ATI-BRIDGE-MIB

File: ATI-BRIDGE-MIB.mib (56260 bytes)

Imported modules

RFC1155-SMI RFC-1212 RFC-1215

Imported symbols

Counter TimeTicks enterprises
OBJECT-TYPE TRAP-TYPE

Defined Types

MacAddress  
STRING Size(6)    

BridgeId  
STRING Size(8)    

Timeout  
INTEGER    

AtbrBaseEntry  
SEQUENCE    
  atbrBaseLanId INTEGER
  atbrBaseBridgeAddress MacAddress
  atbrBaseNumPorts INTEGER
  atbrBaseType INTEGER

AtbrBasePortEntry  
SEQUENCE    
  atbrBasePortLanId INTEGER
  atbrBasePort INTEGER
  atbrBasePortIfIndex INTEGER
  atbrBasePortCircuit OBJECT IDENTIFIER
  atbrBasePortDelayExceededDiscards Counter
  atbrBasePortMtuExceededDiscards Counter

AtbrStpEntry  
SEQUENCE    
  atbrStpLanId INTEGER
  atbrStpProtocolSpecification INTEGER
  atbrStpPriority INTEGER
  atbrStpTimeSinceTopologyChange TimeTicks
  atbrStpTopChanges Counter
  atbrStpDesignatedRoot BridgeId
  atbrStpRootCost INTEGER
  atbrStpRootPort INTEGER
  atbrStpMaxAge Timeout
  atbrStpHelloTime Timeout
  atbrStpHoldTime INTEGER
  atbrStpForwardDelay Timeout
  atbrStpBridgeMaxAge Timeout
  atbrStpBridgeHelloTime Timeout
  atbrStpBridgeForwardDelay Timeout

AtbrStpPortEntry  
SEQUENCE    
  atbrStpPortLanId INTEGER
  atbrStpPort INTEGER
  atbrStpPortPriority INTEGER
  atbrStpPortState INTEGER
  atbrStpPortEnable INTEGER
  atbrStpPortPathCost INTEGER
  atbrStpPortDesignatedRoot BridgeId
  atbrStpPortDesignatedCost INTEGER
  atbrStpPortDesignatedBridge BridgeId
  atbrStpPortDesignatedPort STRING
  atbrStpPortForwardTransitions Counter

AtbrTpEntry  
SEQUENCE    
  atbrTpLanId INTEGER
  atbrTpLearnedEntryDiscards Counter
  atbrTpAgingTime INTEGER

AtbrTpFdbEntry  
SEQUENCE    
  atbrTpFdbLanId INTEGER
  atbrTpFdbAddress MacAddress
  atbrTpFdbPort INTEGER
  atbrTpFdbStatus INTEGER

AtbrTpPortEntry  
SEQUENCE    
  atbrTpPortLanId INTEGER
  atbrTpPort INTEGER
  atbrTpPortMaxInfo INTEGER
  atbrTpPortInFrames Counter
  atbrTpPortOutFrames Counter
  atbrTpPortInDiscards Counter

AtbrStaticEntry  
SEQUENCE    
  atbrStaticLanId INTEGER
  atbrStaticAddress MacAddress
  atbrStaticReceivePort INTEGER
  atbrStaticAllowedToGoTo STRING
  atbrStaticStatus INTEGER

Defined Values

alliedTelesyn 1.3.6.1.4.1.207
OBJECT IDENTIFIER    

mibObject 1.3.6.1.4.1.207.8
OBJECT IDENTIFIER    

switchMib 1.3.6.1.4.1.207.8.5
OBJECT IDENTIFIER    

atiBridgeMib 1.3.6.1.4.1.207.8.5.10
OBJECT IDENTIFIER    

atbrBase 1.3.6.1.4.1.207.8.5.10.1
OBJECT IDENTIFIER    

atbrStp 1.3.6.1.4.1.207.8.5.10.2
OBJECT IDENTIFIER    

atbrSr 1.3.6.1.4.1.207.8.5.10.3
OBJECT IDENTIFIER    

atbrTp 1.3.6.1.4.1.207.8.5.10.4
OBJECT IDENTIFIER    

atbrStatic 1.3.6.1.4.1.207.8.5.10.5
OBJECT IDENTIFIER    

atbrBaseTable 1.3.6.1.4.1.207.8.5.10.1.1
Table of basic bridge information.
OBJECT-TYPE    
  SEQUENCE OF  
    AtbrBaseEntry

