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RFC 7784

 
 
 

Transparent Interconnection of Lots of Links (TRILL) Operations, Administration, and Maintenance (OAM) MIB

Part 3 of 3, p. 28 to 50
Prev RFC Part

 


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   trillOamMepPtrChassisId OBJECT-TYPE
       SYNTAX          LldpChassisId
       MAX-ACCESS      read-only
       STATUS          current
       DESCRIPTION
           "The Chassis ID returned in the Sender ID TLV of the PTR, if
           any.  The format of this object is determined by the
           value of the trillOamMepPtrChassisIdSubtype object."
       REFERENCE       "RFC 7455, Section 8.4.1"
       ::= { trillOamPtrEntry 16 }

   trillOamMepPtrOrganizationSpecificTlv OBJECT-TYPE
       SYNTAX          OCTET STRING (SIZE  (0 | 4..1500))
       MAX-ACCESS      read-only
       STATUS          current
       DESCRIPTION
           "All organization-specific TLVs returned in the PTR, if
           any.  Includes all octets including and following the TLV
           Length field of each TLV, concatenated together."
       REFERENCE       "RFC 7455, Section 8.4.1"
       ::= { trillOamPtrEntry 17 }

   trillOamMepPtrNextHopNicknames OBJECT-TYPE
       SYNTAX          OCTET STRING (SIZE  (0 | 4..1500))
       MAX-ACCESS      read-only
       STATUS          current
       DESCRIPTION
           "Next hop RBridge List TLV returned in the PTR, if
           any.  Includes all octets including and following the TLV
           Length field of each TLV, concatenated together."
       REFERENCE       "RFC 7455, Section 8.4.1"
       ::= { trillOamPtrEntry 18 }

   -- ******************************************************************
   -- TRILL OAM Multi-destination Reply Table
   -- ******************************************************************

   trillOamMtvrTable OBJECT-TYPE
       SYNTAX          SEQUENCE OF TrillOamMtvrEntry
       MAX-ACCESS      not-accessible
       STATUS          current
       DESCRIPTION
           "This table includes Multi-destination Reply objects and
            operations for the TRILL OAM facilities described in
            RFC 7455.

           Each row in the table represents a Multi-destination Reply
           Entry for the defined MEP and Transaction.  This table uses

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           five indices.  The first three indices are the indices of the
           Maintenance Domain, MANET, and MEP tables.  The fourth index
           is the specific Transaction Identifier on the selected MEP.
           The fifth index is the receive order of Multi-destination
           replies.

           Some writable objects in this table are only applicable in
           certain cases (as described under each object), and attempts
           to write values for them in other cases will be ignored."
       REFERENCE       "RFC 7455"
       ::= { trillOamMep 4 }

   trillOamMtvrEntry OBJECT-TYPE
       SYNTAX          TrillOamMtvrEntry
       MAX-ACCESS      not-accessible
       STATUS          current
       DESCRIPTION
           "The conceptual row of trillOamMtvrTable."
       INDEX           {
                           dot1agCfmMdIndex,
                           dot1agCfmMaIndex,
                           dot1agCfmMepIdentifier,
                           trillOamMepPtrTransactionId,
                           trillOamMepMtvrReceiveOrder
                       }
       ::= { trillOamMtvrTable 1 }

   TrillOamMtvrEntry ::= SEQUENCE {
           trillOamMepMtvrTransactionId           Unsigned32,
           trillOamMepMtvrReceiveOrder            Unsigned32,
           trillOamMepMtvrFlag                    Unsigned32,
           trillOamMepMtvrErrorCode               Unsigned32,
           trillOamMepMtvrLastEgressId            Unsigned32,
           trillOamMepMtvrIngress    Dot1agCfmIngressActionFieldValue,
           trillOamMepMtvrIngressMac              MacAddress,
           trillOamMepMtvrIngressPortIdSubtype    LldpPortIdSubtype,
           trillOamMepMtvrIngressPortId           LldpPortId,
           trillOamMepMtvrEgress     Dot1agCfmEgressActionFieldValue,
           trillOamMepMtvrEgressMac               MacAddress,
           trillOamMepMtvrEgressPortIdSubtype     LldpPortIdSubtype,
           trillOamMepMtvrEgressPortId            LldpPortId,
           trillOamMepMtvrChassisIdSubtype        LldpChassisIdSubtype,
           trillOamMepMtvrChassisId               LldpChassisId,
           trillOamMepMtvrOrganizationSpecificTlv OCTET STRING,
           trillOamMepMtvrNextHopNicknames        OCTET STRING,
           trillOamMepMtvrReceiverAvailability    TruthValue,
           trillOamMepMtvrReceiverCount           TruthValue
   }

