298CHAPTER 7: MONITORING THE NETWORK
The use of monitoring mode in distributed networks is discussed in section on monitoring mode in “Using 3Com Network Director On A
Poll Rate
Active monitors poll the devices in your network to obtain the data they require to calculate the monitor state.The higher the poll rate used, the more traffic this will generate on your network.This may be of particular concern if you are monitoring remote devices and have limited bandwidth to monitor them over.
By reducing the poll rate you can reduce the amount of traffic collected without changing the monitoring mode.However, by polling less frequently any peaks in the monitor value will be averaged out more, and so it reduces the level of information that a monitor may provide.
At the whole map and subnet level it is possible to specify two different poll rates, one for core devices, such as routers, switches and hubs, and one for
It is not possible to change the poll rates when automatic monitoring mode is used. 3Com Network Director will automatically configure the poll rates based upon the number of devices in the map.
The use of poll rate in distributed networks is discussed in “Using 3Com
Network Director On A
Specifying Monitoring Mode and Poll Rates at the Whole Map
Level
To change the monitoring type and poll rate settings for the whole map, open the Monitoring tab of the Tools > Options dialog box: