In Telecommunication Management Network (TMN), the interworking of manager and agent requires the sharing of management information defined as Shared Management Knowledge (SMK) in ITU-T Recommendation M.3010. SMK includes information on the protocol knowledge, management functions, managed object classes and their instances, and authorization capabilities. We have developed a CORBA-based TMN SMK system in order to provide a dynamic and efficient distributed processing environment for the exchange of management information between managers and agents. In this paper, we discuss the design issues and present the design of a CORBA-based SMK system including the access protocol for obtaining the SMK information from MIB and for SMK context negotiations. Also, our effort on the prototype implementation of an SMK system using ORBeline and OSIMIS is presented. The preliminary performance results of our prototype implementation show that ORB-based SMK information access outperforms CMIS-based ...