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   trillOamMepMtvrTransactionId OBJECT-TYPE
       SYNTAX          Unsigned32 (0..4294967295)
       MAX-ACCESS      not-accessible
       STATUS          current
       DESCRIPTION
           "Sequence Number / Transaction Identifier returned by a
           previously transmitted Multi-destination message command
           indicating which MTVM's response is going to be returned."
       REFERENCE       "RFC 7455, Section 11"
       ::= { trillOamMtvrEntry 1 }

   trillOamMepMtvrReceiveOrder OBJECT-TYPE
       SYNTAX          Unsigned32 (1..4294967295)
       MAX-ACCESS      not-accessible
       STATUS          current
       DESCRIPTION
           "An index to distinguish among multiple MTVRs with same MTVR
            Transaction Identifier field value.
            trillOamMepMtvrReceiveOrder is assigned sequentially from 1,
            in the order that the Multi-destination Tree Initiator
            received the MTVRs."
       REFERENCE   "RFC 7455, Section 11"
       ::= { trillOamMtvrEntry 2 }

   trillOamMepMtvrFlag OBJECT-TYPE
       SYNTAX          Unsigned32 (0..15)
       MAX-ACCESS      read-only
       STATUS          current
       DESCRIPTION
           "FCOI (TRILL OAM Message TLV) field value for a
            returned MTVR."
       REFERENCE       "RFC 7455, Section 8.4.2"
       ::= { trillOamMtvrEntry 3 }

   trillOamMepMtvrErrorCode OBJECT-TYPE
       SYNTAX          Unsigned32 (0..65535)
       MAX-ACCESS      read-only
       STATUS          current
       DESCRIPTION
           "Return Code and Return Sub-code value for a returned MTVR."
       REFERENCE       "RFC 7455, Section 8.4.2"
       ::= { trillOamMtvrEntry 4 }

   trillOamMepMtvrLastEgressId OBJECT-TYPE
       SYNTAX          Unsigned32 (0..65535)
       MAX-ACCESS      read-only
       STATUS          current

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       DESCRIPTION
           "An Integer field holding the Last Egress Identifier returned
           in the MTVR Upstream RBridge Nickname TLV of the MTVR.  The
           Last Egress Identifier identifies the Upstream Nickname."
       REFERENCE       "RFC 7455, Section 8.4.1"
       ::= { trillOamMtvrEntry 5 }

   trillOamMepMtvrIngress OBJECT-TYPE
       SYNTAX          Dot1agCfmIngressActionFieldValue
       MAX-ACCESS      read-only
       STATUS          current
       DESCRIPTION
           "The value returned in the Ingress Action field of
           the MTVR.  The value ingNoTlv(0) indicates that no
           Reply Ingress TLV was returned in the MTVM."
       REFERENCE       "RFC 7455, Section 11.2.3"
       ::= { trillOamMtvrEntry 6 }

   trillOamMepMtvrIngressMac OBJECT-TYPE
       SYNTAX          MacAddress
       MAX-ACCESS      read-only
       STATUS          current
       DESCRIPTION
           "MAC address returned in the ingress MAC address field."
       REFERENCE       "RFC 7455, Section 8.4.1"
       ::= { trillOamMtvrEntry 7 }

   trillOamMepMtvrIngressPortIdSubtype OBJECT-TYPE
       SYNTAX          LldpPortIdSubtype
       MAX-ACCESS      read-only
       STATUS          current
       DESCRIPTION
           "Ingress Port ID.  The format of this object is
           determined by the value of the
           trillOamMepMtvrIngressPortIdSubtype object."
       REFERENCE       "RFC 7455, Section 8.4.1"
       ::= { trillOamMtvrEntry 8 }

   trillOamMepMtvrIngressPortId OBJECT-TYPE
       SYNTAX          LldpPortId
       MAX-ACCESS      read-only
       STATUS          current
       DESCRIPTION
           "Ingress Port ID.  The format of this object is determined by
           the value of the trillOamMepMtvrIngressPortId object."
       REFERENCE       "RFC 7455, Section 8.4.1"
       ::= { trillOamMtvrEntry 9 }

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   trillOamMepMtvrEgress OBJECT-TYPE
       SYNTAX          Dot1agCfmEgressActionFieldValue
       MAX-ACCESS      read-only
       STATUS          current
       DESCRIPTION
           "The value returned in the Egress Action field of the MTVR.
           The value ingNoTlv(0) indicates that no Reply Egress TLV was
           returned in the MTVR."
       REFERENCE       "RFC 7455, Section 8.4.1"
       ::= { trillOamMtvrEntry 10 }

   trillOamMepMtvrEgressMac OBJECT-TYPE
       SYNTAX          MacAddress
       MAX-ACCESS      read-only
       STATUS          current
       DESCRIPTION
           "MAC address returned in the egress MAC address field."
       REFERENCE       "RFC 7455, Section 8.4.1"
       ::= { trillOamMtvrEntry 11 }

   trillOamMepMtvrEgressPortIdSubtype OBJECT-TYPE
       SYNTAX          LldpPortIdSubtype
       MAX-ACCESS      read-only
       STATUS          current
       DESCRIPTION
           "Egress Port ID.  The format of this object is determined by
           the value of the trillOamMepMtvrEgressPortIdSubtype object."
       REFERENCE       "RFC 7455, Section 8.4.1"
       ::= { trillOamMtvrEntry 12 }

   trillOamMepMtvrEgressPortId OBJECT-TYPE
       SYNTAX          LldpPortId
       MAX-ACCESS      read-only
       STATUS          current
       DESCRIPTION
           "Egress Port ID.  The format of this object is determined by
           the value of the trillOamMepMtvrEgressPortId object."
       REFERENCE       "RFC 7455, Section 8.4.1"
       ::= { trillOamMtvrEntry 13 }

   trillOamMepMtvrChassisIdSubtype OBJECT-TYPE
       SYNTAX          LldpChassisIdSubtype
       MAX-ACCESS      read-only
       STATUS          current
       DESCRIPTION
           "This object specifies the format of the Chassis ID returned
           in the Sender ID TLV of the MTVR, if any.  This value is
           meaningless if the trillOamMepMtvrChassisId has a

