Settings | Guidelines |
Name | Unique name. No spaces or special characters. After you initially save the configuration, you cannot edit the name. |
Interval | The default is 5. The default is recommended in most cases. |
Retry | The default is 3. The default is recommended in most cases. |
Timeout | The default is 3. The default is recommended in most cases. |
Source IP Address | Source IP address specified in the health check packet header. You do not necessarily need to configure the source address of the health check or its individual probes unless you want it to differ from the network interface IP address, or differ from the source IP used by other probes in the health check. The probe’s source IP address is configurable at multiple levels. The system uses the most specific source address that you configure for each probe: • If a source IP address is configured for the health check member, the system uses that source address as the SRC field in the packet’s IP header. • If source IP address for the health check member remains at its default value (0.0.0.0) but you have configured an health check group source IP address, the system uses that address. • If both group and member settings are not configured (remaining at their default value of 0.0.0.0), the system uses the IP address of the network interface from which the packet is sent. The default is 0.0.0.0. |
Check Member | |
Name | Unique name. No spaces or special characters. After you initially save the configuration, you cannot edit the name. |
Address | You must specify a destination IP address. When the link health check option is enabled within an active link group, the system periodically sends an ICMP ECHO probe (ping) to a beacon—an IP address that must be reachable in order for the link to be deemed available. A beacon can be any IP address, such as a main office, core router, or virtual server at another data center. |
Source IP Address | Source IP address specified in the health check packet header. You do not necessarily need to configure the source address of the health check or its individual probes unless you want it to differ from the network interface IP address, or differ from the source IP used by other probes in the health check. The probe’s source IP address is configurable at multiple levels. The system uses the most specific source address that you configure for each probe: • If a source IP address is configured for the health check member, the system uses that source address as the SRC field in the packet’s IP header. • If source IP address for the health check member remains at its default value (0.0.0.0) but you have configured an health check group source IP address, the system uses that address. • If both group and member settings are not configured (remaining at their default value of 0.0.0.0), the system uses the IP address of the network interface from which the packet is sent. The default is 0.0.0.0. |