atbrBaseEntry 1.3.6.1.4.1.207.8.5.10.1.1.1
An entry in the atbrBaseTable.
OBJECT-TYPE    
  AtbrBaseEntry  

atbrBaseLanId 1.3.6.1.4.1.207.8.5.10.1.1.1.1
This object uniquely identifies the lan or emulated lan.
OBJECT-TYPE    
  INTEGER  

atbrBaseBridgeAddress 1.3.6.1.4.1.207.8.5.10.1.1.1.2
The MAC address used by this bridge when it must be referred to in a unique fashion. It is recommended that this be the numerically smallest MAC address of all ports that belong to this bridge. However it is only required to be unique. When concatenated with atbrStpPriority a unique BridgeIdentifier is formed which is used in the Spanning Tree Protocol.
OBJECT-TYPE    
  MacAddress  

atbrBaseNumPorts 1.3.6.1.4.1.207.8.5.10.1.1.1.3
The number of ports controlled by this bridging entity.
OBJECT-TYPE    
  INTEGER  

atbrBaseType 1.3.6.1.4.1.207.8.5.10.1.1.1.4
Indicates what type of bridging this bridge can perform. If a bridge is actually performing a certain type of bridging this will be indicated by entries in the port table for the given type.
OBJECT-TYPE    
  INTEGER unknown(1), transparent-only(2), sourceroute-only(3), srt(4)  

atbrBasePortTable 1.3.6.1.4.1.207.8.5.10.1.4
A table that contains generic information about every port that is associated with this bridge. Transparent, source-route, and srt ports are included.
OBJECT-TYPE    
  SEQUENCE OF  
    AtbrBasePortEntry

atbrBasePortEntry 1.3.6.1.4.1.207.8.5.10.1.4.1
A list of information for each port of the bridge.
OBJECT-TYPE    
  AtbrBasePortEntry  

atbrBasePortLanId 1.3.6.1.4.1.207.8.5.10.1.4.1.1
This object uniquely identifies the lan or emulated lan.
OBJECT-TYPE    
  INTEGER  

atbrBasePort 1.3.6.1.4.1.207.8.5.10.1.4.1.2
The port number of the port for which this entry contains bridge management information.
OBJECT-TYPE    
  INTEGER 1..65535  

atbrBasePortIfIndex 1.3.6.1.4.1.207.8.5.10.1.4.1.3
The value of the instance of the ifIndex object, defined in MIB-II, for the interface corresponding to this port.
OBJECT-TYPE    
  INTEGER  

atbrBasePortCircuit 1.3.6.1.4.1.207.8.5.10.1.4.1.4
For a port which (potentially) has the same value of atbrBasePortIfIndex as another port on the same bridge, this object contains the name of an object instance unique to this port. For example, in the case where multiple ports correspond one- to-one with multiple X.25 virtual circuits, this value might identify an (e.g., the first) object instance associated with the X.25 virtual circuit corresponding to this port. For a port which has a unique value of atbrBasePortIfIndex, this object can have the value { 0 0 }.
OBJECT-TYPE    
  OBJECT IDENTIFIER  

atbrBasePortDelayExceededDiscards 1.3.6.1.4.1.207.8.5.10.1.4.1.5
The number of frames discarded by this port due to excessive transit delay through the bridge. It is incremented by both transparent and source route bridges.
OBJECT-TYPE    
  Counter  

atbrBasePortMtuExceededDiscards 1.3.6.1.4.1.207.8.5.10.1.4.1.6
The number of frames discarded by this port due to an excessive size. It is incremented by both transparent and source route bridges.
OBJECT-TYPE    
  Counter  

atbrStpTable 1.3.6.1.4.1.207.8.5.10.2.1
Table of bridge spanning tree information.
OBJECT-TYPE    
  SEQUENCE OF  
    AtbrStpEntry

atbrStpEntry 1.3.6.1.4.1.207.8.5.10.2.1.1
An entry in the atbrStpTable.
OBJECT-TYPE    
  AtbrStpEntry  

