rfc2922.txt

<VC++网络游戏建摸与实现>源代码

              ptopoGeneralGroup,
              ptopoConfigGroup,
              ptopoNotificationsGroup
        }
    ::= { ptopoCompliances 1 }

-- MIB groupings
ptopoDataGroup   OBJECT-GROUP
    OBJECTS {
         ptopoConnRemoteChassisType,
         ptopoConnRemoteChassis,
         ptopoConnRemotePortType,
         ptopoConnRemotePort,
         ptopoConnDiscAlgorithm,
         ptopoConnAgentNetAddrType,
         ptopoConnAgentNetAddr,
         ptopoConnMultiMacSASeen,
         ptopoConnMultiNetSASeen,
         ptopoConnIsStatic,
         ptopoConnLastVerifyTime,
         ptopoConnRowStatus
    }
    STATUS  current
    DESCRIPTION
            "The collection of objects which are used to represent
            physical topology information for which a single agent
            provides management information.

            This group is mandatory for all implementations of the PTOPO
            MIB."
    ::= { ptopoGroups 1 }

ptopoGeneralGroup    OBJECT-GROUP
    OBJECTS {
         ptopoLastChangeTime,
         ptopoConnTabInserts,
         ptopoConnTabDeletes,
         ptopoConnTabDrops,
         ptopoConnTabAgeouts
    }
    STATUS  current
    DESCRIPTION
            "The collection of objects which are used to report the
            general status of the PTOPO MIB implementation.

            This group is mandatory for all agents which implement the
            PTOPO MIB."
    ::= { ptopoGroups 2 }



Bierman & Jones              Informational                     [Page 26]

RFC 2922                 Physical Topology MIB            September 2000


ptopoConfigGroup    OBJECT-GROUP
    OBJECTS {
         ptopoConfigTrapInterval,
         ptopoConfigMaxHoldTime
    }
    STATUS  current
    DESCRIPTION
            "The collection of objects which are used to configure the
            PTOPO MIB implementation behavior.

            This group is mandatory for agents which implement the PTOPO
            MIB."
    ::= { ptopoGroups 3 }

ptopoNotificationsGroup NOTIFICATION-GROUP
    NOTIFICATIONS {
         ptopoConfigChange
    }
    STATUS        current
    DESCRIPTION
            "The collection of notifications used to indicate PTOPO MIB
            data consistency and general status information.

            This group is mandatory for agents which implement the PTOPO
            MIB."
    ::= { ptopoGroups 4 }

END

5.  Intellectual Property

   The IETF takes no position regarding the validity or scope of any
   intellectual property or other rights that might be claimed to
   pertain to the implementation or use of the technology described in
   this document or the extent to which any license under such rights
   might or might not be available; neither does it represent that it
   has made any effort to identify any such rights.  Information on the
   IETF's procedures with respect to rights in standards-track and
   standards-related documentation can be found in BCP-11.  Copies of
   claims of rights made available for publication and any assurances of
   licenses to be made available, or the result of an attempt made to
   obtain a general license or permission for the use of such
   proprietary rights by implementors or users of this specification can
   be obtained from the IETF Secretariat.

   The IETF invites any interested party to bring to its attention any
   copyrights, patents or patent applications, or other proprietary
   rights which may cover technology that may be required to practice



Bierman & Jones              Informational                     [Page 27]

RFC 2922                 Physical Topology MIB            September 2000


   this standard.  Please address the information to the IETF Executive
   Director.

   The IETF has been notified of intellectual property rights claimed in
   regard to some or all of the specification contained in this
   document.  For more information consult the online list of claimed
   rights.

6.  Acknowledgements

   The PTOPO Discovery Protocol is a product of the IETF PTOPOMIB
   Working Group.

7.  References

   [RFC1155]   Rose, M. and K. McCloghrie, "Structure and Identification
               of Management Information for TCP/IP-based Internets",
               STD 16, RFC 1155, May 1990.

   [RFC1157]   Case, J., Fedor, M., Schoffstall, M. and J. Davin,
               "Simple Network Management Protocol", STD 15, RFC 1157,
               May 1990.

   [RFC1212]   Rose, M. and K. McCloghrie, "Concise MIB Definitions",
               STD 16, RFC 1212, March 1991.

   [RFC1215]   Rose, M., "A Convention for Defining Traps for use with
               the SNMP", RFC 1215, March 1991.

   [RFC1493]   Decker, E., Langille, P., Rijsinghani, A. and K.
               McCloghrie, "Definitions of Managed Objects for Bridges",
               RFC 1493, July 1993.

   [RFC1700]   Reynolds, J. and J. Postel, "Assigned Numbers", STD 2,
               RFC 1700, October 1994.

   [RFC1901]   Case, J., McCloghrie, K., Rose, M. and S. Waldbusser,
               "Introduction to Community-based SNMPv2", January 1996.

   [RFC1902]   Case, J., McCloghrie, K., Rose, M. and S. Waldbusser,
               "Structure of Management Information for version 2 of the
               Simple Network Management Protocol (SNMPv2)", RFC 1902,
               January 1996.

   [RFC1903]   Case, J., McCloghrie, K., Rose, M. and S. Waldbusser,
               "Textual Conventions for version 2 of the Simple Network
               Management Protocol (SNMPv2)", RFC 1903, January 1996.




Bierman & Jones              Informational                     [Page 28]

RFC 2922                 Physical Topology MIB            September 2000


   [RFC1904]   Case, J., McCloghrie, K., Rose, M. and S. Waldbusser,
               "Conformance Statements for version 2 of the Simple
               Network Management Protocol (SNMPv2)", RFC 1904, January
               1996.

