User's Manual

UTT Technologies Chapter 6 Basic Setup
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mechanisms are different, the following describes them respectively.
For a normal Internet connection, the detection mechanism is as follows: The Device
periodically sends a detection packet at the specified time interval to the target IP address.
Once no response packet received during a detection period, the Device will consider that
the connection is faulty and shield it immediately. For example, by default, if the Device
has sent three detection packets but not received any response packet during a detection
period, it will consider that the connection is faulty.
For a faulty Internet connection, the detection mechanism is as follows: Similarly, the
Device also periodically sends a detection packet at the specified time interval to the
target IP address. Once more than half of the response packets received during a
detection period, the Device will consider that the connection is back to normal and enable
it immediately. For example, by default, if the Device has sent three detection packets and
received two packets during a detection period, it will consider that the connection is back
to normal.
Note
If you don¶t want to monitor an Internet connection, please set its Detection Interval
to 0.
6.3.1.2 Load Balancing Mode
The Device provides two connection groups: primary connection group and backup
connection group. An Internet connection belonging to the primary connection group is a
primary connection, while an Internet connections belonging to the backup connection
group is a backup connection. By default, all the Internet connections are primary
connections. It allows you to divide one or more connections into the backup connection
group, but the WAN1 Internet connection can only be used as a primary connection.
The Device provides two load balancing modes: Full Load Balancing and Partial Load
Balancing.
If you choose to use Full Load Balancing, all the Internet connections are used as
primary connections. The operation principle is as follows:
1. If all the Internet connections are normal, the LAN users will use these connections to
access the Internet.
2. If an Internet connection is faulty, the Device will shield it immediately, and the traffic