User`s guide

SECURE SITE MANAGERS
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10.3. How and When SNMP Traps are Sent:
1. When the buffer port reaches the trigger level, SNMP Traps are immediately
sent to each defined SNMP manager. SNMP uses the UDP protocol (an
“unreliable” protocol). Successful manager receipt of traps are assisted by
the following:
a) The Secure Site Manager verifies that the ARP table is updated
completely before sending a trap to each manager defined.
b) The user may choose to use the 2nd manager as a “backup” in the event
that the 1st manager fails.
2. When an SNMP trap is sent to a manager for a particular port, the Secure Site
Manager also sets a one hour timer for that port:
a) If, during the hour, the buffer never drops below the trap level, then
SNMP Traps are resent and the timer is reset.
b) If, during the hour, the buffer does drop below the trap level, the timer is
immediately cleared. No more traps will be sent unless the buffer level
once again exceeds the trap trigger level.
10.4. Testing the SNMP Trap Function
After you have finished setting up the SNMP Trap function, it is recommended to test
the configuration to ensure that it is working correctly. To test configuration of the
SNMP Trap function, proceed as follows:
1. Configure the SNMP Trap function as described in Section 10.1.
2. Access the Text Interface command mode using an account and port that
permit Supervisor commands, then invoke the “/TEST” command at the text
interface command prompt. Note that the /TEST Command is only available
in Supervisor Mode.
3. Select Item 1 or 2 to send an SNMP test trap to Manager 1 or 2, respectively.
It is possible that the ARP table will not be properly set up. If this occurs a
message to that effect is displayed and the Secure Site Manager immediately
refreshes the ARP table. Repeat steps 2 and 3 to try again.