   [RFC1905]   Case, J., McCloghrie, K., Rose, M. and S. Waldbusser,
               "Protocol Operations for Version 2 of the Simple Network
               Management Protocol (SNMPv2)", RFC 1905, January 1996.

   [RFC1906]   Case, J., McCloghrie, K., Rose, M. and S. Waldbusser,
               "Transport Mappings for Version 2 of the  Simple Network
               Management Protocol (SNMPv2)", RFC 1906, January 1996.

   [RFC2021]   Waldbusser, S., "Remote Network Monitoring MIB (RMON-2)",
               RFC 2021, January 1997.

   [RFC2037]   McCloghrie, K. and A. Bierman, "Entity MIB using SMIv2",
               RFC 2037, October 1996.

   [RFC2108]   de Graaf, K., Romascanu, D., McMaster, D. and K.
               McCloghrie, "Definitions of Managed Objects for IEEE
               802.3 Repeater Devices using SMIv2", RFC 2108, February
               1997.

   [RFC2233]   McCloghrie, K. and F. Kastenholtz, "The Interfaces Group
               MIB using SMIv2", RFC 2233, November 1997.

   [RFC2570]   Case, J., Mundy, R., Partain, D. and B. Stewart,
               "Introduction to Version 3 of the Internet-standard
               Network Management Framework", RFC 2570, April 1999.

   [RFC2571]   Harrington, D., Presuhn, R. and B. Wijnen, "An
               Architecture for Describing SNMP Management Frameworks",
               RFC 2571, April 1999.

   [RFC2572]   Case, J., Harrington D., Presuhn R. and B. Wijnen,
               "Message Processing and Dispatching for the Simple
               Network Management Protocol (SNMP)", RFC 2572, April
               1999.

   [RFC2573]   Levi, D., Meyer, P. and B. Stewart, "SNMPv3
               Applications", RFC 2573, April 1999.

   [RFC2574]   Blumenthal, U. and B. Wijnen, "User-based Security Model
               (USM) for version 3 of the Simple Network Management
               Protocol (SNMPv3)", RFC 2574, April 1999.





Bierman & Jones              Informational                     [Page 29]

RFC 2922                 Physical Topology MIB            September 2000


   [RFC2575]   Wijnen, B., Presuhn, R. and K. McCloghrie, "View-based
               Access Control Model (VACM) for the Simple Network
               Management Protocol (SNMP)", RFC 2575, April 1999.

   [RFC2578]   McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J.,
               Rose, M. and S. Waldbusser, "Structure of Management
               Information Version 2 (SMIv2)", STD 58, RFC 2578, April
               1999.

   [RFC2579]   McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J.,
               Rose, M. and S. Waldbusser, "Textual Conventions for
               SMIv2", STD 58, RFC 2579, April 1999.

   [RFC2580]   McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J.,
               Rose, M. and S. Waldbusser, "Conformance Statements for
               SMIv2", STD 58, RFC 2580, April 1999.

   [RFC2737]   McCloghrie, K. and A. Bierman, "Entity MIB (Version 2)",
               RFC 2737, Cisco Systems, December 1999.

8.  Security Considerations

   There are a number of management objects defined in this MIB that
   have a MAX-ACCESS clause of read-write and/or 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 can have a negative effect on
   network operations.

   There are a number of managed objects in this MIB that may contain
   sensitive information. These are:

       read-create objects:  ptopoConnRemoteChassisType
          ptopoConnRemoteChassis ptopoConnRemotePortType
          ptopoConnRemotePort ptopoConnAgentNetAddrType
          ptopoConnAgentNetAddr ptopoConnIsStatic
          ptopoConfigTrapInterval ptopoConfigMaxHoldTime

       read-only objects:  ptopoConnDiscAlgorithm
          ptopoConnMultiMacSASeen ptopoConnMultiNetSASeen
          ptopoConnLastVerifyTime ptopoLastChangeTime

       notifications:  ptopoConfigChange

   These MIB objects expose information about the physical connectivity
   for a particular portion of a network.





Bierman & Jones              Informational                     [Page 30]

RFC 2922                 Physical Topology MIB            September 2000


   A network administrator may also wish to inhibit transmission of any
   ptopoConfigChange notification by setting the ptopoConfigTrapInterval
   object to zero.

   It is thus important to control even GET access to these objects and
   possibly to even encrypt the values of these object when sending them
   over the network via SNMP.  Not all versions of SNMP provide features
   for such a secure environment.

   SNMPv1 by itself is not a secure environment.  Even if the network
   itself is secure (for example by using IPSec), even then, 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.

   It is recommended that the implementers consider the security
   features as provided by the SNMPv3 framework.  Specifically, the use
   of the User-based Security Model RFC 2574 [RFC2574] and the View-
   based Access Control Model RFC 2575 [RFC2575] is recommended.

   It is then a customer/user responsibility to ensure that the SNMP
   entity giving access to an instance of this MIB, is properly
   configured to give access to the objects only to those principals
   (users) that have legitimate rights to indeed GET or SET
   (change/create/delete) them.

9.  Authors' Addresses

   Andy Bierman
   Cisco Systems
   170 West Tasman Drive
   San Jose, CA USA 95134

   Phone: [phone]
   EMail: [e-mail]


   Kendall S. Jones
   Nortel Networks
   4401 Great America Parkway
   Santa Clara, CA USA 95054

   Phone: [phone]
   EMail: [e-mail]








Bierman & Jones              Informational                     [Page 31]

RFC 2922                 Physical Topology MIB            September 2000


10.  Full Copyright Statement

   Copyright (C) The Internet Society (2000).  All Rights Reserved.

   This document and translations of it may be copied and furnished to
   others, and derivative works that comment on or otherwise explain it
   or assist in its implementation may be prepared, copied, published
   and distributed, in whole or in part, without restriction of any
   kin