Dahua NVR6032K User Manual page 145

Please refer to the following sheet for detailed information.
Parameter
Network mode
NIC member
Figure 4-27
Function
It includes: single NIC, fault tolerance, load balance.

Single NIC: eth1/eth2/ eth3/eth4 operate separately. You
can use the services such as HTTP, RTP service via
eth1/eth2/ eth3/eth4. Usually you need to set one default
card (default setup is eth1) to request the auto network
service from the device-end such as DHCP, email, FTP
and etc. In multiple-address mode, system network status
is shown as offline once one card is offline.

Fault-tolerance: In this mode, device uses bond0 to
communicate with the external devices. You can focus on
one host IP address. At the same time, you need to set one
master card. Usually there is only one running card (master
card).System can enable alternate card when the master
card is malfunction. The system is shown as offline once all
cards are offline. Please note all cards shall be in the same
LAN.

Load balance: In this mode, device uses bond0 to
communicate with the external device. The all cards are
working now and bearing the network load. Their network
load are general the same. The system is shown as offline
once all cards are offline. Please note all cards shall be in
the same LAN.
You can check the box here to select the bind cards.

This mode is for fault-tolerance or load balance mode only.

The network cards number shall be equal to or more than
2.

The different types of cards such as fiber card or the
Ethernet card can not binding together.
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