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           length of 0."
       REFERENCE       "RFC 7455, Section 8.4.1"
       ::= { trillOamMtvrEntry 14 }

   trillOamMepMtvrChassisId OBJECT-TYPE
       SYNTAX          LldpChassisId
       MAX-ACCESS      read-only
       STATUS          current
       DESCRIPTION
           "The Chassis ID returned in the Sender ID TLV of the MTVR, if
           any.  The format of this object is determined by the
           value of the trillOamMepMtvrChassisIdSubtype object."
       REFERENCE       "RFC 7455, Section 8.4.1"
       ::= { trillOamMtvrEntry 15 }

   trillOamMepMtvrOrganizationSpecificTlv OBJECT-TYPE
       SYNTAX          OCTET STRING (SIZE  (0 | 4..1500))
       MAX-ACCESS      read-only
       STATUS          current
       DESCRIPTION
           "All organization-specific TLVs returned in the MTVR, if
           any.  Includes all octets including and following the TLV
           Length field of each TLV, concatenated together."
       REFERENCE       "RFC 7455, Section 8.4.1"
       ::= { trillOamMtvrEntry 16 }

   trillOamMepMtvrNextHopNicknames OBJECT-TYPE
       SYNTAX          OCTET STRING (SIZE  (0 | 4..1500))
       MAX-ACCESS      read-only
       STATUS          current
       DESCRIPTION
           "Next hop RBridge List TLV returned in the PTR, if
           any.  Includes all octets including and following the TLV
           Length field of each TLV, concatenated together."
       REFERENCE       "RFC 7455, Section 8.4.3"
       ::= { trillOamMtvrEntry 17 }

   trillOamMepMtvrReceiverAvailability OBJECT-TYPE
       SYNTAX          TruthValue
       MAX-ACCESS      read-only
       STATUS          current
       DESCRIPTION
           "A value of true indicates that the MTVR response contained
           Multicast receiver availability TLV."
       REFERENCE       "RFC 7455, Section 8.4.10"
       ::= { trillOamMtvrEntry 18 }

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   trillOamMepMtvrReceiverCount OBJECT-TYPE
       SYNTAX          TruthValue
       MAX-ACCESS      read-only
       STATUS          current
       DESCRIPTION
           "Indicates the number of multicast receivers available on
           the responding RBridge on the VLAN specified by the
           diagnostic VLAN."
       REFERENCE       "RFC 7455, Section 8.4.10"
       ::= { trillOamMtvrEntry 19 }

   -- *****************************************************************
   -- TRILL OAM MEP Database Table
   -- *****************************************************************

   trillOamMepDbTable OBJECT-TYPE
       SYNTAX      SEQUENCE OF TrillOamMepDbEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
          "This table is an extension of the dot1agCfmMepDbTable
           and rows are automatically added to or deleted from
           this table based upon row creation and destruction of the
           dot1agCfmMepDbTable."
       REFERENCE
          "RFC 7455"
       ::= { trillOamMep 5 }

   trillOamMepDbEntry OBJECT-TYPE
       SYNTAX      TrillOamMepDbEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
          "The conceptual row of trillOamMepDbTable."
       AUGMENTS {
                dot1agCfmMepDbEntry
                }
       ::= { trillOamMepDbTable 1 }

   TrillOamMepDbEntry ::= SEQUENCE {
         trillOamMepDbFlowIndex         Unsigned32,
         trillOamMepDbFlowEntropy       OCTET STRING,
         trillOamMepDbFlowState         Dot1agCfmRemoteMepState,
         trillOamMepDbFlowFailedOkTime  TimeStamp,
         trillOamMepDbRBridgeName       Unsigned32,
         trillOamMepDbLastGoodSeqNum    Counter32
       }

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   trillOamMepDbFlowIndex OBJECT-TYPE
       SYNTAX        Unsigned32 (1..65535)
       MAX-ACCESS    read-only
       STATUS        current
       DESCRIPTION
         "This object identifies the flow.  If the Flow Identifier TLV
          is received, then the index received can also be used."
       REFERENCE "RFC 7455"
       ::= {trillOamMepDbEntry 1 }

   trillOamMepDbFlowEntropy OBJECT-TYPE
       SYNTAX        OCTET STRING (SIZE  (96))
       MAX-ACCESS    read-only
       STATUS        current
       DESCRIPTION
         "96 byte Flow Entropy."
       REFERENCE "RFC 7455, Section 3"
       ::= {trillOamMepDbEntry 2 }

   trillOamMepDbFlowState OBJECT-TYPE
       SYNTAX       Dot1agCfmRemoteMepState
       MAX-ACCESS    read-only
       STATUS        current
       DESCRIPTION
           "The operational state of the remote MEP (flow-based)
            IFF State machines.  State Machine is running now per
            flow."
       REFERENCE "RFC 7455"
       ::= {trillOamMepDbEntry 3 }

    trillOamMepDbFlowFailedOkTime OBJECT-TYPE
       SYNTAX        TimeStamp
       MAX-ACCESS    read-only
       STATUS        current
       DESCRIPTION
           "The Time (sysUpTime) at which the Remote MEP flow state
            machine last entered either the RMEP_FAILED or RMEP_OK
            state."
       REFERENCE "RFC 7455"
       ::= {trillOamMepDbEntry 4 }

   trillOamMepDbRBridgeName OBJECT-TYPE
       SYNTAX        Unsigned32(0..65471)
       MAX-ACCESS    read-only
       STATUS        current
       DESCRIPTION
            "Remote MEP RBridge Nickname."
       REFERENCE "RFC 7455 and RFC 6325, Section 3"

