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Forum Discussion

Julian_Kippels_'s avatar
Julian_Kippels_
Icon for Nimbostratus rankNimbostratus
Jul 04, 2016

Connections with virtual server lost?

Hi,   I am experiencing strange bugs with my mail servers. The servers are behind a virtual server IP. Usually every connection to those servers is logged by them. But sometimes I am notified by o...
application delivery
BIG-IP
LTM
tatmotiv's avatar
tatmotiv
Icon for Cirrostratus rankCirrostratus
Jul 04, 2016

You could start checking the statistics of your tcp profile (virtual server -> statistics -> select tcp profile at the bottom). Maybe there you can find some counters pointing you into the right direction. Also, the /var/log/ltm logfile might contain useful information. If that doesn't give you any insight, try capturing those faulty connection attempts with tcpdump. If you cannot see the erroneous connection attempts there at all, some device before the BigIP might be causing problems (router, firewall...).

 

HTH

 

Martin