1. Create item
   • Type
     Zabbix trapper
   • Key
     test
   • Type of information
     Numeric (unsigned)
2. Create trigger
   • Operational data {ITEM.VALUE}
   • Expression
     last(/Zabbix server/test)>0
   • Problem generation
     zabbix_sender -z 127.0.0.1 -s "Zabbix server" -k test -o 2
     zabbix_sender -z 127.0.0.1 -s "Zabbix server" -k test -o 1
3. Displaying "Monitoring -> Problems"

   Status	Operational data
   PROBLEM	1
   PROBLEM	2

Recovery with monitoring data

• Recovery generation
  zabbix_sender -z 127.0.0.1 -s "Zabbix server" -k test -o 0
   
  Displaying "Monitoring -> Problems"

  Status	Operational data
  PROBLEM	0
  PROBLEM	0

  

Recovery with "manual close"

• manual close
  
   
  Displaying "Monitoring -> Problems"

  Status	Operational data
  RESOLVED	1
  RESOLVED	1

  

There is no monitoring data for manual closures.
Therefore, it is believed that inaccurate monitoring data is displayed.