公开(公告)号：BR8800330A

公开(公告)日：1988-09-13

申请号：BR8800330

申请日：1988-01-28

Applicant: IBM

Inventor： JOHNSON DONAVON W ,  SHAHEEN-GOUDA AMAL AHMED ,  SMITH TODD ALLEND

IPC: G06F12/00 ,  G06F12/08 ,  G06F13/00 ,  G06F15/16 ,  G06F17/30 ,  H04L29/00

Abstract: A directory management technique is provided for a plurality of data processing systems which are connected together in a network. In the system, when a local, or client, data processing system interrogates a remote, or server, data processing system for a unit of directory information, the server system is enabled to automatically send additional units of pertinent directory information back to the client system in response to a subsequent change in the directory structure of the server system. If the server system is unable to continue updating the client system, for any of a plurality of possible reasons, the server system informs the client system of this fact, which enables the client system to purge itself of the formerly stored directory cache entry relative to this path, since the client system can no longer consider this cached path information to be currently correct.