rfc2934.txt

<VC++网络游戏建摸与实现>源代码

              pimInterfaceDR, pimInterfaceHelloInterval,
              pimInterfaceStatus, pimInterfaceMode
            }
    STATUS  current
    DESCRIPTION
            "A collection of objects to support management of PIM Dense
            Mode (version 2) routers."
    ::= { pimMIBGroups 5 }

pimV2CandidateRPMIBGroup OBJECT-GROUP
    OBJECTS { pimCandidateRPAddress,
              pimCandidateRPRowStatus
            }
    STATUS  current
    DESCRIPTION
            "A collection of objects to support configuration of which
            groups a router is to advertise itself as a Candidate-RP."
    ::= { pimMIBGroups 3 }

pimV1MIBGroup OBJECT-GROUP
    OBJECTS { pimJoinPruneInterval, pimNeighborIfIndex,
              pimNeighborUpTime, pimNeighborExpiryTime,
              pimNeighborMode,
              pimInterfaceAddress, pimInterfaceNetMask,
              pimInterfaceJoinPruneInterval, pimInterfaceStatus,
              pimInterfaceMode, pimInterfaceDR,
              pimInterfaceHelloInterval,
              pimRPState, pimRPStateTimer,
              pimRPLastChange, pimRPRowStatus
            }
    STATUS  deprecated
    DESCRIPTION
            "A collection of objects to support management of PIM
            (version 1) routers."
    ::= { pimMIBGroups 4 }

pimNextHopGroup OBJECT-GROUP



McCloghrie, et al.            Experimental                     [Page 21]

RFC 2934      Protocol Independent Multicast MIB for IPv4   October 2000


    OBJECTS { pimIpMRouteNextHopPruneReason }
    STATUS  current
    DESCRIPTION
            "A collection of optional objects to provide per-next hop
            information for diagnostic purposes.  Supporting this group
            may add a large number of instances to a tree walk, but the
            information in this group can be extremely useful in
            tracking down multicast connectivity problems."
    ::= { pimMIBGroups 6 }

pimAssertGroup OBJECT-GROUP
    OBJECTS { pimIpMRouteAssertMetric, pimIpMRouteAssertMetricPref,
              pimIpMRouteAssertRPTBit }
    STATUS  current
    DESCRIPTION
            "A collection of optional objects to provide extra
            information about the assert election process.  There is no
            protocol reason to keep such information, but some
            implementations may already keep this information and make
            it available.  These objects can also be very useful in
            debugging connectivity or duplicate packet problems,
            especially if the assert winner does not support the PIM and
            IP Multicast MIBs."
    ::= { pimMIBGroups 7 }

END

5.  Security Considerations

   This MIB contains readable objects whose values provide information
   related to multicast routing, including information on the network
   topology.  There are also a number of objects that have a MAX-ACCESS
   clause of read-write and/or read-create, which allow an administrator
   to configure PIM in the router.

   While unauthorized access to the readable objects is relatively
   innocuous, unauthorized access to the write-able objects could cause
   a denial of service.  Hence, the support for SET operations in a
   non-secure environment without proper protection can have a negative
   effect on network operations.

   SNMPv1 by itself is such an insecure 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 SET (change/create/delete) the objects in this MIB.






McCloghrie, et al.            Experimental                     [Page 22]

RFC 2934      Protocol Independent Multicast MIB for IPv4   October 2000


   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 2274 [12] and the View-based
   Access Control Model RFC 2275 [15] is recommended.

   It is then a customer/user responsibility to ensure that the SNMP
   entity giving access to this MIB, is properly configured to give
   access to those objects only to those principals (users) that have
   legitimate rights to access them.

6.  Intellectual Property Notice

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

7.  Acknowledgements

   This MIB module has been updated based on feedback from the IETF's
   Inter-Domain Multicast Routing (IDMR) Working Group.















McCloghrie, et al.            Experimental                     [Page 23]

RFC 2934      Protocol Independent Multicast MIB for IPv4   October 2000


8.  Authors' Addresses

   Keith McCloghrie
   cisco Systems, Inc.
   170 West Tasman Drive
   San Jose, CA  95134-1706

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


   Dino Farinacci
   Procket Networks
   3850 North First Street
   San Jose, CA 95134

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


   Dave Thaler
   Microsoft Corporation
   One Microsoft Way
   Redmond, WA  98052-6399

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


   Bill Fenner
   AT&T Labs - Research
   75 Willow Rd.
   Menlo Park, CA 94025

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

9.  References

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

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

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



McCloghrie, et al.            Experimental                     [Page 24]

RFC 2934      Protocol Independent Multicast MIB for IPv4   October 2000


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

   [5]  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.

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

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

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

   [9]  Case, J., McCloghrie, K., Rose, M. and S. Waldbusser,
        "Introduction to Community-based SNMPv2", RFC 1901, January
        1996.

   [10] 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.

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

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

   [13] 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.

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

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

   [16] Deering, S., Estrin, D., Farinacci, D., Jacobson, V., Liu, G.
        and L. Wei, "Protocol Independent Multicast (PIM): Motivation
        and Architecture", Work in Progress.



McCloghrie, et al.            Experimental                     [Page 25]

RFC 2934      Protocol Independent Multicast MIB for IPv4   October 2000


   [17] Deering, S., Estrin, D., Farinacci, D., Jacobson, V., Liu, G.
        and L. Wei, "Protocol Independent Multicast (PIM): Protocol
        Specification", Work in Progress.

   [18] Estrin, D., Farinacci, D., Helmy, A., Thaler, D., Deering, S.,
        Handley, M., Jacobson, V., Liu, C., Sharma, P. and L. Wei,
        "Protocol Independent Multicast - Sparse Mode (PIM-SM): Protocol
        Specification", RFC 2362, June 1998.

   [19] Deering, S., Estrin, D., Farinacci, D., Jacobson, V., Helmy, A.
        and L. Wei, "Protocol Independent Multicast Version 2, Dense
        Mode Specification", Work in Progress.

   [20] McCloghrie, K., Farinacci, D. and D. Thaler, "IPv4 Multicast
        Routing MIB", RFC 2932, October 2000.




































McCloghrie, et al.            Experimental                     [Page 26]

RFC 2934      Protocol Independent Multicast MIB for IPv4   October 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
   kind, provided that the above copyright notice and this paragraph are
   included on all such copies and derivative works.  However, this
   document itself may not be modified in any way, such as by removing
   the copyright notice or references to the Internet Society or other
   Internet organizations, except as needed for the purpose of
   developing Internet standards in which case the procedures for
   copyrights defined in the Internet Standards process must be
   followed, or as required to translate it into languages other than
   English.

   The limited permissions granted above are perpetual and will not be
   revoked by the Internet Society or its successors or assigns.

   This document and the information contained herein is provided on an
   "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING
   TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
   BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION
   HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF
   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

Acknowledgement

   Funding for the RFC Editor function is currently provided by the
   Internet Society.



















McCloghrie, et al.            Experimental                     [Page 27]