User's Manual

12
SONAR
The role of the Sonar test server in 7signal Sapphire is to emulate one of the customer’s
production servers. Sapphire Eye contacts Sonar over the radio network to use some of the
services available or to request Sonar to contact Eye, if so specified in the service model.
Sonar and Eye thus implement the client–server model during active testing. The roles vary,
depending on the test. This symmetry of roles ensures that both directions (uplink and
downlink, or A subscriber in phone calls) can be measured. The Eye system’s test results are
always sent to the management tool Carat, either by Eye itself or by Sonar.
A single Sonar can serve several monitoring stations without being affected by the
monitoring station‘s home network. One Sonar can therefore be used as the test point for
several networks.
The 7signal Sapphire WQA solution supports the concurrent use of several Sonar test
servers, which means that Sonar can be installed on several servers within a company. Using
several Sonars enables the company to detect and locate problems in its network. Sonar can
be located in the same network as the access points, in a server room in the same building,
or anywhere on the Internet – such as in the centralized identification and authorization
center of an international organization.