Server load balancing and TWCB support the configuration of any combination of up to two ICMP ping, TCP, or UDP probes. When configuring multiple probes on a server-based application, the probe is configured as probe one or probe two. Whenever probe one is not administratively configured, probe one is auto-configured to the default ICMP probe for that server context. The $slb_default probe is auto-configured for probe one in a real server context. The $twcb_default probe is auto-configured for probe one in a cache server context.
The probe type setting allows you to set whether configured probes are active or inactive for a server context. The probe type setting does not change the probe configuration. When probe type is set to probe, the probe configuration for the server context is active; probes are sent to the server in accordance with the configured settings. When probe type is set to none, the probe configuration is inactive; no probes are sent for the server context. The default probe type is probe.
Auto applied probes can be overwritten when configuring an administratively created probe, by specifying probe one in the appropriate server context.
In a server configuration context, probe configuration can be reset to factory default values by resetting fail detection for that server context. Resetting fail detection in a server configuration context:
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