Example: Controlling Event Policy Using a Regular Expression
The following policy is executed only if the interface-name attribute in both traps (SNMP_TRAP_LINK_DOWN and SNMP_TRAP_LINK_UP) match each other and the interface-name attribute in the SNMP_TRAP_LINK_DOWN trap starts with
letter t. This means the policy is executed only
for T1 (t1-) and T3 (t3-) interfaces. The policy is not executed when
the eventd process receives traps from other interfaces.
Note:
In system log files, the message tags appear in all uppercase letters. In the command-line interface (CLI), the message tags appear in all lowercase letters.
[edit event-options]
policy pol6 {
events snmp_trap_link_down;
within 120 events snmp_trap_link_up;
attributes-match {
snmp_trap_link_up.interface-name equals snmp_trap_link_down.interface-name;
snmp_trap_link_down.interface-name matches "^t";
}
then {
execute-commands {
commands {
"show interfaces {$$.interface-name}";
"show configuration interfaces {$$.interface-name}";
}
output-filename config.txt;
destination bsd2;
output-format text;
}
}
}