rfc2613.txt

RFC 的详细文档！

                Email: [e-mail]

                Bill Lahaye
                Xylan Corp.
                Tel: [phone]
                Email:  [e-mail]

                Dan Romascanu
                Lucent Technologies
                Tel:  [phone]
                Email: [e-mail]

                Steven Waldbusser
                International Network Services (INS)
                Tel: [phone]
                Email: [e-mail]"

        DESCRIPTION
                "The MIB module for managing remote monitoring device
                 implementations for Switched Networks"



Waterman, et al.            Standards Track                    [Page 13]

RFC 2613                        SMON MIB                       June 1999


         -- revision history

        REVISION    "9812160000Z"     -- 16 Dec 1998 midemight
        DESCRIPTION "Initial Version, published as RFC 2613."

        ::= { rmon 22 }

   smonMIBObjects OBJECT IDENTIFIER ::= { switchRMON 1 }

   dataSourceCaps          OBJECT IDENTIFIER ::= {smonMIBObjects 1}
   smonStats               OBJECT IDENTIFIER ::= {smonMIBObjects 2}
   portCopyConfig          OBJECT IDENTIFIER ::= {smonMIBObjects 3}
   smonRegistrationPoints  OBJECT IDENTIFIER ::= {smonMIBObjects 4}

   -- Textual Conventions
   --

   SmonDataSource ::= TEXTUAL-CONVENTION
    STATUS        current
    DESCRIPTION
        "Identifies the source of the data that the associated function
         is configured to analyze. This Textual Convention
         extends the DataSource Textual Convention defined by RMON 2
         to the following data source types:

         - ifIndex.<I>
         DataSources of this traditional form are called 'port-based',
         but only if ifType.<I> is not equal to 'propVirtual(53)'.

         - smonVlanDataSource.<V>
         A dataSource of this form refers to a 'Packet-based VLAN'
         and is called a 'VLAN-based' dataSource. <V> is the VLAN
         ID as defined by the IEEE 802.1Q standard [19]. The
         value is between 1 and 4094 inclusive, and it represents
         an 802.1Q VLAN-ID with global scope within a given
         bridged domain, as defined by [19].

        - entPhysicalEntry.<N>
         A dataSource of this form refers to a physical entity within
         the agent (e.g. entPhysicalClass = backplane(4)) and is called
         an 'entity-based' dataSource."
    SYNTAX      OBJECT IDENTIFIER

   -- The smonCapabilities object describes SMON agent capabilities.

   smonCapabilities OBJECT-TYPE
    SYNTAX BITS {
      smonVlanStats(0),



Waterman, et al.            Standards Track                    [Page 14]

RFC 2613                        SMON MIB                       June 1999


      smonPrioStats(1),
      dataSource(2),
      smonUnusedBit(3),
      portCopy(4)
      }
    MAX-ACCESS read-only
    STATUS current
    DESCRIPTION
        "An indication of the SMON MIB groups supported
         by this agent."
    ::= { probeConfig  15 }

   -- dataSourceCaps MIB group - defines SMON data source and port
   -- copy capabilities for devices supporting SMON.

   -- A NMS application will check this MIB group and retrieve
   -- information about the SMON capabilities of the device before
   -- applying SMON control operations to the device.


   -- dataSourceCapsTable: defines capabilities of RMON data sources

   dataSourceCapsTable OBJECT-TYPE
    SYNTAX      SEQUENCE OF DataSourceCapsEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "This table describes RMON data sources and port copy
        capabilities. An NMS MAY use this table to discover the
        identity and attributes of the data sources on a given agent
        implementation. Similar to the probeCapabilities object,
        actual row-creation operations will succeed or fail based on
        the resources available and parameter values used in each
        row-creation operation.

        Upon restart of the RMON agent, the dataSourceTable, ifTable,
        and perhaps entPhysicalTable are initialized for the available
        dataSources.

        For each dataSourceCapsEntry representing a VLAN or
        entPhysicalEntry the agent MUST create an associated ifEntry
        with a ifType value of 'propVirtual(53)'. This ifEntry will be
        used as the actual value in RMON control table dataSource
        objects. The assigned ifIndex value is copied into the
        associated dataSourceCapsIfIndex object.

        It is understood that dataSources representing VLANs may not
        always be instantiated immediately upon restart, but rather as



Waterman, et al.            Standards Track                    [Page 15]

RFC 2613                        SMON MIB                       June 1999


        VLAN usage is detected by the agent. The agent SHOULD attempt
        to create dataSource and interface entries for all dataSources
        as soon as possible."
   ::= { dataSourceCaps 1 }

   dataSourceCapsEntry  OBJECT-TYPE
    SYNTAX      DataSourceCapsEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "Entries per data source containing descriptions of data
         source and port copy capabilities. This table is populated by
         the SMON agent with one entry for each supported data
         source."
   INDEX { IMPLIED dataSourceCapsObject }
   ::= { dataSourceCapsTable 1 }

   DataSourceCapsEntry ::= SEQUENCE {
        dataSourceCapsObject
                SmonDataSource,
        dataSourceRmonCaps
                BITS,
        dataSourceCopyCaps
                BITS,
        dataSourceCapsIfIndex
                InterfaceIndex
        }

   dataSourceCapsObject OBJECT-TYPE
    SYNTAX      SmonDataSource
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "Defines an object that can be a SMON data source or a
          source or a destination for a port copy operation."
    ::= { dataSourceCapsEntry 1  }

   dataSourceRmonCaps OBJECT-TYPE
    SYNTAX BITS {
           countErrFrames(0),
           countAllGoodFrames(1),
           countAnyRmonTables(2),
           babyGiantsCountAsGood(3)
           }
    MAX-ACCESS read-only
    STATUS current
    DESCRIPTION




Waterman, et al.            Standards Track                    [Page 16]

RFC 2613                        SMON MIB                       June 1999


        " General attributes of the specified dataSource. Note that
        these are static attributes, which SHOULD NOT be adjusted
        because of current resources or configuration.