atbrStpLanId 1.3.6.1.4.1.207.8.5.10.2.1.1.1
This object uniquely identifies the lan or emulated lan.
OBJECT-TYPE    
  INTEGER  

atbrStpProtocolSpecification 1.3.6.1.4.1.207.8.5.10.2.1.1.2
An indication of what version of the Spanning Tree Protocol is being run. The value 'decLb100(2)' indicates the DEC LANbridge 100 Spanning Tree protocol. IEEE 802.1d implementations will return 'ieee8021d(3)'. If future versions of the IEEE Spanning Tree Protocol are released that are incompatible with the current version a new value will be defined.
OBJECT-TYPE    
  INTEGER unknown(1), decLb100(2), ieee8021d(3)  

atbrStpPriority 1.3.6.1.4.1.207.8.5.10.2.1.1.3
The value of the write-able portion of the Bridge ID, i.e., the first two octets of the (8 octet long) Bridge ID. The other (last) 6 octets of the Bridge ID are given by the value of atbrBaseBridgeAddress.
OBJECT-TYPE    
  INTEGER 0..65535  

atbrStpTimeSinceTopologyChange 1.3.6.1.4.1.207.8.5.10.2.1.1.4
The time (in hundredths of a second) since the last time a topology change was detected by the bridge entity.
OBJECT-TYPE    
  TimeTicks  

atbrStpTopChanges 1.3.6.1.4.1.207.8.5.10.2.1.1.5
The total number of topology changes detected by this bridge since the management entity was last reset or initialized.
OBJECT-TYPE    
  Counter  

atbrStpDesignatedRoot 1.3.6.1.4.1.207.8.5.10.2.1.1.6
The bridge identifier of the root of the spanning tree as determined by the Spanning Tree Protocol as executed by this node. This value is used as the Root Identifier parameter in all Configuration Bridge PDUs originated by this node.
OBJECT-TYPE    
  BridgeId  

atbrStpRootCost 1.3.6.1.4.1.207.8.5.10.2.1.1.7
The cost of the path to the root as seen from this bridge.
OBJECT-TYPE    
  INTEGER  

atbrStpRootPort 1.3.6.1.4.1.207.8.5.10.2.1.1.8
The port number of the port which offers the lowest cost path from this bridge to the root bridge.
OBJECT-TYPE    
  INTEGER  

atbrStpMaxAge 1.3.6.1.4.1.207.8.5.10.2.1.1.9
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 bridge is currently using.
OBJECT-TYPE    
  Timeout  

atbrStpHelloTime 1.3.6.1.4.1.207.8.5.10.2.1.1.10
The amount of time between the transmission of Configuration bridge PDUs by this node 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 bridge is currently using.
OBJECT-TYPE    
  Timeout  

atbrStpHoldTime 1.3.6.1.4.1.207.8.5.10.2.1.1.11
This time value determines the interval length during which no more than two Configuration bridge PDUs shall be transmitted by this node, in units of hundredths of a second.
OBJECT-TYPE    
  INTEGER  

atbrStpForwardDelay 1.3.6.1.4.1.207.8.5.10.2.1.1.12
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 bridge is currently using, in contrast to atbrStpBridgeForwardDelay which is the value that this bridge and all others would start using if/when this bridge were to become the root.]
OBJECT-TYPE    
  Timeout  

atbrStpBridgeMaxAge 1.3.6.1.4.1.207.8.5.10.2.1.1.13
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 atbrStpBridgeHelloTime. 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.
OBJECT-TYPE    
  Timeout 600..4000  

atbrStpBridgeHelloTime 1.3.6.1.4.1.207.8.5.10.2.1.1.14
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.
OBJECT-TYPE    
  Timeout 100..1000  

atbrStpBridgeForwardDelay 1.3.6.1.4.1.207.8.5.10.2.1.1.15
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 atbrStpBridgeMaxAge. 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.
OBJECT-TYPE    
  Timeout 400..3000  

atbrStpPortTable 1.3.6.1.4.1.207.8.5.10.2.15
A table that contains port-specific information for the Spanning Tree Protocol.
OBJECT-TYPE    
  SEQUENCE OF  
    AtbrStpPortEntry

