Bringing AgentX Subagents to the Operating System Kernel Space

  • Oliver Wellnitz
  • Frank Strauß
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2867)


SNMP agents on conventional operating system platforms are mostly monolithic and implement Managed Objects in a single program. The concept of subagents makes it possible to delegate the implementation of Managed Objects to several subagents located close to the managed subsystems. All subagents are managed by a master agent. While this concept is well accepted for hardware subsystems of modular devices and for host services running in the user space, it is not yet applied for components of conventional operating systems.

This paper examines to what extent the IETF standard subagent protocol AgentX is suitable for the management of kernel components. For this purpose, on the Linux platform two subagents have been implemented within the kernel subsystems they manage. They communicate with a master agent in user space. The implemented software contains a generic intermediate layer which carries out AgentX protocol operations and access to Managed Objects. Based on this layer, the network interface subsystem and the Netfilter subsystem have been enhanced with management extensions.


Protocol Layer User Space Kernel Space Network Address Translation Simple Network Management Protocol 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2003

Authors and Affiliations

  • Oliver Wellnitz
    • 1
  • Frank Strauß
    • 1
  1. 1.Institute of Operating Systems and Computer NetworksTechnical University of BraunschweigBraunschweigGermany

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