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       ::= {trillOamMepDbEntry 5 }

   trillOamMepDbLastGoodSeqNum OBJECT-TYPE
       SYNTAX        Counter32
       MAX-ACCESS    read-only
       STATUS        current
       DESCRIPTION
            "Last Sequence Number received."
       REFERENCE "RFC 7455, Section 13.1"
       ::= {trillOamMepDbEntry 6}

   -- ******************************************************************
   -- TRILL OAM MIB NOTIFICATIONS (TRAPS)
   -- This notification is sent to management entity whenever a
   -- MEP loses/restores
   -- contact with its peer flow MEPs
   -- ******************************************************************
   trillOamFaultAlarm NOTIFICATION-TYPE
       OBJECTS         { trillOamMepDbFlowState }
       STATUS          current
       DESCRIPTION
           "A MEP flow has a persistent defect condition.
            A notification (fault alarm) is sent to the management
            entity with the OID of the flow that has detected the fault.

           The management entity receiving the notification can identify
           the system from the network source address of the
           notification and can identify the flow reporting the defect
           by the indices in the OID of the trillOamMepFlowIndex and
           trillOamFlowDefect variable in the notification:

              dot1agCfmMdIndex - Also the index of the MEP's
                                 Maintenance Domain table entry
                                 (dot1agCfmMdTable).
              dot1agCfmMaIndex - Also an index (with the MD table index)
                                 of the MEP's Maintenance Association
                                 network table entry
                                 (dot1agCfmMaNetTable) and (with the MD
                                 table index and component ID) of the
                                 MEP's MA component table entry
                                 (dot1agCfmMaCompTable).
              dot1agCfmMepIdentifier - MEP Identifier and final index
                                 into the MEP table (dot1agCfmMepTable).
              trillOamMepFlowCfgIndex - Index identifies
                                 indicates the specific flow for
                                 the MEP"
       REFERENCE       "RFC 7455"
      ::= { trillOamNotifications 1 }

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   -- ******************************************************************
   -- TRILL OAM MIB Module - Conformance Information
   -- ******************************************************************

   trillOamMibCompliances  OBJECT IDENTIFIER
       ::= { trillOamMibConformance 1 }

   trillOamMibGroups  OBJECT IDENTIFIER
       ::= { trillOamMibConformance 2 }

   -- ******************************************************************
   -- TRILL OAM MIB Units of Conformance
   -- ******************************************************************

   trillOamMepMandatoryGroup OBJECT-GROUP
       OBJECTS         {
                           trillOamMepRName,
                           trillOamMepNextPtmTId,
                           trillOamMepNextMtvmTId,
                           trillOamMepPtrIn,
                           trillOamMepPtrInOutofOrder,
                           trillOamMepPtrOut,
                           trillOamMepMtvrIn,
                           trillOamMepMtvrInOutofOrder,
                           trillOamMepMtvrOut,
                           trillOamMepTxLbmDestRName,
                           trillOamMepTxLbmHC,
                           trillOamMepTxLbmReplyModeOob,
                           trillOamMepTransmitLbmReplyIp,
                           trillOamMepTxLbmFlowEntropy,
                           trillOamMepTxPtmDestRName,
                           trillOamMepTxPtmHC,
                           trillOamMepTxPtmReplyModeOob,
                           trillOamMepTransmitPtmReplyIp,
                           trillOamMepTxPtmFlowEntropy,
                           trillOamMepTxPtmStatus,
                           trillOamMepTxPtmResultOK,
                           trillOamMepTxPtmMessages,
                           trillOamMepTxPtmSeqNumber,
                           trillOamMepTxMtvmTree,
                           trillOamMepTxMtvmHC,
                           trillOamMepTxMtvmReplyModeOob,
                           trillOamMepTransmitMtvmReplyIp,
                           trillOamMepTxMtvmFlowEntropy,
                           trillOamMepTxMtvmStatus,
                           trillOamMepTxMtvmResultOK,
                           trillOamMepTxMtvmMessages,
                           trillOamMepTxMtvmSeqNumber,

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                           trillOamMepTxMtvmScopeList,
                           trillOamMepDiscontinuityTime
                       }
       STATUS          current
       DESCRIPTION
           "Mandatory objects for the TRILL OAM MEP group."
       ::= { trillOamMibGroups 1 }

   trillOamMepFlowCfgTableGroup OBJECT-GROUP
       OBJECTS         {
                           trillOamMepFlowCfgFlowEntropy,
                           trillOamMepFlowCfgDestRName,
                           trillOamMepFlowCfgFlowHC,
                           trillOamMepFlowCfgRowStatus
                       }
       STATUS          current
       DESCRIPTION
           "TRILL OAM MEP Flow Configuration objects group."
       ::= { trillOamMibGroups 2 }

   trillOamPtrTableGroup OBJECT-GROUP
       OBJECTS         {
                           trillOamMepPtrHC,
                           trillOamMepPtrFlag,
                           trillOamMepPtrErrorCode,
                           trillOamMepPtrTerminalMep,
                           trillOamMepPtrLastEgressId,
                           trillOamMepPtrIngress,
                           trillOamMepPtrIngressMac,
                           trillOamMepPtrIngressPortIdSubtype,
                           trillOamMepPtrIngressPortId,
                           trillOamMepPtrEgress,
                           trillOamMepPtrEgressMac,
                           trillOamMepPtrEgressPortIdSubtype,
                           trillOamMepPtrEgressPortId,
                           trillOamMepPtrChassisIdSubtype,
                           trillOamMepPtrChassisId,
                           trillOamMepPtrOrganizationSpecificTlv,
                           trillOamMepPtrNextHopNicknames
                       }
       STATUS          current
       DESCRIPTION
           "TRILL OAM MEP PTR objects group."
       ::= { trillOamMibGroups 3 }

