Hi, Sorry for my poor English. I set up cacti to poll the squid status data, it is working ok. But at rush hour every day(9:00~9:30AM, 12:00~13:PM), the polling script cannot get Number of HTTP requests received: The script command is : snmpwalk -v2c -Cc -c community squid_server:snmp_port .1.3.6.1.4.1.3495.1.3.2.1.1.0 Other snmp data is ok, such as Http Hits, Request Hit Ratio. Does anyone know this issue? Thanks for your great help! Best Regards, Weiguo Yang Email:weiguo.yang@xxxxxxxxxxxx ===========================================