if-mib.mib

EPON MIB库源码

   --
   -- Implementation of this group is mandatory for all systems
   --

   ifStackTable  OBJECT-TYPE
        SYNTAX        SEQUENCE OF IfStackEntry
        MAX-ACCESS    not-accessible
        STATUS        current
        DESCRIPTION
               "The table containing information on the relationships
               between the multiple sub-layers of network interfaces.
               In particular, it contains information on which sub-
               layers run 'on top of' which other sub-layers, where
               each sub-layer corresponds to a conceptual row in the
               ifTable.  For example, when the sub-layer with ifIndex
               value x runs over the sub-layer with ifIndex value y,
               then this table contains:

                 ifStackStatus.x.y=active

               For each ifIndex value, I, which identifies an active
               interface, there are always at least two instantiated
               rows in this table associated with I.  For one of
               these rows, I is the value of ifStackHigherLayer; for
               the other, I is the value of ifStackLowerLayer.  (If I
               is not involved in multiplexing, then these are the
               only two rows associated with I.)

               For example, two rows exist even for an interface
               which has no others stacked on top or below it:

                 ifStackStatus.0.x=active
                 ifStackStatus.x.0=active "
        ::= { ifMIBObjects 2 }


   ifStackEntry  OBJECT-TYPE
        SYNTAX        IfStackEntry
        MAX-ACCESS    not-accessible
        STATUS        current
        DESCRIPTION
               "Information on a particular relationship between two
               sub-layers, specifying that one sub-layer runs on
               'top' of the other sub-layer.  Each sub-layer
               corresponds to a conceptual row in the ifTable."
        INDEX { ifStackHigherLayer, ifStackLowerLayer }
        ::= { ifStackTable 1 }


   IfStackEntry ::=
       SEQUENCE {
           ifStackHigherLayer  Integer32,
           ifStackLowerLayer   Integer32,
           ifStackStatus       RowStatus
        }

   ifStackHigherLayer  OBJECT-TYPE
        SYNTAX        Integer32
        MAX-ACCESS    not-accessible
        STATUS        current
        DESCRIPTION
               "The value of ifIndex corresponding to the higher
               sub-layer of the relationship, i.e., the sub-layer
               which runs on 'top' of the sub-layer identified by the
               corresponding instance of ifStackLowerLayer.  If there
               is no higher sub-layer (below the internetwork layer),
               then this object has the value 0."
        ::= { ifStackEntry 1 }


   ifStackLowerLayer  OBJECT-TYPE
        SYNTAX        Integer32
        MAX-ACCESS    not-accessible
        STATUS        current
        DESCRIPTION
               "The value of ifIndex corresponding to the lower sub-
               layer of the relationship, i.e., the sub-layer which
               runs 'below' the sub-layer identified by the
               corresponding instance of ifStackHigherLayer.  If
               there is no lower sub-layer, then this object has the
               value 0."
        ::= { ifStackEntry 2 }


   ifStackStatus  OBJECT-TYPE
       SYNTAX         RowStatus
       MAX-ACCESS     read-create
       STATUS         current
       DESCRIPTION
               "The status of the relationship between two sub-
               layers.

               Changing the value of this object from 'active' to
               'notInService' or 'destroy' will likely have
               consequences up and down the interface stack.  Thus,
               write access to this object is likely to be
               inappropriate for some types of interfaces, and many
               implementations will choose not to support write-
               access for any type of interface."
       ::= { ifStackEntry 3 }

   ifStackLastChange OBJECT-TYPE
       SYNTAX         TimeTicks
       MAX-ACCESS     read-only
       STATUS         current
       DESCRIPTION
               "The value of sysUpTime at the time of the last change
               of the (whole) interface stack.  A change of the
               interface stack is defined to be any creation,
               deletion, or change in value of any instance of
               ifStackStatus.  If the interface stack has been
               unchanged since the last re-initialization of the
               local network management subsystem, then this object
               contains a zero value."
       ::= { ifMIBObjects 6 }


   --   Generic Receive Address Table
   --
   -- This group of objects is mandatory for all types of
   -- interfaces which can receive packets/frames addressed to
   -- more than one address.
   --
   -- This table replaces the ifExtnsRcvAddr table.  The main
   -- difference is that this table makes use of the RowStatus
   -- textual convention, while ifExtnsRcvAddr did not.

   ifRcvAddressTable  OBJECT-TYPE
       SYNTAX      SEQUENCE OF IfRcvAddressEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
               "This table contains an entry for each address
               (broadcast, multicast, or uni-cast) for which the
               system will receive packets/frames on a particular
               interface, except as follows:

               - for an interface operating in promiscuous mode,
               entries are only required for those addresses for
               which the system would receive frames were it not
               operating in promiscuous mode.

               - for 802.5 functional addresses, only one entry is
               required, for the address which has the functional
               address bit ANDed with the bit mask of all functional
               addresses for which the interface will accept frames.

               A system is normally able to use any unicast address
               which corresponds to an entry in this table as a
               source address."
       ::= { ifMIBObjects 4 }

   ifRcvAddressEntry  OBJECT-TYPE
       SYNTAX      IfRcvAddressEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
               "A list of objects identifying an address for which
               the system will accept packets/frames on the
               particular interface identified by the index value
               ifIndex."
       INDEX  { ifIndex, ifRcvAddressAddress }
       ::= { ifRcvAddressTable 1 }

   IfRcvAddressEntry ::=
       SEQUENCE {
           ifRcvAddressAddress   PhysAddress,
           ifRcvAddressStatus    RowStatus,
           ifRcvAddressType      INTEGER
       }

   ifRcvAddressAddress OBJECT-TYPE
       SYNTAX      PhysAddress
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
               "An address for which the system will accept
               packets/frames on this entry's interface."

       ::= { ifRcvAddressEntry 1 }

   ifRcvAddressStatus OBJECT-TYPE
       SYNTAX      RowStatus
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
               "This object is used to create and delete rows in the
               ifRcvAddressTable."

       ::= { ifRcvAddressEntry 2 }

   ifRcvAddressType OBJECT-TYPE
       SYNTAX      INTEGER {
                       other(1),
                       volatile(2),
                       nonVolatile(3)
                   }

       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
               "This object has the value nonVolatile(3) for those
               entries in the table which are valid and will not be
               deleted by the next restart of the managed system.
               Entries having the value volatile(2) are valid and
               exist, but have not been saved, so that will not exist
               after the next restart of the managed system.  Entries
               having the value other(1) are valid and exist but are
               not classified as to whether they will continue to
               exist after the next restart."

       DEFVAL  { volatile }
       ::= { ifRcvAddressEntry 3 }

   -- definition of interface-related traps.

   linkDown NOTIFICATION-TYPE
           OBJECTS { ifIndex, ifAdminStatus, ifOperStatus }
           STATUS  current
           DESCRIPTION
               "A linkDown trap signifies that the SNMPv2 entity,
               acting in an agent role, has detected that the
               ifOperStatus object for one of its communication links
               is about to enter the down state from some other state
               (but not from the notPresent state).  This other state
               is indicated by the included value of ifOperStatus."
       ::= { snmpTraps 3 }

   linkUp NOTIFICATION-TYPE
           OBJECTS { ifIndex, ifAdminStatus, ifOperStatus }
           STATUS  current
           DESCRIPTION
               "A linkDown trap signifies that the SNMPv2 entity,
               acting in an agent role, has detected that the
               ifOperStatus object for one of its communication links
               left the down state and transitioned into some other
               state (but not into the notPresent state).  This other
               state is indicated by the included value of
               ifOperStatus."
       ::= { snmpTraps 4 }

   -- conformance information

   ifConformance OBJECT IDENTIFIER ::= { ifMIB 2 }

   ifGroups      OBJECT IDENTIFIER ::= { ifConformance 1 }
   ifCompliances OBJECT IDENTIFIER ::= { ifConformance 2 }

   -- compliance statements

   ifCompliance2 MODULE-COMPLIANCE
       STATUS  current
       DESCRIPTION
               "The compliance statement for SNMPv2 entities which
               have network interfaces."

       MODULE  -- this module
           MANDATORY-GROUPS { ifGeneralInformationGroup, ifStackGroup2,
                              ifCounterDiscontinuityGroup }

           GROUP       ifFixedLengthGroup
           DESCRIPTION
               "This group is mandatory for all network interfaces
               which are character-oriented or transmit data in
               fixed-length transmission units."

           GROUP       ifHCFixedLengthGroup
           DESCRIPTION
               "This group is mandatory only for those network
               interfaces which are character-oriented or transmit
               data in fixed-length transmission units, and for which
               the value of the corresponding instance of ifSpeed is
               greater than 20,000,000 bits/second."

           GROUP       ifPacketGroup
           DESCRIPTION
               "This group is mandatory for all network interfaces
               which are packet-oriented."

           GROUP       ifHCPacketGroup
           DESCRIPTION
               "This group is mandatory only for those network
               interfaces which are packet-oriented and for which the
               value of the corresponding instance of ifSpeed is
               greater than 650,000,000 bits/second."

           GROUP       ifRcvAddressGroup
           DESCRIPTION
               "The applicability of this group MUST be defined by
               the media-specific MIBs.  Media-specific MIBs must
               define the exact meaning, use, and semantics of the
               addresses in this group."
           OBJECT      ifLinkUpDownTrapEnable
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access is not required."

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

           OBJECT      ifStackStatus
           SYNTAX      INTEGER { active(1) } -- subset of RowStatus
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access is not required, and only one of the six
               enumerated values for the RowStatus textual convention
               need be supported, specifically: active(1)."