rfc2024.txt

<VC++网络游戏建摸与实现>源代码

--     Origin:   the end station which initiates the circuit.
--     Target:   the end station which receives the initiation.
--
-- (6) Link Station:
--     It is one end of an LLC-2 connection. It performs error
--     recovery procedure, retries, and various timers.
--     DLSw terminates LLC-2 connection at each end of DLSw nodes,
--     thus, keepAlive and error recovery on LLC-2 connections are
--     kept to each side of LAN and do not flow through the WAN.
--     A link station is substantiated when SABME is sent/received.
--     All link stations have circuits, but not all circuits
--     have link stations.
--
-- Key assumptions are:
-- (1) The MIB is designed to manage a single DLSw entity.
--
-- (2) A DLSw may support various types of transport connections.
--     - This DLSw MIB module does not restrict the possibility to
--       have, at any given moment, more than one "transport
--       connection" defined or active between two DLSw's.
--     - However, current DLSw architecture does not provide a mechanism,
--       e.g., DLSw host name, to prevent two transport connections of
--       different types between the same two DLSw's.
--
-- (3) This MIB assumes that interface MIB is implemented.  ifIndex
--     is used in this MIB module.
--
-- (4) This MIB assumes that the SDLC MIB (or an equivalent enterprise
--     specific MIB) is implemented, since SDLC-specific objects
--     are not duplicated here.
--
-- (5) This MIB assumes that the LLC-2 MIB (or an equivalent enterprise
--     specific MIB) is implemented, since LLC-related objects are not
--     duplicated here.
--
-- (6) All MACs, SAPs, Ring numbers, ... are in non-canonical form.
--     That is, the most significant bit will be transmitted first.
--
-- *******************************************************************

DLSW-MIB DEFINITIONS ::= BEGIN

IMPORTS
        DisplayString, RowStatus,
        RowPointer, TruthValue,
        TEXTUAL-CONVENTION                FROM SNMPv2-TC



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        Counter32, Gauge32, TimeTicks,
        OBJECT-TYPE, MODULE-IDENTITY,
        NOTIFICATION-TYPE                 FROM SNMPv2-SMI
        MODULE-COMPLIANCE, OBJECT-GROUP,
        NOTIFICATION-GROUP                FROM SNMPv2-CONF
        ifIndex                           FROM IF-MIB
        sdlcLSAddress                     FROM SNA-SDLC-MIB;

dlsw MODULE-IDENTITY
    LAST-UPDATED  "9606040900Z"
    ORGANIZATION  "AIW DLSw MIB RIGLET and IETF DLSw MIB Working Group"
    CONTACT-INFO
                  "David D. Chen
                   IBM Corporation
                   800 Park, Highway 54
                   Research Triangle Park, NC 27709-9990
                   Tel:    [phone]
                   E-mail: [e-mail]"
   DESCRIPTION
        "This MIB module contains objects to manage Data Link
         Switches."
::= { mib-2 46 }

dlswMIB         OBJECT IDENTIFIER ::= { dlsw 1 }
dlswDomains     OBJECT IDENTIFIER ::= { dlsw 2 }

-- *******************************************************************
-- Textual convention definitions
-- *******************************************************************

NBName ::= TEXTUAL-CONVENTION
    STATUS       current
    DESCRIPTION
       "Represents a single qualified NetBIOS name, which can include
        `don't care' and `wildcard' characters to represent a number
        of real NetBIOS names.  If an individual character position in
        the qualified name contains a `?', the corresponding character
        position in a real NetBIOS name is a `don't care'.  If the
        qualified name ends in `*', the remainder of a real NetBIOS
        name is a `don't care'. `*' is only considered a wildcard if it
        appears at the end of a name."
    SYNTAX  OCTET STRING (SIZE (0..16))

MacAddressNC ::= TEXTUAL-CONVENTION
    DISPLAY-HINT "1x:"
    STATUS       current
    DESCRIPTION
       "Represents an 802 MAC address represented in



