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AltostratusTCP Profile with Verified Accept enabled and three-way TCP handshake
with verified accept: server side 3 way handshake completes before f5 replies SYN-ACK to client's SYN
MVPHiii Diego, how r u?
With Verified Accept enabled, the BIG-IP completes the server-side three-way handshake before completing the client-side handshake. The client does not receive a SYN-ACK until the selected pool member has successfully responded to the SYN. This guarantees that the connection is only accepted if a backend server is actually reachable
AltostratusHi Jose, thank you for your reply.
The client does not receive a SYN-ACK until the selected pool member has successfully responded to the SYN, ok. But the ACK to the pool member that complete the three-way server-side handshake is sent before or after the SYN-ACK to the client ?
Is the SYN-ACK that the server sent to reply to the SYN of the Big IP the guarantee that the connection is accepted ?
If the server-side three-way handshake occurs before the client-side three-way handshake, what it means that :
Verified Accept enabled: CLIENT_ACCEPTED -> LB_SELECTED -> SERVER_CONNECTED -> HTTP_REQUEST -> HTTP_REQUEST_SEND
Thanks
- zamroni777
with verified accept: server side 3 way handshake completes before f5 replies SYN-ACK to client's SYN
- diego2
Ok, thank you for you reply.
So, could you help me understand exactly what that means
CLIENT_ACCEPTED -> LB_SELECTED -> SERVER_CONNECTED -> HTTP_REQUEST -> HTTP_REQUEST_SEND
Thanks
