Technical data

ServerIron ADX Graphical User Interface Guide 77
53-1002412-01
Health checks
7
The Element Heath Check - new page is displayed, as shown in Figure 60.
FIGURE 60 Configuring element health check.
4. Provide the following information:
• Health Check Name: Enter the name for the health check.
• Health Check Type: Select one of the following health check types:
 TCP: The ADX device attempts to engage in a normal three-way TCP handshake with
the port on the real server.
 UDP: The ADX device sends a UDP packet with garbage (meaningless) data to the UDP
port.
 ICMP: The ADX sends an ARP request and an IP ping to the port on the real server to
verify that the ADX device can reach the server through the network.
• Destination IP: Specifies the IP address of the real server. Enter the destination IP
address. You can configure both IPv4 and IPv6 addresses.
• Next Hop IP: Specifies the IP address of the next hop.
NOTE
The Next Hop IP field is displayed only when the health check type is ICMP.
• Health Check State: Select the Enable check box to enable health check. By default, the
health check is enabled.
• Health Check Interval: Specifies the interval at with the ADX device should perform the
health check. Enter the health check interval in seconds. The range is from 1 through 120
seconds. The default is 5 seconds. For SSL, the range is from 5 through 120 seconds.
• Retries: Specifies the number of retries that the ADX device should perform the health
check before concluding that the application has failed the health check. Enter the
number of retries. The range is from 1 through 5. The default is 3.
• L7 Health Check: Select the check box to allow the ADX device to perform the L7 health
check.