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   trillOamMtvrTableGroup OBJECT-GROUP
       OBJECTS         {
                           trillOamMepMtvrFlag,
                           trillOamMepMtvrErrorCode,
                           trillOamMepMtvrLastEgressId,
                           trillOamMepMtvrIngress,
                           trillOamMepMtvrIngressMac,
                           trillOamMepMtvrIngressPortIdSubtype,
                           trillOamMepMtvrIngressPortId,
                           trillOamMepMtvrEgress,
                           trillOamMepMtvrEgressMac,
                           trillOamMepMtvrEgressPortIdSubtype,
                           trillOamMepMtvrEgressPortId,
                           trillOamMepMtvrChassisIdSubtype,
                           trillOamMepMtvrChassisId,
                           trillOamMepMtvrOrganizationSpecificTlv,
                           trillOamMepMtvrNextHopNicknames,
                           trillOamMepMtvrReceiverAvailability,
                           trillOamMepMtvrReceiverCount
                       }
       STATUS          current
       DESCRIPTION
           "TRILL OAM MEP MTVR objects group."
       ::= { trillOamMibGroups 4 }

   trillOamMepDbGroup  OBJECT-GROUP
       OBJECTS   {
         trillOamMepDbFlowIndex,
         trillOamMepDbFlowEntropy,
         trillOamMepDbFlowState,
         trillOamMepDbFlowFailedOkTime,
         trillOamMepDbRBridgeName,
         trillOamMepDbLastGoodSeqNum
       }

       STATUS      current
       DESCRIPTION
          "TRILL OAM MEP DB objects group."
       ::= { trillOamMibGroups 5 }

   trillOamNotificationGroup NOTIFICATION-GROUP
       NOTIFICATIONS  { trillOamFaultAlarm }
       STATUS current
       DESCRIPTION
           "A collection of objects describing notifications(traps)."
       ::= { trillOamMibGroups 6 }

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   -- ******************************************************************
   -- TRILL OAM MIB Module Compliance Statements
   -- ******************************************************************

   trillOamMibCompliance MODULE-COMPLIANCE
       STATUS          current
       DESCRIPTION
           "The compliance statement for the TRILL OAM MIB."
       MODULE          -- this module
       MANDATORY-GROUPS {
                           trillOamMepMandatoryGroup,
                           trillOamMepFlowCfgTableGroup,
                           trillOamPtrTableGroup,
                           trillOamMtvrTableGroup,
                           trillOamMepDbGroup,
                           trillOamNotificationGroup
                       }
       ::= { trillOamMibCompliances 1 }

   -- Compliance requirement for read-only implementation.

   trillOamMibReadOnlyCompliance MODULE-COMPLIANCE
       STATUS current
       DESCRIPTION
           "Compliance requirement for implementations that only
            provide read-only support for TRILL-OAM-MIB.
            Such devices can be monitored but cannot be configured
            using this MIB module."
       MODULE -- this module
       MANDATORY-GROUPS {
                           trillOamMepMandatoryGroup,
                           trillOamMepFlowCfgTableGroup,
                           trillOamPtrTableGroup,
                           trillOamMtvrTableGroup,
                           trillOamMepDbGroup,
                           trillOamNotificationGroup
                         }
       -- trillOamMepTable

       OBJECT trillOamMepTxLbmDestRName
       MIN-ACCESS  read-only
            DESCRIPTION
                "Write access is not required."

       OBJECT trillOamMepTxLbmHC
       MIN-ACCESS  read-only
            DESCRIPTION
                "Write access is not required."

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       OBJECT trillOamMepTxLbmReplyModeOob
       MIN-ACCESS  read-only
            DESCRIPTION
                "Write access is not required."

       OBJECT trillOamMepTransmitLbmReplyIp
       MIN-ACCESS  read-only
            DESCRIPTION
                "Write access is not required."

       OBJECT trillOamMepTxLbmFlowEntropy
       MIN-ACCESS  read-only
            DESCRIPTION
                "Write access is not required."

       OBJECT trillOamMepTxPtmDestRName
       MIN-ACCESS  read-only
            DESCRIPTION
                "Write access is not required."

       OBJECT trillOamMepTxPtmHC
       MIN-ACCESS  read-only
            DESCRIPTION
                "Write access is not required."

       OBJECT trillOamMepTxPtmReplyModeOob
       MIN-ACCESS  read-only
            DESCRIPTION
                "Write access is not required."

       OBJECT trillOamMepTransmitPtmReplyIp
       MIN-ACCESS  read-only
            DESCRIPTION
                "Write access is not required."

       OBJECT trillOamMepTxPtmFlowEntropy
       MIN-ACCESS  read-only
            DESCRIPTION
                "Write access is not required."

       OBJECT trillOamMepTxPtmStatus
       MIN-ACCESS  read-only
            DESCRIPTION
                "Write access is not required."

