[SNMP][MIB] Помогите разобарться.

    swSingleIPMSFirmwareVer OBJECT-TYPE
        SYNTAX  DisplayString (SIZE (0..64))
        MAX-ACCESS  read-only
        STATUS  current
        DESCRIPTION
            "Specifies the firmware version of the switch ."
        ::= { swSingleIPMSEntry 4 }

    swSingleIPMSEntry OBJECT-TYPE
        SYNTAX  SwSingleIPMSEntry
        MAX-ACCESS  not-accessible
        STATUS  current
        DESCRIPTION
            "A list of information about member switchs belongs to the single IP management group."
        INDEX  { swSingleIPMSID }
        ::= { swSingleIPMSTable 1 }

    SwSingleIPMSEntry ::=
        SEQUENCE {
            swSingleIPMSID
                INTEGER,
            swSingleIPMSDeviceName
                DisplayString,
            swSingleIPMSMacAddr
                MacAddress,
                        swSingleIPMSFirmwareVer
                DisplayString,
            swSingleIPMSCapability
                DisplayString,
            swSingleIPMSPlatform
                DisplayString,
            swSingleIPMSHoldtime
                INTEGER,
                        swSingleIPMSCasSource
                INTEGER,
                        swSingleIPMSPassword
                OCTET STRING,
            swSingleIPMSRowStatus
                RowStatus
        }

    swSingleIPMSTable OBJECT-TYPE
        SYNTAX  SEQUENCE OF SwSingleIPMSEntry
        MAX-ACCESS  not-accessible
        STATUS  current
        DESCRIPTION
            "This table contain information of member switchs which belong to the 
            single IP management group  .
             A member will be joined into the group by row creation . Before a switch joined into
             a group as a member switch , it must exist in the candidate table list .  "
        ::= { swSingleIPMgmt 3 }

swSingleIPMgmt OBJECT IDENTIFIER ::= { swSingleIPMIB 1 }

swSingleIPMIB MODULE-IDENTITY
    LAST-UPDATED "9911220000Z"
    ORGANIZATION "Working Group"
    CONTACT-INFO
        "  "
    DESCRIPTION
        "The Single IP management MIB."
    ::= { dlink-common-mgmt 8}

IMPORTS
        IpAddress
            FROM RFC1155-SMI
    ifIndex
        FROM RFC1213-MIB
    MODULE-IDENTITY, OBJECT-TYPE
        FROM SNMPv2-SMI
    DisplayString ,MacAddress, RowStatus
            FROM SNMPv2-TC
    MODULE-COMPLIANCE, OBJECT-GROUP
        FROM SNMPv2-CONF

        dlink-common-mgmt       FROM DLINK-ID-REC-MIB;

-- D-Link Common MIBs
-- DLINK-ID-REC
-- Version 1.0.12  01-29-2002

DLINK-ID-REC-MIB    DEFINITIONS ::= BEGIN
    IMPORTS
        enterprises    FROM RFC1155-SMI;


    AgentNotifyLevel ::= TEXTUAL-CONVENTION
        STATUS  current
        DESCRIPTION
                "Notification  leveling."
        SYNTAX  INTEGER {
                critical(0),
                major(1),
                minor(2),
                warning(3)
     }

    dlink                               OBJECT IDENTIFIER ::= { enterprises 171 }
    dlink-products              OBJECT IDENTIFIER ::= { dlink 10 }
    dlink-mgmt                          OBJECT IDENTIFIER ::= { dlink 11 }
    dlink-common-mgmt           OBJECT IDENTIFIER ::= { dlink 12 }





END