The OSIMIS Platform: Making OSI Management Simple

Abstract

The OSIMIS (OSI Management Information Service) platform provides the foundation for the quick, efficient and easy construction of complex management systems. It is an object-oriented development environment in C++ [Strou] based on the OSI Management Model [X701] that hides the underlying protocol complexity (CMIS/P) and harnesses the power and expressiveness of the associated information model [X722] through simple to use Application Program Interfaces (APIs). OSIMIS combines the thoroughness of the OSI models and protocols with advanced distributed systems concepts pioneered by ODP to provide a highly dynamic distributed information store. It also combines seamlessly the OSI management power with the large installed base of Internet SNMP [SNMP] capable network elements. OSIMIS supports particularly well a hierarchical management organisation through hybrid manager-agent applications and may embrace a number of diverse technologies through proxy systems. This paper explains the OSIMIS components, architecture, philosophy and direction.

Design and implementation of a multi-threaded TMN agent system

“…In general, the management process for an agent system consists of three modules: coordinator, agent, and managed objects [8,10,12]. The coordinator passes control to a proper module whenever events (a CMIS operation request from the manager system, an event report from network resource, and a timer interrupt within the agent system) occur.…”

“…OSIMIS is a platform for the development of management applications based on OSI [8,10]. OSIMIS provides an OSI agent engine called GMS(Generic Agent System), which is a single-threaded UNIX process and uses an asynchronous IO technique to avoid blocking [13,14].…”

“…We measured a response time as a difference between the time the agent system receives a CMIS operation and the time the agent system sends a final reply to the manager system. The proposed system is named for "Proposed", and that of OSIMIS is named for "SMA(Systems Management Agent" [10]. Figure 9 shows an average response time to an M-GET operation both for Proposed and for SMA.…”

“…Many researches have been done on the development of an agent system [5,8,9,10,12]. The agent system of OS-IMIS [8,10] is a single-threaded UNIX process which uses an asynchronous IO technique to avoid blocking but not so effective.…”

“…The agent system of OS-IMIS [8,10] is a single-threaded UNIX process which uses an asynchronous IO technique to avoid blocking but not so effective. When it performs a CMIS operation it sequentially performs the operation on the selected managed objects, and this poses a serious problem of having very long response time to a CMIS request.…”