ATMF BUS MIB

Configuration Group
Configuration Table
LEC Table
Statistics Table
LEC Statistics Table
Error Log Control Table
Error Log Table

Configuration Group

UP_ARROW138B.GIF (883 bytes)

Fields Descriptions

busConfNextId The next available BUS index. The value of this object can be used as the index by the network manager to create an entry in the busConfTable.
busLecTableLastChange The value of sysUpTime when an entry of the busLecTable was created/deleted.

 

Configuration Table

UP_ARROW138B.GIF (883 bytes)
This table contains all LAN Emulation Broadcast and Unknown Servers (BUS) this agent manages. The BUS handles data sent by an LE Client to the broadcast MAC address, all multicast traffic, and initial unicast frames which are sent by a LEC before the data direct target ATM address has been resolved. There can be multiple BUSs per ELAN, but a BUS can service only one ELAN.

Fields Descriptions

busConfIndex A value which uniquely identifies a conceptual row in the busConfTable.

If the conceptual row identified by this value of busConfIndex is recreated following an agent restart, the same value of busConfIndex must be used to identify the recreated row.

busConfAtmAddrSpec An ATM address specified by the network or local management that, with the ATM address mask, determines a portion of the ATM address that the BUS on the designated ATM interface will use to derive the actual ATM address from the network or ILMI. The derived ATM address is specified in the object busAtmAddrActual, which is used to receive multicast or broadcast traffic.
busConfAtmAddrMask The ATM address mask associated with the object busAtmAddrSpec. The value of the mask is an ATM address with the don't care portion set to zero and the valid ATM address portion set to one.
busConfAtmAddrActual The resultant ATM address in use by the BUS. This object is a product of the specified ATM address, mask and interaction with the network. This object is created by the agent.
busConfElanName The name of the ELAN this BUS is providing service to.
busConfLastChange The value of the sysUpTime when this BUS has entered the state indicated by the object busConfOperStatus.
busConfMaxFrameAge Time out period for a frame that has been received but not been transmitted by BUS to all relevant Multicast Send VCCs or Multicast Forward VCCs.

REFERENCE
LAN Emulation Over ATM Specification - version 1.0. S5.

busConfOperStatus The operational state of this BUS entry. When in 'up' state the BUS will forward LEC traffic. Any other state the BUS is not available for service and may release all the existing VCCs and refuse service to all clients.
busConfAdminStatuS The desired state of the designated BUS as prescribed by the operator. The actions of the agent will, if at all possible, eventually result in the desired state being reflected in the busOperStatus.
busConfRowStatus This object is used to create or delete entries in the busConfTable.

REFERENCE:
RFC 1443, [10] Textual Conventions for version 2 of the Simple Network Management Protocol (SNMPv2).

 

LEC Table

UP_ARROW138B.GIF (883 bytes)
This table contains the BUS and the actual LECs being serviced by the BUS. It can be used as the actual mapping between BUS and LEC.

This table provides information for Multicast send VCCs between BUS and clients. Objects busLecMcastSendAtmIfIndex, busLecMcastSendVpi, and busLecMcstSendVci can only be modified if PVC is used.

Fields Descriptions

busLecAtmAddr The ATM address of the LEC. This is the primary ATM address of the LEC.
busLecRowStatus This object provides a way for the network manager to selectively remove a LE Client from the designated BUS. Or in a system where PVCs are used, this table is used to create Multicast Send VCCs between BUS and LEC.

 

Statistics Table

UP_ARROW138B.GIF (883 bytes)
This table contains all counters the BUS maintain. This table is an extension to the busConfTable.

Fields Descriptions

busStatInDiscards The number of frames discarded due to resource error.
busStatInOctets The number of octets that this BUS has received since its initialization.
busStatInUcastFrms The number of frames that the BUS has received which were unicast data frames and all control frames (i.e. they were flooded from the client).
busStatInMcastFrms The number of frames that the BUS has received which were multicast frames.
busStatFrmTimeOuts The number of frames dropped by the BUS due to time out.
busStatMcastSendRefused The number of multicast send VCCconnection setup attempts to the BUS which were refused.
busStatMcastFwdFailure The number of multicast forward VCCconnection setup attempts from the BUS which were unsuccessful for any reason.

 

LEC Statistics Table

UP_ARROW138B.GIF (883 bytes)
This table contains all LEC counters the BUS maintains. This table can also be used to retrieve all LECs a BUS is providing service to.

Fields Descriptions

busLecRecvs Number of Multicast, Broadcast and Unknown Forward requests received by the BUS from this LEC.
busLecForwards Number of Multicast, Broadcast and Unkown Forward requests forwarded by the BUS from this LEC. The value of this object indicates how many requests have been forwarded by the BUS.
busLecDiscards Number of Multicast, Broadcast and Unkown Forward requests discarded by the BUS from this LEC. The value of this object indicates how many requests have been discarded by the BUS.

 

Error Log Control Table

UP_ARROW138B.GIF (883 bytes)
This table contains error log control information of all BUS instances. This table is an extension to the busConfTable. It is used to enable or disable error logs for a particular BUS entry.

Fields Descriptions

busErrCtlAdminStatus This object is used to enable/disable error logging for the BUS.
busErrCtlOperStatus This object is used to indicate the result of a set operation to the object busErrCtlAdminStatus. If the error log was successfully started, it is in active(2) mode. Otherwise, it is set to either outOfRes(3) or failed(4) for the respective reasons.
busErrCtlClearLog This object is used to clear the error log entries associated with this BUS.
busErrCtlMaxEntries The maximum entries of the error log a BUS can support.
busErrCtlLastEntry The index to the last entry in the error log table for this BUS.

 

Error Log Table

UP_ARROW138B.GIF (883 bytes)
This table contains error logs of the BUS instances enabled in the busErrCtlTable. This table is indexed by the BUS instance index and an arbitrary integer uniquely identifies an error log.

Fields Descriptions

busErrLogIndex An arbitrary integer which uniquely identifies an error log entry. The first entry after reset or clearing the error log is an assigned value (2^32-1). Succeeding entries are assigned with descending values consecutively. Entries after 1 are discarded.The enabling/disabling of the error log capability is done in the busErrCtlTable.
busErrLogAtmAddr The primary ATM address of the LE Client on whose Multicast Send VCC the error occurred. The corresponding error code is specified in the object busErrLogErrCode.
busErrLogErrCode The Error code which indicates the cause of the error.
busErrLogTime The sysUpTime when this entry was logged by the BUS.