RFC 1276 (rfc1276) - Page 1 of 17

Replication and Distributed Operations extensions to provide an Internet Directory using X

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Network Working Group                            S.E. Hardcastle-Kille
Requests for Comments 1276                   University College London
                                                         November 1991






          Replication and Distributed Operations extensions
             to provide an Internet Directory using X.500







Status of this Memo
    This RFC specifies an IAB standards track protocol for the
    Internet community, and requests discussion and suggestions for
    improvements.  Please refer to the current edition of the ``IAB
    Official Protocol Standards'' for the standardization state and
    status of this protocol.  Distribution of this memo is unlimited.

Abstract
    Some requirements on extensions to X.500 are described in the
    RFC[HK91b], in order to build an Internet Directory using
    X.500(1988).  This document specifies a set of solutions to the
    problems raised.  These solutions are based on some work done for
    the QUIPU implementation, and demonstrated to be effective in a
    number of directory pilots.  By documenting a de facto standard,
    rapid progress can be made towards a full-scale pilot.  These
    procedures are an INTERIM approach.  There are known
    deficiencies, both in terms of manageability and scalability.
    Transition to standard approaches are planned when appropriate
    standards are available.  This RFCwill be obsoleted at this
    point.




RFC 1276         Internet Directory Replication          November 1991


Contents

1   Approach                                                         2

2   Extensions to Distributed Operations                             3


3   Alternative DSAs                                                 4

4   Data Model                                                       5


5   DSA Naming                                                       6

6   Knowledge Representation                                         6

7   Replication Protocol                                             9


8   New Application Context                                         12

9   Policy on Replication Procedures                                12


10  Use of the Directory by Applications                            12

11  Migration and Scaling                                           12

12  Security Considerations                                         13


13  Author's Address                                                13

A   ASN.1 Summary and Object Identifier Allocation                  14


List of Figures

    1      Knowledge Attributes  .   .   .   .   .   .   .   .       8

    2      Replication Protocol  .   .   .   .   .   .   .   .      10
    3      Summary of the ASN.1  .   .   .   .   .   .   .   .      17



Hardcastle-Kille
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