UTT Technologies
Chapter 5 Network
http://www.uttglobal.com
Page
4141
5.2 Load Balancing
This section describes the
Network > Load Balancing
page.
In this page, you can configure load balancing global parameters, the connection
detection parameters (including detection target IP, detection interval, retry times, etc.) for
each Internet connection, and view the status and configuration of them.
5.2.1 Introduction to Load Balancing and Failover
5.2.1.1 Internet Connection Detection Mechanism
When using multiple Internet connections, to ensure that the network will not be
interrupted when a connection is faulty, the Gigabit Router should have the ability of
real-time monitoring each Internet connection. To this end, we design flexible automatic
detection mechanism on the Gigabit Router, and provide multiple detection methods to
meet the actual requirements.
For the sake of convenience, we firstly introduce several related parameters including
Detection Target IP
,
Detection Interval
,
Retry Times
, and
Detection Period
.
●
Detection Target IP:
It indicates the IP address of a target device. The Gigabit
Router will monitor an Internet connection by sending detection packets to the
specified target IP address.
●
Detection Interval:
It indicates the time interval at which the Gigabit Router
periodically sends detection packets, one packet at a time. The default value is 0,
which means that connection detection is disabled.
●
Retry Times:
It indicates the number of retries per detection period.
●
Detection Period:
It indicates a period of time during which the Gigabit Router
detects whether the Internet connection is available or not. Its value is the product of
Detection Interval
and
Retry Times
. For example, if the
Detection Interval
is set to
10 seconds and the
Retry Times
is set to 3, then the
Detection Period
is 30 (10 × 3
= 30) seconds.
For a normal Internet connection and a faulty Internet connection, the detection
mechanisms are different, the following describes them respectively.
For a normal Internet connection, the detection mechanism is as follows: The Gigabit
Router 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 Gigabit Router
will consider that the connection is faulty and shield it immediately. For example, when the
Retry Times
is set to 5, if the Gigabit Router has sent five consecutive detection packets