      - countErrFrames(0)
          The agent sets this bit for the dataSource if errored frames
          received on this dataSource can actually be monitored by the
          agent The agent clears this bit if any errored frames are
          not visible to the RMON data collector.

      - countAllGoodFrames(1)
          The agent sets this bit for the dataSource if all good
          frames received on this dataSource can actually be monitored
          by the agent. The agent clears this bit if any good frames
          are not visible for RMON collection, e.g., the dataSource is
          a non-promiscuous interface or an internal switch interface
          which may not receive frames which were switched in hardware
          or dropped by the bridge forwarding function.

      - countAnyRmonTables(2)
          The agent sets this bit if this dataSource can actually be
          used in any of the implemented RMON tables, resources
          notwithstanding. The agent clears this bit if this
          dataSourceCapsEntry is present simply to identify a
          dataSource that may only be used as portCopySource and/or a
          portCopyDest, but not the source of an actual RMON data
          collection.

      - babyGiantsCountAsGood(3)
          The agent sets this bit if it can distinguish, for counting
          purposes, between true giant frames and frames that exceed
          Ethernet maximum frame size 1518 due to VLAN tagging ('baby
          giants'). Specifically, this BIT means that frames up to
          1522 octets are counted as good.

          Agents not capable of detecting 'baby giants' will clear
          this bit and will view all frames less than or equal to 1518
          octets as 'good frames' and all frames larger than 1518
          octets as 'bad frames' for the purpose of counting in the
          smonVlanIdStats and smonPrioStats tables.

          Agents capable of detecting 'baby giants' SHALL consider
          them as 'good frames' for the purpose of counting in the
          smonVlanIdStats and smonPrioStats tables."

    ::= { dataSourceCapsEntry 2  }

   dataSourceCopyCaps OBJECT-TYPE



Waterman, et al.            Standards Track                    [Page 17]

RFC 2613                        SMON MIB                       June 1999


    SYNTAX BITS {
        copySourcePort(0),
        copyDestPort(1),
        copySrcTxTraffic(2),
        copySrcRxTraffic(3),
        countDestDropEvents(4),
        copyErrFrames(5),
        copyUnalteredFrames(6),
        copyAllGoodFrames(7)
        }
    MAX-ACCESS   read-only
    STATUS       current
    DESCRIPTION
        "PortCopy function capabilities of the specified dataSource.
    Note that these are static capabilities, which SHOULD NOT be
    adjusted because of current resources or configuration.

      - copySourcePort(0)
          The agent sets this bit if this dataSource is capable of
          acting as a source of a portCopy operation. The agent clears
          this bit otherwise.

      - copyDestPort(1)
          The agent sets this bit if this dataSource is capable of
          acting as a destination of a portCopy operation. The agent
          clears this bit otherwise.

     - copySrcTxTraffic(2)
          If the copySourcePort bit is set:
                The agent sets this bit if this dataSource is capable of
              copying frames transmitted out this portCopy source. The
              agent clears this bit otherwise. This function is needed
              to support full-duplex ports.
           Else:
               this bit SHOULD be cleared.

      - copySrcRxTraffic(3)
          If the copySourcePort bit is set:
            The agent sets this bit if this dataSource is capable of
            copying frames received on this portCopy source. The agent
            clears this bit otherwise. This function is needed to
            support full-duplex ports.
          Else:
            this bit SHOULD be cleared.

      - countDestDropEvents(4)
          If the copyDestPort bit is set:
              The agent sets this bit if it is capable of incrementing



Waterman, et al.            Standards Track                    [Page 18]

RFC 2613                        SMON MIB                       June 1999


              portCopyDestDropEvents, when this dataSource is the
              target of a portCopy operation and a frame destined to
              this dataSource is dropped (for RMON counting purposes).
          Else:
              this BIT SHOULD be cleared.

      - copyErrFrames(5)
          If the copySourcePort bit is set:
              The agent sets this bit if it is capable of copying all
              errored frames from this portCopy source-port, for
              errored frames received on this dataSource.
          Else:
              this BIT SHOULD be cleared.

      - copyUnalteredFrames(6)
          If the copySourcePort bit is set:
              The agent sets the copyUnalteredFrames bit If it is
              capable of copying all frames from this portCopy
              source-port without alteration in any way;
          Else:
              this bit SHOULD be cleared.

      - copyAllGoodFrames(7)
          If the copySourcePort bit is set:
              The agent sets this bit for the dataSource if all good
              frames received on this dataSource are normally capable
              of being copied by the agent. The agent clears this bit
              if any good frames are not visible for the RMON portCopy
              operation, e.g., the dataSource is a non-promiscuous
              interface or an internal switch interface which may not
              receive frames which were switched in hardware or
              dropped by the bridge forwarding function.
           Else:
              this bit SHOULD be cleared."

    ::= { dataSourceCapsEntry 3  }

   dataSourceCapsIfIndex OBJECT-TYPE
   SYNTAX       InterfaceIndex
   MAX-ACCESS   read-only
   STATUS       current
   DESCRIPTION
        "This object contains the ifIndex value of the ifEntry
         associated with this smonDataSource. The agent MUST create
         'propVirtual' ifEntries for each dataSourceCapsEntry of type