<html> <head> <meta http-equiv=Content-Type content="text/html; charset=us-ascii"> <meta name=Generator content="Microsoft Word 10 (filtered)"> <style>  </style> </head> <body lang=EN-US link=blue vlink=purple> <div class=Section1> Hello, I’ve been using check_icmp and have also used check_ping to test if a host is available or not. It seems like a simple test but I’m running into an interesting issue. I see round trip times in the 500+ ms range, which causes an alert. At first I thought we had a network issue, but when I PING directly to the host which I’m running the check, I receive round trip times in the 1-2ms range, which is puzzling to me. On some sensors I’m testing 40+ hosts with check_icmp, and another sensor I’m only testing 10 hosts, I see the same issue on both sensors. So it doesn’t look like its amount of tests I’m running. I wonder what I’m seeing is the time for the complete check to take place for each host. Has anyone else seen this issue? Thanks! Mike </div> </body> </html>