of the corresponding Spanning Tree instance. The value 0 means, that the cost will be selected automatically.