| Configuring the WSM
using Device Manager |
  
|
Modifying the health check interval and retries
For TCP services, the WSM verifies that real servers and their services are operational by opening a TCP connection to each service, using the defined service ports. For UDP services, the WSM pings servers to determine their status.
You can modify the following settings for real server health checks:
- the interval between health checks (default = 2)
- the threshold for the number of failed attempts before declaring a server down (default = 4)
- the number of successful attempts required before declaring a server up (default = 8)
The type of health check is configured in the real server group settings (see Configuring a health check for a real server group).
To modify the health check interval and retries for a real server:
- From the device view, select the Web Switching Module.
| The Web Switching Module is highlighted. |
- From the Edit menu, choose WSM Card > L4 Switching > SLB.
| The Server Load Balance dialog box opens to the General tab. |
- Click the Real Servers tab.
| The Real Servers tab opens. |
- Double-click the Health Check Interval field for the real server, and enter a value (0 - 60 seconds) representing the interval between health checks for this real server.
- Double-click the Failure Retries field for the real server and enter a value
(1 - 63) to represent the number of failed attempts required to declare this server down.
- Double-click the Success Retries field for the real server and enter a value
(1 - 63) representing the number of successful attempts required to declare this server up.
- Click Set > Apply.
| An Information dialog box opens reminding you to save the configuration. |
- Click OK.
| The Information dialog box closes. |
- From the Real Servers tab, click Close.
| The health check interval and retries are configured for the real server and the SLB dialog box closes. |
- To save the change, right-click the WSM card and choose one of the following from the shortcut menu:
- Save configuration (backup)--Saves changes to the active and backup WSM configuration blocks.
- Save configuration (no backup)--Saves changes to the active WSM configuration block.
See also: