MDM Software

The MDM software comprises the perfSONAR web services and visualisation tools.

Web Services

A modular set of open-source perfSONAR web services that enable access to measurement data and network information across administrative domains. Each individual web service is in charge of a specific functionality (for example, authentication and authorisation). Within each domain the set of deployed web services is responsible for the domain control.

The following types of perfSONAR web services are available:

• Measurement Point web services
  A family of web services which collect and publish the data that the network domains’ measurement tools have collected. The measurement data can be collected on demand or in regular intervals according to a defined schedule. The data can be published to a client, transferred to other web services or stored in an archive (a database or a file system).



• Measurement Archive web services
  A family of web services that read measurement data held in databases or file systems and publish it to clients. The Measurement Archive web services can also be used to write measurement data that other web services provide to data stores.



• Lookup web services
  Each network domain that joins the perfSONAR infrastructure needs a Lookup web service with which all other web services in this domain register. The Lookup services of multiple network domains communicate with each other and inform clients which web services are available. Clients just need the URL of the Lookup web service.



• Authentication web services
  Network domains that join the perfSONAR infrastructure can use an Authentication web service to protect resources within their domain. Users are authenticated before they can access the resources required to access measurement data or to carry out measurements).

The modular design and open-source nature of the web services allows domains to implement and combine them according to their individual requirements. Domains can thus create customised domain controls with maximum flexibility.

Visualisation Tools

The perfSONAR MDM visualisation tools are open-source user interfaces for querying perfSONAR web services and presenting the collected data to the user in an intuitive, easy-to-use interface that allow users to query and view network information and performance data. The open-source nature of the visualisation tools means that the presentation of performance data can be adapted to the needs of specific user groups.