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Forum Discussion

xMadi's avatar
xMadi
Icon for Nimbostratus rankNimbostratus
Aug 06, 2019

LTM Health monitors logs

Hello, can someone please explain me logs of failed LTM monitors on pool members ? Trying to figure out why the monitor failed for a certain pool member and this is what I see in logs   /Common/T...
application delivery
BIG-IP
LTM
MaryV's avatar
MaryV
Icon for Nimbostratus rankNimbostratus
Aug 06, 2019

Is http the only monitor you have for those pool members?

 

If so can you also configure an ICMP monitor and see whether when this is happening icmp also fails?

 

If icmp fails at the same time you are probably looking from some connectivity issue. Check MAC/ARP tables, interface flaps and so on.

 

If only the HTTP monitor fails then your best shot is to capture traffic on the LTM while the problem is ongoing and see what the response from the server is.