To establish a simple machine ping that verifies the machine is online, complete the following steps.
- Open the Cisco ACE configuration tool.
- Click the Config tab.
- In the Load Balancing menu, select Health Monitoring.
- Create a new health probe by clicking the + (plus) symbol.
- In the Probe name field, provide a name for the probe.
- In the Health probe type field, select ICMP for the type.
- In the Pass detect (failed probe) interval field, enter a pass detect count. This is the time interval between sending probes during a health check when the server is in a known bad state. The recommended value is 30 seconds.
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In the Fail detect count field, enter a fail-detect
count. This is the consecutive number of times a probe must fail before the
server is marked as failed. The recommended count is two times.
If you set the Pass detect (failed probe) interval count to 15 seconds, the load balancer stops sending new connections to the server within 30 seconds of it going down.
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In the Pass detect count field, enter a pass detect
count. This is the number of successful responses a probe must produce before
the server is marked healthy. The recommended count is two times.
If you set the Pass detect (failed probe) interval to 30 seconds, the load balancer starts to send new connections to the server within one minute of it coming back up.
- In the Receive timeout for a response count field, enter a receive timeout for a response count. This is the amount of time that a server has to return a response during a probe. If it does not return a response within the set time, the probe fails. The recommended value is five seconds.