Does the ipXpress monitor server health?
Yes. The ipXpress polls each physical server to determine its state. These polls follow user-configured preferences. If a physical server is determined to be “down”, the ipXpress does not direct traffic to it. How does the ipXpress ensure that services are available? The ipXpress uses several methods to make sure that physical servers are available: • The ipXpress “pings” physical servers. The time interval between pings is user-configurable as well as the number of retries before the physical server is considered unavailable. • The ipXpress monitors TCP connections. You can specify which ports and which physical servers to monitor. Application server status records are logged into the host system. • Active Content Verification: The ipXpress monitors all active connections, checking all return codes. Error codes are entered into the host system log. In the event a server is deemed inactive, busy, or not responding; the ipXpress takes the following actions: • server taken out of active