atbrStpPortEntry 1.3.6.1.4.1.207.8.5.10.2.15.1
A list of information maintained by every port about the Spanning Tree Protocol state for that port.
OBJECT-TYPE    
  AtbrStpPortEntry  

atbrStpPortLanId 1.3.6.1.4.1.207.8.5.10.2.15.1.1
This object uniquely identifies the lan or emulated lan.
OBJECT-TYPE    
  INTEGER  

atbrStpPort 1.3.6.1.4.1.207.8.5.10.2.15.1.2
The port number of the port for which this entry contains Spanning Tree Protocol management information.
OBJECT-TYPE    
  INTEGER 1..65535  

atbrStpPortPriority 1.3.6.1.4.1.207.8.5.10.2.15.1.3
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 atbrStpPort.
OBJECT-TYPE    
  INTEGER 0..255  

atbrStpPortState 1.3.6.1.4.1.207.8.5.10.2.15.1.4
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 which are disabled (see atbrStpPortEnable), this object will have a value of disabled(1).
OBJECT-TYPE    
  INTEGER disabled(1), blocking(2), listening(3), learning(4), forwarding(5), broken(6)  

atbrStpPortEnable 1.3.6.1.4.1.207.8.5.10.2.15.1.5
The enabled/disabled status of the port.
OBJECT-TYPE    
  INTEGER enabled(1), disabled(2)  

atbrStpPortPathCost 1.3.6.1.4.1.207.8.5.10.2.15.1.6
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.
OBJECT-TYPE    
  INTEGER 1..65535  

atbrStpPortDesignatedRoot 1.3.6.1.4.1.207.8.5.10.2.15.1.7
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.
OBJECT-TYPE    
  BridgeId  

atbrStpPortDesignatedCost 1.3.6.1.4.1.207.8.5.10.2.15.1.8
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.
OBJECT-TYPE    
  INTEGER  

atbrStpPortDesignatedBridge 1.3.6.1.4.1.207.8.5.10.2.15.1.9
The Bridge Identifier of the bridge which this port considers to be the Designated Bridge for this port's segment.
OBJECT-TYPE    
  BridgeId  

atbrStpPortDesignatedPort 1.3.6.1.4.1.207.8.5.10.2.15.1.10
The Port Identifier of the port on the Designated Bridge for this port's segment.
OBJECT-TYPE    
  STRING Size(2)  

atbrStpPortForwardTransitions 1.3.6.1.4.1.207.8.5.10.2.15.1.11
The number of times this port has transitioned from the Learning state to the Forwarding state.
OBJECT-TYPE    
  Counter  

atbrTpTable 1.3.6.1.4.1.207.8.5.10.4.1
Table of transparent bridging information.
OBJECT-TYPE    
  SEQUENCE OF  
    AtbrTpEntry

atbrTpEntry 1.3.6.1.4.1.207.8.5.10.4.1.1
An entry in the atbrTpTable.
OBJECT-TYPE    
  AtbrTpEntry  

atbrTpLanId 1.3.6.1.4.1.207.8.5.10.4.1.1.1
This object uniquely identifies the lan or emulated lan.
OBJECT-TYPE    
  INTEGER  

atbrTpLearnedEntryDiscards 1.3.6.1.4.1.207.8.5.10.4.1.1.2
The total number of Forwarding Database entries, which have been or would have been learnt, but have been discarded due to a lack of space to store them in the Forwarding Database. If this counter is increasing, it indicates that the Forwarding Database is regularly becoming full (a condition which has unpleasant performance effects on the subnetwork). If this counter has a significant value but is not presently increasing, it indicates that the problem has been occurring but is not persistent.
OBJECT-TYPE    
  Counter  

atbrTpAgingTime 1.3.6.1.4.1.207.8.5.10.4.1.1.3
The timeout period in seconds for aging out dynamically learned forwarding information. 802.1D-1990 recommends a default of 300 seconds.
OBJECT-TYPE    
  INTEGER 10..1000000  

atbrTpFdbTable 1.3.6.1.4.1.207.8.5.10.4.3
A table that contains information about unicast entries for which the bridge has forwarding and/or filtering information. This information is used by the transparent bridging function in determining how to propagate a received frame.
OBJECT-TYPE    
  SEQUENCE OF  
    AtbrTpFdbEntry

