ALCATEL-IND1-VLAN-STP-MIB: View SNMP OID List / Download MIB

The Spanning Tree parameters for Vlans and ports that support the Spanning Tree protocol. Large percentage of this group is lifted from rfc1493. Implementation of this group is mandatory for AOS products. The right to make changes in specification and other information contained in this document without prior notice is reserved. No liability shall be assumed for any incidental, indirect, special, or consequential damages whatsoever arising from or related to this document or the information contained herein. Vendors, end-users, and other interested parties are granted non-exclusive license to use this specification in connection with management of the products for which it is intended to be used. Copyright (C) 1995-2006 Alcatel-Lucent ALL RIGHTS RESERVED WORLDWIDE

Branch For VLAN STP MIB Subsystem Notifications.

The NewRoot trap indicates that the bridge has become the new root for this Spanning Tree instance; the trap is sent by a bridge soon after its election as the new root, upon expiration of the Topology Change Timer immediately subsequent to its election.

A RootPortChange trap is sent for a Spannnig Tree instance by a bridge when its root port has changed. The root port is the port which offers the lowest cost path from this bridge to the root bridge.

Branch For Spanning Tree Managed Objects.

A list of Spanning Tree instances on this bridge.

A STP instance entry. Either one multiple spanning tree instance, or a per VLAN instance.

The mode of the Spanning Tree Protocol activated on this bridge.Only the instances matching the current value of vStpBridgeMode are active Enumeration: 'flat': 1, 'onePerVlan': 2.

The Spanning Tree number identifying this instance. In 1x1 mode the accepted range is 1-4095 and corresponds to the VLAN. In Flat mode the range is 0-4095 and corresponds to the Spanning tree instance.

The version of the Spanning Tree Protocol implemented for this instance. ieeeSTP represents standard STP of 802.1d 1998. ieeeRSTP stands for Rapid STP. Multiple STP or MSTP (802.1s) is only supported in flat mode, using instance 0. If future versions of the IEEE Spanning Tree Protocol are released that are incompatible with the current version, a new value will be defined. Enumeration: 'ieeeSTP': 3, 'unknown': 1, 'decLb100': 2, 'ieeeMSTP': 5, 'ieeeRSTP': 4.

The value of the write-able portion of the Bridge ID, i.e., the first two octets of the (8 octet long) Bridge ID (vStpBridgeAddress). The other (last) 6 octets of the Bridge ID are recommended to be the numerically smallest MAC address of all ports that belong to this Spanning tree instance.

The bridge identifier of this spanning tree instance as determined by the Spanning Tree Protocol.

The time (in hundredths of a second) since the last time a topology change was detected by this spanning tree instance.

The total number of topology changes detected by this spanning tree instance since the management entity was last reset or initialized.

The bridge identifier of the root of the spanning tree as determined by the Spanning Tree Protocol as executed by this instance. This value is used as the Root Identifier parameter in all Configuration Bridge PDUs originated by this node for this instance.

The cost of the path to the root as seen from this bridge for this spanning tree instance.

The ifindex of the port which offers the lowest cost path from this bridge to the root bridge for this spanning tree instance.

The cost of the path to the root through the next best root port as seen from this bridge for this spanning tree instance.

The ifindex of the next port which offers the lowest cost path from this bridge to the root bridge for this spanning tree instance. This port will become root port if the actual root port goes down.

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 that this spanning tree instance is currently using.

The amount of time between the transmission of Configuration bridge PDUs by this instance on any port when it 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 instance is currently using.

This time value determines the interval length during which no more than two Configuration bridge PDUs shall be transmitted by this instance, in units of hundredths of a second.

This time value, measured in units of hundredths of a second, 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 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 instance is currently using, in contrast to vStpBridgeForwardDelay which is the value that this instance 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 vStpBridgeHelloTime. 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 is attempted to a value which 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 is attempted to a value which 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 vStpBridgeMaxAge. 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 is attempted to a value which is not a whole number of seconds.

When this field is enabled, the BPDUs received for this instance to be switched when spanning tree is disabled. When the field is disabled, the BPDUs received on this instance will be dropped if spanning tree is disabled. Enumeration: 'disabled': 2, 'enabled': 1.

The bridge identifier of the regional CIST root bridge of the spanning tree as determined by the Spanning Tree Protocol. This value is only used in flat mode

The cost of the path to the cist regional root. This value is only used in flat mode

The Vlan number of this instance. Only valid in 1x1 mode.

The Mst instance. Only valid in Flat Mode.

The current mode of the Spanning Tree Protocol this instance is a part of. Enumeration: 'flat': 1, 'onePerVlan': 2.

The current enabled status for this instance of the Auto Vlan containment feature which controls path costs in MSTP. Enumeration: 'enable': 1, 'disable': 2.

