Observer nTAPs : Observer nTAPs : FAQ : How do I connect my failover devices?
How do I connect my failover devices?
When the device connected to Link B fails, the TAP disables Link A so that the device on Link A can initiate its failover procedure.
The TAP then restarts its search phase. Until the Link B device is working again, the TAP repeats the following steps:
1. Search.
2. Determine if Link A is up. If not, keep searching.
3. If Link B is up, then re-establish the connection. If Link B is still down, then shut down Link A.
4. Go to first step.
 
Figure 8: Cabling Failover Devices
This figure is for illustrative purposes and may not match your product.
NI nTAPs 'Failover cabling' PNG [hdot24]NI nTAPs 'Failover cabling' PNG [hdot24]