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Interfaces
Ping test: Tests connectivity by sending an ICMP echo request to the hostname or IP
n
address specified in Ping host. You can also optionally change the number of bytes in
the Ping payload size.
DNS test: Tests connectivity by sending a DNS query to the specified DNS server.
n
HTTP test: Tests connectivity by sending an HTTP or HTTPS GET request to the URL
n
specified in Web servers. The URL should take the format of http[s]://hostname/
[path].
Test DNS servers configured for this interface: Tests connectivity by sending a DNS
n
query to the DNS servers configured for this interface.
Test the interface status: The interface is considered to be down based on:
n
l
l
12. Optional active recovery configuration parameters:
a. If Reboot device is enabled, for Reboot fail count, type or select the number of times that
the Surelink test must fail before the device is rebooted. The default is 1.
b. Change the Interval between connectivity tests.
Allowed values are any number of weeks, days, hours, minutes, or seconds, and take the
format number{w|d|h|m|s}.
For example, to set Interval to ten minutes, enter 10m or 600s.
The default is 15 minutes.
c. If more than one test target is configured, for Success condition, determine whether the
interface should fail over based on the failure of one of the test targets, or all of the test
targets.
d. For Pass threshold, type or select the number of times that the test must pass after
failure, before the interface is determined to be working and is reinstated.
e. For Failed attempts, type the number of probe attempts before the WAN is considered to
have failed.
f. For Response timeout, type the amount of time that the device should wait for a response
to a probe attempt before considering it to have failed.
Allowed values are any number of weeks, days, hours, minutes, or seconds, and take the
format number{w|d|h|m|s}.
For example, to set Response timeout to ten minutes, enter 10m or 600s.
The default is 15 seconds.
IX20 User Guide
Down time: The amount of time that the interface can be down before this test is
considered to have failed.
Allowed values are any number of weeks, days, hours, minutes, or seconds, and
take the format number{w|d|h|m|s}.
For example, to set Down time to ten minutes, enter 10m or 600s.
The default is 60 seconds.
Initial connection time: The amount of time to wait for an initial connection to the
interface before this test is considered to have failed.
Allowed values are any number of weeks, days, hours, minutes, or seconds, and
take the format number{w|d|h|m|s}.
For example, to set Initial connection time to ten minutes, enter 10m or 600s.
The default is 60 seconds.
Wide Area Networks (WANs)
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