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Forum Discussion

Msaad's avatar
Msaad
Icon for Nimbostratus rankNimbostratus
Dec 29, 2020

F5 Big IP resets the connection after receiving SynAck

Hello,   I'm trying to create a pool that includes two members listening on port HTTPS customized port 7000, I'm using https monitor but pool never comes up. they are working only with ICMP. After ...
application delivery
BIG-IP
LTM
Dario_Garrido's avatar
Dario_Garrido
Icon for Noctilucent rankNoctilucent
Dec 29, 2020

Hello Msaad.

 

This could be caused by a bug:

https://cdn.f5.com/product/bugtracker/ID773229.html

https://cdn.f5.com/product/bugtracker/ID536563.html

https://cdn.f5.com/product/bugtracker/ID652977.html

 

I would also check that you are not reaching more than 65k connections for that internal IP.

Just in case, are you using a 'tcp_half_open' monitor?

 

Please, share some more info (release, monitor config, etc).

 

Regards,

Dario.