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       OBJECT trillOamMepTxPtmResultOK
       MIN-ACCESS  read-only
            DESCRIPTION
                "Write access is not required."

       OBJECT trillOamMepTxPtmMessages
       MIN-ACCESS  read-only
            DESCRIPTION
                "Write access is not required."

       OBJECT trillOamMepTxPtmSeqNumber
       MIN-ACCESS  read-only
            DESCRIPTION
                "Write access is not required."

       OBJECT trillOamMepTxMtvmTree
       MIN-ACCESS  read-only
            DESCRIPTION
                "Write access is not required."

       OBJECT trillOamMepTxMtvmHC
       MIN-ACCESS  read-only
            DESCRIPTION
                "Write access is not required."

       OBJECT trillOamMepTxMtvmReplyModeOob
       MIN-ACCESS  read-only
            DESCRIPTION
                "Write access is not required."

       OBJECT trillOamMepTransmitMtvmReplyIp
       MIN-ACCESS  read-only
            DESCRIPTION
                "Write access is not required."

       OBJECT trillOamMepTxMtvmFlowEntropy
       MIN-ACCESS  read-only
            DESCRIPTION
                "Write access is not required."

       OBJECT trillOamMepTxMtvmStatus
       MIN-ACCESS  read-only
            DESCRIPTION
                "Write access is not required."

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       OBJECT trillOamMepTxMtvmResultOK
       MIN-ACCESS  read-only
            DESCRIPTION
                "Write access is not required."

       OBJECT trillOamMepTxMtvmMessages
       MIN-ACCESS  read-only
            DESCRIPTION
                "Write access is not required."

       OBJECT trillOamMepTxMtvmSeqNumber
       MIN-ACCESS  read-only
            DESCRIPTION
                "Write access is not required."

       OBJECT trillOamMepTxMtvmScopeList
       MIN-ACCESS  read-only
            DESCRIPTION
                "Write access is not required."

   -- trillOamMepFlowCfgTable

       OBJECT trillOamMepFlowCfgFlowEntropy
       MIN-ACCESS  read-only
            DESCRIPTION
                "Write access is not required."

       OBJECT trillOamMepFlowCfgDestRName
       MIN-ACCESS  read-only
            DESCRIPTION
                "Write access is not required."

       OBJECT trillOamMepFlowCfgFlowHC
       MIN-ACCESS  read-only
            DESCRIPTION
                "Write access is not required."

       OBJECT trillOamMepFlowCfgRowStatus
       MIN-ACCESS  read-only
            DESCRIPTION
                "Write access is not required."

       ::= { trillOamMibCompliances 2 }

   END

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8.  Security Considerations

   This MIB relates to a system that will provide network connectivity
   and packet-forwarding services.  As such, improper manipulation of
   the objects represented by this MIB may result in denial of service
   to a large number of end users.

   There are a number of management objects defined in this MIB module
   with a MAX-ACCESS clause of read-create.  Such objects may be
   considered sensitive or vulnerable in some network environments.  The
   support for SET operations in a non-secure environment without proper
   protection opens devices to attack.  There are the tables and objects
   and their sensitivity/vulnerability:

   The following table and objects in the TRILL OAM MIB can be
   manipulated to interfere with the operation of RBridges by causing
   CPU use spikes:

   o  trillOamMepTransmitLbmReplyIp allows the reply from a Loopback
      message to be transmitted to an IP address in the TLV, thus
      allowing replies to be sent to any system to cause denial of
      service.

   o  trillOamMepTransmitPtmReplyIp allows the reply from a Path Trace
      message to be transmitted to an IP address in the TLV, thus
      allowing replies to be sent to any system to cause denial of
      service.

   o  trillOamMepTxPtmMessages allows the generation of PTMs and can be
      used to generate lots of CPU-driven traffic.

   o  trillOamMepTransmitMtvmReplyIp allows a from reply from an MTVM to
      be transmitted to an IP address in the TLV, thus allowing replies
      to be sent to any system to cause denial of service.

   o  trillOamMepTxMtvmMessages allows the generation of MTVMs and can
      be used to generate lots of CPU-driven traffic.

   The following objects in the TRILL OAM MIB are read-create and can be
   manipulated to interfere with the OAM operations of RBridges.  If the
   number of OAM frames generated in the network is high, this can cause
   a CPU spike on destination RBridges if control-plane policing is not
   properly implemented or configured on destination RBridges.

   o  trillOamMepTxLbmHC is used to set the Maximum Hop Count for the
      LBM.  As OAM frames don't leak out of the TRILL network, it has no
      side effects.

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   o  trillOamMepTxLbmReplyModeOob is used to indicate whether the reply
      is in or out of band.  This object's vulnerability is covered as
      part of trillOamMepTransmitLbmReplyIp.

   o  trillOamMepTxLbmFlowEntropy is used to indicate the customer flow
      and find the exact path in the network.  The creation of valid
      flows is its intended purpose.  If invalid flows are created on
      vulnerable system, they will be dropped in forwarding.

   o  trillOamMepTxLbmDestRName is read-create, but it's not vulnerable
      as invalid-name routes won't be present and will be rejected by
      the OAM application as part of normal processing.

   o  trillOamMepTxPtmHC is used to set the Maximum Hop Count for the
      PTM.  As OAM frames don't leak out of the TRILL network, it has no
      side effect.