A limit controlling the number of PDUs transmitted per port per second for this instance.

The enabled/disabled status of the STP instance; applicable only to per VLAN Spanning Tree instances. Default values are enabled(1) for per VLAN instances and notapplicable(0) for the rest. Enumeration: 'disabled': 2, 'notapplicable': 0, 'enabled': 1.

A table that contains port-specific information for the Spanning Tree Protocol.

A list of information maintained for every Spanning Tree instance by every port about the Spanning Tree Protocol state for that port.

The ifindex of the port for which this entry contains Spanning Tree Protocol management information.

The priority of this port which was used originally as part of the port ID specified in 802.1D.

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. For ports which are disabled (see vStpInsPortEnable), this object will have a value of disabled(1). AOS does not support the broken(6) state as defined in RFC1493. Enumeration: 'disabled': 1, 'learning': 4, 'forwarding': 5, 'blocking': 2, 'listening': 3.

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

The contribution of this port to the path cost of paths towards the spanning tree root which 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 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 path cost of the Designated Port of the segment connected to this port. This value is compared to the Root Path Cost field in received bridge PDUs.

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

The priority portion of the port ID on the Designated Bridge for this port's segment.

The Port Identifier of the port on the Designated Bridge for this port's segment (defined in IEEE 802.1D-1998: Section 8.5.5.7).

The number of times this port has transitioned from the Learning state to the Forwarding state.

The port's manual mode for this spanning tree instance. This mode defines the way the state of the port(vStpPortState) is managed. The mode can be dynamic (1) (managed by the Spanning Tree), or manual (blocking(2) or forwarding(3)). In manual mode, the port is not involved in the Spanning tree algorithm computation. Enumeration: 'forwarding': 3, 'blocking': 2, 'no': 1.

The port's role for this spanning tree instance. Enumeration: 'backup': 4, 'alternate': 3, 'designated': 2, 'disabled': 5, 'master': 6, 'root': 1.

The ifindex of the associated primary port for this spanning tree instance. This information is only available if the port role is backup (vStpInsPortRole = 4)

The administrative port's connection type for this spanning tree instance. This parameter is used to optimise the fast Spanning Tree (6.4.3 of P802.1w). The default value is nopointtopoint(1). The value pointtopoint(2) forces the port to be treated as if it is connected through a point-to-point LAN segment to another switch. Set this parameter to autopointtopoint(3) makes the point-to-point status to be determined automatically by the MAC entity. The value edgeport(4) indicates that the port is considered to be an edge port (18.3.3 of P802.1t). Enumeration: 'edgeport': 4, 'nopointtopoint': 1, 'autopointtopoint': 3, 'pointtopoint': 2.

The operational port's connection type for this spanning tree instance.This parameter is used to optimise the fast Spanning Tree. Enumeration: 'nonsignificant': 3, 'edgeport': 4, 'nopointtopoint': 1, 'pointtopoint': 2.

The bridge identifier of the regional CIST root bridge as determined by the Spanning Tree Protocol. This value is only used in flat mode

The cost of the path to the cist regional root. This value is only used in flat mode

The value that is used by the port 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 is attempted to a value which 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 is attempted to a value which is not a whole number of seconds.

The operational port's connection type for this spanning tree instance.This parameter is used to optimise the fast Spanning Tree. Enumeration: 'internal': 2, 'external': 1, 'unkown': 3.

Upon intiliazation of the port, this will be the default setting of the operational edge status of the port. May change depending on AutoEdge setting. Will not change status after link is up on port. Enumeration: 'enable': 1, 'disable': 2.

When enabled STP will determine the operational edge status of the port. May overwrite the AdminEdge status, if enabled. If disabled, port will remain as the AdminEdge state. Enumeration: 'enable': 1, 'disable': 2.

When enabled, this port will not be selected as the Root port and will be selected as Alternate after the Root port is selected. Enumeration: 'enable': 1, 'disable': 2.

When set to enable, this port will not propogate any topology changes or notifications to other ports. Is used to prevent bridges outside of a core network from causing flushes within the core network. Enumeration: 'enable': 1, 'disable': 2.

The mode of the Spanning Tree Protocol activated on this bridge. Enumeration: 'flat': 1, 'onePerVlan': 2.

The bridge identifier as determined by the Spanning Tree Protocol.

This object indicates the time of the most recent change to the vStpBridge group vStpMstRegionTable

This object describes what the default path costs the bridge gives to ports upon link up. thirtyTwoBit designates 32 bit path cost value range in accordance with IEEE 802.1w standard and newer. Auto designates 16 bit path cost value range in accordance to IEEE 802.1d 1998 standard, except when the bridge is operating in MSTP protocol when 32 bit values will be in effect Enumeration: 'auto': 2, 'thrityTwoBit': 1.

