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Intelligent Service Verificator

The Intelligent Service Verificator (ISV) service is the perfect complement to the Intelligent DNS (IDNS) module. In a context where multiple servers are performing the same task such as web servers, the ISV will monitor each of these servers to ensure that the traffic passed by the iDNS module is sent to a functioning server.Intelligent Service Verificator

ISV can perform two types of tests to verify a server or service’s availability, a Layer-7 (L7) exchange or a Layer-4 (L4) connection.   The L4 tests will attempt to connect to the defined service on the specified TCP port and if the connection is successful the service is considered to be available. The L7 test will replicate a real user request for a web page (for example), get the result from a web server and locate a keyword in the returned page to confirm that everything is in order.

Intelligent Service Verificator service is available on LB-1100E and higher models. It is also supported with the Geolink option for geographic link load balancing.  Click here for more information on the ISV feature.