atbrTpFdbEntry 1.3.6.1.4.1.207.8.5.10.4.3.1
Information about a specific unicast MAC address for which the bridge has some forwarding and/or filtering information.
OBJECT-TYPE    
  AtbrTpFdbEntry  

atbrTpFdbLanId 1.3.6.1.4.1.207.8.5.10.4.3.1.1
This object uniquely identifies the lan or emulated lan.
OBJECT-TYPE    
  INTEGER  

atbrTpFdbAddress 1.3.6.1.4.1.207.8.5.10.4.3.1.2
A unicast MAC address for which the bridge has forwarding and/or filtering information.
OBJECT-TYPE    
  MacAddress  

atbrTpFdbPort 1.3.6.1.4.1.207.8.5.10.4.3.1.3
Either the value '0', or the port number of the port on which a frame having a source address equal to the value of the corresponding instance of atbrTpFdbAddress has been seen. A value of '0' indicates that the port number has not been learned but that the bridge does have some forwarding/filtering information about this address (e.g. in the atbrStaticTable). Implementors are encouraged to assign the port value to this object whenever it is learned even for addresses for which the corresponding value of atbrTpFdbStatus is not learned(3).
OBJECT-TYPE    
  INTEGER  

atbrTpFdbStatus 1.3.6.1.4.1.207.8.5.10.4.3.1.4
The status of this entry. please note, some of the status is specific for At4016 and At3695. The meanings of the values are: inactive(1) : this entry is not longer valid (e.g., it was learned but has since aged-out), but has not yet been flushed from the table. le-arp-pending(2):Waiting for the le-arp to be resolved. This is only for AT4016/3695. vcc-setup-pending (3) : Waiting for VCC to be setup. This is only for AT4016/3695. vlan-resolve-pending(4) : Waiting for the Vlan to be resolved by communicating with the LECS. This is only for AT4016/3695. join-pending(5) : LEC in te stage of joining to the ELans. This is only for AT4016/3695. active(6) : the value of the corresponding instance of atbrTpFdbPort was active, and is being used. other(7) : none of the following. This would include the case where some other MIB object (not the corresponding instance of atbrTpFdbPort, nor an entry in the atbrStaticTable) is being used to determine if and how frames addressed to the value of the corresponding instance of atbrTpFdbAddress are being forwarded. --- self(4) : the value of the corresponding --- instance of atbrTpFdbAddress --- represents one of the bridge's --- addresses. The corresponding --- instance of atbrTpFdbPort --- indicates which of the bridge's --- ports has this address. --- --- mgmt(5) : the value of the corresponding --- instance of atbrTpFdbAddress is --- also the value of an existing --- instance of atbrStaticAddress.
OBJECT-TYPE    
  INTEGER inactive(1), le-arp-pending(2), vcc-setup-pending(3), vlan-resolve-pending(4), join-pending(5), active(6), other(7)  

atbrTpPortTable 1.3.6.1.4.1.207.8.5.10.4.4
A table that contains information about every port that is associated with this transparent bridge.
OBJECT-TYPE    
  SEQUENCE OF  
    AtbrTpPortEntry

atbrTpPortEntry 1.3.6.1.4.1.207.8.5.10.4.4.1
A list of information for each port of a transparent bridge.
OBJECT-TYPE    
  AtbrTpPortEntry  

atbrTpPortLanId 1.3.6.1.4.1.207.8.5.10.4.4.1.1
This object uniquely identifies the lan or emulated lan.
OBJECT-TYPE    
  INTEGER  

atbrTpPort 1.3.6.1.4.1.207.8.5.10.4.4.1.2
The port number of the port for which this entry contains Transparent bridging management information.
OBJECT-TYPE    
  INTEGER 1..65535  

atbrTpPortMaxInfo 1.3.6.1.4.1.207.8.5.10.4.4.1.3
The maximum size of the INFO (non-MAC) field that this port will receive or transmit.
OBJECT-TYPE    
  INTEGER  

atbrTpPortInFrames 1.3.6.1.4.1.207.8.5.10.4.4.1.4
The number of frames that have been received by this port from its segment. Note that a frame received on the interface corresponding to this port is only counted by this object if and only if it is for a protocol being processed by the local bridging function, including bridge management frames.
OBJECT-TYPE    
  Counter  