   o  trillOamMepTxPtmReplyModeOob is used to indicate whether the reply
      is in or out of band.  This object's vulnerability is covered as
      part of trillOamMepTransmitPtmReplyIp.

   o  trillOamMepTxPtmFlowEntropy is used to indicate the customer flow
      and find the exact path in the network.  Creation of valid flows
      is its intended purpose.  If invalid flows are created on
      vulnerable systems, they will be dropped in forwarding.

   o  trillOamMepTxPtmDestRName is read-create, but it's not vulnerable
      as invalid-name routes won't be present and will be rejected by
      the OAM application as part of normal processing.

   o  trillOamMepTxPtmStatus is required for normal PTM operation.

   o  trillOamMepTxPtmResultOK is required for normal PTM operation.

   o  trillOamMepTxPtmSeqNumber is required for normal PTM operation.

   o  trillOamMepTxPtmMessages is required for normal PTM operation.

   o  trillOamMepTxMtvmTree is required for normal MTVM operation.

   o  trillOamMepTxMtvmHC is used to set the Maximum Hop Count for the
      MTVM.  As OAM frames don't leak out of the TRILL network, it has
      no side effect

   o  trillOamMepTxMtvmReplyModeOob is used to indicate whether the
      reply is in or out of band.  This object's vulnerability is
      covered as part of trillOamMepTransmitMtmReplyIp

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   o  trillOamMepTxMtvmFlowEntropy is used to indicate the customer flow
      and find the exact path in the network.  Creation of valid flows
      is its intended purpose.  If invalid flows are created on
      vulnerable systems, they will be dropped in forwarding.

   o  trillOamMepTxMtvmStatus is required for normal MTVM operation.

   o  trillOamMepTxMtvmResultOK, trillOamMepTxMtvmMessages,
      trillOamMepTxMtvmSeqNumber, and trillOamMepTxMtvmScopeList are
      required for normal MTVM operation.

   trillOamMepTransmitLbmReplyIp, trillOamMepTransmitPtmReplyIp, and
   trillOamMepTransmitMtvmReplyIp allow setting of the IP address to
   which reports are sent; thus, it can be used for denial of service
   for that IP.

   Some of the readable objects in this MIB module (i.e., objects with a
   MAX-ACCESS other than not-accessible) may be considered sensitive or
   vulnerable in some network environments.  It is thus important to
   control even GET and/or NOTIFY access to these objects and possibly
   to even encrypt the values of these objects when sending them over
   the network via SNMP.  For example, Path Trace messages expose the
   unicast topology of the network and Multi-destination Tree
   Verification Messages expose the multicast tree topology of the
   network.  This information should not be available to all users of
   the network.

   SNMP versions prior to SNMPv3 did not include adequate security.
   Even if the network itself is secure (for example by using IPsec),
   there is no control as to who on the secure network is allowed to
   access and GET/SET (read/change/create/delete) the objects in this
   MIB module.

   Implementation should provide the security features described by the
   SNMPv3 framework (see [RFC3410]), and implementations claiming
   compliance to the SNMPv3 standard MUST include full support for
   authentication and privacy via the User-based Security Model (USM)
   [RFC3414] with the AES cipher algorithm [RFC3826].  Implementations
   MAY also provide support for the Transport Security Model (TSM)
   [RFC5591] in combination with a secure transport such as SSH
   [RFC5592] or TLS/DTLS [RFC6353].

   Further, deployment of SNMP versions prior to SNMPv3 is NOT
   RECOMMENDED.  Instead, it is RECOMMENDED to deploy SNMPv3 and to
   enable cryptographic security.  It is then a customer/operator
   responsibility to ensure that the SNMP entity giving access to an
   instance of this MIB module is properly configured to give only those

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   principals (users) that have legitimate rights to indeed GET or SET
   (change/create/delete) them.

9.  IANA Considerations

   The MIB module in this document uses the following IANA-assigned
   OBJECT IDENTIFIER value recorded in the SMI Numbers registry:

   Descriptor   OBJECT   IDENTIFIER  value
   ----------------------------------------
   trillOamMIB  { mib-2 238 }

10.  References

10.1.  Normative References

   [802.1Q]    IEEE, "IEEE Standard for Local and metropolitan area
               networks -- Media Access Control (MAC) Bridges and
               Virtual Bridge Local Area Networks", IEEE Std
               802.1Q-2011, DOI 10.1109/IEEESTD.2011.6009146.

   [IEEE8021-CFM-MIB]
               IEEE, "Connectivity Fault Management module for managing
               IEEE 802.1ag", IEEE 802.1ag, October 2008,
               <http://www.ieee802.org/1/files/public/MIBs/IEEE8021-CFM-
               MIB-200810150000Z.txt>.

   [LLDP-MIB]  IEEE, "Management Information Base module for LLDP
               configuration, statistics, local system data and remote
               systems data components", IEEE 802.1AB, May 2005,
               <http://www.ieee802.org/1/files/public/MIBs/
               LLDP-MIB-200505060000Z.txt>.

   [RFC2119]   Bradner, S., "Key words for use in RFCs to Indicate
               Requirement
                Levels", BCP 14, RFC 2119, DOI 10.17487/RFC2119, March
               1997, <http://www.rfc-editor.org/info/rfc2119>.

   [RFC2578]   McCloghrie, K., Ed., Perkins, D., Ed., and J.
               Schoenwaelder, Ed., "Structure of Management Information
               Version 2 (SMIv2)", STD 58, RFC 2578,
               DOI 10.17487/RFC2578, April 1999,
               <http://www.rfc-editor.org/info/rfc2578>.

