D-Link DFL-M510, Часто задаваемые вопросы

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D-Link Nordic Technical Support 11
Real-Time Monitor
Q: Why does RTM show no data?
A:
The reasons may be:
1. Device is so busy that it couldn’t send RTM to UI
2. There are some exceptions in UI’s Java console
3. Device doesn’t hit any rules (If no data means no top-n events)
Scenario 1 - the RTM shows no data while the time axis keeps going as time elapses: It
may be because there is no network traffic passing through the device or the device is
too busy to send the real-time data.
Scenario 2 - the time axis of the RTM does no go as time elapses: The RTM crashes
because some unexpected error has happened. User may need to close the Ul and re-
login the system again.
Q: How many bytes are transferred from DFL-M510 to the PC for
RTM?
A:
The maximum is 120K bytes/5 sec. However, this only happens in extreme cases:
150 hosts fully learned, and 4096 rules hit in 5 seconds. The size of real-time
information in clean traffic (i.e., no hit at all) is 104 bytes/5 sec.
Q: How often is the data refreshed in Real Time Application?
A:
The data is refreshed every 5 seconds.