The current enabled status for the whole bridge of the Auto Vlan containment feature which controls path costs in MSTP. Enumeration: 'enable': 1, 'disable': 2.

When enabled, Spanning Tree can interoperate with Cisco switch in PVST+ mode. When disabled, Spanning Tree is back to normal 1x1 mode. Enumeration: 'enable': 1, 'disable': 2.

This table contains Region-specific information for the spanning tree protocol 802.1s

A Region entry.

The 802.1s spec. defines only 1 region. However, for possible future enhancements it may be desired to have the ability to configure more than one region on the the same bridge.

The Mst format selector. When 0, this field indicates the use of the following components as specified in 802.1s standard; config name, revision level, and config digest.

The Mst Region identifier, a 16 octet field of type HMAC-MD5. It is an encoding of the VID to MSTID table and sent in the MSTP BPDU to allow bridges to recognize their neighbors region.

Name of the region defined by the 802.1s standard

Revision level of the region defined by the 802.1s standard

List of Mst instances configured in this region. Each Mst Instance will be displayed in a seperated by comas. (maximum 64 Msti)

Number of the CIST instance. Always 0 in this release and limited to one region

The value that all bridges use for MaxHops in the region when this bridge is acting as the root.

This table contains Mst Instance-specific information for the spanning tree protocol 802.1s

A Mst Instance entry.

The Mst Instance number identfies a Spanning Tree instance and its vlan range assocaited. To create a new instance a rowStatus is required. The instance 0 is reserved for the CIST. See also the vStpTable. By default all vlans are associated to the CIST instance 0

An optional 32 character string assignable by the operator.

A string of 4096 bits forming a bitmap which defines a set of VLANs to be added to the membership of the MSTI.

A string of 4096 bits forming a bitmap which defines a set of VLANs to revoke membership from the MSTI.

A string of 4096 bits forming a bitmap which defines the set of VLANs that are members of this MSTI.

This object is the RowStatus (locking flag) for creating or deleting Mst Instance objects

This table displays the VLAN to MSTI assignment.

A Mst Instance entry.

The VLAN number identifying this instance. Valid range from 1 to 4095.

The Msti number assigned to this vlan. All VLANs by default are placed in MSTI 0. An MSTI must exist for the assignment to occur.

A table that contains protocol independant port-specific information for the Spanning Tree Protocol.

A list of information maintained for every Spanning Tree instance by every port about the protocol independant state for that port.

The ifindex of the port for which this entry contains Spanning Tree Protocol management information.

The status of whether this port is interacting with a 10 gigabit link to a OS8800 switch. Enumeration: 'enable': 1, 'disable': 2.

Configure a port what type of BPDU to use when PVST+ mode is enabled: Auto: Use IEEE BPDUs until a PVST+ BPDU is detected. Enable: Use PVST+ BPDUs. Disable: Use IEEE BPDUs. Enumeration: 'auto': 1, 'enable': 2, 'disable': 3.

The status of whether the type of PVST+ BPDU is on or off for this port. Enumeration: 'on': 1, 'off': 2.

The state of Ring rapid spanning tree on a global level. When the RRSTP is disabled gobally, all the rings get disabled. When the RRSTP is enabled globally, the rings can be individually configured to be enabled or disabled. Enumeration: 'enable': 1, 'disable': 2.

A table that contains RRSTP ring configuration related information.

A list of information maintained for each RRSTP ring about ports that are part of the ring.

The identifier of the RRSTP ring.

The interface index of first port that belongs to the ring.

The interface index of second port that belongs to the ring.

The VLAN tag applied to the ring with which RRSTP ring frames shall be tagged. Valid range from 1 to 4094

The state of the ring. A ring can be created but can be made active or inactive. Enumeration: 'enable': 1, 'disable': 2.

This object is the RowStatus (locking flag) for creating or deleting RRSTP Ring

Branch For Spanning Tree Conformance Information.

Branch For Spanning Tree Units Of Conformance.

Collection of objects for management of Spanning Tree instances.

Collection of objects for management of Spanning Tree port instances.

The Spanning Tree Notification Group.

Collection of objects for management of Spanning Tree mst instances.

Collection of objects for management of Spanning Tree assignment vlan to msti instances.

Collection of objects for management of Spanning Tree mst region instances.

Collection of objects for management of protocol indepentant port configuration.

Collection of objects maintained for each RRSTP ring about ports that are part of the ring.

State of Ring rapid spanning tree on a global level

Collection of objects maintained for VLAN STP configuration.

Branch For Spanning Tree Compliance Statements.

Compliance statement for Spanning Tree.