Forum Discussion
fanttazio_23961
Altostratus
AltostratusTCP reset connection with MSSQL
Hello all,
Disclaimer: I'm not an F5 expert and just started working and learning it so apologies in advanced if I say something that doesn't make sense or wrong. The issue:
We are doing SSL offl...
OK. I think I've found my answer. This should be the monitoring mechanism by the F5:
Monitoring section on https://support.f5.com/kb/en-us/solutions/public/9000/800/sol9812.html
The tcp_half_open monitor performs a simple check on the pool member service by sending a TCP SYN packet to the service port. When the monitor receives the SYN-ACK packet from the pool member, the monitor considers the service to be up, and sends a TCP RST packet to the service instead of completing the three-way handshake. The TCP RST packet is typically sent on the server side of the connection, and the source IP address of the reset is the relevant self IP address of the VLAN.
fanttazio_23961Altostratus
AltostratusOK. I think I've found my answer. This should be the monitoring mechanism by the F5:
Monitoring section on https://support.f5.com/kb/en-us/solutions/public/9000/800/sol9812.html
The tcp_half_open monitor performs a simple check on the pool member service by sending a TCP SYN packet to the service port. When the monitor receives the SYN-ACK packet from the pool member, the monitor considers the service to be up, and sends a TCP RST packet to the service instead of completing the three-way handshake. The TCP RST packet is typically sent on the server side of the connection, and the source IP address of the reset is the relevant self IP address of the VLAN.