I ma trying to set up a monitor http for every 5 min interval.
get some file with response code.
GET /check HTTP/1.0\r\n\r\n
interval 299 sec
timeout 301 sec.
return string : live
Can any one tell me how long the monitor will detect the site is down.
How many queiers are sent to the server ever in a 20 min windows.
When the response is not live , when will the server node be marked down.
I see the default values as 5 to 16 interval. Does it mean i need to multiple the interval*3 +1 which makes 5 min interval to be 16 min. So does this mean F5 determines to make the node after after 16 min.
Are my calculations and understanding correct.
We recommend that you use a 3+1 interval timeout. Keep in mind, we keep sending monitors even when the system is down. A five minute interval is extremely long, but might make sense in your situation. Our default is a five second interval with a sixteen second timeout. In that situation (taking a simple SYN monitor), we would work as follows:
0 sec - SYN
5 sec - SYN
10 sec - SYN
15 sec - SYN
16 sec - we would mark the pool member down here
20 sec - SYN
25 sec - SYN
30 sec - SYN
ACK - we would mark the pool member up here, unless told otherwise by the config.
If you had an HTTP monitor, there would just be more traffic, and with a 5 minute interval and sixteen minute timeout, we would send a monitor every five minutes and mark the pool member down after sixteen minutes of no response. You would still have only four monitor outstanding, however.