Wondering if you could help with an issue we are seeing with performance of a particular application is much better when routed through a SSG 550 than via an SRX550.
When using the built in performance test within the application the SSG will run through the test fine but when using the SRX it will pause/hang for a few seconds before continuing so this traffic being dropped is causing the performance loss. When running wireshark on the client it shows TCP retrasmissions, which backs up that the SRX is dropping certain types of traffic.
I don't believe this is a configuration issue as I have reset the SRX to factory settings so this is something that the SRX does by default that is causing the issue.
I have removed the screen options, there is no IDP running, I have disabled all the ALG's. I also thought it could be the sequence or syn checks so I disabled them with the following commands but the issue still remains 😞
set security flow tcp-session no-sequence-check set security flow tcp-session no-syn-check
What else does the SRX performance by default that the SSG does not that could be causing the issue we are seeing ??