   [RFC2579]   McCloghrie, K., Ed., Perkins, D., Ed., and J.
               Schoenwaelder, Ed., "Textual Conventions for SMIv2", STD
               58, RFC 2579, DOI 10.17487/RFC2579, April 1999,
               <http://www.rfc-editor.org/info/rfc2579>.

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   [RFC2580]   McCloghrie, K., Ed., Perkins, D., Ed., and J.
               Schoenwaelder, Ed., "Conformance Statements for SMIv2",
               STD 58, RFC 2580, DOI 10.17487/RFC2580, April 1999,
               <http://www.rfc-editor.org/info/rfc2580>.

   [RFC3414]   Blumenthal, U. and B. Wijnen, "User-based Security Model
               (USM) for version 3 of the Simple Network Management
               Protocol (SNMPv3)", STD 62, RFC 3414,
               DOI 10.17487/RFC3414, December 2002,
               <http://www.rfc-editor.org/info/rfc3414>.

   [RFC3826]   Blumenthal, U., Maino, F., and K. McCloghrie, "The
               Advanced Encryption Standard (AES) Cipher Algorithm in
               the SNMP User-based Security Model", RFC 3826,
               DOI 10.17487/RFC3826, June 2004,
               <http://www.rfc-editor.org/info/rfc3826>.

   [RFC5591]   Harrington, D. and W. Hardaker, "Transport Security Model
               for the Simple Network Management Protocol (SNMP)",
               STD 78, RFC 5591, DOI 10.17487/RFC5591, June 2009,
               <http://www.rfc-editor.org/info/rfc5591>.

   [RFC5592]   Harrington, D., Salowey, J., and W. Hardaker, "Secure
               Shell Transport Model for the Simple Network Management
               Protocol (SNMP)", RFC 5592, DOI 10.17487/RFC5592, June
               2009, <http://www.rfc-editor.org/info/rfc5592>.

   [RFC6325]   Perlman, R., Eastlake 3rd, D., Dutt, D., Gai, S., and A.
               Ghanwani, "Routing Bridges (RBridges): Base Protocol
               Specification", RFC 6325, DOI 10.17487/RFC6325, July
               2011, <http://www.rfc-editor.org/info/rfc6325>.

   [RFC6353]   Hardaker, W., "Transport Layer Security (TLS) Transport
               Model for the Simple Network Management Protocol (SNMP)",
               STD 78, RFC 6353, DOI 10.17487/RFC6353, July 2011,
               <http://www.rfc-editor.org/info/rfc6353>.

   [RFC7172]   Eastlake 3rd, D., Zhang, M., Agarwal, P., Perlman, R.,
               and D. Dutt, "Transparent Interconnection of Lots of
               Links (TRILL): Fine-Grained Labeling", RFC 7172,
               DOI 10.17487/RFC7172, May 2014,
               <http://www.rfc-editor.org/info/rfc7172>.

   [RFC7455]   Senevirathne, T., Finn, N., Salam, S., Kumar, D.,
               Eastlake 3rd, D., Aldrin, S., and Y. Li, "Transparent
               Interconnection of Lots of Links (TRILL): Fault
               Management", RFC 7455, DOI 10.17487/RFC7455, March 2015,
               <http://www.rfc-editor.org/info/rfc7455>.

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10.2.  Informative References

   [Q.840.1]  ITU-T, "Requirements and analysis for NMS-EMS management
               interface of Ethernet over Transport and Metro Ethernet
               Network (EoT/MEN)", Recommendation Q.840.1, March 2007.

   [RFC3410]   Case, J., Mundy, R., Partain, D., and B. Stewart,
               "Introduction and Applicability Statements for Internet-
               Standard Management Framework", RFC 3410,
               DOI 10.17487/RFC3410, December 2002,
               <http://www.rfc-editor.org/info/rfc3410>.

   [RFC6905]   Senevirathne, T., Bond, D., Aldrin, S., Li, Y., and R.
               Watve, "Requirements for Operations, Administration, and
               Maintenance (OAM) in Transparent Interconnection of Lots
               of Links (TRILL)", RFC 6905, DOI 10.17487/RFC6905, March
               2013, <http://www.rfc-editor.org/info/rfc6905>.

   [RFC7174]   Salam, S., Senevirathne, T., Aldrin, S., and D. Eastlake
               3rd, "Transparent Interconnection of Lots of Links
               (TRILL) Operations, Administration, and Maintenance (OAM)
               Framework", RFC 7174, DOI 10.17487/RFC7174, May 2014,
               <http://www.rfc-editor.org/info/rfc7174>.

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Acknowledgments

   We wish to thank members of the IETF TRILL WG and the MIB Doctors for
   their comments and suggestions.  Detailed comments were provided by
   Sam Aldrin, Donald Eastlake, Tom Taylor, and Harrie Hazewinkel.

Authors' Addresses

   Deepak Kumar
   Cisco
   510 McCarthy Blvd.
   Milpitas, CA 95035
   United States

   Phone : +1 408-853-9760
   Email: dekumar@cisco.com


   Samer Salam
   Cisco
   595 Burrard St.
   Suite 2123
   Vancouver, BC V7X 1J1
   Canada

   Email: ssalam@cisco.com


   Tissa Senevirathne
   Consultant

   Email: tsenevir@gmail.com