How do you see if SNMP queries are working?

How do you see if SNMP queries are working?

Hello. We just upgraded from FWA 5 to FWA 6. We are using Netscreen 5GT firewalls.
The Live traffic reports used to be only populated by Syslog logs in Version 5. 

After the upgrade I wanted to start using SNMP as well. On the Live Reports page I entered the Global SNMP Parameters. 3 questions about this:

1- I assume I have to enter the Listening port (default 161) and not the Trap port (Default 162) ??
2- I saved the SNMP settings (I see a green success message) but when I reopen the SNMP parameters page the fields are still blank. Is this normal? Or should I see the parameters that I entered before?

3- How do I see if my netscreens are queried by SNMP for the live reports? I don't see any difference between before when the reports were created by using only Syslog?

Thanks in advance for your answers!

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