Health-Check Servers

Configure health-check servers for the FortiGate unit to verify that real servers are able respond to network connection attempts. If a real server responds to connection attempts, the load balancer continues to send sessions to it. If a real server stops responding to connection attempts, the load balancer assumes that the server is down and does not send sessions to it. The health-check servers configuration determines how the load balancer tests the real servers. You can use a single health-check servers for multiple load balancing configurations.

To add a health-check server:

1. Ensure that you are in the correct ADOM and that SD-WAN central management is enabled for the ADOM.
2. Go to Device Manager > SD-WAN > Health-Check Servers.
3. Click Create New in the content pane toolbar. The Create New WAN Detect Server page opens.

   

4. Enter the following information, then click OK to add the server:

   Name	Enter the name of the WAN detect server.
   Description	Enter a description of the server.
   Detect Server	Enter the IP address of the WAN interface that you want to monitor. Click the plus icon to add more interfaces.
   Per-Device Mapping	Enable per-device mapping. See Health-check servers per-device mapping.

To edit a health-check server:

1. If using ADOMs, ensure that you are in the correct ADOM.
2. Go to Device Manager > SD-WAN > Health-Check Servers.
3. Select the server from the list and click Edit in the toolbar, or right-click the server then select Edit. The Edit WAN Detect Server page opens.
4. Edit the server as required, then click OK to apply your changes.

To delete a health-check server or servers:

1. If using ADOMs, ensure that you are in the correct ADOM.
2. Go to Device Manager > SD-WAN > Health-Check Servers.
3. Select the server or server s from the list and click Delete in the toolbar, or right-click the server then select Delete.
4. Click OK in the confirmation dialog box to delete the server or servers.