Technical data

68 ServerIron ADX Graphical User Interface Guide
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Health checks
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FIGURE 52 Binding real server groups
4. Provide the following information:
• Server Group Port: Select the port of the server group to bind with the virtual server port.
• Virtual Server: Select the virtual server that you want to bind to the server group.
• Virtual Port: Select the virtual server port to which you want to bind the server group port.
5. Click OK to bind the virtual server to the real server groups.
For more information on binding virtual servers to the server group, refer to the ServerIron ADX
Server Load Balancing Guide.
Health checks
The ADX device uses Layer 3, and Layer 4 or Layer 7 health checks to verify the availability of real
servers and the applications on the real servers.
Enabling Layer 2 to Layer 4 health checks
The device uses Layer 2 health check to verify whether the real server is reachable through the
network using the Address Resolution Protocol (ARP) request. The device uses the Layer 3 health
check to verify whether the real server is reachable through the network using IP pings. The device
performs Layer 4 health check to bring up the application port that binds the real and virtual
servers using TCP and UDP health check.
To globally enable Layer 2, Layer 3, and Layer 4 health checks on the device, perform the following
steps within the Configure tab.
1. Click Traffic on the menu bar.
2. From the sidebar, select Health Checks.