Adept Technology 709.1 ユーザーズマニュアル
2.11. Twin Setup Page
This page configures 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 find out how redundant twin mode might be activated. This page
does not appear if NAT support is enabled. Following is a brief description of each item listed on
the page
enhancement and is not activated in a standard router. If your device does not support redundant
twin mode contact Adept to find out how redundant twin mode might be activated. This 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: This sets the time period in milliseconds between cycles of the twin mode
monitoring packets. The 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. The default is 1000 ms. Increasing the HeartBeat Time increases the fail over latency
time. Decreasing it increases network traffic and load on the router. A practical lower limit is 100
ms.
monitoring packets. The 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. The default is 1000 ms. Increasing the HeartBeat Time increases the fail over latency
time. Decreasing it increases network traffic and load on the router. A practical lower limit is 100
ms.
Timeout Cushion: This sets the time period in milliseconds of latency cushion for the time out
for failure detection of the monitoring packets. In other words if after a time equal to HeartBeat
for failure detection of the monitoring packets. In other words if after a time equal to HeartBeat
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