RuggedCom RuggedRouter RX1000 User Manual page 177

Chapter 17 - Link Backup
The Test Duration field controls the amount of time to run before restoring service to
the main trunk. Please note that this duration must take into account the timing
parameters of the backup configuration: The duration should comfortably exceed the
Ping Interval plus the Ping Timeout multiplied by the Ping retry count plus the
Main path down timeout. In the case of a dial backup configuration, also be sure to
take into account the call setup and modem connection times. Add to this a time that
will allow time to navigate the Webmin menus to observe that Link Backup status,
link states, and routing are all as expected before, during, and after the Link Backup
test.
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