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7.8
Load Balancing
Load balancing lets users divide traffic between different interfaces.
8
Remote monitoring and administration
RUT9XX supports multiple monitoring and administration possibilities. One can get routers information through
SMS or using RMS (Remote Management System). Furthermore, some system related parameters can be obtained using
MODBUSD or MQTT publisher services. How to use them are described in the 9.19 and 9.20 chapters respectively. The
main focus is on parameters, which change from time to time, like signal strength, operators name (it is quite common
to change of operator name in countries where inner roaming is used) or module temperature. Although it is also
possible to read more static values, like MAC address, router’s serial number and many others. The access to the
mentioned parameters is implemented in both MODBUSD and MQTT publisher applications. Apart from getting of
some parameters, MODBUSD also supports setting of some system related parameter, for example, change value of
digital output. Although it sounds frustrating, this functionality is sometimes useful and necessary.
Some applications, like MQTT publisher or RMS allows monitoring or administrating several routers from one
place. It is very useful functionality, when you have few routers and would like to change some parameter using single
application. RMS share some similarities with SSH (Secure Shell) and indeed, one of RMS feature is to allows SSH access
to remote router. There is no separate chapter about RMS in this manual, because the interface of RMS is very intuitive
and user friendly. You can access RMS by using your browser with supplied username and a password at
By sending SMS to the router the user can execute some command, like reboot, switch wifi on or off and many
others. With each SMS the user need to specify router’s administrator password. This is done for authentication
purposes. The list of commands that may be executed through the SMS is limited. Full list of commands can be found on
Services-SMS Utilities of routers WEB page. More about router’s management using SMS can found in chapter 9.8.
Another interesting router monitoring solution is SNMP (Simple Network Management Protocol). By not going
into deep details about this protocol, it is another manner to monitor router parameters. It allows the user to check
current operator, modem model and other router parameters. Compared to other applications and services, only SNMP
have ability to inform the user about the occurrence of specific event (called trap) in the system. The main drawback of
this protocol is, that it does not allow to change anything. You can read more about SNMP in chapter 8.9.
