RFC 1803 (rfc1803) - Page 3 of 8

Recommendations for an X

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RFC 1803           X.500 Production Directory Service          June 1995


   * Country DIT information, including naming infrastructure
   information such as localities and states, should be replicated
   across the oceans - not only to serve when the trans-oceanic links go
   down, but also to handle name resolution operations for clients in
   other countries.  There should be a complete copy of the US root in
   Europe and a copy of the Japanese root in Africa and North America,
   for instance.  Generally, data should be replicated where ever it is
   heavily used, and where it will be needed in the event of a network
   partition.

   *  The master and shadow DSAs must run software that conforms to all
   the recommendations listed in section 4.

2b. Operational recommendations for the service provider

   * Provide a generic e-mail address for the DSA manager (e.g., x500-
   manager@foo.com).  More than one manager should be available to
   handle problems as they come up (i.e., the manager should be able to
   go on vacation!).

   *  E-mail to the manager of the master DSA must be answered in a
   timely fashion:

      * All mail to the manager should be acknowledged as received
      within one working day.

      * Trouble reports concerning the master and shadow DSAs must be
      answered within 24 hours;  this response should include a
      resolution to the problem (when possible).  There are situations
      where problem resolution may take longer than 24 hours, but this
      should be unusual.

      * General informational requests (e.g., how to join the service,
      where to get the software, etc.) should be acknowledged within 2
      working days and should normally be resolved within 2 working
      days.

   *  Maintain a current e-mail distribution list of all DSA managers
   within the country.  Changes to this list must be made in a timely
   manner (within 2 working days).  It may be useful to include X.500
   software vendors and funders on this distribution list.

   *  Provide quick turn around (2 working days) for changes/additions
   to the national master DSA (i.e., requests to add a new organization,
   to change a DSA's information, or to remove a DSA).  Acknowledgments
   to these requests must be made within 1 working day.





Wright, et al                Informational

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