Network Router User Manual
2.11. Twin Setup Page
is page congures the twin mode redundant router feature. Twin mode is an optional
enhancement and is not activated in a standard router. If your device does not support redundant
twin mode contact Adept to nd out how redundant twin mode might be activated. is page
does not appear if NAT support is enabled. Following is a brief description of each item listed on
the page
Fig.2.21: Twin Mode Setup Page
HeartBeat Time: is sets the time period in milliseconds between cycles of the twin mode
monitoring packets. e active member of the redundant pair or active twin, sends out two round
trip monitoring packets during each HeartBeat period that test both the 709.1 and IP interfaces of
both routers. e default is 1000 ms. Increasing the HeartBeat Time increases the fail over latency
time. Decreasing it increases network trac and load on the router. A practical lower limit is 100
ms.
Timeout Cushion: is sets the time period in milliseconds of latency cushion for the time out
for failure detection of the monitoring packets. In other words if aer a time equal to HeartBeat
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