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        non-canonical format.  That is, the most significant
        bit will be transmitted first.  If this information
        is not available, the value is a zero length string."
    SYNTAX       OCTET STRING (SIZE (0 | 6))

TAddress ::= TEXTUAL-CONVENTION
    STATUS  current
    DESCRIPTION
       "Denotes a transport service address.
        For dlswTCPDomain, a TAddress is 4 octets long,
        containing the IP-address in network-byte order."
    SYNTAX  OCTET STRING (SIZE (0..255))

EndStationLocation ::= TEXTUAL-CONVENTION
    STATUS  current
    DESCRIPTION
       "Representing the location of an end station related
        to the managed DLSw node."
    SYNTAX  INTEGER  {
                other          (1),
                internal       (2),  -- local virtual MAC address
                remote         (3),  -- via DLSw partner
                local          (4)   -- locally attached
            }

DlcType ::= TEXTUAL-CONVENTION
    STATUS  current
    DESCRIPTION
       "Representing the type of DLC of an end station, if
        applicable."
    SYNTAX  INTEGER  {
                other          (1),  -- not assigned yet
                na             (2),  -- not applicable
                llc            (3),  -- 802.2 Logical Link Control
                sdlc           (4),  -- SDLC
                qllc           (5)   -- QLLC
            }

LFSize  ::= TEXTUAL-CONVENTION
    STATUS  current
    DESCRIPTION
       "The largest size of the INFO field (including DLC header,
        not including any MAC-level or framing octets).
        64 valid values as defined by the IEEE 802.1D
        Addendum are acceptable."
    SYNTAX  INTEGER  {
               lfs516(516), lfs635(635), lfs754(754), lfs873(873),
               lfs993(993), lfs1112(1112), lfs1231(1231),



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               lfs1350(1350), lfs1470(1470), lfs1542(1542),
               lfs1615(1615), lfs1688(1688), lfs1761(1761),
               lfs1833(1833), lfs1906(1906), lfs1979(1979),
               lfs2052(2052), lfs2345(2345), lfs2638(2638),
               lfs2932(2932), lfs3225(3225), lfs3518(3518),
               lfs3812(3812), lfs4105(4105), lfs4399(4399),
               lfs4865(4865), lfs5331(5331), lfs5798(5798),
               lfs6264(6264), lfs6730(6730), lfs7197(7197),
               lfs7663(7663), lfs8130(8130), lfs8539(8539),
               lfs8949(8949), lfs9358(9358), lfs9768(9768),
               lfs10178(10178), lfs10587(10587), lfs10997(10997),
               lfs11407(11407), lfs12199(12199), lfs12992(12992),
               lfs13785(13785), lfs14578(14578), lfs15370(15370),
               lfs16163(16163), lfs16956(16956), lfs17749(17749),
               lfs20730(20730), lfs23711(23711), lfs26693(26693),
               lfs29674(29674), lfs32655(32655), lfs38618(38618),
               lfs41600(41600), lfs44591(44591), lfs47583(47583),
               lfs50575(50575), lfs53567(53567), lfs56559(56559),
               lfs59551(59551), lfs65535(65535)
            }

null OBJECT IDENTIFIER ::= { 0 0 }


-- *******************************************************************
-- DLSw Transport Domain definitions
-- *******************************************************************

-- DLSw over TCP
dlswTCPDomain  OBJECT IDENTIFIER ::= { dlswDomains 1 }
-- for an IP address of length 4:
--
-- octets   contents        encoding
--  1-4     IP-address      network-byte order
--
DlswTCPAddress ::= TEXTUAL-CONVENTION
    DISPLAY-HINT "1d.1d.1d.1d"
    STATUS       current
    DESCRIPTION
            "Represents the IP address of a DLSw which uses
             TCP as a transport protocol."
    SYNTAX       OCTET STRING (SIZE (4))


-- *******************************************************************
-- DLSw MIB Definition
-- *******************************************************************




