DVR systems NVR60xx Series User Manual
Page 132
Multi-address Mode: The parameters of the two NIC cards can be configured independently. You can select
LAN1 or LAN2 in the NIC type field for parameter settings.
You can select one NIC card as default route. And then the system is connecting with the extranet the data will be
forwarded through the default route.
Net-fault Tolerance Mode: The two NIC cards use the same IP address, and you can select the Main NIC to
LAN1 or LAN2. By this way, in case of one NIC card failure, the device will automatically enable the other
standby NIC card so as to ensure the normal running of the whole system.
Load Balance Mode: By using the same IP address and two NIC cards share the load of the total bandwidth,
which enables the system to provide two Gigabit network capacity.
Figure 9. 2 Net Fault-tolerance Working Mode