If PI server is down , can we capture it in a proxy

Hi Experts ,

mine is a proxy to PI to File scenerio. Currently we have a requirement . SAP will send some data to PI using proxy, and if PI is down then a z table in SAP ECC gets checked with a flag status.

The issue is , if PI is down , Pi cannot send any such ack error , etc, however is there any work around code possible at proxy end that can be written , so that it checks PI server port , and revert back with a status, and that status is checked in the proxy, and the flag status is changed.

Is it possible. I can wash of my hands sayin this requirement is NOT feasible, but was just wonderin , if any work around can satisfy the requirement .

P.S. Idocs cannot be used in this case'.

Regards,

Arnab.