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-- The DLSw MIB module contains an object part and a conformance part.
-- Object part is organized in the following groups:
-- (1) dlswNode      -- information about this DLSw
-- (2) dlswTConn     -- about adjacent DLSw partners
-- (3) dlswInterface -- about which interfaces DLSw is active on
-- (4) dlswDirectory -- about any directory of local/remote resources
-- (5) dlswCircuit   -- about established circuits.
-- (6) dlswSdlc      -- about SDLC data link switched devices

dlswNode        OBJECT IDENTIFIER ::= { dlswMIB 1 }
dlswTConn       OBJECT IDENTIFIER ::= { dlswMIB 2 }
dlswInterface   OBJECT IDENTIFIER ::= { dlswMIB 3 }
dlswDirectory   OBJECT IDENTIFIER ::= { dlswMIB 4 }
dlswCircuit     OBJECT IDENTIFIER ::= { dlswMIB 5 }
dlswSdlc        OBJECT IDENTIFIER ::= { dlswMIB 6 }  -- SDLC

-- *******************************************************************
-- THE NODE GROUP
-- *******************************************************************

-- -------------------------------------------------------------------
-- DLSw Node Identity
-- -------------------------------------------------------------------
dlswNodeVersion  OBJECT-TYPE
    SYNTAX     OCTET STRING (SIZE (2))
    MAX-ACCESS read-only
    STATUS     current
    DESCRIPTION
       "This value identifies the particular version of the DLSw
        standard supported by this DLSw.  The first octet is a
        hexadecimal value representing the DLSw standard Version
        number of this DLSw, and the second is a hexadecimal value
        representing the DLSw standard Release number. This
        information is reported in DLSw Capabilities Exchange."
    REFERENCE
       "DLSW: Switch-to-Switch Protocol RFC 1795"
    ::= { dlswNode 1 }

dlswNodeVendorID  OBJECT-TYPE
    SYNTAX     OCTET STRING (SIZE (3))
    MAX-ACCESS read-only
    STATUS     current
    DESCRIPTION
       "The value identifies the manufacturer's IEEE-assigned
        organizationally Unique Identifier (OUI) of this DLSw.
        This information is reported in DLSw Capabilities
        Exchange."
    REFERENCE



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       "DLSW: Switch-to-Switch Protocol RFC 1795"
    ::= { dlswNode 2 }

dlswNodeVersionString  OBJECT-TYPE
    SYNTAX     DisplayString
    MAX-ACCESS read-only
    STATUS     current
    DESCRIPTION
       "This string gives product-specific information about
        this DLSw (e.g., product name, code release and fix level).
        This flows in Capabilities Exchange messages."
    REFERENCE
       "DLSW: Switch-to-Switch Protocol RFC 1795"
    ::= { dlswNode 3 }

-- -------------------------------------------------------------------
-- DLSw Code Capability
-- -------------------------------------------------------------------
dlswNodeStdPacingSupport  OBJECT-TYPE
    SYNTAX     INTEGER  {
       none              (1),  -- does not support DLSw
                               -- Standard pacing scheme
       adaptiveRcvWindow (2),  -- the receive window size
                               -- varies
       fixedRcvWindow    (3)   -- the receive window size
                               -- remains constant
    }
    MAX-ACCESS read-only
    STATUS     current
    DESCRIPTION
       "Circuit pacing, as defined in the DLSw Standard, allows each
        of the two DLSw nodes on a circuit to control the amount
        of data the other is permitted to send to them.  This object
        reflects the level of support the DLSw node has for this
        protocol.  (1) means the node has no support for the standard
        circuit pacing flows;  it may use RFC 1434+ methods only, or
        a proprietary flow control scheme.  (2) means the node supports
        the standard scheme and can vary the window sizes it grants as
        a data receiver.  (3) means the node supports the standard
        scheme but never varies its receive window size."
    ::= { dlswNode 4 }

-- -------------------------------------------------------------------
-- DLSw Node Operational Objects
-- -------------------------------------------------------------------
dlswNodeStatus  OBJECT-TYPE
    SYNTAX     INTEGER  {
        active        (1),



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        inactive      (2)
    }
    MAX-ACCESS read-write
    STATUS     current
    DESCRIPTION
       "The status of the DLSw part of the system.  Changing the