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ANSI INCITS 531

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ANSI INCITS 531 2013 Edition, December 30, 2013 Information Technology – Systems Management Discovery for Managed Computer Systems

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Description / Abstract: WBEM Discovery using the Service Location Protocol (SLP)

This specification describes an efficient method for WBEM Clients to discover WBEM Servers and WBEM Server capabilities.

The objectives of this specification are to:

• provide a mechanism that allows WBEM Clients to discover WBEM Servers

• use existing standards and protocols for rapid development and deployment

• provide a mechanism that scales from small environments to enterprise environments

• provide WBEM Clients sufficient information in the advertisement to determine the WBEM Servers to communicate with

• scope the level of advertisement to avoid security holes

The Service Location Protocol provides a flexible and scalable framework for providing clients, represented by User Agents, with access to information about the existence, location, and configuration of services, represented by Service Agents.

Traditionally, clients have had to know the name and access method of services. The SLP eliminates the need for a client to know the name and access point of services. With SLP the client supplies a request for the desired type of service. The client receives information regarding the requested services.

The SLP uses Directory Agents that offer a centralized repository for advertised services. This allows the SLP to scale from very small to very large environments.

WBEM Servers acting as Service Agents advertise their services. WBEM Clients acting as User Agents query for the WBEM Server(s). A Directory Agent may be deployed in environments where there are many User and Service Agents.