atbrTpPortOutFrames 1.3.6.1.4.1.207.8.5.10.4.4.1.5
The number of frames that have been transmitted by this port to its segment. Note that a frame transmitted on the interface corresponding to this port is only counted by this object if and only if it is for a protocol being processed by the local bridging function, including bridge management frames.
OBJECT-TYPE    
  Counter  

atbrTpPortInDiscards 1.3.6.1.4.1.207.8.5.10.4.4.1.6
Count of valid frames received which were discarded (i.e., filtered) by the Forwarding Process.
OBJECT-TYPE    
  Counter  

atbrStaticTable 1.3.6.1.4.1.207.8.5.10.5.1
A table containing filtering information configured into the bridge by (local or network) management specifying the set of ports to which frames received from specific ports and containing specific destination addresses are allowed to be forwarded. The value of zero in this table as the port number from which frames with a specific destination address are received, is used to specify all ports for which there is no specific entry in this table for that particular destination address. Entries are valid for unicast and for group/broadcast addresses.
OBJECT-TYPE    
  SEQUENCE OF  
    AtbrStaticEntry

atbrStaticEntry 1.3.6.1.4.1.207.8.5.10.5.1.1
Filtering information configured into the bridge by (local or network) management specifying the set of ports to which frames received from a specific port and containing a specific destination address are allowed to be forwarded.
OBJECT-TYPE    
  AtbrStaticEntry  

atbrStaticLanId 1.3.6.1.4.1.207.8.5.10.5.1.1.1
This object uniquely identifies the lan or emulated lan.
OBJECT-TYPE    
  INTEGER  

atbrStaticAddress 1.3.6.1.4.1.207.8.5.10.5.1.1.2
The destination MAC address in a frame to which this entry's filtering information applies. This object can take the value of a unicast address, a group address or the broadcast address.
OBJECT-TYPE    
  MacAddress  

atbrStaticReceivePort 1.3.6.1.4.1.207.8.5.10.5.1.1.3
Either the value '0', or the port number of the port from which a frame must be received in order for this entry's filtering information to apply. A value of zero indicates that this entry applies on all ports of the bridge for which there is no other applicable entry.
OBJECT-TYPE    
  INTEGER  

atbrStaticAllowedToGoTo 1.3.6.1.4.1.207.8.5.10.5.1.1.4
The set of ports to which frames received from a specific port and destined for a specific MAC address, are allowed to be forwarded. Each octet within the value of this object specifies a set of eight ports, with the first octet specifying ports 1 through 8, the second octet specifying ports 9 through 16, etc. Within each octet, the most significant bit represents the lowest numbered port, and the least significant bit represents the highest numbered port. Thus, each port of the bridge is represented by a single bit within the value of this object. If that bit has a value of '1' then that port is included in the set of ports; the port is not included if its bit has a value of '0'. (Note that the setting of the bit corresponding to the port from which a frame is received is irrelevant.) The default value of this object is a string of ones of appropriate length.
OBJECT-TYPE    
  STRING  

atbrStaticStatus 1.3.6.1.4.1.207.8.5.10.5.1.1.5
This object indicates the status of this entry. The default value is permanent(3). other(1) - this entry is currently in use but the conditions under which it will remain so are different from each of the following values. invalid(2) - writing this value to the object removes the corresponding entry. permanent(3) - this entry is currently in use and will remain so after the next reset of the bridge. deleteOnReset(4) - this entry is currently in use and will remain so until the next reset of the bridge. deleteOnTimeout(5) - this entry is currently in use and will remain so until it is aged out.
OBJECT-TYPE    
  INTEGER other(1), invalid(2), permanent(3), deleteOnReset(4), deleteOnTimeout(5)  

newRoot 101
The newRoot trap indicates that the sending agent has become the new root of the Spanning Tree; the trap is sent by a bridge soon after its election as the new root, e.g., upon expiration of the Topology Change Timer immediately subsequent to its election. Implementation of this trap is optional.
TRAP-TYPE    

topologyChange 102
A topologyChange trap is sent by a bridge when any of its configured ports transitions from the Learning state to the Forwarding state, or from the Forwarding state to the Blocking state. The trap is not sent if a newRoot trap is sent for the same transition. Implementation of this trap is optional.
TRAP-TYPE